merge master

123 files changed, 5829 insertions, 4249 deletions

diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/Constants.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/Constants.java
index 4428c7133..f9a7962ec 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/Constants.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/Constants.java
@@ -16,10 +16,15 @@
 
 package org.sufficientlysecure.keychain;
 
-import org.spongycastle.jce.provider.BouncyCastleProvider;
-
 import android.os.Environment;
 
+import org.spongycastle.jce.provider.BouncyCastleProvider;
+import org.sufficientlysecure.keychain.remote.ui.AppsListActivity;
+import org.sufficientlysecure.keychain.ui.DecryptActivity;
+import org.sufficientlysecure.keychain.ui.EncryptActivity;
+import org.sufficientlysecure.keychain.ui.ImportKeysActivity;
+import org.sufficientlysecure.keychain.ui.KeyListActivity;
+
 public final class Constants {
 
     public static final boolean DEBUG = BuildConfig.DEBUG;
@@ -40,12 +45,14 @@ public final class Constants {
 
     public static final String INTENT_PREFIX = PACKAGE_NAME + ".action.";
 
-    public static final class path {
+    public static final class Path {
         public static final String APP_DIR = Environment.getExternalStorageDirectory()
                 + "/OpenPGP-Keychain";
+        public static final String APP_DIR_FILE_SEC = APP_DIR + "/secexport.asc";
+        public static final String APP_DIR_FILE_PUB = APP_DIR + "/pubexport.asc";
     }
 
-    public static final class pref {
+    public static final class Pref {
         public static final String DEFAULT_ENCRYPTION_ALGORITHM = "defaultEncryptionAlgorithm";
         public static final String DEFAULT_HASH_ALGORITHM = "defaultHashAlgorithm";
         public static final String DEFAULT_ASCII_ARMOUR = "defaultAsciiArmour";
@@ -57,8 +64,17 @@ public final class Constants {
         public static final String KEY_SERVERS = "keyServers";
     }
 
-    public static final class defaults {
+    public static final class Defaults {
         public static final String KEY_SERVERS = "pool.sks-keyservers.net, subkeys.pgp.net, pgp.mit.edu";
     }
 
+    public static final class DrawerItems {
+        public static final Class KEY_LIST = KeyListActivity.class;
+        public static final Class ENCRYPT = EncryptActivity.class;
+        public static final Class DECRYPT = DecryptActivity.class;
+        public static final Class IMPORT_KEYS = ImportKeysActivity.class;
+        public static final Class REGISTERED_APPS_LIST = AppsListActivity.class;
+        public static final Class[] ARRAY = new Class[]{KEY_LIST, ENCRYPT, DECRYPT,
+                                                IMPORT_KEYS, REGISTERED_APPS_LIST};
+    }
 }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/Id.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/Id.java
index 1d79edd43..784ec340e 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/Id.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/Id.java
@@ -119,6 +119,7 @@ public final class Id {
         public static final int secret_key = 0x21070002;
         public static final int user_id = 0x21070003;
         public static final int key = 0x21070004;
+        public static final int public_secret_key = 0x21070005;
     }
 
     public static final class choice {
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/KeychainApplication.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/KeychainApplication.java
index 4a25f2df1..98b827542 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/KeychainApplication.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/KeychainApplication.java
@@ -64,7 +64,7 @@ public class KeychainApplication extends Application {
 
         // Create APG directory on sdcard if not existing
         if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
-            File dir = new File(Constants.path.APP_DIR);
+            File dir = new File(Constants.Path.APP_DIR);
             if (!dir.exists() && !dir.mkdirs()) {
                 // ignore this for now, it's not crucial
                 // that the directory doesn't exist at this point
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/compatibility/ClipboardReflection.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/compatibility/ClipboardReflection.java
index 032af4c71..3164de7d1 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/compatibility/ClipboardReflection.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/compatibility/ClipboardReflection.java
@@ -59,7 +59,6 @@ public class ClipboardReflection {
      * Wrapper around ClipboardManager based on Android version using Reflection API
      * 
      * @param context
-     * @param text
      */
     public static CharSequence getClipboardText(Context context) {
         Object clipboard = context.getSystemService(Context.CLIPBOARD_SERVICE);
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/compatibility/DialogFragmentWorkaround.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/compatibility/DialogFragmentWorkaround.java
index a209f16cf..36f7fd23b 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/compatibility/DialogFragmentWorkaround.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/compatibility/DialogFragmentWorkaround.java
@@ -37,8 +37,9 @@ import android.os.Handler;
  * </code>
  */
 public class DialogFragmentWorkaround {
-    public static final SDKLevel17Interface INTERFACE = ((Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) ? new SDKLevel17Impl()
-            : new SDKLevelPriorLevel17Impl());
+    public static final SDKLevel17Interface INTERFACE =
+                ((Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) ? new SDKLevel17Impl()
+                 : new SDKLevelPriorLevel17Impl());
 
     private static final int RUNNABLE_DELAY = 300;
 
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/helper/ActionBarHelper.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/helper/ActionBarHelper.java
index b55075e6c..a26df556d 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/helper/ActionBarHelper.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/helper/ActionBarHelper.java
@@ -17,28 +17,26 @@
 
 package org.sufficientlysecure.keychain.helper;
 
-import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.util.Log;
-
 import android.app.Activity;
 import android.support.v7.app.ActionBar;
 import android.support.v7.app.ActionBarActivity;
 import android.view.LayoutInflater;
 import android.view.View;
-import android.view.ViewGroup;
 import android.view.View.OnClickListener;
+import android.view.ViewGroup;
 import android.widget.TextView;
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.util.Log;
 
 public class ActionBarHelper {
 
     /**
      * Set actionbar without home button if called from another app
-     * 
+     *
      * @param activity
      */
     public static void setBackButton(ActionBarActivity activity) {
-        // set actionbar without home button if called from another app
         final ActionBar actionBar = activity.getSupportActionBar();
         Log.d(Constants.TAG, "calling package (only set when using startActivityForResult)="
                 + activity.getCallingPackage());
@@ -54,30 +52,35 @@ public class ActionBarHelper {
 
     /**
      * Sets custom view on ActionBar for Done/Cancel activities
-     * 
+     *
      * @param actionBar
-     * @param doneText
-     * @param doneOnClickListener
-     * @param cancelText
-     * @param cancelOnClickListener
+     * @param firstText
+     * @param firstDrawableId
+     * @param firstOnClickListener
+     * @param secondText
+     * @param secondDrawableId
+     * @param secondOnClickListener
      */
-    public static void setDoneCancelView(ActionBar actionBar, int doneText,
-            OnClickListener doneOnClickListener, int cancelText,
-            OnClickListener cancelOnClickListener) {
+    public static void setTwoButtonView(ActionBar actionBar,
+                                int firstText, int firstDrawableId, OnClickListener firstOnClickListener,
+                                int secondText, int secondDrawableId, OnClickListener secondOnClickListener) {
 
-        // Inflate a "Done"/"Cancel" custom action bar view
+        // Inflate the custom action bar view
         final LayoutInflater inflater = (LayoutInflater) actionBar.getThemedContext()
                 .getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
         final View customActionBarView = inflater.inflate(
                 R.layout.actionbar_custom_view_done_cancel, null);
 
-        ((TextView) customActionBarView.findViewById(R.id.actionbar_done_text)).setText(doneText);
+        TextView firstTextView = ((TextView) customActionBarView.findViewById(R.id.actionbar_done_text));
+        firstTextView.setText(firstText);
+        firstTextView.setCompoundDrawablesWithIntrinsicBounds(firstDrawableId, 0, 0, 0);
         customActionBarView.findViewById(R.id.actionbar_done).setOnClickListener(
-                doneOnClickListener);
-        ((TextView) customActionBarView.findViewById(R.id.actionbar_cancel_text))
-                .setText(cancelText);
+                firstOnClickListener);
+        TextView secondTextView = ((TextView) customActionBarView.findViewById(R.id.actionbar_cancel_text));
+        secondTextView.setText(secondText);
+        secondTextView.setCompoundDrawablesWithIntrinsicBounds(secondDrawableId, 0, 0, 0);
         customActionBarView.findViewById(R.id.actionbar_cancel).setOnClickListener(
-                cancelOnClickListener);
+                secondOnClickListener);
 
         // Show the custom action bar view and hide the normal Home icon and title.
         actionBar.setDisplayShowTitleEnabled(false);
@@ -89,22 +92,24 @@ public class ActionBarHelper {
 
     /**
      * Sets custom view on ActionBar for Done activities
-     * 
+     *
      * @param actionBar
-     * @param doneText
-     * @param doneOnClickListener
+     * @param firstText
+     * @param firstOnClickListener
      */
-    public static void setDoneView(ActionBar actionBar, int doneText,
-            OnClickListener doneOnClickListener) {
+    public static void setOneButtonView(ActionBar actionBar, int firstText, int firstDrawableId,
+                                        OnClickListener firstOnClickListener) {
         // Inflate a "Done" custom action bar view to serve as the "Up" affordance.
         final LayoutInflater inflater = (LayoutInflater) actionBar.getThemedContext()
                 .getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
         final View customActionBarView = inflater
                 .inflate(R.layout.actionbar_custom_view_done, null);
 
-        ((TextView) customActionBarView.findViewById(R.id.actionbar_done_text)).setText(doneText);
+        TextView firstTextView = ((TextView) customActionBarView.findViewById(R.id.actionbar_done_text));
+        firstTextView.setText(firstText);
+        firstTextView.setCompoundDrawablesWithIntrinsicBounds(firstDrawableId, 0, 0, 0);
         customActionBarView.findViewById(R.id.actionbar_done).setOnClickListener(
-                doneOnClickListener);
+                firstOnClickListener);
 
         // Show the custom action bar view and hide the normal Home icon and title.
         actionBar.setDisplayShowTitleEnabled(false);
@@ -112,5 +117,4 @@ public class ActionBarHelper {
         actionBar.setDisplayShowCustomEnabled(true);
         actionBar.setCustomView(customActionBarView);
     }
-
 }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/helper/ContactHelper.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/helper/ContactHelper.java
new file mode 100644
index 000000000..f8ed21816
--- /dev/null
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/helper/ContactHelper.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.sufficientlysecure.keychain.helper;
+
+import android.accounts.Account;
+import android.accounts.AccountManager;
+import android.content.Context;
+import android.util.Patterns;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+public class ContactHelper {
+
+    public static final List<String> getMailAccounts(Context context) {
+        final Account[] accounts = AccountManager.get(context).getAccounts();
+        final Set<String> emailSet = new HashSet<String>();
+        for (Account account : accounts) {
+            if (Patterns.EMAIL_ADDRESS.matcher(account.name).matches()) {
+                emailSet.add(account.name);
+            }
+        }
+        return new ArrayList<String>(emailSet);
+    }
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/helper/ExportHelper.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/helper/ExportHelper.java
index 21676a2a7..cc240a67b 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/helper/ExportHelper.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/helper/ExportHelper.java
@@ -16,10 +16,21 @@
 
 package org.sufficientlysecure.keychain.helper;
 
+import android.app.ProgressDialog;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+import android.os.Messenger;
+import android.support.v7.app.ActionBarActivity;
+import android.widget.Toast;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.Id;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.compatibility.DialogFragmentWorkaround;
+import org.sufficientlysecure.keychain.provider.KeychainContract;
 import org.sufficientlysecure.keychain.provider.ProviderHelper;
 import org.sufficientlysecure.keychain.service.KeychainIntentService;
 import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
@@ -27,44 +38,38 @@ import org.sufficientlysecure.keychain.ui.dialog.DeleteKeyDialogFragment;
 import org.sufficientlysecure.keychain.ui.dialog.FileDialogFragment;
 import org.sufficientlysecure.keychain.util.Log;
 
-import android.app.ProgressDialog;
-import android.content.Intent;
-import android.net.Uri;
-import android.os.Bundle;
-import android.os.Handler;
-import android.os.Message;
-import android.os.Messenger;
-import android.support.v7.app.ActionBarActivity;
-import android.widget.Toast;
+import java.lang.reflect.Array;
+import java.security.Provider;
+import java.util.ArrayList;
 
 public class ExportHelper {
     protected FileDialogFragment mFileDialog;
     protected String mExportFilename;
 
-    ActionBarActivity activity;
+    ActionBarActivity mActivity;
 
     public ExportHelper(ActionBarActivity activity) {
         super();
-        this.activity = activity;
+        this.mActivity = activity;
     }
 
-    public void deleteKey(Uri dataUri, final int keyType, Handler deleteHandler) {
+    public void deleteKey(Uri dataUri, Handler deleteHandler) {
         long keyRingRowId = Long.valueOf(dataUri.getLastPathSegment());
 
         // Create a new Messenger for the communication back
         Messenger messenger = new Messenger(deleteHandler);
 
         DeleteKeyDialogFragment deleteKeyDialog = DeleteKeyDialogFragment.newInstance(messenger,
-                new long[] { keyRingRowId }, keyType);
+                new long[]{keyRingRowId});
 
-        deleteKeyDialog.show(activity.getSupportFragmentManager(), "deleteKeyDialog");
+        deleteKeyDialog.show(mActivity.getSupportFragmentManager(), "deleteKeyDialog");
     }
 
     /**
      * Show dialog where to export keys
      */
-    public void showExportKeysDialog(final Uri dataUri, final int keyType,
-            final String exportFilename) {
+    public void showExportKeysDialog(final long[] masterKeyIds, final int keyType,
+                                     final String exportFilename, final String checkboxString) {
         mExportFilename = exportFilename;
 
         // Message is received after file is selected
@@ -73,9 +78,14 @@ public class ExportHelper {
             public void handleMessage(Message message) {
                 if (message.what == FileDialogFragment.MESSAGE_OKAY) {
                     Bundle data = message.getData();
+                    int type = keyType;
                     mExportFilename = data.getString(FileDialogFragment.MESSAGE_DATA_FILENAME);
 
-                    exportKeys(dataUri, keyType);
+                    if( data.getBoolean(FileDialogFragment.MESSAGE_DATA_CHECKED) ) {
+                        type = Id.type.public_secret_key;
+                    }
+
+                    exportKeys(masterKeyIds, type);
                 }
             }
         };
@@ -86,25 +96,20 @@ public class ExportHelper {
         DialogFragmentWorkaround.INTERFACE.runnableRunDelayed(new Runnable() {
             public void run() {
                 String title = null;
-                if (dataUri == null) {
+                if (masterKeyIds == null) {
                     // export all keys
-                    title = activity.getString(R.string.title_export_keys);
+                    title = mActivity.getString(R.string.title_export_keys);
                 } else {
                     // export only key specified at data uri
-                    title = activity.getString(R.string.title_export_key);
+                    title = mActivity.getString(R.string.title_export_key);
                 }
 
-                String message = null;
-                if (keyType == Id.type.public_key) {
-                    message = activity.getString(R.string.specify_file_to_export_to);
-                } else {
-                    message = activity.getString(R.string.specify_file_to_export_secret_keys_to);
-                }
+                String message = mActivity.getString(R.string.specify_file_to_export_to);
 
                 mFileDialog = FileDialogFragment.newInstance(messenger, title, message,
-                        exportFilename, null);
+                        exportFilename, checkboxString);
 
-                mFileDialog.show(activity.getSupportFragmentManager(), "fileDialog");
+                mFileDialog.show(mActivity.getSupportFragmentManager(), "fileDialog");
             }
         });
     }
@@ -112,11 +117,11 @@ public class ExportHelper {
     /**
      * Export keys
      */
-    public void exportKeys(Uri dataUri, int keyType) {
+    public void exportKeys(long[] masterKeyIds, int keyType) {
         Log.d(Constants.TAG, "exportKeys started");
 
         // Send all information needed to service to export key in other thread
-        Intent intent = new Intent(activity, KeychainIntentService.class);
+        final Intent intent = new Intent(mActivity, KeychainIntentService.class);
 
         intent.setAction(KeychainIntentService.ACTION_EXPORT_KEYRING);
 
@@ -126,22 +131,27 @@ public class ExportHelper {
         data.putString(KeychainIntentService.EXPORT_FILENAME, mExportFilename);
         data.putInt(KeychainIntentService.EXPORT_KEY_TYPE, keyType);
 
-        if (dataUri == null) {
+        if (masterKeyIds == null) {
             data.putBoolean(KeychainIntentService.EXPORT_ALL, true);
         } else {
-            // TODO: put data uri into service???
-            long keyRingMasterKeyId = ProviderHelper.getMasterKeyId(activity, dataUri);
-
-            data.putLong(KeychainIntentService.EXPORT_KEY_RING_MASTER_KEY_ID, keyRingMasterKeyId);
+            data.putLongArray(KeychainIntentService.EXPORT_KEY_RING_MASTER_KEY_ID, masterKeyIds);
         }
 
         intent.putExtra(KeychainIntentService.EXTRA_DATA, data);
 
-        // Message is received after exporting is done in ApgService
-        KeychainIntentServiceHandler exportHandler = new KeychainIntentServiceHandler(activity,
-                R.string.progress_exporting, ProgressDialog.STYLE_HORIZONTAL) {
+        // Message is received after exporting is done in KeychainIntentService
+        KeychainIntentServiceHandler exportHandler = new KeychainIntentServiceHandler(mActivity,
+                mActivity.getString(R.string.progress_exporting),
+                ProgressDialog.STYLE_HORIZONTAL,
+                true,
+                new DialogInterface.OnCancelListener() {
+                                @Override
+                                public void onCancel(DialogInterface dialogInterface) {
+                                    mActivity.stopService(intent);
+                                }
+        }) {
             public void handleMessage(Message message) {
-                // handle messages by standard ApgHandler first
+                // handle messages by standard KeychainIntentServiceHandler first
                 super.handleMessage(message);
 
                 if (message.arg1 == KeychainIntentServiceHandler.MESSAGE_OKAY) {
@@ -151,16 +161,16 @@ public class ExportHelper {
                     int exported = returnData.getInt(KeychainIntentService.RESULT_EXPORT);
                     String toastMessage;
                     if (exported == 1) {
-                        toastMessage = activity.getString(R.string.key_exported);
+                        toastMessage = mActivity.getString(R.string.key_exported);
                     } else if (exported > 0) {
-                        toastMessage = activity.getString(R.string.keys_exported, exported);
+                        toastMessage = mActivity.getString(R.string.keys_exported, exported);
                     } else {
-                        toastMessage = activity.getString(R.string.no_keys_exported);
+                        toastMessage = mActivity.getString(R.string.no_keys_exported);
                     }
-                    Toast.makeText(activity, toastMessage, Toast.LENGTH_SHORT).show();
+                    Toast.makeText(mActivity, toastMessage, Toast.LENGTH_SHORT).show();
 
                 }
-            };
+            }
         };
 
         // Create a new Messenger for the communication back
@@ -168,10 +178,10 @@ public class ExportHelper {
         intent.putExtra(KeychainIntentService.EXTRA_MESSENGER, messenger);
 
         // show progress dialog
-        exportHandler.showProgressDialog(activity);
+        exportHandler.showProgressDialog(mActivity);
 
         // start service with intent
-        activity.startService(intent);
+        mActivity.startService(intent);
     }
 
 }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/helper/FileHelper.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/helper/FileHelper.java
index ec56fe912..d24aeca52 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/helper/FileHelper.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/helper/FileHelper.java
@@ -17,10 +17,6 @@
 
 package org.sufficientlysecure.keychain.helper;
 
-import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.util.Log;
-
 import android.app.Activity;
 import android.content.ActivityNotFoundException;
 import android.content.Context;
@@ -30,12 +26,15 @@ import android.net.Uri;
 import android.os.Environment;
 import android.support.v4.app.Fragment;
 import android.widget.Toast;
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.util.Log;
 
 public class FileHelper {
 
     /**
      * Checks if external storage is mounted if file is located on external storage
-     * 
+     *
      * @param file
      * @return true if storage is mounted
      */
@@ -52,15 +51,12 @@ public class FileHelper {
     /**
      * Opens the preferred installed file manager on Android and shows a toast if no manager is
      * installed.
-     * 
+     *
      * @param activity
-     * @param filename
-     *            default selected file, not supported by all file managers
-     * @param mimeType
-     *            can be text/plain for example
-     * @param requestCode
-     *            requestCode used to identify the result coming back from file manager to
-     *            onActivityResult() in your activity
+     * @param filename    default selected file, not supported by all file managers
+     * @param mimeType    can be text/plain for example
+     * @param requestCode requestCode used to identify the result coming back from file manager to
+     *                    onActivityResult() in your activity
      */
     public static void openFile(Activity activity, String filename, String mimeType, int requestCode) {
         Intent intent = buildFileIntent(filename, mimeType);
@@ -97,14 +93,13 @@ public class FileHelper {
 
     /**
      * Get a file path from a Uri.
-     * 
+     * <p/>
      * from https://github.com/iPaulPro/aFileChooser/blob/master/aFileChooser/src/com/ipaulpro/
      * afilechooser/utils/FileUtils.java
-     * 
+     *
      * @param context
      * @param uri
      * @return
-     * 
      * @author paulburke
      */
     public static String getPath(Context context, Uri uri) {
@@ -115,21 +110,19 @@ public class FileHelper {
                         + uri.getPathSegments().toString());
 
         if ("content".equalsIgnoreCase(uri.getScheme())) {
-            String[] projection = { "_data" };
+            String[] projection = {"_data"};
             Cursor cursor = null;
 
             try {
                 cursor = context.getContentResolver().query(uri, projection, null, null, null);
-                int column_index = cursor.getColumnIndexOrThrow("_data");
+                int columnIndex = cursor.getColumnIndexOrThrow("_data");
                 if (cursor.moveToFirst()) {
-                    return cursor.getString(column_index);
+                    return cursor.getString(columnIndex);
                 }
             } catch (Exception e) {
                 // Eat it
             }
-        }
-
-        else if ("file".equalsIgnoreCase(uri.getScheme())) {
+        } else if ("file".equalsIgnoreCase(uri.getScheme())) {
             return uri.getPath();
         }
 
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/helper/OtherHelper.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/helper/OtherHelper.java
index 639ab17b8..b31a889f0 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/helper/OtherHelper.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/helper/OtherHelper.java
@@ -17,21 +17,22 @@
 
 package org.sufficientlysecure.keychain.helper;
 
-import java.util.Calendar;
-import java.util.GregorianCalendar;
-import java.util.Iterator;
-import java.util.Set;
+import android.os.Bundle;
+import android.text.SpannableStringBuilder;
+import android.text.Spanned;
 
+import android.text.style.StrikethroughSpan;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.util.Log;
 
-import android.os.Bundle;
+import java.util.Iterator;
+import java.util.Set;
 
 public class OtherHelper {
 
     /**
      * Logs bundle content to debug for inspecting the content
-     * 
+     *
      * @param bundle
      * @param bundleName
      */
@@ -60,4 +61,10 @@ public class OtherHelper {
         }
     }
 
+    public static SpannableStringBuilder strikeOutText(CharSequence text) {
+        SpannableStringBuilder sb = new SpannableStringBuilder(text);
+        sb.setSpan(new StrikethroughSpan(), 0, text.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
+        return sb;
+    }
+
 }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/helper/Preferences.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/helper/Preferences.java
index 493f25707..515201b92 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/helper/Preferences.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/helper/Preferences.java
@@ -17,14 +17,13 @@
 
 package org.sufficientlysecure.keychain.helper;
 
+import android.content.Context;
+import android.content.SharedPreferences;
 import org.spongycastle.bcpg.HashAlgorithmTags;
 import org.spongycastle.openpgp.PGPEncryptedData;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.Id;
 
-import android.content.Context;
-import android.content.SharedPreferences;
-
 import java.util.Vector;
 
 /**
@@ -38,8 +37,8 @@ public class Preferences {
         return getPreferences(context, false);
     }
 
-    public static synchronized Preferences getPreferences(Context context, boolean force_new) {
-        if (mPreferences == null || force_new) {
+    public static synchronized Preferences getPreferences(Context context, boolean forceNew) {
+        if (mPreferences == null || forceNew) {
             mPreferences = new Preferences(context);
         }
         return mPreferences;
@@ -50,17 +49,17 @@ public class Preferences {
     }
 
     public String getLanguage() {
-        return mSharedPreferences.getString(Constants.pref.LANGUAGE, "");
+        return mSharedPreferences.getString(Constants.Pref.LANGUAGE, "");
     }
 
     public void setLanguage(String value) {
         SharedPreferences.Editor editor = mSharedPreferences.edit();
-        editor.putString(Constants.pref.LANGUAGE, value);
+        editor.putString(Constants.Pref.LANGUAGE, value);
         editor.commit();
     }
 
     public long getPassPhraseCacheTtl() {
-        int ttl = mSharedPreferences.getInt(Constants.pref.PASS_PHRASE_CACHE_TTL, 180);
+        int ttl = mSharedPreferences.getInt(Constants.Pref.PASS_PHRASE_CACHE_TTL, 180);
         // fix the value if it was set to "never" in previous versions, which currently is not
         // supported
         if (ttl == 0) {
@@ -71,81 +70,81 @@ public class Preferences {
 
     public void setPassPhraseCacheTtl(int value) {
         SharedPreferences.Editor editor = mSharedPreferences.edit();
-        editor.putInt(Constants.pref.PASS_PHRASE_CACHE_TTL, value);
+        editor.putInt(Constants.Pref.PASS_PHRASE_CACHE_TTL, value);
         editor.commit();
     }
 
     public int getDefaultEncryptionAlgorithm() {
-        return mSharedPreferences.getInt(Constants.pref.DEFAULT_ENCRYPTION_ALGORITHM,
+        return mSharedPreferences.getInt(Constants.Pref.DEFAULT_ENCRYPTION_ALGORITHM,
                 PGPEncryptedData.AES_256);
     }
 
     public void setDefaultEncryptionAlgorithm(int value) {
         SharedPreferences.Editor editor = mSharedPreferences.edit();
-        editor.putInt(Constants.pref.DEFAULT_ENCRYPTION_ALGORITHM, value);
+        editor.putInt(Constants.Pref.DEFAULT_ENCRYPTION_ALGORITHM, value);
         editor.commit();
     }
 
     public int getDefaultHashAlgorithm() {
-        return mSharedPreferences.getInt(Constants.pref.DEFAULT_HASH_ALGORITHM,
+        return mSharedPreferences.getInt(Constants.Pref.DEFAULT_HASH_ALGORITHM,
                 HashAlgorithmTags.SHA512);
     }
 
     public void setDefaultHashAlgorithm(int value) {
         SharedPreferences.Editor editor = mSharedPreferences.edit();
-        editor.putInt(Constants.pref.DEFAULT_HASH_ALGORITHM, value);
+        editor.putInt(Constants.Pref.DEFAULT_HASH_ALGORITHM, value);
         editor.commit();
     }
 
     public int getDefaultMessageCompression() {
-        return mSharedPreferences.getInt(Constants.pref.DEFAULT_MESSAGE_COMPRESSION,
+        return mSharedPreferences.getInt(Constants.Pref.DEFAULT_MESSAGE_COMPRESSION,
                 Id.choice.compression.zlib);
     }
 
     public void setDefaultMessageCompression(int value) {
         SharedPreferences.Editor editor = mSharedPreferences.edit();
-        editor.putInt(Constants.pref.DEFAULT_MESSAGE_COMPRESSION, value);
+        editor.putInt(Constants.Pref.DEFAULT_MESSAGE_COMPRESSION, value);
         editor.commit();
     }
 
     public int getDefaultFileCompression() {
-        return mSharedPreferences.getInt(Constants.pref.DEFAULT_FILE_COMPRESSION,
+        return mSharedPreferences.getInt(Constants.Pref.DEFAULT_FILE_COMPRESSION,
                 Id.choice.compression.none);
     }
 
     public void setDefaultFileCompression(int value) {
         SharedPreferences.Editor editor = mSharedPreferences.edit();
-        editor.putInt(Constants.pref.DEFAULT_FILE_COMPRESSION, value);
+        editor.putInt(Constants.Pref.DEFAULT_FILE_COMPRESSION, value);
         editor.commit();
     }
 
     public boolean getDefaultAsciiArmour() {
-        return mSharedPreferences.getBoolean(Constants.pref.DEFAULT_ASCII_ARMOUR, false);
+        return mSharedPreferences.getBoolean(Constants.Pref.DEFAULT_ASCII_ARMOUR, false);
     }
 
     public void setDefaultAsciiArmour(boolean value) {
         SharedPreferences.Editor editor = mSharedPreferences.edit();
-        editor.putBoolean(Constants.pref.DEFAULT_ASCII_ARMOUR, value);
+        editor.putBoolean(Constants.Pref.DEFAULT_ASCII_ARMOUR, value);
         editor.commit();
     }
 
     public boolean getForceV3Signatures() {
-        return mSharedPreferences.getBoolean(Constants.pref.FORCE_V3_SIGNATURES, false);
+        return mSharedPreferences.getBoolean(Constants.Pref.FORCE_V3_SIGNATURES, false);
     }
 
     public void setForceV3Signatures(boolean value) {
         SharedPreferences.Editor editor = mSharedPreferences.edit();
-        editor.putBoolean(Constants.pref.FORCE_V3_SIGNATURES, value);
+        editor.putBoolean(Constants.Pref.FORCE_V3_SIGNATURES, value);
         editor.commit();
     }
 
     public String[] getKeyServers() {
-        String rawData = mSharedPreferences.getString(Constants.pref.KEY_SERVERS,
-                Constants.defaults.KEY_SERVERS);
+        String rawData = mSharedPreferences.getString(Constants.Pref.KEY_SERVERS,
+                Constants.Defaults.KEY_SERVERS);
         Vector<String> servers = new Vector<String>();
         String chunks[] = rawData.split(",");
-        for (int i = 0; i < chunks.length; ++i) {
-            String tmp = chunks[i].trim();
+        for (String c : chunks) {
+            String tmp = c.trim();
             if (tmp.length() > 0) {
                 servers.add(tmp);
             }
@@ -156,8 +155,8 @@ public class Preferences {
     public void setKeyServers(String[] value) {
         SharedPreferences.Editor editor = mSharedPreferences.edit();
         String rawData = "";
-        for (int i = 0; i < value.length; ++i) {
-            String tmp = value[i].trim();
+        for (String v : value) {
+            String tmp = v.trim();
             if (tmp.length() == 0) {
                 continue;
             }
@@ -166,7 +165,7 @@ public class Preferences {
             }
             rawData += tmp;
         }
-        editor.putString(Constants.pref.KEY_SERVERS, rawData);
+        editor.putString(Constants.Pref.KEY_SERVERS, rawData);
         editor.commit();
     }
 }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpConversionHelper.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpConversionHelper.java
index c7dd7d647..1f8dec7a1 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpConversionHelper.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpConversionHelper.java
@@ -17,11 +17,6 @@
 
 package org.sufficientlysecure.keychain.pgp;
 
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.Iterator;
-
 import org.spongycastle.openpgp.PGPKeyRing;
 import org.spongycastle.openpgp.PGPObjectFactory;
 import org.spongycastle.openpgp.PGPSecretKey;
@@ -29,12 +24,17 @@ import org.spongycastle.openpgp.PGPSecretKeyRing;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.util.Log;
 
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Iterator;
+
 
 public class PgpConversionHelper {
 
     /**
      * Convert from byte[] to PGPKeyRing
-     * 
+     *
      * @param keysBytes
      * @return
      */
@@ -54,7 +54,7 @@ public class PgpConversionHelper {
 
     /**
      * Convert from byte[] to ArrayList<PGPSecretKey>
-     * 
+     *
      * @param keysBytes
      * @return
      */
@@ -90,10 +90,10 @@ public class PgpConversionHelper {
 
     /**
      * Convert from byte[] to PGPSecretKey
-     * 
+     * <p/>
      * Singles keys are encoded as keyRings with one single key in it by Bouncy Castle
-     * 
-     * @param keysBytes
+     *
+     * @param keyBytes
      * @return
      */
     public static PGPSecretKey BytesToPGPSecretKey(byte[] keyBytes) {
@@ -105,13 +105,13 @@ public class PgpConversionHelper {
             Log.e(Constants.TAG, "Error while converting to PGPSecretKey!", e);
         }
         PGPSecretKey secKey = null;
-        if(obj instanceof PGPSecretKey) {
-            if ((secKey = (PGPSecretKey)obj ) == null) {
+        if (obj instanceof PGPSecretKey) {
+            if ((secKey = (PGPSecretKey) obj) == null) {
                 Log.e(Constants.TAG, "No keys given!");
             }
-        } else if(obj instanceof PGPSecretKeyRing) { //master keys are sent as keyrings
+        } else if (obj instanceof PGPSecretKeyRing) { //master keys are sent as keyrings
             PGPSecretKeyRing keyRing = null;
-            if ((keyRing = (PGPSecretKeyRing)obj) == null) {
+            if ((keyRing = (PGPSecretKeyRing) obj) == null) {
                 Log.e(Constants.TAG, "No keys given!");
             }
             secKey = keyRing.getSecretKey();
@@ -122,7 +122,7 @@ public class PgpConversionHelper {
 
     /**
      * Convert from ArrayList<PGPSecretKey> to byte[]
-     * 
+     *
      * @param keys
      * @return
      */
@@ -141,8 +141,8 @@ public class PgpConversionHelper {
 
     /**
      * Convert from PGPSecretKey to byte[]
-     * 
-     * @param keysBytes
+     *
+     * @param key
      * @return
      */
     public static byte[] PGPSecretKeyToBytes(PGPSecretKey key) {
@@ -157,8 +157,8 @@ public class PgpConversionHelper {
 
     /**
      * Convert from PGPSecretKeyRing to byte[]
-     * 
-     * @param keysBytes
+     *
+     * @param keyRing
      * @return
      */
     public static byte[] PGPSecretKeyRingToBytes(PGPSecretKeyRing keyRing) {
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpDecryptVerify.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpDecryptVerify.java
index ccd6ff8df..571729bc5 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpDecryptVerify.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpDecryptVerify.java
@@ -18,38 +18,16 @@
 package org.sufficientlysecure.keychain.pgp;
 
 import android.content.Context;
-
 import org.openintents.openpgp.OpenPgpSignatureResult;
 import org.spongycastle.bcpg.ArmoredInputStream;
 import org.spongycastle.bcpg.SignatureSubpacketTags;
-import org.spongycastle.openpgp.PGPCompressedData;
-import org.spongycastle.openpgp.PGPEncryptedData;
-import org.spongycastle.openpgp.PGPEncryptedDataList;
-import org.spongycastle.openpgp.PGPException;
-import org.spongycastle.openpgp.PGPLiteralData;
-import org.spongycastle.openpgp.PGPObjectFactory;
-import org.spongycastle.openpgp.PGPOnePassSignature;
-import org.spongycastle.openpgp.PGPOnePassSignatureList;
-import org.spongycastle.openpgp.PGPPBEEncryptedData;
-import org.spongycastle.openpgp.PGPPrivateKey;
-import org.spongycastle.openpgp.PGPPublicKey;
-import org.spongycastle.openpgp.PGPPublicKeyEncryptedData;
-import org.spongycastle.openpgp.PGPPublicKeyRing;
-import org.spongycastle.openpgp.PGPSecretKey;
-import org.spongycastle.openpgp.PGPSecretKeyRing;
-import org.spongycastle.openpgp.PGPSignature;
-import org.spongycastle.openpgp.PGPSignatureList;
-import org.spongycastle.openpgp.PGPSignatureSubpacketVector;
+import org.spongycastle.openpgp.*;
 import org.spongycastle.openpgp.PGPUtil;
 import org.spongycastle.openpgp.operator.PBEDataDecryptorFactory;
 import org.spongycastle.openpgp.operator.PBESecretKeyDecryptor;
 import org.spongycastle.openpgp.operator.PGPDigestCalculatorProvider;
 import org.spongycastle.openpgp.operator.PublicKeyDataDecryptorFactory;
-import org.spongycastle.openpgp.operator.jcajce.JcaPGPContentVerifierBuilderProvider;
-import org.spongycastle.openpgp.operator.jcajce.JcaPGPDigestCalculatorProviderBuilder;
-import org.spongycastle.openpgp.operator.jcajce.JcePBEDataDecryptorFactoryBuilder;
-import org.spongycastle.openpgp.operator.jcajce.JcePBESecretKeyDecryptorBuilder;
-import org.spongycastle.openpgp.operator.jcajce.JcePublicKeyDataDecryptorFactoryBuilder;
+import org.spongycastle.openpgp.operator.jcajce.*;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
@@ -59,12 +37,7 @@ import org.sufficientlysecure.keychain.util.InputData;
 import org.sufficientlysecure.keychain.util.Log;
 import org.sufficientlysecure.keychain.util.ProgressDialogUpdater;
 
-import java.io.BufferedInputStream;
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
+import java.io.*;
 import java.security.SignatureException;
 import java.util.Iterator;
 
@@ -72,57 +45,57 @@ import java.util.Iterator;
  * This class uses a Builder pattern!
  */
 public class PgpDecryptVerify {
-    private Context context;
-    private InputData data;
-    private OutputStream outStream;
+    private Context mContext;
+    private InputData mData;
+    private OutputStream mOutStream;
 
-    private ProgressDialogUpdater progressDialogUpdater;
-    private boolean assumeSymmetric;
-    private String passphrase;
-    private long enforcedKeyId;
+    private ProgressDialogUpdater mProgressDialogUpdater;
+    private boolean mAssumeSymmetric;
+    private String mPassphrase;
+    private long mEnforcedKeyId;
 
     private PgpDecryptVerify(Builder builder) {
         // private Constructor can only be called from Builder
-        this.context = builder.context;
-        this.data = builder.data;
-        this.outStream = builder.outStream;
-
-        this.progressDialogUpdater = builder.progressDialogUpdater;
-        this.assumeSymmetric = builder.assumeSymmetric;
-        this.passphrase = builder.passphrase;
-        this.enforcedKeyId = builder.enforcedKeyId;
+        this.mContext = builder.mContext;
+        this.mData = builder.mData;
+        this.mOutStream = builder.mOutStream;
+
+        this.mProgressDialogUpdater = builder.mProgressDialogUpdater;
+        this.mAssumeSymmetric = builder.mAssumeSymmetric;
+        this.mPassphrase = builder.mPassphrase;
+        this.mEnforcedKeyId = builder.mEnforcedKeyId;
     }
 
     public static class Builder {
         // mandatory parameter
-        private Context context;
-        private InputData data;
-        private OutputStream outStream;
+        private Context mContext;
+        private InputData mData;
+        private OutputStream mOutStream;
 
         // optional
-        private ProgressDialogUpdater progressDialogUpdater = null;
-        private boolean assumeSymmetric = false;
-        private String passphrase = "";
-        private long enforcedKeyId = 0;
+        private ProgressDialogUpdater mProgressDialogUpdater = null;
+        private boolean mAssumeSymmetric = false;
+        private String mPassphrase = "";
+        private long mEnforcedKeyId = 0;
 
         public Builder(Context context, InputData data, OutputStream outStream) {
-            this.context = context;
-            this.data = data;
-            this.outStream = outStream;
+            this.mContext = context;
+            this.mData = data;
+            this.mOutStream = outStream;
         }
 
         public Builder progressDialogUpdater(ProgressDialogUpdater progressDialogUpdater) {
-            this.progressDialogUpdater = progressDialogUpdater;
+            this.mProgressDialogUpdater = progressDialogUpdater;
             return this;
         }
 
         public Builder assumeSymmetric(boolean assumeSymmetric) {
-            this.assumeSymmetric = assumeSymmetric;
+            this.mAssumeSymmetric = assumeSymmetric;
             return this;
         }
 
         public Builder passphrase(String passphrase) {
-            this.passphrase = passphrase;
+            this.mPassphrase = passphrase;
             return this;
         }
 
@@ -134,7 +107,7 @@ public class PgpDecryptVerify {
          * @return
          */
         public Builder enforcedKeyId(long enforcedKeyId) {
-            this.enforcedKeyId = enforcedKeyId;
+            this.mEnforcedKeyId = enforcedKeyId;
             return this;
         }
 
@@ -144,14 +117,14 @@ public class PgpDecryptVerify {
     }
 
     public void updateProgress(int message, int current, int total) {
-        if (progressDialogUpdater != null) {
-            progressDialogUpdater.setProgress(message, current, total);
+        if (mProgressDialogUpdater != null) {
+            mProgressDialogUpdater.setProgress(message, current, total);
         }
     }
 
     public void updateProgress(int current, int total) {
-        if (progressDialogUpdater != null) {
-            progressDialogUpdater.setProgress(current, total);
+        if (mProgressDialogUpdater != null) {
+            mProgressDialogUpdater.setProgress(current, total);
         }
     }
 
@@ -196,7 +169,7 @@ public class PgpDecryptVerify {
     public PgpDecryptVerifyResult execute()
             throws IOException, PgpGeneralException, PGPException, SignatureException {
         // automatically works with ascii armor input and binary
-        InputStream in = PGPUtil.getDecoderStream(data.getInputStream());
+        InputStream in = PGPUtil.getDecoderStream(mData.getInputStream());
         if (in instanceof ArmoredInputStream) {
             ArmoredInputStream aIn = (ArmoredInputStream) in;
             // it is ascii armored
@@ -240,7 +213,7 @@ public class PgpDecryptVerify {
         }
 
         if (enc == null) {
-            throw new PgpGeneralException(context.getString(R.string.error_invalid_data));
+            throw new PgpGeneralException(mContext.getString(R.string.error_invalid_data));
         }
 
         InputStream clear;
@@ -250,7 +223,7 @@ public class PgpDecryptVerify {
 
         // TODO: currently we always only look at the first known key or symmetric encryption,
         // there might be more...
-        if (assumeSymmetric) {
+        if (mAssumeSymmetric) {
             PGPPBEEncryptedData pbe = null;
             Iterator<?> it = enc.getEncryptedDataObjects();
             // find secret key
@@ -264,7 +237,7 @@ public class PgpDecryptVerify {
 
             if (pbe == null) {
                 throw new PgpGeneralException(
-                        context.getString(R.string.error_no_symmetric_encryption_packet));
+                        mContext.getString(R.string.error_no_symmetric_encryption_packet));
             }
 
             updateProgress(R.string.progress_preparing_streams, currentProgress, 100);
@@ -273,7 +246,7 @@ public class PgpDecryptVerify {
                     .setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME).build();
             PBEDataDecryptorFactory decryptorFactory = new JcePBEDataDecryptorFactoryBuilder(
                     digestCalcProvider).setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME).build(
-                    passphrase.toCharArray());
+                    mPassphrase.toCharArray());
 
             clear = pbe.getDataStream(decryptorFactory);
 
@@ -290,33 +263,37 @@ public class PgpDecryptVerify {
                 Object obj = it.next();
                 if (obj instanceof PGPPublicKeyEncryptedData) {
                     PGPPublicKeyEncryptedData encData = (PGPPublicKeyEncryptedData) obj;
-                    secretKey = ProviderHelper.getPGPSecretKeyByKeyId(context, encData.getKeyID());
+                    secretKey = ProviderHelper.getPGPSecretKeyByKeyId(mContext, encData.getKeyID());
                     if (secretKey != null) {
                         // secret key exists in database
 
                         // allow only a specific key for decryption?
-                        if (enforcedKeyId != 0) {
+                        if (mEnforcedKeyId != 0) {
                             // TODO: improve this code! get master key directly!
-                            PGPSecretKeyRing secretKeyRing = ProviderHelper.getPGPSecretKeyRingByKeyId(context, encData.getKeyID());
+                            PGPSecretKeyRing secretKeyRing =
+                                    ProviderHelper.getPGPSecretKeyRingByKeyId(mContext, encData.getKeyID());
                             long masterKeyId = PgpKeyHelper.getMasterKey(secretKeyRing).getKeyID();
                             Log.d(Constants.TAG, "encData.getKeyID():" + encData.getKeyID());
-                            Log.d(Constants.TAG, "enforcedKeyId: " + enforcedKeyId);
+                            Log.d(Constants.TAG, "enforcedKeyId: " + mEnforcedKeyId);
                             Log.d(Constants.TAG, "masterKeyId: " + masterKeyId);
 
-                            if (enforcedKeyId != masterKeyId) {
-                                throw new PgpGeneralException(context.getString(R.string.error_no_secret_key_found));
+                            if (mEnforcedKeyId != masterKeyId) {
+                                throw new PgpGeneralException(
+                                        mContext.getString(R.string.error_no_secret_key_found));
                             }
                         }
 
                         pbe = encData;
 
                         // if no passphrase was explicitly set try to get it from the cache service
-                        if (passphrase == null) {
+                        if (mPassphrase == null) {
                             // returns "" if key has no passphrase
-                            passphrase = PassphraseCacheService.getCachedPassphrase(context, encData.getKeyID());
+                            mPassphrase =
+                                    PassphraseCacheService.getCachedPassphrase(mContext, encData.getKeyID());
 
-                            // if passphrase was not cached, return here indicating that a passphrase is missing!
-                            if (passphrase == null) {
+                            // if passphrase was not cached, return here
+                            // indicating that a passphrase is missing!
+                            if (mPassphrase == null) {
                                 returnData.setKeyPassphraseNeeded(true);
                                 return returnData;
                             }
@@ -330,7 +307,7 @@ public class PgpDecryptVerify {
             }
 
             if (secretKey == null) {
-                throw new PgpGeneralException(context.getString(R.string.error_no_secret_key_found));
+                throw new PgpGeneralException(mContext.getString(R.string.error_no_secret_key_found));
             }
 
             currentProgress += 5;
@@ -339,14 +316,14 @@ public class PgpDecryptVerify {
             try {
                 PBESecretKeyDecryptor keyDecryptor = new JcePBESecretKeyDecryptorBuilder()
                         .setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME).build(
-                                passphrase.toCharArray());
+                                mPassphrase.toCharArray());
                 privateKey = secretKey.extractPrivateKey(keyDecryptor);
             } catch (PGPException e) {
-                throw new PGPException(context.getString(R.string.error_wrong_passphrase));
+                throw new PGPException(mContext.getString(R.string.error_wrong_passphrase));
             }
             if (privateKey == null) {
                 throw new PgpGeneralException(
-                        context.getString(R.string.error_could_not_extract_private_key));
+                        mContext.getString(R.string.error_could_not_extract_private_key));
             }
             currentProgress += 5;
             updateProgress(R.string.progress_preparing_streams, currentProgress, 100);
@@ -386,7 +363,7 @@ public class PgpDecryptVerify {
             for (int i = 0; i < sigList.size(); ++i) {
                 signature = sigList.get(i);
                 signatureKey = ProviderHelper
-                        .getPGPPublicKeyByKeyId(context, signature.getKeyID());
+                        .getPGPPublicKeyByKeyId(mContext, signature.getKeyID());
                 if (signatureKeyId == 0) {
                     signatureKeyId = signature.getKeyID();
                 }
@@ -397,7 +374,7 @@ public class PgpDecryptVerify {
                     signatureKeyId = signature.getKeyID();
                     String userId = null;
                     PGPPublicKeyRing signKeyRing = ProviderHelper.getPGPPublicKeyRingByKeyId(
-                            context, signatureKeyId);
+                            mContext, signatureKeyId);
                     if (signKeyRing != null) {
                         userId = PgpKeyHelper.getMainUserId(PgpKeyHelper.getMasterKey(signKeyRing));
                     }
@@ -409,7 +386,8 @@ public class PgpDecryptVerify {
             signatureResult.setKeyId(signatureKeyId);
 
             if (signature != null) {
-                JcaPGPContentVerifierBuilderProvider contentVerifierBuilderProvider = new JcaPGPContentVerifierBuilderProvider()
+                JcaPGPContentVerifierBuilderProvider contentVerifierBuilderProvider =
+                        new JcaPGPContentVerifierBuilderProvider()
                         .setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME);
 
                 signature.init(contentVerifierBuilderProvider, signatureKey);
@@ -444,9 +422,9 @@ public class PgpDecryptVerify {
             int n;
             // TODO: progress calculation is broken here! Try to rework it based on commented code!
 //            int progress = 0;
-            long startPos = data.getStreamPosition();
+            long startPos = mData.getStreamPosition();
             while ((n = dataIn.read(buffer)) > 0) {
-                outStream.write(buffer, 0, n);
+                mOutStream.write(buffer, 0, n);
 //                progress += n;
                 if (signature != null) {
                     try {
@@ -460,11 +438,11 @@ public class PgpDecryptVerify {
                 // unknown size, but try to at least have a moving, slowing down progress bar
 //                currentProgress = startProgress + (endProgress - startProgress) * progress
 //                        / (progress + 100000);
-                if (data.getSize() - startPos == 0) {
+                if (mData.getSize() - startPos == 0) {
                     currentProgress = endProgress;
                 } else {
                     currentProgress = (int) (startProgress + (endProgress - startProgress)
-                            * (data.getStreamPosition() - startPos) / (data.getSize() - startPos));
+                            * (mData.getStreamPosition() - startPos) / (mData.getSize() - startPos));
                 }
                 updateProgress(currentProgress, 100);
             }
@@ -480,7 +458,7 @@ public class PgpDecryptVerify {
                 signatureResult.setSignatureOnly(false);
 
                 //Now check binding signatures
-                boolean validKeyBinding = verifyKeyBinding(context, messageSignature, signatureKey);
+                boolean validKeyBinding = verifyKeyBinding(mContext, messageSignature, signatureKey);
                 boolean validSignature = signature.verify(messageSignature);
 
                 // TODO: implement CERTIFIED!
@@ -499,7 +477,7 @@ public class PgpDecryptVerify {
             } else {
                 // failed
                 Log.d(Constants.TAG, "Integrity verification: failed!");
-                throw new PgpGeneralException(context.getString(R.string.error_integrity_check_failed));
+                throw new PgpGeneralException(mContext.getString(R.string.error_integrity_check_failed));
             }
         } else {
             // no integrity check
@@ -555,21 +533,21 @@ public class PgpDecryptVerify {
         out.close();
 
         byte[] clearText = out.toByteArray();
-        outStream.write(clearText);
+        mOutStream.write(clearText);
 
         updateProgress(R.string.progress_processing_signature, 60, 100);
         PGPObjectFactory pgpFact = new PGPObjectFactory(aIn);
 
         PGPSignatureList sigList = (PGPSignatureList) pgpFact.nextObject();
         if (sigList == null) {
-            throw new PgpGeneralException(context.getString(R.string.error_corrupt_data));
+            throw new PgpGeneralException(mContext.getString(R.string.error_corrupt_data));
         }
         PGPSignature signature = null;
         long signatureKeyId = 0;
         PGPPublicKey signatureKey = null;
         for (int i = 0; i < sigList.size(); ++i) {
             signature = sigList.get(i);
-            signatureKey = ProviderHelper.getPGPPublicKeyByKeyId(context, signature.getKeyID());
+            signatureKey = ProviderHelper.getPGPPublicKeyByKeyId(mContext, signature.getKeyID());
             if (signatureKeyId == 0) {
                 signatureKeyId = signature.getKeyID();
             }
@@ -579,7 +557,7 @@ public class PgpDecryptVerify {
             } else {
                 signatureKeyId = signature.getKeyID();
                 String userId = null;
-                PGPPublicKeyRing signKeyRing = ProviderHelper.getPGPPublicKeyRingByKeyId(context,
+                PGPPublicKeyRing signKeyRing = ProviderHelper.getPGPPublicKeyRingByKeyId(mContext,
                         signatureKeyId);
                 if (signKeyRing != null) {
                     userId = PgpKeyHelper.getMainUserId(PgpKeyHelper.getMasterKey(signKeyRing));
@@ -623,7 +601,7 @@ public class PgpDecryptVerify {
         }
 
         //Now check binding signatures
-        boolean validKeyBinding = verifyKeyBinding(context, signature, signatureKey);
+        boolean validKeyBinding = verifyKeyBinding(mContext, signature, signatureKey);
         boolean validSignature = signature.verify();
 
         if (validSignature & validKeyBinding) {
@@ -638,7 +616,8 @@ public class PgpDecryptVerify {
         return returnData;
     }
 
-    private static boolean verifyKeyBinding(Context context, PGPSignature signature, PGPPublicKey signatureKey) {
+    private static boolean verifyKeyBinding(Context context,
+                                            PGPSignature signature, PGPPublicKey signatureKey) {
         long signatureKeyId = signature.getKeyID();
         boolean validKeyBinding = false;
 
@@ -673,7 +652,8 @@ public class PgpDecryptVerify {
             //about keys without subkey signing. Can't get it to import a slightly broken one
             //either, so we will err on bad subkey binding here.
             PGPSignature sig = itr.next();
-            if (sig.getKeyID() == masterPublicKey.getKeyID() && sig.getSignatureType() == PGPSignature.SUBKEY_BINDING) {
+            if (sig.getKeyID() == masterPublicKey.getKeyID() &&
+                    sig.getSignatureType() == PGPSignature.SUBKEY_BINDING) {
                 //check and if ok, check primary key binding.
                 try {
                     sig.init(contentVerifierBuilderProvider, masterPublicKey);
@@ -684,34 +664,37 @@ public class PgpDecryptVerify {
                     continue;
                 }
 
-                if (validTempSubkeyBinding)
+                if (validTempSubkeyBinding) {
                     validSubkeyBinding = true;
+                }
                 if (validTempSubkeyBinding) {
                     validPrimaryKeyBinding = verifyPrimaryKeyBinding(sig.getUnhashedSubPackets(),
                             masterPublicKey, signingPublicKey);
-                    if (validPrimaryKeyBinding)
+                    if (validPrimaryKeyBinding) {
                         break;
+                    }
                     validPrimaryKeyBinding = verifyPrimaryKeyBinding(sig.getHashedSubPackets(),
                             masterPublicKey, signingPublicKey);
-                    if (validPrimaryKeyBinding)
+                    if (validPrimaryKeyBinding) {
                         break;
+                    }
                 }
             }
         }
         return (validSubkeyBinding & validPrimaryKeyBinding);
     }
 
-    private static boolean verifyPrimaryKeyBinding(PGPSignatureSubpacketVector Pkts,
-                                                   PGPPublicKey masterPublicKey, PGPPublicKey signingPublicKey) {
+    private static boolean verifyPrimaryKeyBinding(PGPSignatureSubpacketVector pkts,
+                          PGPPublicKey masterPublicKey, PGPPublicKey signingPublicKey) {
         boolean validPrimaryKeyBinding = false;
         JcaPGPContentVerifierBuilderProvider contentVerifierBuilderProvider =
                 new JcaPGPContentVerifierBuilderProvider()
                         .setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME);
         PGPSignatureList eSigList;
 
-        if (Pkts.hasSubpacket(SignatureSubpacketTags.EMBEDDED_SIGNATURE)) {
+        if (pkts.hasSubpacket(SignatureSubpacketTags.EMBEDDED_SIGNATURE)) {
             try {
-                eSigList = Pkts.getEmbeddedSignatures();
+                eSigList = pkts.getEmbeddedSignatures();
             } catch (IOException e) {
                 return false;
             } catch (PGPException e) {
@@ -723,8 +706,9 @@ public class PgpDecryptVerify {
                     try {
                         emSig.init(contentVerifierBuilderProvider, signingPublicKey);
                         validPrimaryKeyBinding = emSig.verifyCertification(masterPublicKey, signingPublicKey);
-                        if (validPrimaryKeyBinding)
+                        if (validPrimaryKeyBinding) {
                             break;
+                        }
                     } catch (PGPException e) {
                         continue;
                     } catch (SignatureException e) {
@@ -743,10 +727,9 @@ public class PgpDecryptVerify {
      * @param sig
      * @param line
      * @throws SignatureException
-     * @throws IOException
      */
     private static void processLine(PGPSignature sig, byte[] line)
-            throws SignatureException, IOException {
+            throws SignatureException {
         int length = getLengthWithoutWhiteSpace(line);
         if (length > 0) {
             sig.update(line, 0, length);
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpDecryptVerifyResult.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpDecryptVerifyResult.java
index 0477c4fdf..d4a4f6075 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpDecryptVerifyResult.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpDecryptVerifyResult.java
@@ -19,36 +19,35 @@ package org.sufficientlysecure.keychain.pgp;
 
 import android.os.Parcel;
 import android.os.Parcelable;
-
 import org.openintents.openpgp.OpenPgpSignatureResult;
 
 public class PgpDecryptVerifyResult implements Parcelable {
-    boolean symmetricPassphraseNeeded;
-    boolean keyPassphraseNeeded;
-    OpenPgpSignatureResult signatureResult;
+    boolean mSymmetricPassphraseNeeded;
+    boolean mKeyPassphraseNeeded;
+    OpenPgpSignatureResult mSignatureResult;
 
     public boolean isSymmetricPassphraseNeeded() {
-        return symmetricPassphraseNeeded;
+        return mSymmetricPassphraseNeeded;
     }
 
     public void setSymmetricPassphraseNeeded(boolean symmetricPassphraseNeeded) {
-        this.symmetricPassphraseNeeded = symmetricPassphraseNeeded;
+        this.mSymmetricPassphraseNeeded = symmetricPassphraseNeeded;
     }
 
     public boolean isKeyPassphraseNeeded() {
-        return keyPassphraseNeeded;
+        return mKeyPassphraseNeeded;
     }
 
     public void setKeyPassphraseNeeded(boolean keyPassphraseNeeded) {
-        this.keyPassphraseNeeded = keyPassphraseNeeded;
+        this.mKeyPassphraseNeeded = keyPassphraseNeeded;
     }
 
     public OpenPgpSignatureResult getSignatureResult() {
-        return signatureResult;
+        return mSignatureResult;
     }
 
     public void setSignatureResult(OpenPgpSignatureResult signatureResult) {
-        this.signatureResult = signatureResult;
+        this.mSignatureResult = signatureResult;
     }
 
     public PgpDecryptVerifyResult() {
@@ -56,9 +55,9 @@ public class PgpDecryptVerifyResult implements Parcelable {
     }
 
     public PgpDecryptVerifyResult(PgpDecryptVerifyResult b) {
-        this.symmetricPassphraseNeeded = b.symmetricPassphraseNeeded;
-        this.keyPassphraseNeeded = b.keyPassphraseNeeded;
-        this.signatureResult = b.signatureResult;
+        this.mSymmetricPassphraseNeeded = b.mSymmetricPassphraseNeeded;
+        this.mKeyPassphraseNeeded = b.mKeyPassphraseNeeded;
+        this.mSignatureResult = b.mSignatureResult;
     }
 
 
@@ -67,17 +66,17 @@ public class PgpDecryptVerifyResult implements Parcelable {
     }
 
     public void writeToParcel(Parcel dest, int flags) {
-        dest.writeByte((byte) (symmetricPassphraseNeeded ? 1 : 0));
-        dest.writeByte((byte) (keyPassphraseNeeded ? 1 : 0));
-        dest.writeParcelable(signatureResult, 0);
+        dest.writeByte((byte) (mSymmetricPassphraseNeeded ? 1 : 0));
+        dest.writeByte((byte) (mKeyPassphraseNeeded ? 1 : 0));
+        dest.writeParcelable(mSignatureResult, 0);
     }
 
     public static final Creator<PgpDecryptVerifyResult> CREATOR = new Creator<PgpDecryptVerifyResult>() {
         public PgpDecryptVerifyResult createFromParcel(final Parcel source) {
             PgpDecryptVerifyResult vr = new PgpDecryptVerifyResult();
-            vr.symmetricPassphraseNeeded = source.readByte() == 1;
-            vr.keyPassphraseNeeded = source.readByte() == 1;
-            vr.signatureResult = source.readParcelable(OpenPgpSignatureResult.class.getClassLoader());
+            vr.mSymmetricPassphraseNeeded = source.readByte() == 1;
+            vr.mKeyPassphraseNeeded = source.readByte() == 1;
+            vr.mSignatureResult = source.readParcelable(OpenPgpSignatureResult.class.getClassLoader());
             return vr;
         }
 
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpHelper.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpHelper.java
index 7ac904d89..2680d77af 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpHelper.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpHelper.java
@@ -17,22 +17,10 @@
 
 package org.sufficientlysecure.keychain.pgp;
 
-import java.io.File;
-import java.io.FileNotFoundException;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.RandomAccessFile;
-import java.security.SecureRandom;
-import java.util.Iterator;
-import java.util.regex.Pattern;
-
-import org.spongycastle.openpgp.PGPEncryptedDataList;
-import org.spongycastle.openpgp.PGPObjectFactory;
-import org.spongycastle.openpgp.PGPPublicKeyEncryptedData;
-import org.spongycastle.openpgp.PGPPublicKeyRing;
-import org.spongycastle.openpgp.PGPSecretKey;
-import org.spongycastle.openpgp.PGPSecretKeyRing;
-import org.spongycastle.openpgp.PGPUtil;
+import android.content.Context;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager.NameNotFoundException;
+import org.spongycastle.openpgp.*;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.Id;
 import org.sufficientlysecure.keychain.R;
@@ -42,21 +30,25 @@ import org.sufficientlysecure.keychain.provider.ProviderHelper;
 import org.sufficientlysecure.keychain.util.Log;
 import org.sufficientlysecure.keychain.util.ProgressDialogUpdater;
 
-import android.content.Context;
-import android.content.pm.PackageInfo;
-import android.content.pm.PackageManager.NameNotFoundException;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.RandomAccessFile;
+import java.security.SecureRandom;
+import java.util.Iterator;
+import java.util.regex.Pattern;
 
 public class PgpHelper {
 
-    public static Pattern PGP_MESSAGE = Pattern.compile(
+    public static final Pattern PGP_MESSAGE = Pattern.compile(
             ".*?(-----BEGIN PGP MESSAGE-----.*?-----END PGP MESSAGE-----).*", Pattern.DOTALL);
 
-    public static Pattern PGP_SIGNED_MESSAGE = Pattern
+    public static final Pattern PGP_SIGNED_MESSAGE = Pattern
             .compile(
                     ".*?(-----BEGIN PGP SIGNED MESSAGE-----.*?-----BEGIN PGP SIGNATURE-----.*?-----END PGP SIGNATURE-----).*",
                     Pattern.DOTALL);
 
-    public static Pattern PGP_PUBLIC_KEY = Pattern.compile(
+    public static final Pattern PGP_PUBLIC_KEY = Pattern.compile(
             ".*?(-----BEGIN PGP PUBLIC KEY BLOCK-----.*?-----END PGP PUBLIC KEY BLOCK-----).*",
             Pattern.DOTALL);
 
@@ -140,7 +132,7 @@ public class PgpHelper {
 
     /**
      * Generate a random filename
-     * 
+     *
      * @param length
      * @return
      */
@@ -170,7 +162,7 @@ public class PgpHelper {
     /**
      * Go once through stream to get length of stream. The length is later used to display progress
      * when encrypting/decrypting
-     * 
+     *
      * @param in
      * @return
      * @throws IOException
@@ -187,17 +179,16 @@ public class PgpHelper {
 
     /**
      * Deletes file securely by overwriting it with random data before deleting it.
-     * 
+     * <p/>
      * TODO: Does this really help on flash storage?
-     * 
+     *
      * @param context
      * @param progress
      * @param file
-     * @throws FileNotFoundException
      * @throws IOException
      */
     public static void deleteFileSecurely(Context context, ProgressDialogUpdater progress, File file)
-            throws FileNotFoundException, IOException {
+            throws IOException {
         long length = file.length();
         SecureRandom random = new SecureRandom();
         RandomAccessFile raf = new RandomAccessFile(file, "rws");
@@ -207,8 +198,9 @@ public class PgpHelper {
         int pos = 0;
         String msg = context.getString(R.string.progress_deleting_securely, file.getName());
         while (pos < length) {
-            if (progress != null)
+            if (progress != null) {
                 progress.setProgress(msg, (int) (100 * pos / length), 100);
+            }
             random.nextBytes(data);
             raf.write(data);
             pos += data.length;
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpImportExport.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpImportExport.java
index 2495a212c..0e0fdec83 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpImportExport.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpImportExport.java
@@ -17,24 +17,11 @@
 
 package org.sufficientlysecure.keychain.pgp;
 
-import java.io.BufferedInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.FileNotFoundException;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.util.ArrayList;
-import java.util.List;
-
+import android.content.Context;
+import android.os.Bundle;
+import android.os.Environment;
 import org.spongycastle.bcpg.ArmoredOutputStream;
-import org.spongycastle.openpgp.PGPException;
-import org.spongycastle.openpgp.PGPKeyRing;
-import org.spongycastle.openpgp.PGPObjectFactory;
-import org.spongycastle.openpgp.PGPPublicKey;
-import org.spongycastle.openpgp.PGPPublicKeyRing;
-import org.spongycastle.openpgp.PGPSecretKey;
-import org.spongycastle.openpgp.PGPSecretKeyRing;
-import org.spongycastle.openpgp.PGPUtil;
+import org.spongycastle.openpgp.*;
 import org.spongycastle.openpgp.operator.jcajce.JcaKeyFingerprintCalculator;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.Id;
@@ -43,28 +30,37 @@ import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
 import org.sufficientlysecure.keychain.provider.ProviderHelper;
 import org.sufficientlysecure.keychain.service.KeychainIntentService;
 import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListEntry;
-import org.sufficientlysecure.keychain.util.HkpKeyServer;
-import org.sufficientlysecure.keychain.util.InputData;
-import org.sufficientlysecure.keychain.util.IterableIterator;
+import org.sufficientlysecure.keychain.util.*;
 import org.sufficientlysecure.keychain.util.KeyServer.AddKeyException;
-import org.sufficientlysecure.keychain.util.Log;
-import org.sufficientlysecure.keychain.util.PositionAwareInputStream;
-import org.sufficientlysecure.keychain.util.ProgressDialogUpdater;
 
-import android.content.Context;
-import android.os.Bundle;
-import android.os.Environment;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.security.Provider;
+import java.util.ArrayList;
+import java.util.List;
 
 public class PgpImportExport {
+
     private Context mContext;
     private ProgressDialogUpdater mProgress;
 
+    private KeychainServiceListener mKeychainServiceListener;
+
     public PgpImportExport(Context context, ProgressDialogUpdater progress) {
         super();
         this.mContext = context;
         this.mProgress = progress;
     }
 
+    public PgpImportExport(Context context,
+                           ProgressDialogUpdater progress, KeychainServiceListener keychainListener) {
+        super();
+        this.mContext = context;
+        this.mProgress = progress;
+        this.mKeychainServiceListener = keychainListener;
+    }
+
     public void updateProgress(int message, int current, int total) {
         if (mProgress != null) {
             mProgress.setProgress(message, current, total);
@@ -85,8 +81,9 @@ public class PgpImportExport {
 
     public boolean uploadKeyRingToServer(HkpKeyServer server, PGPPublicKeyRing keyring) {
         ByteArrayOutputStream bos = new ByteArrayOutputStream();
-        ArmoredOutputStream aos = new ArmoredOutputStream(bos);
+        ArmoredOutputStream aos = null;
         try {
+            aos = new ArmoredOutputStream(bos);
             aos.write(keyring.getEncoded());
             aos.close();
 
@@ -101,7 +98,8 @@ public class PgpImportExport {
             return false;
         } finally {
             try {
-                bos.close();
+                if (aos != null) { aos.close(); }
+                if (bos != null) { bos.close(); }
             } catch (IOException e) {
             }
         }
@@ -161,59 +159,68 @@ public class PgpImportExport {
         return returnData;
     }
 
-    public Bundle exportKeyRings(ArrayList<Long> keyRingMasterKeyIds, int keyType,
-                                 OutputStream outStream) throws PgpGeneralException, FileNotFoundException,
+    public Bundle exportKeyRings(ArrayList<Long> publicKeyRingMasterIds, ArrayList<Long> secretKeyRingMasterIds,
+                                 OutputStream outStream) throws PgpGeneralException,
             PGPException, IOException {
         Bundle returnData = new Bundle();
 
+        int masterKeyIdsSize = publicKeyRingMasterIds.size() + secretKeyRingMasterIds.size();
+        int progress = 0;
+
         updateProgress(
                 mContext.getResources().getQuantityString(R.plurals.progress_exporting_key,
-                        keyRingMasterKeyIds.size()), 0, 100);
+                        masterKeyIdsSize), 0, 100);
 
         if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
             throw new PgpGeneralException(
                     mContext.getString(R.string.error_external_storage_not_ready));
         }
+        // For each public masterKey id
+        for (long pubKeyMasterId : publicKeyRingMasterIds) {
+            progress++;
+            // Create an output stream
+            ArmoredOutputStream arOutStream = new ArmoredOutputStream(outStream);
+            arOutStream.setHeader("Version", PgpHelper.getFullVersion(mContext));
+
+            updateProgress(progress * 100 / masterKeyIdsSize, 100);
+            PGPPublicKeyRing publicKeyRing =
+                    ProviderHelper.getPGPPublicKeyRingByMasterKeyId(mContext, pubKeyMasterId);
+
+            if (publicKeyRing != null) {
+                publicKeyRing.encode(arOutStream);
+            }
 
-        if (keyType == Id.type.secret_key) {
-            ArmoredOutputStream outSec = new ArmoredOutputStream(outStream);
-            outSec.setHeader("Version", PgpHelper.getFullVersion(mContext));
-
-            for (int i = 0; i < keyRingMasterKeyIds.size(); ++i) {
-                updateProgress(i * 100 / keyRingMasterKeyIds.size() / 2, 100);
+            if (mKeychainServiceListener.hasServiceStopped()) {
+                arOutStream.close();
+                return null;
+            }
 
-                PGPSecretKeyRing secretKeyRing = ProviderHelper.getPGPSecretKeyRingByMasterKeyId(
-                        mContext, keyRingMasterKeyIds.get(i));
+            arOutStream.close();
+        }
 
-                if (secretKeyRing != null) {
-                    secretKeyRing.encode(outSec);
-                }
-            }
-            outSec.close();
-        } else {
-            // export public keyrings...
-            ArmoredOutputStream outPub = new ArmoredOutputStream(outStream);
-            outPub.setHeader("Version", PgpHelper.getFullVersion(mContext));
-
-            for (int i = 0; i < keyRingMasterKeyIds.size(); ++i) {
-                // double the needed time if exporting both public and secret parts
-                if (keyType == Id.type.secret_key) {
-                    updateProgress(i * 100 / keyRingMasterKeyIds.size() / 2, 100);
-                } else {
-                    updateProgress(i * 100 / keyRingMasterKeyIds.size(), 100);
-                }
+        // For each secret masterKey id
+        for (long secretKeyMasterId : secretKeyRingMasterIds) {
+            progress++;
+            // Create an output stream
+            ArmoredOutputStream arOutStream = new ArmoredOutputStream(outStream);
+            arOutStream.setHeader("Version", PgpHelper.getFullVersion(mContext));
 
-                PGPPublicKeyRing publicKeyRing = ProviderHelper.getPGPPublicKeyRingByMasterKeyId(
-                        mContext, keyRingMasterKeyIds.get(i));
+            updateProgress(progress * 100 / masterKeyIdsSize, 100);
+            PGPSecretKeyRing secretKeyRing =
+                    ProviderHelper.getPGPSecretKeyRingByMasterKeyId(mContext, secretKeyMasterId);
 
-                if (publicKeyRing != null) {
-                    publicKeyRing.encode(outPub);
-                }
+            if (secretKeyRing != null) {
+                secretKeyRing.encode(arOutStream);
+            }
+            if (mKeychainServiceListener.hasServiceStopped()) {
+                arOutStream.close();
+                return null;
             }
-            outPub.close();
+
+            arOutStream.close();
         }
 
-        returnData.putInt(KeychainIntentService.RESULT_EXPORT, keyRingMasterKeyIds.size());
+        returnData.putInt(KeychainIntentService.RESULT_EXPORT, masterKeyIdsSize);
 
         updateProgress(R.string.progress_done, 100, 100);
 
@@ -234,7 +241,7 @@ public class PgpImportExport {
                 for (PGPSecretKey testSecretKey : new IterableIterator<PGPSecretKey>(
                         secretKeyRing.getSecretKeys())) {
                     if (!testSecretKey.isMasterKey()) {
-                        if (PgpKeyHelper.isSecretKeyPrivateEmpty(testSecretKey)) {
+                        if (testSecretKey.isPrivateKeyEmpty()) {
                             // this is bad, something is very wrong...
                             save = false;
                             status = Id.return_value.bad;
@@ -255,8 +262,9 @@ public class PgpImportExport {
                         }
                         newPubRing = PGPPublicKeyRing.insertPublicKey(newPubRing, key);
                     }
-                    if (newPubRing != null)
+                    if (newPubRing != null) {
                         ProviderHelper.saveKeyRing(mContext, newPubRing);
+                    }
                     // TODO: remove status returns, use exceptions!
                     status = Id.return_value.ok;
                 }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpKeyHelper.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpKeyHelper.java
index c1c6f3088..b4bf0747f 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpKeyHelper.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpKeyHelper.java
@@ -17,28 +17,27 @@
 
 package org.sufficientlysecure.keychain.pgp;
 
-import java.util.Calendar;
-import java.util.Date;
-import java.util.GregorianCalendar;
-import java.util.Locale;
-import java.util.Vector;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
+import android.content.Context;
+import android.graphics.Color;
+import android.text.Spannable;
+import android.text.SpannableStringBuilder;
+import android.text.style.ForegroundColorSpan;
 
 import org.spongycastle.bcpg.sig.KeyFlags;
-import org.spongycastle.openpgp.PGPPublicKey;
-import org.spongycastle.openpgp.PGPPublicKeyRing;
-import org.spongycastle.openpgp.PGPSecretKey;
-import org.spongycastle.openpgp.PGPSecretKeyRing;
-import org.spongycastle.openpgp.PGPSignature;
-import org.spongycastle.openpgp.PGPSignatureSubpacketVector;
+import org.spongycastle.openpgp.*;
+import org.spongycastle.util.encoders.Hex;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.provider.ProviderHelper;
 import org.sufficientlysecure.keychain.util.IterableIterator;
 import org.sufficientlysecure.keychain.util.Log;
 
-import android.content.Context;
+import java.security.DigestException;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.*;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 
 public class PgpKeyHelper {
 
@@ -466,55 +465,30 @@ public class PgpKeyHelper {
         String algorithmStr;
 
         switch (algorithm) {
-        case PGPPublicKey.RSA_ENCRYPT:
-        case PGPPublicKey.RSA_GENERAL:
-        case PGPPublicKey.RSA_SIGN: {
-            algorithmStr = "RSA";
-            break;
-        }
-
-        case PGPPublicKey.DSA: {
-            algorithmStr = "DSA";
-            break;
-        }
-
-        case PGPPublicKey.ELGAMAL_ENCRYPT:
-        case PGPPublicKey.ELGAMAL_GENERAL: {
-            algorithmStr = "ElGamal";
-            break;
-        }
+            case PGPPublicKey.RSA_ENCRYPT:
+            case PGPPublicKey.RSA_GENERAL:
+            case PGPPublicKey.RSA_SIGN: {
+                algorithmStr = "RSA";
+                break;
+            }
 
-        default: {
-            algorithmStr = "Unknown";
-            break;
-        }
-        }
-        return algorithmStr + ", " + keySize + " bit";
-    }
+            case PGPPublicKey.DSA: {
+                algorithmStr = "DSA";
+                break;
+            }
 
-    /**
-     * Converts fingerprint to hex with whitespaces after 4 characters
-     * 
-     * @param fp
-     * @return
-     */
-    public static String convertFingerprintToHex(byte[] fp, boolean chunked) {
-        String fingerPrint = "";
-        for (int i = 0; i < fp.length; ++i) {
-            if (chunked && i != 0 && i % 10 == 0) {
-                fingerPrint += "  ";
-            } else if (chunked && i != 0 && i % 2 == 0) {
-                fingerPrint += " ";
+            case PGPPublicKey.ELGAMAL_ENCRYPT:
+            case PGPPublicKey.ELGAMAL_GENERAL: {
+                algorithmStr = "ElGamal";
+                break;
             }
-            String chunk = Integer.toHexString((fp[i] + 256) % 256).toUpperCase(Locale.US);
-            while (chunk.length() < 2) {
-                chunk = "0" + chunk;
+
+            default: {
+                algorithmStr = "Unknown";
+                break;
             }
-            fingerPrint += chunk;
         }
-
-        return fingerPrint;
-
+        return algorithmStr + ", " + keySize + " bit";
     }
 
     public static String getFingerPrint(Context context, long keyId) {
@@ -529,55 +503,150 @@ public class PgpKeyHelper {
             key = secretKey.getPublicKey();
         }
 
-        return convertFingerprintToHex(key.getFingerprint(), true);
-    }
-
-    public static boolean isSecretKeyPrivateEmpty(PGPSecretKey secretKey) {
-        return secretKey.isPrivateKeyEmpty();
+        return convertFingerprintToHex(key.getFingerprint());
     }
 
-//    public static boolean isSecretKeyPrivateEmpty(Context context, long keyId) {
-//        PGPSecretKey secretKey = ProviderHelper.getPGPSecretKeyByKeyId(context, keyId);
-//        if (secretKey == null) {
-//            Log.e(Constants.TAG, "Key could not be found!");
-//            return false; // could be a public key, assume it is not empty
-//        }
-//        return isSecretKeyPrivateEmpty(secretKey);
-//    }
+    /**
+     * Converts fingerprint to hex (optional: with whitespaces after 4 characters)
+     * <p/>
+     * Fingerprint is shown using lowercase characters. Studies have shown that humans can
+     * better differentiate between numbers and letters when letters are lowercase.
+     *
+     * @param fingerprint
+     * @param split       split into 4 character chunks
+     * @return
+     */
+    public static String convertFingerprintToHex(byte[] fingerprint) {
+        String hexString = Hex.toHexString(fingerprint);
 
-    public static String convertKeyIdToHex(long keyId) {
-        String fingerPrint = Long.toHexString(keyId & 0xffffffffL).toUpperCase(Locale.US);
-        while (fingerPrint.length() < 8) {
-            fingerPrint = "0" + fingerPrint;
-        }
-        return fingerPrint;
+        return hexString;
     }
 
     /**
-     * TODO: documentation
-     * 
+     * Convert key id from long to 64 bit hex string
+     * <p/>
+     * V4: "The Key ID is the low-order 64 bits of the fingerprint"
+     * <p/>
+     * see http://tools.ietf.org/html/rfc4880#section-12.2
+     *
      * @param keyId
      * @return
      */
-    public static String convertKeyToHex(long keyId) {
-        return convertKeyIdToHex(keyId >> 32) + convertKeyIdToHex(keyId);
+    public static String convertKeyIdToHex(long keyId) {
+        long upper = keyId >> 32;
+        if (upper == 0) {
+            // this is a short key id
+            return convertKeyIdToHexShort(keyId);
+        }
+        return "0x" + convertKeyIdToHex32bit(keyId >> 32) + convertKeyIdToHex32bit(keyId);
     }
 
-    public static long convertHexToKeyId(String data) {
-        int len = data.length();
-        String s2 = data.substring(len - 8);
-        String s1 = data.substring(0, len - 8);
-        return (Long.parseLong(s1, 16) << 32) | Long.parseLong(s2, 16);
+    public static String convertKeyIdToHexShort(long keyId) {
+        return "0x" + convertKeyIdToHex32bit(keyId);
+    }
+
+    private static String convertKeyIdToHex32bit(long keyId) {
+        String hexString = Long.toHexString(keyId & 0xffffffffL).toLowerCase(Locale.US);
+        while (hexString.length() < 8) {
+            hexString = "0" + hexString;
+        }
+        return hexString;
+    }
+
+
+    public static SpannableStringBuilder colorizeFingerprint(String fingerprint) {
+        // split by 4 characters
+        fingerprint = fingerprint.replaceAll("(.{4})(?!$)", "$1 ");
+
+        // add line breaks to have a consistent "image" that can be recognized
+        char[] chars = fingerprint.toCharArray();
+        chars[24] = '\n';
+        fingerprint = String.valueOf(chars);
+
+        SpannableStringBuilder sb = new SpannableStringBuilder(fingerprint);
+        try {
+            // for each 4 characters of the fingerprint + 1 space
+            for (int i = 0; i < fingerprint.length(); i += 5) {
+                int spanEnd = Math.min(i + 4, fingerprint.length());
+                String fourChars = fingerprint.substring(i, spanEnd);
+
+                int raw = Integer.parseInt(fourChars, 16);
+                byte[] bytes = {(byte) ((raw >> 8) & 0xff - 128), (byte) (raw & 0xff - 128)};
+                int[] color = getRgbForData(bytes);
+                int r = color[0];
+                int g = color[1];
+                int b = color[2];
+
+                // we cannot change black by multiplication, so adjust it to an almost-black grey,
+                // which will then be brightened to the minimal brightness level
+                if (r == 0 && g == 0 && b == 0) {
+                    r = 1;
+                    g = 1;
+                    b = 1;
+                }
+
+                // Convert rgb to brightness
+                double brightness = 0.2126 * r + 0.7152 * g + 0.0722 * b;
+
+                // If a color is too dark to be seen on black,
+                // then brighten it up to a minimal brightness.
+                if (brightness < 80) {
+                    double factor = 80.0 / brightness;
+                    r = Math.min(255, (int) (r * factor));
+                    g = Math.min(255, (int) (g * factor));
+                    b = Math.min(255, (int) (b * factor));
+
+                    // If it is too light, then darken it to a respective maximal brightness.
+                } else if (brightness > 180) {
+                    double factor = 180.0 / brightness;
+                    r = (int) (r * factor);
+                    g = (int) (g * factor);
+                    b = (int) (b * factor);
+                }
+
+                // Create a foreground color with the 3 digest integers as RGB
+                // and then converting that int to hex to use as a color
+                sb.setSpan(new ForegroundColorSpan(Color.rgb(r, g, b)),
+                        i, spanEnd, Spannable.SPAN_INCLUSIVE_INCLUSIVE);
+            }
+        } catch (Exception e) {
+            Log.e(Constants.TAG, "Colorization failed", e);
+            // if anything goes wrong, then just display the fingerprint without colour,
+            // instead of partially correct colour or wrong colours
+            return new SpannableStringBuilder(fingerprint);
+        }
+
+        return sb;
+    }
+
+    /**
+     * Converts the given bytes to a unique RGB color using SHA1 algorithm
+     *
+     * @param bytes
+     * @return an integer array containing 3 numeric color representations (Red, Green, Black)
+     * @throws java.security.NoSuchAlgorithmException
+     * @throws java.security.DigestException
+     */
+    private static int[] getRgbForData(byte[] bytes) throws NoSuchAlgorithmException, DigestException {
+        MessageDigest md = MessageDigest.getInstance("SHA1");
+
+        md.update(bytes);
+        byte[] digest = md.digest();
+
+        int[] result = {((int) digest[0] + 256) % 256,
+                ((int) digest[1] + 256) % 256,
+                ((int) digest[2] + 256) % 256};
+        return result;
     }
 
     /**
      * Splits userId string into naming part, email part, and comment part
-     * 
+     *
      * @param userId
      * @return array with naming (0), email (1), comment (2)
      */
     public static String[] splitUserId(String userId) {
-        String[] result = new String[] { null, null, null };
+        String[] result = new String[]{null, null, null};
 
         if (userId == null || userId.equals("")) {
             return result;
@@ -598,7 +667,6 @@ public class PgpKeyHelper {
             result[0] = matcher.group(1);
             result[1] = matcher.group(3);
             result[2] = matcher.group(2);
-            return result;
         }
 
         return result;
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpKeyOperation.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpKeyOperation.java
index b7f84ccdc..05ca99578 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpKeyOperation.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpKeyOperation.java
@@ -30,35 +30,19 @@ import java.util.Date;
 import java.util.GregorianCalendar;
 import java.util.Iterator;
 import java.util.TimeZone;
-
+import android.content.Context;
 import org.spongycastle.bcpg.CompressionAlgorithmTags;
 import org.spongycastle.bcpg.HashAlgorithmTags;
 import org.spongycastle.bcpg.SymmetricKeyAlgorithmTags;
 import org.spongycastle.bcpg.sig.KeyFlags;
 import org.spongycastle.jce.spec.ElGamalParameterSpec;
-import org.spongycastle.openpgp.PGPEncryptedData;
-import org.spongycastle.openpgp.PGPException;
-import org.spongycastle.openpgp.PGPKeyPair;
-import org.spongycastle.openpgp.PGPKeyRingGenerator;
-import org.spongycastle.openpgp.PGPPrivateKey;
-import org.spongycastle.openpgp.PGPPublicKey;
-import org.spongycastle.openpgp.PGPPublicKeyRing;
-import org.spongycastle.openpgp.PGPSecretKey;
-import org.spongycastle.openpgp.PGPSecretKeyRing;
-import org.spongycastle.openpgp.PGPSignature;
-import org.spongycastle.openpgp.PGPSignatureGenerator;
-import org.spongycastle.openpgp.PGPSignatureSubpacketGenerator;
-import org.spongycastle.openpgp.PGPSignatureSubpacketVector;
+import org.spongycastle.openpgp.*;
 import org.spongycastle.openpgp.PGPUtil;
 import org.spongycastle.openpgp.operator.PBESecretKeyDecryptor;
 import org.spongycastle.openpgp.operator.PBESecretKeyEncryptor;
 import org.spongycastle.openpgp.operator.PGPContentSignerBuilder;
 import org.spongycastle.openpgp.operator.PGPDigestCalculator;
-import org.spongycastle.openpgp.operator.jcajce.JcaPGPContentSignerBuilder;
-import org.spongycastle.openpgp.operator.jcajce.JcaPGPDigestCalculatorProviderBuilder;
-import org.spongycastle.openpgp.operator.jcajce.JcaPGPKeyPair;
-import org.spongycastle.openpgp.operator.jcajce.JcePBESecretKeyDecryptorBuilder;
-import org.spongycastle.openpgp.operator.jcajce.JcePBESecretKeyEncryptorBuilder;
+import org.spongycastle.openpgp.operator.jcajce.*;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.Id;
 import org.sufficientlysecure.keychain.R;
@@ -70,20 +54,34 @@ import org.sufficientlysecure.keychain.util.ProgressDialogUpdater;
 
 import android.content.Context;
 import android.util.Pair;
+import org.sufficientlysecure.keychain.util.IterableIterator;
+import org.sufficientlysecure.keychain.util.Log;
+import org.sufficientlysecure.keychain.util.Primes;
+import org.sufficientlysecure.keychain.util.ProgressDialogUpdater;
+
+import java.io.IOException;
+import java.math.BigInteger;
+import java.security.*;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.GregorianCalendar;
+import java.util.Iterator;
+import java.util.List;
+import java.util.TimeZone;
 
 public class PgpKeyOperation {
     private final Context mContext;
     private final ProgressDialogUpdater mProgress;
 
-    private static final int[] PREFERRED_SYMMETRIC_ALGORITHMS = new int[] {
+    private static final int[] PREFERRED_SYMMETRIC_ALGORITHMS = new int[]{
             SymmetricKeyAlgorithmTags.AES_256, SymmetricKeyAlgorithmTags.AES_192,
             SymmetricKeyAlgorithmTags.AES_128, SymmetricKeyAlgorithmTags.CAST5,
-            SymmetricKeyAlgorithmTags.TRIPLE_DES };
-    private static final int[] PREFERRED_HASH_ALGORITHMS = new int[] { HashAlgorithmTags.SHA1,
-            HashAlgorithmTags.SHA256, HashAlgorithmTags.RIPEMD160 };
-    private static final int[] PREFERRED_COMPRESSION_ALGORITHMS = new int[] {
+            SymmetricKeyAlgorithmTags.TRIPLE_DES};
+    private static final int[] PREFERRED_HASH_ALGORITHMS = new int[]{HashAlgorithmTags.SHA1,
+            HashAlgorithmTags.SHA256, HashAlgorithmTags.RIPEMD160};
+    private static final int[] PREFERRED_COMPRESSION_ALGORITHMS = new int[]{
             CompressionAlgorithmTags.ZLIB, CompressionAlgorithmTags.BZIP2,
-            CompressionAlgorithmTags.ZIP };
+            CompressionAlgorithmTags.ZIP};
 
     public PgpKeyOperation(Context context, ProgressDialogUpdater progress) {
         super();
@@ -104,8 +102,9 @@ public class PgpKeyOperation {
     }
 
     public PGPSecretKey createKey(int algorithmChoice, int keySize, String passphrase,
-       boolean isMasterKey) throws NoSuchAlgorithmException, PGPException, NoSuchProviderException,
-       PgpGeneralException, InvalidAlgorithmParameterException {
+                                  boolean isMasterKey)
+            throws NoSuchAlgorithmException, PGPException, NoSuchProviderException,
+                   PgpGeneralException, InvalidAlgorithmParameterException {
 
         if (keySize < 512) {
             throw new PgpGeneralException(mContext.getString(R.string.error_key_size_minimum512bit));
@@ -119,41 +118,41 @@ public class PgpKeyOperation {
         KeyPairGenerator keyGen;
 
         switch (algorithmChoice) {
-        case Id.choice.algorithm.dsa: {
-            keyGen = KeyPairGenerator.getInstance("DSA", Constants.BOUNCY_CASTLE_PROVIDER_NAME);
-            keyGen.initialize(keySize, new SecureRandom());
-            algorithm = PGPPublicKey.DSA;
-            break;
-        }
-
-        case Id.choice.algorithm.elgamal: {
-            if (isMasterKey) {
-                throw new PgpGeneralException(
-                        mContext.getString(R.string.error_master_key_must_not_be_el_gamal));
+            case Id.choice.algorithm.dsa: {
+                keyGen = KeyPairGenerator.getInstance("DSA", Constants.BOUNCY_CASTLE_PROVIDER_NAME);
+                keyGen.initialize(keySize, new SecureRandom());
+                algorithm = PGPPublicKey.DSA;
+                break;
             }
-            keyGen = KeyPairGenerator.getInstance("ElGamal", Constants.BOUNCY_CASTLE_PROVIDER_NAME);
-            BigInteger p = Primes.getBestPrime(keySize);
-            BigInteger g = new BigInteger("2");
 
-            ElGamalParameterSpec elParams = new ElGamalParameterSpec(p, g);
+            case Id.choice.algorithm.elgamal: {
+                if (isMasterKey) {
+                    throw new PgpGeneralException(
+                            mContext.getString(R.string.error_master_key_must_not_be_el_gamal));
+                }
+                keyGen = KeyPairGenerator.getInstance("ElGamal", Constants.BOUNCY_CASTLE_PROVIDER_NAME);
+                BigInteger p = Primes.getBestPrime(keySize);
+                BigInteger g = new BigInteger("2");
 
-            keyGen.initialize(elParams);
-            algorithm = PGPPublicKey.ELGAMAL_ENCRYPT;
-            break;
-        }
+                ElGamalParameterSpec elParams = new ElGamalParameterSpec(p, g);
 
-        case Id.choice.algorithm.rsa: {
-            keyGen = KeyPairGenerator.getInstance("RSA", Constants.BOUNCY_CASTLE_PROVIDER_NAME);
-            keyGen.initialize(keySize, new SecureRandom());
+                keyGen.initialize(elParams);
+                algorithm = PGPPublicKey.ELGAMAL_ENCRYPT;
+                break;
+            }
 
-            algorithm = PGPPublicKey.RSA_GENERAL;
-            break;
-        }
+            case Id.choice.algorithm.rsa: {
+                keyGen = KeyPairGenerator.getInstance("RSA", Constants.BOUNCY_CASTLE_PROVIDER_NAME);
+                keyGen.initialize(keySize, new SecureRandom());
 
-        default: {
-            throw new PgpGeneralException(
-                    mContext.getString(R.string.error_unknown_algorithm_choice));
-        }
+                algorithm = PGPPublicKey.RSA_GENERAL;
+                break;
+            }
+
+            default: {
+                throw new PgpGeneralException(
+                        mContext.getString(R.string.error_unknown_algorithm_choice));
+            }
         }
 
         // build new key pair
@@ -170,11 +169,10 @@ public class PgpKeyOperation {
 
         return  new PGPSecretKey(keyPair.getPrivateKey(), keyPair.getPublicKey(),
             sha1Calc, isMasterKey, keyEncryptor);
-
     }
 
     public void changeSecretKeyPassphrase(PGPSecretKeyRing keyRing, String oldPassPhrase,
-            String newPassPhrase) throws IOException, PGPException {
+            							  String newPassPhrase) throws IOException, PGPException {
 
         updateProgress(R.string.progress_building_key, 0, 100);
         if (oldPassPhrase == null) {
@@ -221,15 +219,15 @@ public class PgpKeyOperation {
         updateProgress(R.string.progress_certifying_master_key, 20, 100);
         int user_id_index = 0;
         for (String userId : userIds) {
-                PGPContentSignerBuilder signerBuilder = new JcaPGPContentSignerBuilder(
-                        masterPublicKey.getAlgorithm(), HashAlgorithmTags.SHA1)
-                        .setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME);
-                PGPSignatureGenerator sGen = new PGPSignatureGenerator(signerBuilder);
+            PGPContentSignerBuilder signerBuilder = new JcaPGPContentSignerBuilder(
+                    masterPublicKey.getAlgorithm(), HashAlgorithmTags.SHA1)
+                    .setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME);
+            PGPSignatureGenerator sGen = new PGPSignatureGenerator(signerBuilder);
 
-                sGen.init(PGPSignature.POSITIVE_CERTIFICATION, masterPrivateKey);
+            sGen.init(PGPSignature.POSITIVE_CERTIFICATION, masterPrivateKey);
 
-                PGPSignature certification = sGen.generateCertification(userId, masterPublicKey);
-                masterPublicKey = PGPPublicKey.addCertification(masterPublicKey, userId, certification);
+            PGPSignature certification = sGen.generateCertification(userId, masterPublicKey);
+            masterPublicKey = PGPPublicKey.addCertification(masterPublicKey, userId, certification);
             user_id_index++;
         }
 
@@ -280,7 +278,7 @@ public class PgpKeyOperation {
         updateProgress(R.string.progress_adding_sub_keys, 40, 100);
 
         for (int i = 1; i < keys.size(); ++i) {
-            updateProgress(40 + 50 * (i - 1) / (keys.size() - 1), 100);
+            updateProgress(40 + 40 * (i - 1) / (keys.size() - 1), 100);
 
             PGPSecretKey subKey = keys.get(i);
             PGPPublicKey subPublicKey = subKey.getPublicKey();
@@ -345,7 +343,7 @@ public class PgpKeyOperation {
         updateProgress(R.string.progress_done, 100, 100);
     }
 
-    public void buildSecretKey(SaveKeyringParcel saveParcel) throws PgpGeneralException,
+    public void buildSecretKey (SaveKeyringParcel saveParcel)throws PgpGeneralException,
             PGPException, SignatureException, IOException {
 
         updateProgress(R.string.progress_building_key, 0, 100);
@@ -387,7 +385,7 @@ public class PgpKeyOperation {
         Todo
             identify more things which need to be preserved - e.g. trust levels?
                     user attributes
-         */
+        */
 
         if (saveParcel.deletedKeys != null) {
             for (PGPSecretKey dKey : saveParcel.deletedKeys) {
@@ -546,7 +544,7 @@ public class PgpKeyOperation {
                 unhashedPacketsGen.generate(), certificationSignerBuilder, keyEncryptor);
 
         for (int i = 1; i < saveParcel.keys.size(); ++i) {
-            updateProgress(40 + 50 * i/ saveParcel.keys.size(), 100);
+            updateProgress(40 + 50 * i / saveParcel.keys.size(), 100);
             if (saveParcel.moddedKeys[i]) {
                 PGPSecretKey subKey = saveParcel.keys.get(i);
                 PGPPublicKey subPublicKey = subKey.getPublicKey();
@@ -558,8 +556,8 @@ public class PgpKeyOperation {
                                     "".toCharArray());
                 } else {
                     keyDecryptor2 = new JcePBESecretKeyDecryptorBuilder()
-                        .setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME).build(
-                                saveParcel.oldPassPhrase.toCharArray());
+                            .setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME).build(
+                                    saveParcel.oldPassPhrase.toCharArray());
                 }
                 PGPPrivateKey subPrivateKey = subKey.extractPrivateKey(keyDecryptor2);
                 PGPKeyPair subKeyPair = new PGPKeyPair(subPublicKey, subPrivateKey);
@@ -642,50 +640,80 @@ public class PgpKeyOperation {
         mKR = PGPSecretKeyRing.copyWithNewPassword(mKR, keyDecryptor, keyEncryptorNew);
         updateProgress(R.string.progress_saving_key_ring, 90, 100);
 
+        /* additional handy debug info
+
+        Log.d(Constants.TAG, " ------- in private key -------");
+
+        for(String uid : new IterableIterator<String>(secretKeyRing.getPublicKey().getUserIDs())) {
+            for(PGPSignature sig : new IterableIterator<PGPSignature>(secretKeyRing.getPublicKey().getSignaturesForID(uid))) {
+                Log.d(Constants.TAG, "sig: " + PgpKeyHelper.convertKeyIdToHex(sig.getKeyID()) + " for " + uid);
+             }
+
+        }
+
+        Log.d(Constants.TAG, " ------- in public key -------");
+
+        for(String uid : new IterableIterator<String>(publicKeyRing.getPublicKey().getUserIDs())) {
+            for(PGPSignature sig : new IterableIterator<PGPSignature>(publicKeyRing.getPublicKey().getSignaturesForID(uid))) {
+                Log.d(Constants.TAG, "sig: " + PgpKeyHelper.convertKeyIdToHex(sig.getKeyID()) + " for " + uid);
+            }
+        }
+
+        */
+
+
         ProviderHelper.saveKeyRing(mContext, mKR);
         ProviderHelper.saveKeyRing(mContext, pKR);
 
         updateProgress(R.string.progress_done, 100, 100);
     }
 
-    public PGPPublicKeyRing certifyKey(long masterKeyId, long pubKeyId, String passphrase)
-            throws PgpGeneralException, PGPException, SignatureException {
+    public PGPPublicKeyRing certifyKey(long masterKeyId, long pubKeyId, List<String> userIds, String passphrase)
+            throws PgpGeneralException, NoSuchAlgorithmException, NoSuchProviderException,
+            PGPException, SignatureException {
         if (passphrase == null) {
             throw new PgpGeneralException("Unable to obtain passphrase");
         } else {
-            PGPPublicKeyRing pubring = ProviderHelper
-                    .getPGPPublicKeyRingByKeyId(mContext, pubKeyId);
 
-            PGPSecretKey certificationKey = PgpKeyHelper.getCertificationKey(mContext, masterKeyId);
-            if (certificationKey == null) {
-                throw new PgpGeneralException(mContext.getString(R.string.error_signature_failed));
-            }
+            // create a signatureGenerator from the supplied masterKeyId and passphrase
+            PGPSignatureGenerator signatureGenerator; {
 
-            PBESecretKeyDecryptor keyDecryptor = new JcePBESecretKeyDecryptorBuilder().setProvider(
-                    Constants.BOUNCY_CASTLE_PROVIDER_NAME).build(passphrase.toCharArray());
-            PGPPrivateKey signaturePrivateKey = certificationKey.extractPrivateKey(keyDecryptor);
-            if (signaturePrivateKey == null) {
-                throw new PgpGeneralException(
-                        mContext.getString(R.string.error_could_not_extract_private_key));
-            }
-
-            // TODO: SHA256 fixed?
-            JcaPGPContentSignerBuilder contentSignerBuilder = new JcaPGPContentSignerBuilder(
-                    certificationKey.getPublicKey().getAlgorithm(), PGPUtil.SHA256)
-                    .setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME);
+                PGPSecretKey certificationKey = PgpKeyHelper.getCertificationKey(mContext, masterKeyId);
+                if (certificationKey == null) {
+                    throw new PgpGeneralException(mContext.getString(R.string.error_signature_failed));
+                }
 
-            PGPSignatureGenerator signatureGenerator = new PGPSignatureGenerator(
-                    contentSignerBuilder);
+                PBESecretKeyDecryptor keyDecryptor = new JcePBESecretKeyDecryptorBuilder().setProvider(
+                        Constants.BOUNCY_CASTLE_PROVIDER_NAME).build(passphrase.toCharArray());
+                PGPPrivateKey signaturePrivateKey = certificationKey.extractPrivateKey(keyDecryptor);
+                if (signaturePrivateKey == null) {
+                    throw new PgpGeneralException(
+                            mContext.getString(R.string.error_could_not_extract_private_key));
+                }
 
-            signatureGenerator.init(PGPSignature.DIRECT_KEY, signaturePrivateKey);
+                // TODO: SHA256 fixed?
+                JcaPGPContentSignerBuilder contentSignerBuilder = new JcaPGPContentSignerBuilder(
+                        certificationKey.getPublicKey().getAlgorithm(), PGPUtil.SHA256)
+                        .setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME);
 
-            PGPSignatureSubpacketGenerator spGen = new PGPSignatureSubpacketGenerator();
+                signatureGenerator = new PGPSignatureGenerator(contentSignerBuilder);
+                signatureGenerator.init(PGPSignature.DEFAULT_CERTIFICATION, signaturePrivateKey);
+            }
 
-            PGPSignatureSubpacketVector packetVector = spGen.generate();
-            signatureGenerator.setHashedSubpackets(packetVector);
+            { // supply signatureGenerator with a SubpacketVector
+                PGPSignatureSubpacketGenerator spGen = new PGPSignatureSubpacketGenerator();
+                PGPSignatureSubpacketVector packetVector = spGen.generate();
+                signatureGenerator.setHashedSubpackets(packetVector);
+            }
 
-            PGPPublicKey signedKey = PGPPublicKey.addCertification(pubring.getPublicKey(pubKeyId),
-                    signatureGenerator.generate());
+            // fetch public key ring, add the certification and return it
+            PGPPublicKeyRing pubring = ProviderHelper
+                    .getPGPPublicKeyRingByKeyId(mContext, pubKeyId);
+            PGPPublicKey signedKey = pubring.getPublicKey(pubKeyId);
+            for(String userId : new IterableIterator<String>(userIds.iterator())) {
+                PGPSignature sig = signatureGenerator.generateCertification(userId, signedKey);
+                signedKey = PGPPublicKey.addCertification(signedKey, userId, sig);
+            }
             pubring = PGPPublicKeyRing.insertPublicKey(pubring, signedKey);
 
             return pubring;
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignEncrypt.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignEncrypt.java
index ba1182c1b..737e9c75d 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignEncrypt.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignEncrypt.java
@@ -18,28 +18,11 @@
 package org.sufficientlysecure.keychain.pgp;
 
 import android.content.Context;
-
 import org.spongycastle.bcpg.ArmoredOutputStream;
 import org.spongycastle.bcpg.BCPGOutputStream;
-import org.spongycastle.openpgp.PGPCompressedDataGenerator;
-import org.spongycastle.openpgp.PGPEncryptedDataGenerator;
-import org.spongycastle.openpgp.PGPException;
-import org.spongycastle.openpgp.PGPLiteralData;
-import org.spongycastle.openpgp.PGPLiteralDataGenerator;
-import org.spongycastle.openpgp.PGPPrivateKey;
-import org.spongycastle.openpgp.PGPPublicKey;
-import org.spongycastle.openpgp.PGPSecretKey;
-import org.spongycastle.openpgp.PGPSecretKeyRing;
-import org.spongycastle.openpgp.PGPSignature;
-import org.spongycastle.openpgp.PGPSignatureGenerator;
-import org.spongycastle.openpgp.PGPSignatureSubpacketGenerator;
-import org.spongycastle.openpgp.PGPV3SignatureGenerator;
+import org.spongycastle.openpgp.*;
 import org.spongycastle.openpgp.operator.PBESecretKeyDecryptor;
-import org.spongycastle.openpgp.operator.jcajce.JcaPGPContentSignerBuilder;
-import org.spongycastle.openpgp.operator.jcajce.JcePBEKeyEncryptionMethodGenerator;
-import org.spongycastle.openpgp.operator.jcajce.JcePBESecretKeyDecryptorBuilder;
-import org.spongycastle.openpgp.operator.jcajce.JcePGPDataEncryptorBuilder;
-import org.spongycastle.openpgp.operator.jcajce.JcePublicKeyKeyEncryptionMethodGenerator;
+import org.spongycastle.openpgp.operator.jcajce.*;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.Id;
 import org.sufficientlysecure.keychain.R;
@@ -49,11 +32,7 @@ import org.sufficientlysecure.keychain.util.InputData;
 import org.sufficientlysecure.keychain.util.Log;
 import org.sufficientlysecure.keychain.util.ProgressDialogUpdater;
 
-import java.io.BufferedReader;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.OutputStream;
+import java.io.*;
 import java.security.NoSuchAlgorithmException;
 import java.security.NoSuchProviderException;
 import java.security.SignatureException;
@@ -63,110 +42,110 @@ import java.util.Date;
  * This class uses a Builder pattern!
  */
 public class PgpSignEncrypt {
-    private Context context;
-    private InputData data;
-    private OutputStream outStream;
-
-    private ProgressDialogUpdater progress;
-    private boolean enableAsciiArmorOutput;
-    private int compressionId;
-    private long[] encryptionKeyIds;
-    private String encryptionPassphrase;
-    private int symmetricEncryptionAlgorithm;
-    private long signatureKeyId;
-    private int signatureHashAlgorithm;
-    private boolean signatureForceV3;
-    private String signaturePassphrase;
+    private Context mContext;
+    private InputData mData;
+    private OutputStream mOutStream;
+
+    private ProgressDialogUpdater mProgress;
+    private boolean mEnableAsciiArmorOutput;
+    private int mCompressionId;
+    private long[] mEncryptionKeyIds;
+    private String mEncryptionPassphrase;
+    private int mSymmetricEncryptionAlgorithm;
+    private long mSignatureKeyId;
+    private int mSignatureHashAlgorithm;
+    private boolean mSignatureForceV3;
+    private String mSignaturePassphrase;
 
     private PgpSignEncrypt(Builder builder) {
         // private Constructor can only be called from Builder
-        this.context = builder.context;
-        this.data = builder.data;
-        this.outStream = builder.outStream;
-
-        this.progress = builder.progress;
-        this.enableAsciiArmorOutput = builder.enableAsciiArmorOutput;
-        this.compressionId = builder.compressionId;
-        this.encryptionKeyIds = builder.encryptionKeyIds;
-        this.encryptionPassphrase = builder.encryptionPassphrase;
-        this.symmetricEncryptionAlgorithm = builder.symmetricEncryptionAlgorithm;
-        this.signatureKeyId = builder.signatureKeyId;
-        this.signatureHashAlgorithm = builder.signatureHashAlgorithm;
-        this.signatureForceV3 = builder.signatureForceV3;
-        this.signaturePassphrase = builder.signaturePassphrase;
+        this.mContext = builder.mContext;
+        this.mData = builder.mData;
+        this.mOutStream = builder.mOutStream;
+
+        this.mProgress = builder.mProgress;
+        this.mEnableAsciiArmorOutput = builder.mEnableAsciiArmorOutput;
+        this.mCompressionId = builder.mCompressionId;
+        this.mEncryptionKeyIds = builder.mEncryptionKeyIds;
+        this.mEncryptionPassphrase = builder.mEncryptionPassphrase;
+        this.mSymmetricEncryptionAlgorithm = builder.mSymmetricEncryptionAlgorithm;
+        this.mSignatureKeyId = builder.mSignatureKeyId;
+        this.mSignatureHashAlgorithm = builder.mSignatureHashAlgorithm;
+        this.mSignatureForceV3 = builder.mSignatureForceV3;
+        this.mSignaturePassphrase = builder.mSignaturePassphrase;
     }
 
     public static class Builder {
         // mandatory parameter
-        private Context context;
-        private InputData data;
-        private OutputStream outStream;
+        private Context mContext;
+        private InputData mData;
+        private OutputStream mOutStream;
 
         // optional
-        private ProgressDialogUpdater progress = null;
-        private boolean enableAsciiArmorOutput = false;
-        private int compressionId = Id.choice.compression.none;
-        private long[] encryptionKeyIds = new long[0];
-        private String encryptionPassphrase = null;
-        private int symmetricEncryptionAlgorithm = 0;
-        private long signatureKeyId = Id.key.none;
-        private int signatureHashAlgorithm = 0;
-        private boolean signatureForceV3 = false;
-        private String signaturePassphrase = null;
+        private ProgressDialogUpdater mProgress = null;
+        private boolean mEnableAsciiArmorOutput = false;
+        private int mCompressionId = Id.choice.compression.none;
+        private long[] mEncryptionKeyIds = new long[0];
+        private String mEncryptionPassphrase = null;
+        private int mSymmetricEncryptionAlgorithm = 0;
+        private long mSignatureKeyId = Id.key.none;
+        private int mSignatureHashAlgorithm = 0;
+        private boolean mSignatureForceV3 = false;
+        private String mSignaturePassphrase = null;
 
         public Builder(Context context, InputData data, OutputStream outStream) {
-            this.context = context;
-            this.data = data;
-            this.outStream = outStream;
+            this.mContext = context;
+            this.mData = data;
+            this.mOutStream = outStream;
         }
 
         public Builder progress(ProgressDialogUpdater progress) {
-            this.progress = progress;
+            this.mProgress = progress;
             return this;
         }
 
         public Builder enableAsciiArmorOutput(boolean enableAsciiArmorOutput) {
-            this.enableAsciiArmorOutput = enableAsciiArmorOutput;
+            this.mEnableAsciiArmorOutput = enableAsciiArmorOutput;
             return this;
         }
 
         public Builder compressionId(int compressionId) {
-            this.compressionId = compressionId;
+            this.mCompressionId = compressionId;
             return this;
         }
 
         public Builder encryptionKeyIds(long[] encryptionKeyIds) {
-            this.encryptionKeyIds = encryptionKeyIds;
+            this.mEncryptionKeyIds = encryptionKeyIds;
             return this;
         }
 
         public Builder encryptionPassphrase(String encryptionPassphrase) {
-            this.encryptionPassphrase = encryptionPassphrase;
+            this.mEncryptionPassphrase = encryptionPassphrase;
             return this;
         }
 
         public Builder symmetricEncryptionAlgorithm(int symmetricEncryptionAlgorithm) {
-            this.symmetricEncryptionAlgorithm = symmetricEncryptionAlgorithm;
+            this.mSymmetricEncryptionAlgorithm = symmetricEncryptionAlgorithm;
             return this;
         }
 
         public Builder signatureKeyId(long signatureKeyId) {
-            this.signatureKeyId = signatureKeyId;
+            this.mSignatureKeyId = signatureKeyId;
             return this;
         }
 
         public Builder signatureHashAlgorithm(int signatureHashAlgorithm) {
-            this.signatureHashAlgorithm = signatureHashAlgorithm;
+            this.mSignatureHashAlgorithm = signatureHashAlgorithm;
             return this;
         }
 
         public Builder signatureForceV3(boolean signatureForceV3) {
-            this.signatureForceV3 = signatureForceV3;
+            this.mSignatureForceV3 = signatureForceV3;
             return this;
         }
 
         public Builder signaturePassphrase(String signaturePassphrase) {
-            this.signaturePassphrase = signaturePassphrase;
+            this.mSignaturePassphrase = signaturePassphrase;
             return this;
         }
 
@@ -176,14 +155,14 @@ public class PgpSignEncrypt {
     }
 
     public void updateProgress(int message, int current, int total) {
-        if (progress != null) {
-            progress.setProgress(message, current, total);
+        if (mProgress != null) {
+            mProgress.setProgress(message, current, total);
         }
     }
 
     public void updateProgress(int current, int total) {
-        if (progress != null) {
-            progress.setProgress(current, total);
+        if (mProgress != null) {
+            mProgress.setProgress(current, total);
         }
     }
 
@@ -201,17 +180,17 @@ public class PgpSignEncrypt {
             throws IOException, PgpGeneralException, PGPException, NoSuchProviderException,
             NoSuchAlgorithmException, SignatureException {
 
-        boolean enableSignature = signatureKeyId != Id.key.none;
-        boolean enableEncryption = (encryptionKeyIds.length != 0 || encryptionPassphrase != null);
-        boolean enableCompression = (enableEncryption && compressionId != Id.choice.compression.none);
+        boolean enableSignature = mSignatureKeyId != Id.key.none;
+        boolean enableEncryption = (mEncryptionKeyIds.length != 0 || mEncryptionPassphrase != null);
+        boolean enableCompression = (enableEncryption && mCompressionId != Id.choice.compression.none);
 
         Log.d(Constants.TAG, "enableSignature:" + enableSignature
                 + "\nenableEncryption:" + enableEncryption
                 + "\nenableCompression:" + enableCompression
-                + "\nenableAsciiArmorOutput:" + enableAsciiArmorOutput);
+                + "\nenableAsciiArmorOutput:" + mEnableAsciiArmorOutput);
 
         int signatureType;
-        if (enableAsciiArmorOutput && enableSignature && !enableEncryption && !enableCompression) {
+        if (mEnableAsciiArmorOutput && enableSignature && !enableEncryption && !enableCompression) {
             // for sign-only ascii text
             signatureType = PGPSignature.CANONICAL_TEXT_DOCUMENT;
         } else {
@@ -220,12 +199,12 @@ public class PgpSignEncrypt {
 
         ArmoredOutputStream armorOut = null;
         OutputStream out;
-        if (enableAsciiArmorOutput) {
-            armorOut = new ArmoredOutputStream(outStream);
-            armorOut.setHeader("Version", PgpHelper.getFullVersion(context));
+        if (mEnableAsciiArmorOutput) {
+            armorOut = new ArmoredOutputStream(mOutStream);
+            armorOut.setHeader("Version", PgpHelper.getFullVersion(mContext));
             out = armorOut;
         } else {
-            out = outStream;
+            out = mOutStream;
         }
 
         /* Get keys for signature generation for later usage */
@@ -233,25 +212,25 @@ public class PgpSignEncrypt {
         PGPSecretKeyRing signingKeyRing = null;
         PGPPrivateKey signaturePrivateKey = null;
         if (enableSignature) {
-            signingKeyRing = ProviderHelper.getPGPSecretKeyRingByKeyId(context, signatureKeyId);
-            signingKey = PgpKeyHelper.getSigningKey(context, signatureKeyId);
+            signingKeyRing = ProviderHelper.getPGPSecretKeyRingByKeyId(mContext, mSignatureKeyId);
+            signingKey = PgpKeyHelper.getSigningKey(mContext, mSignatureKeyId);
             if (signingKey == null) {
-                throw new PgpGeneralException(context.getString(R.string.error_signature_failed));
+                throw new PgpGeneralException(mContext.getString(R.string.error_signature_failed));
             }
 
-            if (signaturePassphrase == null) {
+            if (mSignaturePassphrase == null) {
                 throw new PgpGeneralException(
-                        context.getString(R.string.error_no_signature_passphrase));
+                        mContext.getString(R.string.error_no_signature_passphrase));
             }
 
             updateProgress(R.string.progress_extracting_signature_key, 0, 100);
 
             PBESecretKeyDecryptor keyDecryptor = new JcePBESecretKeyDecryptorBuilder().setProvider(
-                    Constants.BOUNCY_CASTLE_PROVIDER_NAME).build(signaturePassphrase.toCharArray());
+                    Constants.BOUNCY_CASTLE_PROVIDER_NAME).build(mSignaturePassphrase.toCharArray());
             signaturePrivateKey = signingKey.extractPrivateKey(keyDecryptor);
             if (signaturePrivateKey == null) {
                 throw new PgpGeneralException(
-                        context.getString(R.string.error_could_not_extract_private_key));
+                        mContext.getString(R.string.error_could_not_extract_private_key));
             }
         }
         updateProgress(R.string.progress_preparing_streams, 5, 100);
@@ -261,23 +240,23 @@ public class PgpSignEncrypt {
         if (enableEncryption) {
             // has Integrity packet enabled!
             JcePGPDataEncryptorBuilder encryptorBuilder =
-                    new JcePGPDataEncryptorBuilder(symmetricEncryptionAlgorithm)
+                    new JcePGPDataEncryptorBuilder(mSymmetricEncryptionAlgorithm)
                             .setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME)
                             .setWithIntegrityPacket(true);
 
             cPk = new PGPEncryptedDataGenerator(encryptorBuilder);
 
-            if (encryptionKeyIds.length == 0) {
+            if (mEncryptionKeyIds.length == 0) {
                 // Symmetric encryption
                 Log.d(Constants.TAG, "encryptionKeyIds length is 0 -> symmetric encryption");
 
                 JcePBEKeyEncryptionMethodGenerator symmetricEncryptionGenerator =
-                        new JcePBEKeyEncryptionMethodGenerator(encryptionPassphrase.toCharArray());
+                        new JcePBEKeyEncryptionMethodGenerator(mEncryptionPassphrase.toCharArray());
                 cPk.addMethod(symmetricEncryptionGenerator);
             } else {
                 // Asymmetric encryption
-                for (long id : encryptionKeyIds) {
-                    PGPPublicKey key = PgpKeyHelper.getEncryptPublicKey(context, id);
+                for (long id : mEncryptionKeyIds) {
+                    PGPPublicKey key = PgpKeyHelper.getEncryptPublicKey(mContext, id);
                     if (key != null) {
                         JcePublicKeyKeyEncryptionMethodGenerator pubKeyEncryptionGenerator =
                                 new JcePublicKeyKeyEncryptionMethodGenerator(key);
@@ -295,10 +274,10 @@ public class PgpSignEncrypt {
 
             // content signer based on signing key algorithm and chosen hash algorithm
             JcaPGPContentSignerBuilder contentSignerBuilder = new JcaPGPContentSignerBuilder(
-                    signingKey.getPublicKey().getAlgorithm(), signatureHashAlgorithm)
+                    signingKey.getPublicKey().getAlgorithm(), mSignatureHashAlgorithm)
                     .setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME);
 
-            if (signatureForceV3) {
+            if (mSignatureForceV3) {
                 signatureV3Generator = new PGPV3SignatureGenerator(contentSignerBuilder);
                 signatureV3Generator.init(signatureType, signaturePrivateKey);
             } else {
@@ -322,14 +301,14 @@ public class PgpSignEncrypt {
             encryptionOut = cPk.open(out, new byte[1 << 16]);
 
             if (enableCompression) {
-                compressGen = new PGPCompressedDataGenerator(compressionId);
+                compressGen = new PGPCompressedDataGenerator(mCompressionId);
                 bcpgOut = new BCPGOutputStream(compressGen.open(encryptionOut));
             } else {
                 bcpgOut = new BCPGOutputStream(encryptionOut);
             }
 
             if (enableSignature) {
-                if (signatureForceV3) {
+                if (mSignatureForceV3) {
                     signatureV3Generator.generateOnePassVersion(false).encode(bcpgOut);
                 } else {
                     signatureGenerator.generateOnePassVersion(false).encode(bcpgOut);
@@ -345,13 +324,13 @@ public class PgpSignEncrypt {
             long progress = 0;
             int n;
             byte[] buffer = new byte[1 << 16];
-            InputStream in = data.getInputStream();
+            InputStream in = mData.getInputStream();
             while ((n = in.read(buffer)) > 0) {
                 pOut.write(buffer, 0, n);
 
                 // update signature buffer if signature is requested
                 if (enableSignature) {
-                    if (signatureForceV3) {
+                    if (mSignatureForceV3) {
                         signatureV3Generator.update(buffer, 0, n);
                     } else {
                         signatureGenerator.update(buffer, 0, n);
@@ -359,26 +338,26 @@ public class PgpSignEncrypt {
                 }
 
                 progress += n;
-                if (data.getSize() != 0) {
-                    updateProgress((int) (20 + (95 - 20) * progress / data.getSize()), 100);
+                if (mData.getSize() != 0) {
+                    updateProgress((int) (20 + (95 - 20) * progress / mData.getSize()), 100);
                 }
             }
 
             literalGen.close();
-        } else if (enableAsciiArmorOutput && enableSignature && !enableEncryption && !enableCompression) {
+        } else if (mEnableAsciiArmorOutput && enableSignature && !enableEncryption && !enableCompression) {
             /* sign-only of ascii text */
 
             updateProgress(R.string.progress_signing, 40, 100);
 
             // write directly on armor output stream
-            armorOut.beginClearText(signatureHashAlgorithm);
+            armorOut.beginClearText(mSignatureHashAlgorithm);
 
-            InputStream in = data.getInputStream();
+            InputStream in = mData.getInputStream();
             final BufferedReader reader = new BufferedReader(new InputStreamReader(in));
 
             final byte[] newline = "\r\n".getBytes("UTF-8");
 
-            if (signatureForceV3) {
+            if (mSignatureForceV3) {
                 processLine(reader.readLine(), armorOut, signatureV3Generator);
             } else {
                 processLine(reader.readLine(), armorOut, signatureGenerator);
@@ -395,7 +374,7 @@ public class PgpSignEncrypt {
                 armorOut.write(newline);
 
                 // update signature buffer with input line
-                if (signatureForceV3) {
+                if (mSignatureForceV3) {
                     signatureV3Generator.update(newline);
                     processLine(line, armorOut, signatureV3Generator);
                 } else {
@@ -415,7 +394,7 @@ public class PgpSignEncrypt {
 
         if (enableSignature) {
             updateProgress(R.string.progress_generating_signature, 95, 100);
-            if (signatureForceV3) {
+            if (mSignatureForceV3) {
                 signatureV3Generator.generate().encode(pOut);
             } else {
                 signatureGenerator.generate().encode(pOut);
@@ -432,12 +411,12 @@ public class PgpSignEncrypt {
 
             encryptionOut.close();
         }
-        if (enableAsciiArmorOutput) {
+        if (mEnableAsciiArmorOutput) {
             armorOut.close();
         }
 
         out.close();
-        outStream.close();
+        mOutStream.close();
 
         updateProgress(R.string.progress_done, 100, 100);
     }
@@ -449,35 +428,36 @@ public class PgpSignEncrypt {
             SignatureException {
 
         OutputStream out;
-        if (enableAsciiArmorOutput) {
+        if (mEnableAsciiArmorOutput) {
             // Ascii Armor (Radix-64)
-            ArmoredOutputStream armorOut = new ArmoredOutputStream(outStream);
-            armorOut.setHeader("Version", PgpHelper.getFullVersion(context));
+            ArmoredOutputStream armorOut = new ArmoredOutputStream(mOutStream);
+            armorOut.setHeader("Version", PgpHelper.getFullVersion(mContext));
             out = armorOut;
         } else {
-            out = outStream;
+            out = mOutStream;
         }
 
-        if (signatureKeyId == 0) {
-            throw new PgpGeneralException(context.getString(R.string.error_no_signature_key));
+        if (mSignatureKeyId == 0) {
+            throw new PgpGeneralException(mContext.getString(R.string.error_no_signature_key));
         }
 
-        PGPSecretKeyRing signingKeyRing = ProviderHelper.getPGPSecretKeyRingByKeyId(context, signatureKeyId);
-        PGPSecretKey signingKey = PgpKeyHelper.getSigningKey(context, signatureKeyId);
+        PGPSecretKeyRing signingKeyRing =
+                ProviderHelper.getPGPSecretKeyRingByKeyId(mContext, mSignatureKeyId);
+        PGPSecretKey signingKey = PgpKeyHelper.getSigningKey(mContext, mSignatureKeyId);
         if (signingKey == null) {
-            throw new PgpGeneralException(context.getString(R.string.error_signature_failed));
+            throw new PgpGeneralException(mContext.getString(R.string.error_signature_failed));
         }
 
-        if (signaturePassphrase == null) {
-            throw new PgpGeneralException(context.getString(R.string.error_no_signature_passphrase));
+        if (mSignaturePassphrase == null) {
+            throw new PgpGeneralException(mContext.getString(R.string.error_no_signature_passphrase));
         }
 
         PBESecretKeyDecryptor keyDecryptor = new JcePBESecretKeyDecryptorBuilder().setProvider(
-                Constants.BOUNCY_CASTLE_PROVIDER_NAME).build(signaturePassphrase.toCharArray());
+                Constants.BOUNCY_CASTLE_PROVIDER_NAME).build(mSignaturePassphrase.toCharArray());
         PGPPrivateKey signaturePrivateKey = signingKey.extractPrivateKey(keyDecryptor);
         if (signaturePrivateKey == null) {
             throw new PgpGeneralException(
-                    context.getString(R.string.error_could_not_extract_private_key));
+                    mContext.getString(R.string.error_could_not_extract_private_key));
         }
         updateProgress(R.string.progress_preparing_streams, 0, 100);
 
@@ -490,12 +470,12 @@ public class PgpSignEncrypt {
 
         // content signer based on signing key algorithm and chosen hash algorithm
         JcaPGPContentSignerBuilder contentSignerBuilder = new JcaPGPContentSignerBuilder(signingKey
-                .getPublicKey().getAlgorithm(), signatureHashAlgorithm)
+                .getPublicKey().getAlgorithm(), mSignatureHashAlgorithm)
                 .setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME);
 
         PGPSignatureGenerator signatureGenerator = null;
         PGPV3SignatureGenerator signatureV3Generator = null;
-        if (signatureForceV3) {
+        if (mSignatureForceV3) {
             signatureV3Generator = new PGPV3SignatureGenerator(contentSignerBuilder);
             signatureV3Generator.init(type, signaturePrivateKey);
         } else {
@@ -510,7 +490,7 @@ public class PgpSignEncrypt {
 
         updateProgress(R.string.progress_signing, 40, 100);
 
-        InputStream inStream = data.getInputStream();
+        InputStream inStream = mData.getInputStream();
 //        if (binary) {
 //            byte[] buffer = new byte[1 << 16];
 //            int n = 0;
@@ -527,7 +507,7 @@ public class PgpSignEncrypt {
 
         String line;
         while ((line = reader.readLine()) != null) {
-            if (signatureForceV3) {
+            if (mSignatureForceV3) {
                 processLine(line, null, signatureV3Generator);
                 signatureV3Generator.update(newline);
             } else {
@@ -538,13 +518,13 @@ public class PgpSignEncrypt {
 //        }
 
         BCPGOutputStream bOut = new BCPGOutputStream(out);
-        if (signatureForceV3) {
+        if (mSignatureForceV3) {
             signatureV3Generator.generate().encode(bOut);
         } else {
             signatureGenerator.generate().encode(bOut);
         }
         out.close();
-        outStream.close();
+        mOutStream.close();
 
         updateProgress(R.string.progress_done, 100, 100);
     }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpToX509.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpToX509.java
index e18eb0d6d..54601173d 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpToX509.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpToX509.java
@@ -1,33 +1,24 @@
-package org.sufficientlysecure.keychain.pgp;
-
-import java.io.IOException;
-import java.math.BigInteger;
-import java.security.InvalidKeyException;
-import java.security.NoSuchAlgorithmException;
-import java.security.NoSuchProviderException;
-import java.security.PrivateKey;
-import java.security.PublicKey;
-import java.security.SignatureException;
-import java.security.cert.CertificateException;
-import java.security.cert.X509Certificate;
-import java.text.DateFormat;
-import java.util.Date;
-import java.util.Iterator;
-import java.util.Vector;
+/*
+ * Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
+ * Copyright (C) 2010 Thialfihar <thi@thialfihar.org>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
-import javax.security.auth.callback.Callback;
-import javax.security.auth.callback.CallbackHandler;
-import javax.security.auth.callback.PasswordCallback;
-import javax.security.auth.callback.UnsupportedCallbackException;
+package org.sufficientlysecure.keychain.pgp;
 
 import org.spongycastle.asn1.DERObjectIdentifier;
-import org.spongycastle.asn1.x509.AuthorityKeyIdentifier;
-import org.spongycastle.asn1.x509.BasicConstraints;
-import org.spongycastle.asn1.x509.GeneralName;
-import org.spongycastle.asn1.x509.GeneralNames;
-import org.spongycastle.asn1.x509.SubjectKeyIdentifier;
-import org.spongycastle.asn1.x509.X509Extensions;
-import org.spongycastle.asn1.x509.X509Name;
+import org.spongycastle.asn1.x509.*;
 import org.spongycastle.openpgp.PGPException;
 import org.spongycastle.openpgp.PGPPrivateKey;
 import org.spongycastle.openpgp.PGPPublicKey;
@@ -38,30 +29,38 @@ import org.spongycastle.x509.extension.SubjectKeyIdentifierStructure;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.util.Log;
 
+import javax.security.auth.callback.Callback;
+import javax.security.auth.callback.CallbackHandler;
+import javax.security.auth.callback.PasswordCallback;
+import javax.security.auth.callback.UnsupportedCallbackException;
+import java.io.IOException;
+import java.math.BigInteger;
+import java.security.*;
+import java.security.cert.CertificateException;
+import java.security.cert.X509Certificate;
+import java.text.DateFormat;
+import java.util.Date;
+import java.util.Iterator;
+import java.util.Vector;
+
 public class PgpToX509 {
-    public final static String DN_COMMON_PART_O = "OpenPGP to X.509 Bridge";
-    public final static String DN_COMMON_PART_OU = "OpenPGP Keychain cert";
+    public static final String DN_COMMON_PART_O = "OpenPGP to X.509 Bridge";
+    public static final String DN_COMMON_PART_OU = "OpenPGP Keychain cert";
 
     /**
      * Creates a self-signed certificate from a public and private key. The (critical) key-usage
      * extension is set up with: digital signature, non-repudiation, key-encipherment, key-agreement
      * and certificate-signing. The (non-critical) Netscape extension is set up with: SSL client and
      * S/MIME. A URI subjectAltName may also be set up.
-     * 
-     * @param pubKey
-     *            public key
-     * @param privKey
-     *            private key
-     * @param subject
-     *            subject (and issuer) DN for this certificate, RFC 2253 format preferred.
-     * @param startDate
-     *            date from which the certificate will be valid (defaults to current date and time
-     *            if null)
-     * @param endDate
-     *            date until which the certificate will be valid (defaults to current date and time
-     *            if null) *
-     * @param subjAltNameURI
-     *            URI to be placed in subjectAltName
+     *
+     * @param pubKey         public key
+     * @param privKey        private key
+     * @param subject        subject (and issuer) DN for this certificate, RFC 2253 format preferred.
+     * @param startDate      date from which the certificate will be valid (defaults to current date and time
+     *                       if null)
+     * @param endDate        date until which the certificate will be valid (defaults to current date and time
+     *                       if null) *
+     * @param subjAltNameURI URI to be placed in subjectAltName
      * @return self-signed certificate
      * @throws InvalidKeyException
      * @throws SignatureException
@@ -70,11 +69,10 @@ public class PgpToX509 {
      * @throws NoSuchProviderException
      * @throws CertificateException
      * @throws Exception
-     * 
      * @author Bruno Harbulot
      */
     public static X509Certificate createSelfSignedCert(PublicKey pubKey, PrivateKey privKey,
-            X509Name subject, Date startDate, Date endDate, String subjAltNameURI)
+                                                       X509Name subject, Date startDate, Date endDate, String subjAltNameURI)
             throws InvalidKeyException, IllegalStateException, NoSuchAlgorithmException,
             SignatureException, CertificateException, NoSuchProviderException {
 
@@ -171,15 +169,12 @@ public class PgpToX509 {
 
     /**
      * Creates a self-signed certificate from a PGP Secret Key.
-     * 
-     * @param pgpSecKey
-     *            PGP Secret Key (from which one can extract the public and private keys and other
-     *            attributes).
-     * @param pgpPrivKey
-     *            PGP Private Key corresponding to the Secret Key (password callbacks should be done
-     *            before calling this method)
-     * @param subjAltNameURI
-     *            optional URI to embed in the subject alternative-name
+     *
+     * @param pgpSecKey      PGP Secret Key (from which one can extract the public and private keys and other
+     *                       attributes).
+     * @param pgpPrivKey     PGP Private Key corresponding to the Secret Key (password callbacks should be done
+     *                       before calling this method)
+     * @param subjAltNameURI optional URI to embed in the subject alternative-name
      * @return self-signed certificate
      * @throws PGPException
      * @throws NoSuchProviderException
@@ -187,11 +182,10 @@ public class PgpToX509 {
      * @throws NoSuchAlgorithmException
      * @throws SignatureException
      * @throws CertificateException
-     * 
      * @author Bruno Harbulot
      */
     public static X509Certificate createSelfSignedCert(PGPSecretKey pgpSecKey,
-            PGPPrivateKey pgpPrivKey, String subjAltNameURI) throws PGPException,
+                                                       PGPPrivateKey pgpPrivKey, String subjAltNameURI) throws PGPException,
             NoSuchProviderException, InvalidKeyException, NoSuchAlgorithmException,
             SignatureException, CertificateException {
         // get public key from secret key
@@ -213,7 +207,7 @@ public class PgpToX509 {
         x509NameValues.add(DN_COMMON_PART_OU);
 
         for (@SuppressWarnings("unchecked")
-        Iterator<Object> it = (Iterator<Object>) pgpSecKey.getUserIDs(); it.hasNext();) {
+             Iterator<Object> it = (Iterator<Object>) pgpSecKey.getUserIDs(); it.hasNext(); ) {
             Object attrib = it.next();
             x509NameOids.add(X509Name.CN);
             x509NameValues.add("CryptoCall");
@@ -225,7 +219,7 @@ public class PgpToX509 {
          */
         Log.d(Constants.TAG, "User attributes: ");
         for (@SuppressWarnings("unchecked")
-        Iterator<Object> it = (Iterator<Object>) pgpSecKey.getUserAttributes(); it.hasNext();) {
+             Iterator<Object> it = (Iterator<Object>) pgpSecKey.getUserAttributes(); it.hasNext(); ) {
             Object attrib = it.next();
             Log.d(Constants.TAG, " - " + attrib + " -- " + attrib.getClass());
         }
@@ -261,14 +255,13 @@ public class PgpToX509 {
      * This is a password callback handler that will fill in a password automatically. Useful to
      * configure passwords in advance, but should be used with caution depending on how much you
      * allow passwords to be stored within your application.
-     * 
+     *
      * @author Bruno Harbulot.
-     * 
      */
-    public final static class PredefinedPasswordCallbackHandler implements CallbackHandler {
+    public static final class PredefinedPasswordCallbackHandler implements CallbackHandler {
 
-        private char[] password;
-        private String prompt;
+        private char[] mPassword;
+        private String mPrompt;
 
         public PredefinedPasswordCallbackHandler(String password) {
             this(password == null ? null : password.toCharArray(), null);
@@ -283,16 +276,16 @@ public class PgpToX509 {
         }
 
         public PredefinedPasswordCallbackHandler(char[] password, String prompt) {
-            this.password = password;
-            this.prompt = prompt;
+            this.mPassword = password;
+            this.mPrompt = prompt;
         }
 
         public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
             for (Callback callback : callbacks) {
                 if (callback instanceof PasswordCallback) {
                     PasswordCallback pwCallback = (PasswordCallback) callback;
-                    if ((this.prompt == null) || (this.prompt.equals(pwCallback.getPrompt()))) {
-                        pwCallback.setPassword(this.password);
+                    if ((this.mPrompt == null) || (this.mPrompt.equals(pwCallback.getPrompt()))) {
+                        pwCallback.setPassword(this.mPassword);
                     }
                 } else {
                     throw new UnsupportedCallbackException(callback, "Unrecognised callback.");
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/exception/NoAsymmetricEncryptionException.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/exception/NoAsymmetricEncryptionException.java
index 92542fa35..23c4bbbd9 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/exception/NoAsymmetricEncryptionException.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/exception/NoAsymmetricEncryptionException.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2012-2013 Dominik Schürmann <dominik@dominikschuermann.de>
+ * Copyright (C) 2010 Thialfihar <thi@thialfihar.org>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.sufficientlysecure.keychain.pgp.exception;
 
 public class NoAsymmetricEncryptionException extends Exception {
@@ -6,4 +23,4 @@ public class NoAsymmetricEncryptionException extends Exception {
     public NoAsymmetricEncryptionException() {
         super();
     }
-}
\ No newline at end of file
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/exception/PgpGeneralException.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/exception/PgpGeneralException.java
index 36c663727..bb80d27ee 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/exception/PgpGeneralException.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/exception/PgpGeneralException.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2012-2013 Dominik Schürmann <dominik@dominikschuermann.de>
+ * Copyright (C) 2010 Thialfihar <thi@thialfihar.org>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.sufficientlysecure.keychain.pgp.exception;
 
 public class PgpGeneralException extends Exception {
@@ -6,4 +23,4 @@ public class PgpGeneralException extends Exception {
     public PgpGeneralException(String message) {
         super(message);
     }
-}
\ No newline at end of file
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainContract.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainContract.java
index d8de30b37..e7b31bf65 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainContract.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainContract.java
@@ -17,11 +17,11 @@
 
 package org.sufficientlysecure.keychain.provider;
 
-import org.sufficientlysecure.keychain.Constants;
-
 import android.net.Uri;
 import android.provider.BaseColumns;
 
+import org.sufficientlysecure.keychain.Constants;
+
 public class KeychainContract {
 
     interface KeyRingsColumns {
@@ -57,10 +57,15 @@ public class KeychainContract {
     interface ApiAppsColumns {
         String PACKAGE_NAME = "package_name";
         String PACKAGE_SIGNATURE = "package_signature";
+    }
+
+    interface ApiAppsAccountsColumns {
+        String ACCOUNT_NAME = "account_name";
         String KEY_ID = "key_id"; // not a database id
         String ENCRYPTION_ALGORITHM = "encryption_algorithm";
         String HASH_ALORITHM = "hash_algorithm";
         String COMPRESSION = "compression";
+        String PACKAGE_NAME = "package_name"; // foreign key to api_apps.package_name
     }
 
     public static final class KeyTypes {
@@ -88,18 +93,26 @@ public class KeychainContract {
     public static final String PATH_KEYS = "keys";
 
     public static final String BASE_API_APPS = "api_apps";
-    public static final String PATH_BY_PACKAGE_NAME = "package_name";
+    public static final String PATH_ACCOUNTS = "accounts";
 
     public static class KeyRings implements KeyRingsColumns, BaseColumns {
         public static final Uri CONTENT_URI = BASE_CONTENT_URI_INTERNAL.buildUpon()
                 .appendPath(BASE_KEY_RINGS).build();
 
-        /** Use if multiple items get returned */
+        /**
+         * Use if multiple items get returned
+         */
         public static final String CONTENT_TYPE = "vnd.android.cursor.dir/vnd.thialfihar.apg.key_ring";
 
-        /** Use if a single item is returned */
+        /**
+         * Use if a single item is returned
+         */
         public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/vnd.thialfihar.apg.key_ring";
 
+        public static Uri buildUnifiedKeyRingsUri() {
+            return CONTENT_URI;
+        }
+
         public static Uri buildPublicKeyRingsUri() {
             return CONTENT_URI.buildUpon().appendPath(PATH_PUBLIC).build();
         }
@@ -147,6 +160,7 @@ public class KeychainContract {
         }
 
         public static Uri buildSecretKeyRingsByEmailsUri(String emails) {
+            // TODO: encoded?
             return CONTENT_URI.buildUpon().appendPath(PATH_SECRET).appendPath(PATH_BY_EMAILS)
                     .appendPath(emails).build();
         }
@@ -161,10 +175,14 @@ public class KeychainContract {
         public static final Uri CONTENT_URI = BASE_CONTENT_URI_INTERNAL.buildUpon()
                 .appendPath(BASE_KEY_RINGS).build();
 
-        /** Use if multiple items get returned */
+        /**
+         * Use if multiple items get returned
+         */
         public static final String CONTENT_TYPE = "vnd.android.cursor.dir/vnd.thialfihar.apg.key";
 
-        /** Use if a single item is returned */
+        /**
+         * Use if a single item is returned
+         */
         public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/vnd.thialfihar.apg.key";
 
         public static Uri buildPublicKeysUri(String keyRingRowId) {
@@ -200,10 +218,14 @@ public class KeychainContract {
         public static final Uri CONTENT_URI = BASE_CONTENT_URI_INTERNAL.buildUpon()
                 .appendPath(BASE_KEY_RINGS).build();
 
-        /** Use if multiple items get returned */
+        /**
+         * Use if multiple items get returned
+         */
         public static final String CONTENT_TYPE = "vnd.android.cursor.dir/vnd.thialfihar.apg.user_id";
 
-        /** Use if a single item is returned */
+        /**
+         * Use if a single item is returned
+         */
         public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/vnd.thialfihar.apg.user_id";
 
         public static Uri buildPublicUserIdsUri(String keyRingRowId) {
@@ -239,20 +261,44 @@ public class KeychainContract {
         public static final Uri CONTENT_URI = BASE_CONTENT_URI_INTERNAL.buildUpon()
                 .appendPath(BASE_API_APPS).build();
 
-        /** Use if multiple items get returned */
+        /**
+         * Use if multiple items get returned
+         */
         public static final String CONTENT_TYPE = "vnd.android.cursor.dir/vnd.thialfihar.apg.api_apps";
 
-        /** Use if a single item is returned */
-        public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/vnd.thialfihar.apg.api_apps";
+        /**
+         * Use if a single item is returned
+         */
+        public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/vnd.thialfihar.apg.api_app";
 
-        public static Uri buildIdUri(String rowId) {
-            return CONTENT_URI.buildUpon().appendPath(rowId).build();
+        public static Uri buildByPackageNameUri(String packageName) {
+            return CONTENT_URI.buildUpon().appendEncodedPath(packageName).build();
         }
+    }
 
-        public static Uri buildByPackageNameUri(String packageName) {
-            return CONTENT_URI.buildUpon().appendPath(PATH_BY_PACKAGE_NAME).appendPath(packageName)
+    public static class ApiAccounts implements ApiAppsAccountsColumns, BaseColumns {
+        public static final Uri CONTENT_URI = BASE_CONTENT_URI_INTERNAL.buildUpon()
+                .appendPath(BASE_API_APPS).build();
+
+        /**
+         * Use if multiple items get returned
+         */
+        public static final String CONTENT_TYPE = "vnd.android.cursor.dir/vnd.thialfihar.apg.api_app.accounts";
+
+        /**
+         * Use if a single item is returned
+         */
+        public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/vnd.thialfihar.apg.api_app.account";
+
+        public static Uri buildBaseUri(String packageName) {
+            return CONTENT_URI.buildUpon().appendEncodedPath(packageName).appendPath(PATH_ACCOUNTS)
                     .build();
         }
+
+        public static Uri buildByPackageAndAccountUri(String packageName, String accountName) {
+            return CONTENT_URI.buildUpon().appendEncodedPath(packageName).appendPath(PATH_ACCOUNTS)
+                    .appendEncodedPath(accountName).build();
+        }
     }
 
     public static class DataStream {
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainDatabase.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainDatabase.java
index 5f18ed6f9..8c33844b2 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainDatabase.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainDatabase.java
@@ -17,27 +17,29 @@
 
 package org.sufficientlysecure.keychain.provider;
 
+import android.content.Context;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteOpenHelper;
+import android.provider.BaseColumns;
+
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.provider.KeychainContract.ApiAppsColumns;
+import org.sufficientlysecure.keychain.provider.KeychainContract.ApiAppsAccountsColumns;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRingsColumns;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeysColumns;
 import org.sufficientlysecure.keychain.provider.KeychainContract.UserIdsColumns;
 import org.sufficientlysecure.keychain.util.Log;
 
-import android.content.Context;
-import android.database.sqlite.SQLiteDatabase;
-import android.database.sqlite.SQLiteOpenHelper;
-import android.provider.BaseColumns;
-
 public class KeychainDatabase extends SQLiteOpenHelper {
     private static final String DATABASE_NAME = "apg.db";
-    private static final int DATABASE_VERSION = 7;
+    private static final int DATABASE_VERSION = 8;
 
     public interface Tables {
         String KEY_RINGS = "key_rings";
         String KEYS = "keys";
         String USER_IDS = "user_ids";
         String API_APPS = "api_apps";
+        String API_ACCOUNTS = "api_accounts";
     }
 
     private static final String CREATE_KEY_RINGS = "CREATE TABLE IF NOT EXISTS " + Tables.KEY_RINGS
@@ -62,26 +64,35 @@ public class KeychainDatabase extends SQLiteOpenHelper {
             + KeysColumns.KEY_DATA + " BLOB,"
             + KeysColumns.RANK + " INTEGER, "
             + KeysColumns.FINGERPRINT + " BLOB, "
-            + KeysColumns.KEY_RING_ROW_ID + " INTEGER NOT NULL, FOREIGN KEY("
-            + KeysColumns.KEY_RING_ROW_ID + ") REFERENCES " + Tables.KEY_RINGS + "("
-            + BaseColumns._ID + ") ON DELETE CASCADE)";
+            + KeysColumns.KEY_RING_ROW_ID + " INTEGER NOT NULL, "
+            + "FOREIGN KEY(" + KeysColumns.KEY_RING_ROW_ID + ") REFERENCES "
+            + Tables.KEY_RINGS + "(" + BaseColumns._ID + ") ON DELETE CASCADE)";
 
     private static final String CREATE_USER_IDS = "CREATE TABLE IF NOT EXISTS " + Tables.USER_IDS
             + " (" + BaseColumns._ID + " INTEGER PRIMARY KEY AUTOINCREMENT, "
             + UserIdsColumns.USER_ID + " TEXT, "
             + UserIdsColumns.RANK + " INTEGER, "
-            + UserIdsColumns.KEY_RING_ROW_ID + " INTEGER NOT NULL, FOREIGN KEY("
-            + UserIdsColumns.KEY_RING_ROW_ID + ") REFERENCES " + Tables.KEY_RINGS + "("
-            + BaseColumns._ID + ") ON DELETE CASCADE)";
+            + UserIdsColumns.KEY_RING_ROW_ID + " INTEGER NOT NULL, "
+            + "FOREIGN KEY(" + UserIdsColumns.KEY_RING_ROW_ID + ") REFERENCES "
+            + Tables.KEY_RINGS + "(" + BaseColumns._ID + ") ON DELETE CASCADE)";
 
     private static final String CREATE_API_APPS = "CREATE TABLE IF NOT EXISTS " + Tables.API_APPS
             + " (" + BaseColumns._ID + " INTEGER PRIMARY KEY AUTOINCREMENT, "
-            + ApiAppsColumns.PACKAGE_NAME + " TEXT UNIQUE, "
-            + ApiAppsColumns.PACKAGE_SIGNATURE + " BLOB, "
-            + ApiAppsColumns.KEY_ID + " INT64, "
-            + ApiAppsColumns.ENCRYPTION_ALGORITHM + " INTEGER, "
-            + ApiAppsColumns.HASH_ALORITHM + " INTEGER, "
-            + ApiAppsColumns.COMPRESSION + " INTEGER)";
+            + ApiAppsColumns.PACKAGE_NAME + " TEXT NOT NULL UNIQUE, "
+            + ApiAppsColumns.PACKAGE_SIGNATURE + " BLOB)";
+
+    private static final String CREATE_API_APPS_ACCOUNTS = "CREATE TABLE IF NOT EXISTS " + Tables.API_ACCOUNTS
+            + " (" + BaseColumns._ID + " INTEGER PRIMARY KEY AUTOINCREMENT, "
+            + ApiAppsAccountsColumns.ACCOUNT_NAME + " TEXT NOT NULL, "
+            + ApiAppsAccountsColumns.KEY_ID + " INT64, "
+            + ApiAppsAccountsColumns.ENCRYPTION_ALGORITHM + " INTEGER, "
+            + ApiAppsAccountsColumns.HASH_ALORITHM + " INTEGER, "
+            + ApiAppsAccountsColumns.COMPRESSION + " INTEGER, "
+            + ApiAppsAccountsColumns.PACKAGE_NAME + " TEXT NOT NULL, "
+            + "UNIQUE(" + ApiAppsAccountsColumns.ACCOUNT_NAME + ", "
+            + ApiAppsAccountsColumns.PACKAGE_NAME + "), "
+            + "FOREIGN KEY(" + ApiAppsAccountsColumns.PACKAGE_NAME + ") REFERENCES "
+            + Tables.API_APPS + "(" + ApiAppsColumns.PACKAGE_NAME + ") ON DELETE CASCADE)";
 
     KeychainDatabase(Context context) {
         super(context, DATABASE_NAME, null, DATABASE_VERSION);
@@ -95,6 +106,7 @@ public class KeychainDatabase extends SQLiteOpenHelper {
         db.execSQL(CREATE_KEYS);
         db.execSQL(CREATE_USER_IDS);
         db.execSQL(CREATE_API_APPS);
+        db.execSQL(CREATE_API_APPS_ACCOUNTS);
     }
 
     @Override
@@ -134,6 +146,12 @@ public class KeychainDatabase extends SQLiteOpenHelper {
                     db.execSQL("ALTER TABLE " + Tables.KEYS + " ADD COLUMN " + KeysColumns.FINGERPRINT
                             + " BLOB;");
                     break;
+                case 7:
+                    // new db layout for api apps
+                    db.execSQL("DROP TABLE IF EXISTS " + Tables.API_APPS);
+                    db.execSQL(CREATE_API_APPS);
+                    db.execSQL(CREATE_API_APPS_ACCOUNTS);
+                    break;
                 default:
                     break;
 
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainProvider.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainProvider.java
index 781f36758..1c5e3ab36 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainProvider.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2012-2013 Dominik Schürmann <dominik@dominikschuermann.de>
+ * Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
  * Copyright (C) 2010 Thialfihar <thi@thialfihar.org>
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -17,10 +17,20 @@
 
 package org.sufficientlysecure.keychain.provider;
 
-import java.util.Arrays;
-import java.util.HashMap;
+import android.content.ContentProvider;
+import android.content.ContentValues;
+import android.content.UriMatcher;
+import android.database.Cursor;
+import android.database.DatabaseUtils;
+import android.database.sqlite.SQLiteConstraintException;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteQueryBuilder;
+import android.net.Uri;
+import android.provider.BaseColumns;
+import android.text.TextUtils;
 
 import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.provider.KeychainContract.ApiAccounts;
 import org.sufficientlysecure.keychain.provider.KeychainContract.ApiApps;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRingsColumns;
@@ -32,17 +42,8 @@ import org.sufficientlysecure.keychain.provider.KeychainContract.UserIdsColumns;
 import org.sufficientlysecure.keychain.provider.KeychainDatabase.Tables;
 import org.sufficientlysecure.keychain.util.Log;
 
-import android.content.ContentProvider;
-import android.content.ContentValues;
-import android.content.UriMatcher;
-import android.database.Cursor;
-import android.database.DatabaseUtils;
-import android.database.sqlite.SQLiteConstraintException;
-import android.database.sqlite.SQLiteDatabase;
-import android.database.sqlite.SQLiteQueryBuilder;
-import android.net.Uri;
-import android.provider.BaseColumns;
-import android.text.TextUtils;
+import java.util.Arrays;
+import java.util.HashMap;
 
 public class KeychainProvider extends ContentProvider {
     // public static final String ACTION_BROADCAST_DATABASE_CHANGE = Constants.PACKAGE_NAME
@@ -63,6 +64,7 @@ public class KeychainProvider extends ContentProvider {
 
     private static final int PUBLIC_KEY_RING_USER_ID = 121;
     private static final int PUBLIC_KEY_RING_USER_ID_BY_ROW_ID = 122;
+    private static final int PUBLIC_KEY_RING_BY_MASTER_KEY_ID_USER_ID = 123;
 
     private static final int SECRET_KEY_RING = 201;
     private static final int SECRET_KEY_RING_BY_ROW_ID = 202;
@@ -78,8 +80,11 @@ public class KeychainProvider extends ContentProvider {
     private static final int SECRET_KEY_RING_USER_ID_BY_ROW_ID = 222;
 
     private static final int API_APPS = 301;
-    private static final int API_APPS_BY_ROW_ID = 302;
     private static final int API_APPS_BY_PACKAGE_NAME = 303;
+    private static final int API_ACCOUNTS = 304;
+    private static final int API_ACCOUNTS_BY_ACCOUNT_NAME = 306;
+
+    private static final int UNIFIED_KEY_RING = 401;
 
     // private static final int DATA_STREAM = 401;
 
@@ -95,6 +100,15 @@ public class KeychainProvider extends ContentProvider {
         String authority = KeychainContract.CONTENT_AUTHORITY;
 
         /**
+         * unified key rings
+         *
+         * <pre>
+         * key_rings
+         * </pre>
+         */
+        matcher.addURI(authority, KeychainContract.BASE_KEY_RINGS, UNIFIED_KEY_RING);
+
+        /**
          * public key rings
          *
          * <pre>
@@ -147,6 +161,7 @@ public class KeychainProvider extends ContentProvider {
          * <pre>
          * key_rings/public/#/user_ids
          * key_rings/public/#/user_ids/#
+         * key_rings/public/master_key_id/#/user_ids
          * </pre>
          */
         matcher.addURI(authority, KeychainContract.BASE_KEY_RINGS + "/"
@@ -155,6 +170,10 @@ public class KeychainProvider extends ContentProvider {
         matcher.addURI(authority, KeychainContract.BASE_KEY_RINGS + "/"
                 + KeychainContract.PATH_PUBLIC + "/#/" + KeychainContract.PATH_USER_IDS + "/#",
                 PUBLIC_KEY_RING_USER_ID_BY_ROW_ID);
+        matcher.addURI(authority, KeychainContract.BASE_KEY_RINGS + "/"
+                + KeychainContract.PATH_PUBLIC + "/"
+                + KeychainContract.PATH_BY_MASTER_KEY_ID + "/*/" + KeychainContract.PATH_USER_IDS,
+                PUBLIC_KEY_RING_BY_MASTER_KEY_ID_USER_ID);
 
         /**
          * secret key rings
@@ -220,11 +239,22 @@ public class KeychainProvider extends ContentProvider {
 
         /**
          * API apps
+         *
+         * <pre>
+         * api_apps
+         * api_apps/_ (package name)
+         *
+         * api_apps/_/accounts
+         * api_apps/_/accounts/_ (account name)
+         * </pre>
          */
         matcher.addURI(authority, KeychainContract.BASE_API_APPS, API_APPS);
-        matcher.addURI(authority, KeychainContract.BASE_API_APPS + "/#", API_APPS_BY_ROW_ID);
-        matcher.addURI(authority, KeychainContract.BASE_API_APPS + "/"
-                + KeychainContract.PATH_BY_PACKAGE_NAME + "/*", API_APPS_BY_PACKAGE_NAME);
+        matcher.addURI(authority, KeychainContract.BASE_API_APPS + "/*", API_APPS_BY_PACKAGE_NAME);
+
+        matcher.addURI(authority, KeychainContract.BASE_API_APPS + "/*/"
+                + KeychainContract.PATH_ACCOUNTS, API_ACCOUNTS);
+        matcher.addURI(authority, KeychainContract.BASE_API_APPS + "/*/"
+                + KeychainContract.PATH_ACCOUNTS + "/*", API_ACCOUNTS_BY_ACCOUNT_NAME);
 
         /**
          * data stream
@@ -238,7 +268,7 @@ public class KeychainProvider extends ContentProvider {
         return matcher;
     }
 
-    private KeychainDatabase mApgDatabase;
+    private KeychainDatabase mKeychainDatabase;
 
     /**
      * {@inheritDoc}
@@ -246,7 +276,7 @@ public class KeychainProvider extends ContentProvider {
     @Override
     public boolean onCreate() {
         mUriMatcher = buildUriMatcher();
-        mApgDatabase = new KeychainDatabase(getContext());
+        mKeychainDatabase = new KeychainDatabase(getContext());
         return true;
     }
 
@@ -282,6 +312,7 @@ public class KeychainProvider extends ContentProvider {
                 return Keys.CONTENT_ITEM_TYPE;
 
             case PUBLIC_KEY_RING_USER_ID:
+            case PUBLIC_KEY_RING_BY_MASTER_KEY_ID_USER_ID:
             case SECRET_KEY_RING_USER_ID:
                 return UserIds.CONTENT_TYPE;
 
@@ -292,10 +323,15 @@ public class KeychainProvider extends ContentProvider {
             case API_APPS:
                 return ApiApps.CONTENT_TYPE;
 
-            case API_APPS_BY_ROW_ID:
             case API_APPS_BY_PACKAGE_NAME:
                 return ApiApps.CONTENT_ITEM_TYPE;
 
+            case API_ACCOUNTS:
+                return ApiAccounts.CONTENT_TYPE;
+
+            case API_ACCOUNTS_BY_ACCOUNT_NAME:
+                return ApiAccounts.CONTENT_ITEM_TYPE;
+
             default:
                 throw new UnsupportedOperationException("Unknown uri: " + uri);
         }
@@ -304,7 +340,7 @@ public class KeychainProvider extends ContentProvider {
     /**
      * Returns type of the query (secret/public)
      *
-     * @param uri
+     * @param match
      * @return
      */
     private int getKeyType(int match) {
@@ -319,6 +355,7 @@ public class KeychainProvider extends ContentProvider {
             case PUBLIC_KEY_RING_KEY:
             case PUBLIC_KEY_RING_KEY_BY_ROW_ID:
             case PUBLIC_KEY_RING_USER_ID:
+            case PUBLIC_KEY_RING_BY_MASTER_KEY_ID_USER_ID:
             case PUBLIC_KEY_RING_USER_ID_BY_ROW_ID:
                 type = KeyTypes.PUBLIC;
                 break;
@@ -356,15 +393,25 @@ public class KeychainProvider extends ContentProvider {
         projectionMap.put(BaseColumns._ID, Tables.KEY_RINGS + "." + BaseColumns._ID);
         projectionMap.put(KeyRingsColumns.KEY_RING_DATA, Tables.KEY_RINGS + "."
                 + KeyRingsColumns.KEY_RING_DATA);
-        projectionMap.put(KeyRingsColumns.MASTER_KEY_ID, Tables.KEY_RINGS + "." + KeyRingsColumns.MASTER_KEY_ID);
+        projectionMap.put(KeyRingsColumns.MASTER_KEY_ID, Tables.KEY_RINGS + "."
+                + KeyRingsColumns.MASTER_KEY_ID);
         // TODO: deprecated master key id
         //projectionMap.put(KeyRingsColumns.MASTER_KEY_ID, Tables.KEYS + "." + KeysColumns.KEY_ID);
 
+        projectionMap.put(KeysColumns.ALGORITHM, Tables.KEYS + "." + KeysColumns.ALGORITHM);
+        projectionMap.put(KeysColumns.KEY_SIZE, Tables.KEYS + "." + KeysColumns.KEY_SIZE);
+        projectionMap.put(KeysColumns.CREATION, Tables.KEYS + "." + KeysColumns.CREATION);
+        projectionMap.put(KeysColumns.EXPIRY, Tables.KEYS + "." + KeysColumns.EXPIRY);
+        projectionMap.put(KeysColumns.KEY_RING_ROW_ID, Tables.KEYS + "." + KeysColumns.KEY_RING_ROW_ID);
         projectionMap.put(KeysColumns.FINGERPRINT, Tables.KEYS + "." + KeysColumns.FINGERPRINT);
         projectionMap.put(KeysColumns.IS_REVOKED, Tables.KEYS + "." + KeysColumns.IS_REVOKED);
 
         projectionMap.put(UserIdsColumns.USER_ID, Tables.USER_IDS + "." + UserIdsColumns.USER_ID);
 
+        // type attribute is special: if there is any grouping, choose secret over public type
+        projectionMap.put(KeyRingsColumns.TYPE,
+                "MAX(" + Tables.KEY_RINGS + "." + KeyRingsColumns.TYPE + ") AS " + KeyRingsColumns.TYPE);
+
         return projectionMap;
     }
 
@@ -395,13 +442,27 @@ public class KeychainProvider extends ContentProvider {
         return projectionMap;
     }
 
+    private HashMap<String, String> getProjectionMapForUserIds() {
+        HashMap<String, String> projectionMap = new HashMap<String, String>();
+
+        projectionMap.put(BaseColumns._ID, Tables.USER_IDS + "." + BaseColumns._ID);
+        projectionMap.put(UserIdsColumns.USER_ID, Tables.USER_IDS + "." + UserIdsColumns.USER_ID);
+        projectionMap.put(UserIdsColumns.RANK, Tables.USER_IDS + "." + UserIdsColumns.RANK);
+        projectionMap.put(KeyRingsColumns.MASTER_KEY_ID, Tables.KEY_RINGS + "."
+                + KeyRingsColumns.MASTER_KEY_ID);
+
+        return projectionMap;
+    }
+
     /**
      * Builds default query for keyRings: KeyRings table is joined with UserIds and Keys
      */
     private SQLiteQueryBuilder buildKeyRingQuery(SQLiteQueryBuilder qb, int match) {
-        // public or secret keyring
-        qb.appendWhere(Tables.KEY_RINGS + "." + KeyRingsColumns.TYPE + " = ");
-        qb.appendWhereEscapeString(Integer.toString(getKeyType(match)));
+        if (match != UNIFIED_KEY_RING) {
+            // public or secret keyring
+            qb.appendWhere(Tables.KEY_RINGS + "." + KeyRingsColumns.TYPE + " = ");
+            qb.appendWhereEscapeString(Integer.toString(getKeyType(match)));
+        }
 
         // join keyrings with keys and userIds
         // Only get user id and key with rank 0 (main user id and main key)
@@ -451,11 +512,26 @@ public class KeychainProvider extends ContentProvider {
         Log.v(Constants.TAG, "query(uri=" + uri + ", proj=" + Arrays.toString(projection) + ")");
 
         SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
-        SQLiteDatabase db = mApgDatabase.getReadableDatabase();
+        SQLiteDatabase db = mKeychainDatabase.getReadableDatabase();
 
         int match = mUriMatcher.match(uri);
 
+        // all query() parameters, for good measure
+        String groupBy = null, having = null;
+
         switch (match) {
+            case UNIFIED_KEY_RING:
+                qb = buildKeyRingQuery(qb, match);
+
+                // GROUP BY so we don't get duplicates
+                groupBy = Tables.KEY_RINGS + "." + KeyRingsColumns.MASTER_KEY_ID;
+
+                if (TextUtils.isEmpty(sortOrder)) {
+                    sortOrder = KeyRings.TYPE + " DESC, " +
+                            Tables.USER_IDS + "." + UserIdsColumns.USER_ID + " ASC";
+                }
+
+                break;
             case PUBLIC_KEY_RING:
             case SECRET_KEY_RING:
                 qb = buildKeyRingQuery(qb, match);
@@ -465,7 +541,6 @@ public class KeychainProvider extends ContentProvider {
                 }
 
                 break;
-
             case PUBLIC_KEY_RING_BY_ROW_ID:
             case SECRET_KEY_RING_BY_ROW_ID:
                 qb = buildKeyRingQuery(qb, match);
@@ -478,7 +553,6 @@ public class KeychainProvider extends ContentProvider {
                 }
 
                 break;
-
             case PUBLIC_KEY_RING_BY_MASTER_KEY_ID:
             case SECRET_KEY_RING_BY_MASTER_KEY_ID:
                 qb = buildKeyRingQuery(qb, match);
@@ -491,7 +565,6 @@ public class KeychainProvider extends ContentProvider {
                 }
 
                 break;
-
             case SECRET_KEY_RING_BY_KEY_ID:
             case PUBLIC_KEY_RING_BY_KEY_ID:
                 qb = buildKeyRingQueryWithSpecificKey(qb, match);
@@ -504,7 +577,6 @@ public class KeychainProvider extends ContentProvider {
                 }
 
                 break;
-
             case SECRET_KEY_RING_BY_EMAILS:
             case PUBLIC_KEY_RING_BY_EMAILS:
                 qb = buildKeyRingQuery(qb, match);
@@ -534,7 +606,6 @@ public class KeychainProvider extends ContentProvider {
                 }
 
                 break;
-
             case SECRET_KEY_RING_BY_LIKE_EMAIL:
             case PUBLIC_KEY_RING_BY_LIKE_EMAIL:
                 qb = buildKeyRingQuery(qb, match);
@@ -550,7 +621,6 @@ public class KeychainProvider extends ContentProvider {
                         + "))");
 
                 break;
-
             case PUBLIC_KEY_RING_KEY:
             case SECRET_KEY_RING_KEY:
                 qb.setTables(Tables.KEYS);
@@ -563,7 +633,6 @@ public class KeychainProvider extends ContentProvider {
                 qb.setProjectionMap(getProjectionMapForKeys());
 
                 break;
-
             case PUBLIC_KEY_RING_KEY_BY_ROW_ID:
             case SECRET_KEY_RING_KEY_BY_ROW_ID:
                 qb.setTables(Tables.KEYS);
@@ -579,7 +648,16 @@ public class KeychainProvider extends ContentProvider {
                 qb.setProjectionMap(getProjectionMapForKeys());
 
                 break;
+            case PUBLIC_KEY_RING_BY_MASTER_KEY_ID_USER_ID:
+                qb.setTables(Tables.USER_IDS + " INNER JOIN " + Tables.KEY_RINGS + " ON " + "("
+                        + Tables.KEY_RINGS + "." + BaseColumns._ID + " = " + Tables.USER_IDS + "."
+                        + KeysColumns.KEY_RING_ROW_ID + " )");
+                qb.appendWhere(Tables.KEY_RINGS + "." + KeyRingsColumns.MASTER_KEY_ID + " = ");
+                qb.appendWhereEscapeString(uri.getPathSegments().get(3));
+
+                qb.setProjectionMap(getProjectionMapForUserIds());
 
+                break;
             case PUBLIC_KEY_RING_USER_ID:
             case SECRET_KEY_RING_USER_ID:
                 qb.setTables(Tables.USER_IDS);
@@ -587,7 +665,6 @@ public class KeychainProvider extends ContentProvider {
                 qb.appendWhereEscapeString(uri.getPathSegments().get(2));
 
                 break;
-
             case PUBLIC_KEY_RING_USER_ID_BY_ROW_ID:
             case SECRET_KEY_RING_USER_ID_BY_ROW_ID:
                 qb.setTables(Tables.USER_IDS);
@@ -598,25 +675,31 @@ public class KeychainProvider extends ContentProvider {
                 qb.appendWhereEscapeString(uri.getLastPathSegment());
 
                 break;
-
             case API_APPS:
                 qb.setTables(Tables.API_APPS);
 
                 break;
-            case API_APPS_BY_ROW_ID:
+            case API_APPS_BY_PACKAGE_NAME:
                 qb.setTables(Tables.API_APPS);
-
-                qb.appendWhere(BaseColumns._ID + " = ");
+                qb.appendWhere(ApiApps.PACKAGE_NAME + " = ");
                 qb.appendWhereEscapeString(uri.getLastPathSegment());
 
                 break;
-            case API_APPS_BY_PACKAGE_NAME:
-                qb.setTables(Tables.API_APPS);
-                qb.appendWhere(ApiApps.PACKAGE_NAME + " = ");
-                qb.appendWhereEscapeString(uri.getPathSegments().get(2));
+            case API_ACCOUNTS:
+                qb.setTables(Tables.API_ACCOUNTS);
+                qb.appendWhere(Tables.API_ACCOUNTS + "." + ApiAccounts.PACKAGE_NAME + " = ");
+                qb.appendWhereEscapeString(uri.getPathSegments().get(1));
 
                 break;
+            case API_ACCOUNTS_BY_ACCOUNT_NAME:
+                qb.setTables(Tables.API_ACCOUNTS);
+                qb.appendWhere(Tables.API_ACCOUNTS + "." + ApiAccounts.PACKAGE_NAME + " = ");
+                qb.appendWhereEscapeString(uri.getPathSegments().get(1));
 
+                qb.appendWhere(" AND " + Tables.API_ACCOUNTS + "." + ApiAccounts.ACCOUNT_NAME + " = ");
+                qb.appendWhereEscapeString(uri.getLastPathSegment());
+
+                break;
             default:
                 throw new IllegalArgumentException("Unknown URI " + uri);
 
@@ -630,7 +713,7 @@ public class KeychainProvider extends ContentProvider {
             orderBy = sortOrder;
         }
 
-        Cursor c = qb.query(db, projection, selection, selectionArgs, null, null, orderBy);
+        Cursor c = qb.query(db, projection, selection, selectionArgs, groupBy, having, orderBy);
 
         // Tell the cursor what uri to watch, so it knows when its source data changes
         c.setNotificationUri(getContext().getContentResolver(), uri);
@@ -653,7 +736,7 @@ public class KeychainProvider extends ContentProvider {
     public Uri insert(Uri uri, ContentValues values) {
         Log.d(Constants.TAG, "insert(uri=" + uri + ", values=" + values.toString() + ")");
 
-        final SQLiteDatabase db = mApgDatabase.getWritableDatabase();
+        final SQLiteDatabase db = mKeychainDatabase.getWritableDatabase();
 
         Uri rowUri = null;
         long rowId = -1;
@@ -673,12 +756,14 @@ public class KeychainProvider extends ContentProvider {
                     values.put(Keys.TYPE, KeyTypes.PUBLIC);
 
                     rowId = db.insertOrThrow(Tables.KEYS, null, values);
+                    // TODO: this is wrong:
                     rowUri = Keys.buildPublicKeysUri(Long.toString(rowId));
                     sendBroadcastDatabaseChange(getKeyType(match), getType(uri));
 
                     break;
                 case PUBLIC_KEY_RING_USER_ID:
                     rowId = db.insertOrThrow(Tables.USER_IDS, null, values);
+                    // TODO: this is wrong:
                     rowUri = UserIds.buildPublicUserIdsUri(Long.toString(rowId));
                     sendBroadcastDatabaseChange(getKeyType(match), getType(uri));
 
@@ -695,18 +780,33 @@ public class KeychainProvider extends ContentProvider {
                     values.put(Keys.TYPE, KeyTypes.SECRET);
 
                     rowId = db.insertOrThrow(Tables.KEYS, null, values);
+                    // TODO: this is wrong:
                     rowUri = Keys.buildSecretKeysUri(Long.toString(rowId));
                     sendBroadcastDatabaseChange(getKeyType(match), getType(uri));
 
                     break;
                 case SECRET_KEY_RING_USER_ID:
                     rowId = db.insertOrThrow(Tables.USER_IDS, null, values);
+                    // TODO: this is wrong:
                     rowUri = UserIds.buildSecretUserIdsUri(Long.toString(rowId));
 
                     break;
                 case API_APPS:
                     rowId = db.insertOrThrow(Tables.API_APPS, null, values);
-                    rowUri = ApiApps.buildIdUri(Long.toString(rowId));
+//                    rowUri = ApiApps.buildIdUri(Long.toString(rowId));
+
+                    break;
+                case API_ACCOUNTS:
+                    // set foreign key automatically based on given uri
+                    // e.g., api_apps/com.example.app/accounts/
+                    String packageName = uri.getPathSegments().get(1);
+                    values.put(ApiAccounts.PACKAGE_NAME, packageName);
+
+                    Log.d(Constants.TAG, "provider packageName: " + packageName);
+
+                    rowId = db.insertOrThrow(Tables.API_ACCOUNTS, null, values);
+                    // TODO: this is wrong:
+//                    rowUri = ApiAccounts.buildIdUri(Long.toString(rowId));
 
                     break;
                 default:
@@ -730,7 +830,7 @@ public class KeychainProvider extends ContentProvider {
     public int delete(Uri uri, String selection, String[] selectionArgs) {
         Log.v(Constants.TAG, "delete(uri=" + uri + ")");
 
-        final SQLiteDatabase db = mApgDatabase.getWritableDatabase();
+        final SQLiteDatabase db = mKeychainDatabase.getWritableDatabase();
 
         int count;
         final int match = mUriMatcher.match(uri);
@@ -766,12 +866,12 @@ public class KeychainProvider extends ContentProvider {
                 count = db.delete(Tables.KEYS, buildDefaultUserIdsSelection(uri, selection),
                         selectionArgs);
                 break;
-            case API_APPS_BY_ROW_ID:
-                count = db.delete(Tables.API_APPS, buildDefaultApiAppsSelection(uri, false, selection),
+            case API_APPS_BY_PACKAGE_NAME:
+                count = db.delete(Tables.API_APPS, buildDefaultApiAppsSelection(uri, selection),
                         selectionArgs);
                 break;
-            case API_APPS_BY_PACKAGE_NAME:
-                count = db.delete(Tables.API_APPS, buildDefaultApiAppsSelection(uri, true, selection),
+            case API_ACCOUNTS_BY_ACCOUNT_NAME:
+                count = db.delete(Tables.API_ACCOUNTS, buildDefaultApiAccountsSelection(uri, selection),
                         selectionArgs);
                 break;
             default:
@@ -791,7 +891,7 @@ public class KeychainProvider extends ContentProvider {
     public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
         Log.v(Constants.TAG, "update(uri=" + uri + ", values=" + values.toString() + ")");
 
-        final SQLiteDatabase db = mApgDatabase.getWritableDatabase();
+        final SQLiteDatabase db = mKeychainDatabase.getWritableDatabase();
 
         String defaultSelection = null;
         int count = 0;
@@ -836,13 +936,13 @@ public class KeychainProvider extends ContentProvider {
                     count = db.update(Tables.USER_IDS, values,
                             buildDefaultUserIdsSelection(uri, selection), selectionArgs);
                     break;
-                case API_APPS_BY_ROW_ID:
-                    count = db.update(Tables.API_APPS, values,
-                            buildDefaultApiAppsSelection(uri, false, selection), selectionArgs);
-                    break;
                 case API_APPS_BY_PACKAGE_NAME:
                     count = db.update(Tables.API_APPS, values,
-                            buildDefaultApiAppsSelection(uri, true, selection), selectionArgs);
+                            buildDefaultApiAppsSelection(uri, selection), selectionArgs);
+                    break;
+                case API_ACCOUNTS_BY_ACCOUNT_NAME:
+                    count = db.update(Tables.API_ACCOUNTS, values,
+                            buildDefaultApiAccountsSelection(uri, selection), selectionArgs);
                     break;
                 default:
                     throw new UnsupportedOperationException("Unknown uri: " + uri);
@@ -862,7 +962,8 @@ public class KeychainProvider extends ContentProvider {
      * Build default selection statement for KeyRings. If no extra selection is specified only build
      * where clause with rowId
      *
-     * @param uri
+     * @param defaultSelection
+     * @param keyType
      * @param selection
      * @return
      */
@@ -940,19 +1041,29 @@ public class KeychainProvider extends ContentProvider {
      * @param selection
      * @return
      */
-    private String buildDefaultApiAppsSelection(Uri uri, boolean packageSelection, String selection) {
-        String lastPathSegment = uri.getLastPathSegment();
+    private String buildDefaultApiAppsSelection(Uri uri, String selection) {
+        String packageName = DatabaseUtils.sqlEscapeString(uri.getLastPathSegment());
 
         String andSelection = "";
         if (!TextUtils.isEmpty(selection)) {
             andSelection = " AND (" + selection + ")";
         }
 
-        if (packageSelection) {
-            return ApiApps.PACKAGE_NAME + "=" + lastPathSegment + andSelection;
-        } else {
-            return BaseColumns._ID + "=" + lastPathSegment + andSelection;
+        return ApiApps.PACKAGE_NAME + "=" + packageName + andSelection;
+    }
+
+    private String buildDefaultApiAccountsSelection(Uri uri, String selection) {
+        String packageName = DatabaseUtils.sqlEscapeString(uri.getPathSegments().get(1));
+        String accountName = DatabaseUtils.sqlEscapeString(uri.getLastPathSegment());
+
+        String andSelection = "";
+        if (!TextUtils.isEmpty(selection)) {
+            andSelection = " AND (" + selection + ")";
         }
+
+        return ApiAccounts.PACKAGE_NAME + "=" + packageName + " AND "
+                + ApiAccounts.ACCOUNT_NAME + "=" + accountName
+                + andSelection;
     }
 
     // @Override
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainServiceBlobContract.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainServiceBlobContract.java
index a879d60a8..701ffc6af 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainServiceBlobContract.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainServiceBlobContract.java
@@ -17,10 +17,9 @@
 
 package org.sufficientlysecure.keychain.provider;
 
-import org.sufficientlysecure.keychain.Constants;
-
 import android.net.Uri;
 import android.provider.BaseColumns;
+import org.sufficientlysecure.keychain.Constants;
 
 public class KeychainServiceBlobContract {
 
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainServiceBlobDatabase.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainServiceBlobDatabase.java
index fcee76fd7..da1bcb2d9 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainServiceBlobDatabase.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainServiceBlobDatabase.java
@@ -22,7 +22,6 @@ import android.content.Context;
 import android.database.sqlite.SQLiteDatabase;
 import android.database.sqlite.SQLiteOpenHelper;
 import android.provider.BaseColumns;
-
 import org.sufficientlysecure.keychain.provider.KeychainServiceBlobContract.BlobsColumns;
 
 public class KeychainServiceBlobDatabase extends SQLiteOpenHelper {
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainServiceBlobProvider.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainServiceBlobProvider.java
index 5693e6de2..aa30e845d 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainServiceBlobProvider.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainServiceBlobProvider.java
@@ -18,11 +18,6 @@
 
 package org.sufficientlysecure.keychain.provider;
 
-import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.provider.KeychainServiceBlobContract.Blobs;
-import org.sufficientlysecure.keychain.provider.KeychainServiceBlobContract.BlobsColumns;
-import org.sufficientlysecure.keychain.util.Log;
-
 import android.content.ContentProvider;
 import android.content.ContentUris;
 import android.content.ContentValues;
@@ -31,7 +26,10 @@ import android.database.sqlite.SQLiteDatabase;
 import android.net.Uri;
 import android.os.ParcelFileDescriptor;
 import android.provider.BaseColumns;
-
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.provider.KeychainServiceBlobContract.Blobs;
+import org.sufficientlysecure.keychain.provider.KeychainServiceBlobContract.BlobsColumns;
+import org.sufficientlysecure.keychain.util.Log;
 
 import java.io.File;
 import java.io.FileNotFoundException;
@@ -40,7 +38,7 @@ import java.util.List;
 import java.util.UUID;
 
 public class KeychainServiceBlobProvider extends ContentProvider {
-    private static final String STORE_PATH = Constants.path.APP_DIR + "/ApgBlobs";
+    private static final String STORE_PATH = Constants.Path.APP_DIR + "/KeychainBlobs";
 
     private KeychainServiceBlobDatabase mBlobDatabase = null;
 
@@ -55,7 +53,9 @@ public class KeychainServiceBlobProvider extends ContentProvider {
         return true;
     }
 
-    /** {@inheritDoc} */
+    /**
+     * {@inheritDoc}
+     */
     @Override
     public Uri insert(Uri uri, ContentValues ignored) {
         // ContentValues are actually ignored, because we want to store a blob with no more
@@ -74,7 +74,9 @@ public class KeychainServiceBlobProvider extends ContentProvider {
         return Uri.withAppendedPath(insertedUri, password);
     }
 
-    /** {@inheritDoc} */
+    /**
+     * {@inheritDoc}
+     */
     @Override
     public ParcelFileDescriptor openFile(Uri uri, String mode) throws SecurityException,
             FileNotFoundException {
@@ -91,9 +93,9 @@ public class KeychainServiceBlobProvider extends ContentProvider {
 
         // get the data
         SQLiteDatabase db = mBlobDatabase.getReadableDatabase();
-        Cursor result = db.query(KeychainServiceBlobDatabase.TABLE, new String[] { BaseColumns._ID },
+        Cursor result = db.query(KeychainServiceBlobDatabase.TABLE, new String[]{BaseColumns._ID},
                 BaseColumns._ID + " = ? and " + BlobsColumns.KEY + " = ?",
-                new String[] { id, key }, null, null, null);
+                new String[]{id, key}, null, null, null);
 
         if (result.getCount() == 0) {
             // either the key is wrong or no id exists
@@ -124,26 +126,34 @@ public class KeychainServiceBlobProvider extends ContentProvider {
         return null;
     }
 
-    /** {@inheritDoc} */
+    /**
+     * {@inheritDoc}
+     */
     @Override
     public String getType(Uri uri) {
         return null;
     }
 
-    /** {@inheritDoc} */
+    /**
+     * {@inheritDoc}
+     */
     @Override
     public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
-            String sortOrder) {
+                        String sortOrder) {
         return null;
     }
 
-    /** {@inheritDoc} */
+    /**
+     * {@inheritDoc}
+     */
     @Override
     public int delete(Uri uri, String selection, String[] selectionArgs) {
         return 0;
     }
 
-    /** {@inheritDoc} */
+    /**
+     * {@inheritDoc}
+     */
     @Override
     public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
         return 0;
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/ProviderHelper.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/ProviderHelper.java
index fef3d391b..b47c4946f 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/ProviderHelper.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/provider/ProviderHelper.java
@@ -17,10 +17,11 @@
 
 package org.sufficientlysecure.keychain.provider;
 
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.Date;
+import android.content.*;
+import android.database.Cursor;
+import android.database.DatabaseUtils;
+import android.net.Uri;
+import android.os.RemoteException;
 
 import org.spongycastle.bcpg.ArmoredOutputStream;
 import org.spongycastle.openpgp.PGPKeyRing;
@@ -38,19 +39,15 @@ import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
 import org.sufficientlysecure.keychain.provider.KeychainContract.Keys;
 import org.sufficientlysecure.keychain.provider.KeychainContract.UserIds;
 import org.sufficientlysecure.keychain.provider.KeychainDatabase.Tables;
-import org.sufficientlysecure.keychain.service.remote.AppSettings;
+import org.sufficientlysecure.keychain.remote.AccountSettings;
+import org.sufficientlysecure.keychain.remote.AppSettings;
 import org.sufficientlysecure.keychain.util.IterableIterator;
 import org.sufficientlysecure.keychain.util.Log;
 
-import android.content.ContentProviderOperation;
-import android.content.ContentResolver;
-import android.content.ContentValues;
-import android.content.Context;
-import android.content.OperationApplicationException;
-import android.database.Cursor;
-import android.database.DatabaseUtils;
-import android.net.Uri;
-import android.os.RemoteException;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Date;
 
 public class ProviderHelper {
 
@@ -87,7 +84,7 @@ public class ProviderHelper {
     }
 
     /**
-     * Retrieves the actual PGPPublicKeyRing object from the database blob based on the maserKeyId
+     * Retrieves the actual PGPPublicKeyRing object from the database blob based on the masterKeyId
      */
     public static PGPPublicKeyRing getPGPPublicKeyRingByMasterKeyId(Context context,
                                                                     long masterKeyId) {
@@ -110,11 +107,8 @@ public class ProviderHelper {
      */
     public static PGPPublicKey getPGPPublicKeyByKeyId(Context context, long keyId) {
         PGPPublicKeyRing keyRing = getPGPPublicKeyRingByKeyId(context, keyId);
-        if (keyRing == null) {
-            return null;
-        }
 
-        return keyRing.getPublicKey(keyId);
+        return (keyRing == null) ? null : keyRing.getPublicKey(keyId);
     }
 
     /**
@@ -149,11 +143,8 @@ public class ProviderHelper {
      */
     public static PGPSecretKey getPGPSecretKeyByKeyId(Context context, long keyId) {
         PGPSecretKeyRing keyRing = getPGPSecretKeyRingByKeyId(context, keyId);
-        if (keyRing == null) {
-            return null;
-        }
 
-        return keyRing.getSecretKey(keyId);
+        return (keyRing == null) ? null : keyRing.getSecretKey(keyId);
     }
 
     /**
@@ -168,7 +159,8 @@ public class ProviderHelper {
 
         // get current _ID of key
         long currentRowId = -1;
-        Cursor oldQuery = context.getContentResolver().query(deleteUri, new String[]{KeyRings._ID}, null, null, null);
+        Cursor oldQuery = context.getContentResolver()
+                .query(deleteUri, new String[]{KeyRings._ID}, null, null, null);
         if (oldQuery != null && oldQuery.moveToFirst()) {
             currentRowId = oldQuery.getLong(0);
         } else {
@@ -184,10 +176,12 @@ public class ProviderHelper {
 
         ContentValues values = new ContentValues();
         // use exactly the same _ID again to replace key in-place.
-        // NOTE: If we would not use the same _ID again, getting back to the ViewKeyActivity would result in Nullpointer,
+        // NOTE: If we would not use the same _ID again,
+        // getting back to the ViewKeyActivity would result in Nullpointer,
         // because the currently loaded key would be gone from the database
-        if (currentRowId != -1)
+        if (currentRowId != -1) {
             values.put(KeyRings._ID, currentRowId);
+        }
         values.put(KeyRings.MASTER_KEY_ID, masterKeyId);
         values.put(KeyRings.KEY_RING_DATA, keyRing.getEncoded());
 
@@ -211,8 +205,11 @@ public class ProviderHelper {
             ++userIdRank;
         }
 
-        for (PGPSignature certification : new IterableIterator<PGPSignature>(masterKey.getSignaturesOfType(PGPSignature.POSITIVE_CERTIFICATION))) {
-            //TODO: how to do this?? we need to verify the signatures again and again when they are displayed...
+        for (PGPSignature certification :
+                new IterableIterator<PGPSignature>(
+                        masterKey.getSignaturesOfType(PGPSignature.POSITIVE_CERTIFICATION))) {
+            // TODO: how to do this??
+            // we need to verify the signatures again and again when they are displayed...
 //            if (certification.verify
 //            operations.add(buildPublicKeyOperations(context, keyRingRowId, key, rank));
         }
@@ -239,7 +236,8 @@ public class ProviderHelper {
 
         // get current _ID of key
         long currentRowId = -1;
-        Cursor oldQuery = context.getContentResolver().query(deleteUri, new String[]{KeyRings._ID}, null, null, null);
+        Cursor oldQuery = context.getContentResolver()
+                .query(deleteUri, new String[]{KeyRings._ID}, null, null, null);
         if (oldQuery != null && oldQuery.moveToFirst()) {
             currentRowId = oldQuery.getLong(0);
         } else {
@@ -255,10 +253,12 @@ public class ProviderHelper {
 
         ContentValues values = new ContentValues();
         // use exactly the same _ID again to replace key in-place.
-        // NOTE: If we would not use the same _ID again, getting back to the ViewKeyActivity would result in Nullpointer,
+        // NOTE: If we would not use the same _ID again,
+        // getting back to the ViewKeyActivity would result in Nullpointer,
         // because the currently loaded key would be gone from the database
-        if (currentRowId != -1)
+        if (currentRowId != -1) {
             values.put(KeyRings._ID, currentRowId);
+        }
         values.put(KeyRings.MASTER_KEY_ID, masterKeyId);
         values.put(KeyRings.KEY_RING_DATA, keyRing.getEncoded());
 
@@ -341,10 +341,10 @@ public class ProviderHelper {
                                                                      long keyRingRowId, PGPSecretKey key, int rank) throws IOException {
         ContentValues values = new ContentValues();
 
-        boolean has_private = true;
+        boolean hasPrivate = true;
         if (key.isMasterKey()) {
-            if (PgpKeyHelper.isSecretKeyPrivateEmpty(key)) {
-                has_private = false;
+            if (key.isPrivateKeyEmpty()) {
+                hasPrivate = false;
             }
         }
 
@@ -352,9 +352,9 @@ public class ProviderHelper {
         values.put(Keys.IS_MASTER_KEY, key.isMasterKey());
         values.put(Keys.ALGORITHM, key.getPublicKey().getAlgorithm());
         values.put(Keys.KEY_SIZE, key.getPublicKey().getBitStrength());
-        values.put(Keys.CAN_CERTIFY, (PgpKeyHelper.isCertificationKey(key) && has_private));
-        values.put(Keys.CAN_SIGN, (PgpKeyHelper.isSigningKey(key) && has_private));
-        values.put(Keys.CAN_ENCRYPT, PgpKeyHelper.isEncryptionKey(key) && has_private);
+        values.put(Keys.CAN_CERTIFY, (PgpKeyHelper.isCertificationKey(key) && hasPrivate));
+        values.put(Keys.CAN_SIGN, (PgpKeyHelper.isSigningKey(key) && hasPrivate));
+        values.put(Keys.CAN_ENCRYPT, PgpKeyHelper.isEncryptionKey(key) && hasPrivate);
         values.put(Keys.IS_REVOKED, key.getPublicKey().isRevoked());
         values.put(Keys.CREATION, PgpKeyHelper.getCreationDate(key).getTime() / 1000);
         Date expiryDate = PgpKeyHelper.getExpiryDate(key);
@@ -411,6 +411,30 @@ public class ProviderHelper {
     }
 
     /**
+     * Private helper method
+     */
+    private static ArrayList<Long> getKeyRingsRowIds(Context context, Uri queryUri) {
+        Cursor cursor = context.getContentResolver().query(queryUri,
+                new String[]{KeyRings._ID}, null, null, null);
+
+        ArrayList<Long> rowIds = new ArrayList<Long>();
+        if (cursor != null) {
+            int idCol = cursor.getColumnIndex(KeyRings._ID);
+            if (cursor.moveToFirst()) {
+                do {
+                    rowIds.add(cursor.getLong(idCol));
+                } while (cursor.moveToNext());
+            }
+        }
+
+        if (cursor != null) {
+            cursor.close();
+        }
+
+        return rowIds;
+    }
+
+    /**
      * Retrieves ids of all SecretKeyRings
      */
     public static ArrayList<Long> getSecretKeyRingsMasterKeyIds(Context context) {
@@ -426,6 +450,22 @@ public class ProviderHelper {
         return getKeyRingsMasterKeyIds(context, queryUri);
     }
 
+    /**
+     * Retrieves ids of all SecretKeyRings
+     */
+    public static ArrayList<Long> getSecretKeyRingsRowIds(Context context) {
+        Uri queryUri = KeyRings.buildSecretKeyRingsUri();
+        return getKeyRingsRowIds(context, queryUri);
+    }
+
+    /**
+     * Retrieves ids of all PublicKeyRings
+     */
+    public static ArrayList<Long> getPublicKeyRingsRowIds(Context context) {
+        Uri queryUri = KeyRings.buildPublicKeyRingsUri();
+        return getKeyRingsRowIds(context, queryUri);
+    }
+
     public static void deletePublicKeyRing(Context context, long rowId) {
         ContentResolver cr = context.getContentResolver();
         cr.delete(KeyRings.buildPublicKeyRingsUri(Long.toString(rowId)), null, null);
@@ -436,6 +476,15 @@ public class ProviderHelper {
         cr.delete(KeyRings.buildSecretKeyRingsUri(Long.toString(rowId)), null, null);
     }
 
+    public static void deleteUnifiedKeyRing(Context context, String masterKeyId, boolean isSecretKey) {
+        ContentResolver cr = context.getContentResolver();
+        cr.delete(KeyRings.buildPublicKeyRingsByMasterKeyIdUri(masterKeyId), null, null);
+        if (isSecretKey) {
+            cr.delete(KeyRings.buildSecretKeyRingsByMasterKeyIdUri(masterKeyId), null, null);
+        }
+
+    }
+
     /**
      * Get master key id of keyring by its row id
      */
@@ -449,13 +498,14 @@ public class ProviderHelper {
      */
     public static boolean getSecretMasterKeyCanCertify(Context context, long keyRingRowId) {
         Uri queryUri = KeyRings.buildSecretKeyRingsUri(String.valueOf(keyRingRowId));
-        return getMasterKeyCanCertify(context, queryUri, keyRingRowId);
+        return getMasterKeyCanCertify(context, queryUri);
     }
 
     /**
      * Private helper method to get master key private empty status of keyring by its row id
      */
-    private static boolean getMasterKeyCanCertify(Context context, Uri queryUri, long keyRingRowId) {
+
+    public static boolean getMasterKeyCanCertify(Context context, Uri queryUri) {
         String[] projection = new String[]{
                 KeyRings.MASTER_KEY_ID,
                 "(SELECT COUNT(sign_keys." + Keys._ID + ") FROM " + Tables.KEYS
@@ -481,6 +531,12 @@ public class ProviderHelper {
         return (masterKeyId > 0);
     }
 
+    public static boolean hasSecretKeyByMasterKeyId(Context context, long masterKeyId) {
+        Uri queryUri = KeyRings.buildSecretKeyRingsByMasterKeyIdUri(Long.toString(masterKeyId));
+        // see if we can get our master key id back from the uri
+        return getMasterKeyId(context, queryUri) == masterKeyId;
+    }
+
     /**
      * Get master key id of keyring by its row id
      */
@@ -512,6 +568,26 @@ public class ProviderHelper {
         return masterKeyId;
     }
 
+    public static long getRowId(Context context, Uri queryUri) {
+        String[] projection = new String[]{KeyRings._ID};
+        Cursor cursor = context.getContentResolver().query(queryUri, projection, null, null, null);
+
+        long rowId = 0;
+        try {
+            if (cursor != null && cursor.moveToFirst()) {
+                int idCol = cursor.getColumnIndexOrThrow(KeyRings._ID);
+
+                rowId = cursor.getLong(idCol);
+            }
+        } finally {
+            if (cursor != null) {
+                cursor.close();
+            }
+        }
+
+        return rowId;
+    }
+
     /**
      * Get fingerprint of key
      */
@@ -733,19 +809,28 @@ public class ProviderHelper {
         ContentValues values = new ContentValues();
         values.put(ApiApps.PACKAGE_NAME, appSettings.getPackageName());
         values.put(ApiApps.PACKAGE_SIGNATURE, appSettings.getPackageSignature());
-        values.put(ApiApps.KEY_ID, appSettings.getKeyId());
-        values.put(ApiApps.COMPRESSION, appSettings.getCompression());
-        values.put(ApiApps.ENCRYPTION_ALGORITHM, appSettings.getEncryptionAlgorithm());
-        values.put(ApiApps.HASH_ALORITHM, appSettings.getHashAlgorithm());
+        return values;
+    }
 
+    private static ContentValues contentValueForApiAccounts(AccountSettings accSettings) {
+        ContentValues values = new ContentValues();
+        values.put(KeychainContract.ApiAccounts.ACCOUNT_NAME, accSettings.getAccountName());
+        values.put(KeychainContract.ApiAccounts.KEY_ID, accSettings.getKeyId());
+        values.put(KeychainContract.ApiAccounts.COMPRESSION, accSettings.getCompression());
+        values.put(KeychainContract.ApiAccounts.ENCRYPTION_ALGORITHM, accSettings.getEncryptionAlgorithm());
+        values.put(KeychainContract.ApiAccounts.HASH_ALORITHM, accSettings.getHashAlgorithm());
         return values;
     }
 
     public static void insertApiApp(Context context, AppSettings appSettings) {
-        context.getContentResolver().insert(ApiApps.CONTENT_URI,
+        context.getContentResolver().insert(KeychainContract.ApiApps.CONTENT_URI,
                 contentValueForApiApps(appSettings));
     }
 
+    public static void insertApiAccount(Context context, Uri uri, AccountSettings accSettings) {
+        context.getContentResolver().insert(uri, contentValueForApiAccounts(accSettings));
+    }
+
     public static void updateApiApp(Context context, AppSettings appSettings, Uri uri) {
         if (context.getContentResolver().update(uri, contentValueForApiApps(appSettings), null,
                 null) <= 0) {
@@ -753,30 +838,59 @@ public class ProviderHelper {
         }
     }
 
+    public static void updateApiAccount(Context context, AccountSettings accSettings, Uri uri) {
+        if (context.getContentResolver().update(uri, contentValueForApiAccounts(accSettings), null,
+                null) <= 0) {
+            throw new RuntimeException();
+        }
+    }
+
+    /**
+     * Must be an uri pointing to an account
+     *
+     * @param context
+     * @param uri
+     * @return
+     */
     public static AppSettings getApiAppSettings(Context context, Uri uri) {
         AppSettings settings = null;
 
         Cursor cur = context.getContentResolver().query(uri, null, null, null, null);
         if (cur != null && cur.moveToFirst()) {
             settings = new AppSettings();
-            settings.setPackageName(cur.getString(cur
-                    .getColumnIndex(KeychainContract.ApiApps.PACKAGE_NAME)));
-            settings.setPackageSignature(cur.getBlob(cur
-                    .getColumnIndex(KeychainContract.ApiApps.PACKAGE_SIGNATURE)));
-            settings.setKeyId(cur.getLong(cur.getColumnIndex(KeychainContract.ApiApps.KEY_ID)));
-            settings.setCompression(cur.getInt(cur
-                    .getColumnIndexOrThrow(KeychainContract.ApiApps.COMPRESSION)));
-            settings.setHashAlgorithm(cur.getInt(cur
-                    .getColumnIndexOrThrow(KeychainContract.ApiApps.HASH_ALORITHM)));
-            settings.setEncryptionAlgorithm(cur.getInt(cur
-                    .getColumnIndexOrThrow(KeychainContract.ApiApps.ENCRYPTION_ALGORITHM)));
+            settings.setPackageName(cur.getString(
+                    cur.getColumnIndex(KeychainContract.ApiApps.PACKAGE_NAME)));
+            settings.setPackageSignature(cur.getBlob(
+                    cur.getColumnIndex(KeychainContract.ApiApps.PACKAGE_SIGNATURE)));
+        }
+
+        return settings;
+    }
+
+    public static AccountSettings getApiAccountSettings(Context context, Uri uri) {
+        AccountSettings settings = null;
+
+        Cursor cur = context.getContentResolver().query(uri, null, null, null, null);
+        if (cur != null && cur.moveToFirst()) {
+            settings = new AccountSettings();
+
+            settings.setAccountName(cur.getString(
+                    cur.getColumnIndex(KeychainContract.ApiAccounts.ACCOUNT_NAME)));
+            settings.setKeyId(cur.getLong(
+                    cur.getColumnIndex(KeychainContract.ApiAccounts.KEY_ID)));
+            settings.setCompression(cur.getInt(
+                    cur.getColumnIndexOrThrow(KeychainContract.ApiAccounts.COMPRESSION)));
+            settings.setHashAlgorithm(cur.getInt(
+                    cur.getColumnIndexOrThrow(KeychainContract.ApiAccounts.HASH_ALORITHM)));
+            settings.setEncryptionAlgorithm(cur.getInt(
+                    cur.getColumnIndexOrThrow(KeychainContract.ApiAccounts.ENCRYPTION_ALGORITHM)));
         }
 
         return settings;
     }
 
     public static byte[] getApiAppSignature(Context context, String packageName) {
-        Uri queryUri = KeychainContract.ApiApps.buildByPackageNameUri(packageName);
+        Uri queryUri = ApiApps.buildByPackageNameUri(packageName);
 
         String[] projection = new String[]{ApiApps.PACKAGE_SIGNATURE};
 
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/remote/AppSettings.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/AccountSettings.java
index 9da4c8392..832cbc752 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/remote/AppSettings.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/AccountSettings.java
@@ -15,80 +15,71 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package org.sufficientlysecure.keychain.service.remote;
+package org.sufficientlysecure.keychain.remote;
 
 import org.spongycastle.bcpg.HashAlgorithmTags;
 import org.spongycastle.openpgp.PGPEncryptedData;
 import org.sufficientlysecure.keychain.Id;
 
-public class AppSettings {
-    private String packageName;
-    private byte[] packageSignature;
-    private long keyId = Id.key.none;
-    private int encryptionAlgorithm;
-    private int hashAlgorithm;
-    private int compression;
+public class AccountSettings {
+    private String mAccountName;
+    private long mKeyId = Id.key.none;
+    private int mEncryptionAlgorithm;
+    private int mHashAlgorithm;
+    private int mCompression;
 
-    public AppSettings() {
+    public AccountSettings() {
 
     }
 
-    public AppSettings(String packageName, byte[] packageSignature) {
+    public AccountSettings(String accountName) {
         super();
-        this.packageName = packageName;
-        this.packageSignature = packageSignature;
-        // defaults:
-        this.encryptionAlgorithm = PGPEncryptedData.AES_256;
-        this.hashAlgorithm = HashAlgorithmTags.SHA512;
-        this.compression = Id.choice.compression.zlib;
-    }
+        this.mAccountName = accountName;
 
-    public String getPackageName() {
-        return packageName;
-    }
-
-    public void setPackageName(String packageName) {
-        this.packageName = packageName;
+        // defaults:
+        this.mEncryptionAlgorithm = PGPEncryptedData.AES_256;
+        this.mHashAlgorithm = HashAlgorithmTags.SHA512;
+        this.mCompression = Id.choice.compression.zlib;
     }
 
-    public byte[] getPackageSignature() {
-        return packageSignature;
+    public String getAccountName() {
+        return mAccountName;
     }
 
-    public void setPackageSignature(byte[] packageSignature) {
-        this.packageSignature = packageSignature;
+    public void setAccountName(String mAccountName) {
+        this.mAccountName = mAccountName;
     }
 
     public long getKeyId() {
-        return keyId;
+        return mKeyId;
     }
 
     public void setKeyId(long scretKeyId) {
-        this.keyId = scretKeyId;
+        this.mKeyId = scretKeyId;
     }
 
     public int getEncryptionAlgorithm() {
-        return encryptionAlgorithm;
+        return mEncryptionAlgorithm;
     }
 
     public void setEncryptionAlgorithm(int encryptionAlgorithm) {
-        this.encryptionAlgorithm = encryptionAlgorithm;
+        this.mEncryptionAlgorithm = encryptionAlgorithm;
     }
 
     public int getHashAlgorithm() {
-        return hashAlgorithm;
+        return mHashAlgorithm;
     }
 
     public void setHashAlgorithm(int hashAlgorithm) {
-        this.hashAlgorithm = hashAlgorithm;
+        this.mHashAlgorithm = hashAlgorithm;
     }
 
     public int getCompression() {
-        return compression;
+        return mCompression;
     }
 
     public void setCompression(int compression) {
-        this.compression = compression;
+        this.mCompression = compression;
     }
 
 }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/AppSettings.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/AppSettings.java
new file mode 100644
index 000000000..6c7e51bf0
--- /dev/null
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/AppSettings.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2013 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.sufficientlysecure.keychain.remote;
+
+import org.spongycastle.bcpg.HashAlgorithmTags;
+import org.spongycastle.openpgp.PGPEncryptedData;
+import org.sufficientlysecure.keychain.Id;
+
+public class AppSettings {
+    private String mPackageName;
+    private byte[] mPackageSignature;
+
+    public AppSettings() {
+
+    }
+
+    public AppSettings(String packageName, byte[] packageSignature) {
+        super();
+        this.mPackageName = packageName;
+        this.mPackageSignature = packageSignature;
+    }
+
+    public String getPackageName() {
+        return mPackageName;
+    }
+
+    public void setPackageName(String packageName) {
+        this.mPackageName = packageName;
+    }
+
+    public byte[] getPackageSignature() {
+        return mPackageSignature;
+    }
+
+    public void setPackageSignature(byte[] packageSignature) {
+        this.mPackageSignature = packageSignature;
+    }
+
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/remote/OpenPgpService.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/OpenPgpService.java
index f697faa6e..ad0c658ad 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/remote/OpenPgpService.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/OpenPgpService.java
@@ -15,7 +15,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package org.sufficientlysecure.keychain.service.remote;
+package org.sufficientlysecure.keychain.remote;
 
 import android.app.PendingIntent;
 import android.content.Intent;
@@ -37,6 +37,7 @@ import org.sufficientlysecure.keychain.pgp.PgpSignEncrypt;
 import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
 import org.sufficientlysecure.keychain.provider.KeychainContract;
 import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.remote.ui.RemoteServiceActivity;
 import org.sufficientlysecure.keychain.service.PassphraseCacheService;
 import org.sufficientlysecure.keychain.util.InputData;
 import org.sufficientlysecure.keychain.util.Log;
@@ -47,10 +48,6 @@ import java.util.ArrayList;
 
 public class OpenPgpService extends RemoteService {
 
-    private static final int PRIVATE_REQUEST_CODE_PASSPHRASE = 551;
-    private static final int PRIVATE_REQUEST_CODE_USER_IDS = 552;
-    private static final int PRIVATE_REQUEST_CODE_GET_KEYS = 553;
-
     /**
      * Search database for key ids based on emails.
      *
@@ -100,7 +97,9 @@ public class OpenPgpService extends RemoteService {
             intent.putExtra(RemoteServiceActivity.EXTRA_DUBLICATE_USER_IDS, dublicateUserIds);
             intent.putExtra(RemoteServiceActivity.EXTRA_DATA, data);
 
-            PendingIntent pi = PendingIntent.getActivity(getBaseContext(), PRIVATE_REQUEST_CODE_USER_IDS, intent, 0);
+            PendingIntent pi = PendingIntent.getActivity(getBaseContext(), 0,
+                    intent,
+                    PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_ONE_SHOT);
 
             // return PendingIntent to be executed by client
             Intent result = new Intent();
@@ -126,7 +125,9 @@ public class OpenPgpService extends RemoteService {
         intent.putExtra(RemoteServiceActivity.EXTRA_SECRET_KEY_ID, keyId);
         // pass params through to activity that it can be returned again later to repeat pgp operation
         intent.putExtra(RemoteServiceActivity.EXTRA_DATA, data);
-        PendingIntent pi = PendingIntent.getActivity(getBaseContext(), PRIVATE_REQUEST_CODE_PASSPHRASE, intent, 0);
+        PendingIntent pi = PendingIntent.getActivity(getBaseContext(), 0,
+                intent,
+                PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_ONE_SHOT);
 
         // return PendingIntent to be executed by client
         Intent result = new Intent();
@@ -136,7 +137,7 @@ public class OpenPgpService extends RemoteService {
     }
 
     private Intent signImpl(Intent data, ParcelFileDescriptor input,
-                            ParcelFileDescriptor output, AppSettings appSettings) {
+                            ParcelFileDescriptor output, AccountSettings accSettings) {
         try {
             boolean asciiArmor = data.getBooleanExtra(OpenPgpApi.EXTRA_REQUEST_ASCII_ARMOR, true);
 
@@ -145,11 +146,11 @@ public class OpenPgpService extends RemoteService {
             if (data.hasExtra(OpenPgpApi.EXTRA_PASSPHRASE)) {
                 passphrase = data.getStringExtra(OpenPgpApi.EXTRA_PASSPHRASE);
             } else {
-                passphrase = PassphraseCacheService.getCachedPassphrase(getContext(), appSettings.getKeyId());
+                passphrase = PassphraseCacheService.getCachedPassphrase(getContext(), accSettings.getKeyId());
             }
             if (passphrase == null) {
                 // get PendingIntent for passphrase input, add it to given params and return to client
-                Intent passphraseBundle = getPassphraseBundleIntent(data, appSettings.getKeyId());
+                Intent passphraseBundle = getPassphraseBundleIntent(data, accSettings.getKeyId());
                 return passphraseBundle;
             }
 
@@ -163,9 +164,9 @@ public class OpenPgpService extends RemoteService {
                 // sign-only
                 PgpSignEncrypt.Builder builder = new PgpSignEncrypt.Builder(getContext(), inputData, os);
                 builder.enableAsciiArmorOutput(asciiArmor)
-                        .signatureHashAlgorithm(appSettings.getHashAlgorithm())
+                        .signatureHashAlgorithm(accSettings.getHashAlgorithm())
                         .signatureForceV3(false)
-                        .signatureKeyId(appSettings.getKeyId())
+                        .signatureKeyId(accSettings.getKeyId())
                         .signaturePassphrase(passphrase);
                 builder.build().execute();
             } finally {
@@ -186,7 +187,7 @@ public class OpenPgpService extends RemoteService {
     }
 
     private Intent encryptAndSignImpl(Intent data, ParcelFileDescriptor input,
-                                      ParcelFileDescriptor output, AppSettings appSettings, boolean sign) {
+                                      ParcelFileDescriptor output, AccountSettings accSettings, boolean sign) {
         try {
             boolean asciiArmor = data.getBooleanExtra(OpenPgpApi.EXTRA_REQUEST_ASCII_ARMOR, true);
 
@@ -208,14 +209,15 @@ public class OpenPgpService extends RemoteService {
             } else {
                 Intent result = new Intent();
                 result.putExtra(OpenPgpApi.RESULT_ERROR,
-                        new OpenPgpError(OpenPgpError.GENERIC_ERROR, "Missing parameter user_ids or key_ids!"));
+                        new OpenPgpError(OpenPgpError.GENERIC_ERROR,
+                                "Missing parameter user_ids or key_ids!"));
                 result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_ERROR);
                 return result;
             }
 
             // add own key for encryption
             keyIds = Arrays.copyOf(keyIds, keyIds.length + 1);
-            keyIds[keyIds.length - 1] = appSettings.getKeyId();
+            keyIds[keyIds.length - 1] = accSettings.getKeyId();
 
             // build InputData and write into OutputStream
             // Get Input- and OutputStream from ParcelFileDescriptor
@@ -227,8 +229,8 @@ public class OpenPgpService extends RemoteService {
 
                 PgpSignEncrypt.Builder builder = new PgpSignEncrypt.Builder(getContext(), inputData, os);
                 builder.enableAsciiArmorOutput(asciiArmor)
-                        .compressionId(appSettings.getCompression())
-                        .symmetricEncryptionAlgorithm(appSettings.getEncryptionAlgorithm())
+                        .compressionId(accSettings.getCompression())
+                        .symmetricEncryptionAlgorithm(accSettings.getEncryptionAlgorithm())
                         .encryptionKeyIds(keyIds);
 
                 if (sign) {
@@ -237,18 +239,18 @@ public class OpenPgpService extends RemoteService {
                         passphrase = data.getStringExtra(OpenPgpApi.EXTRA_PASSPHRASE);
                     } else {
                         passphrase = PassphraseCacheService.getCachedPassphrase(getContext(),
-                                appSettings.getKeyId());
+                                accSettings.getKeyId());
                     }
                     if (passphrase == null) {
                         // get PendingIntent for passphrase input, add it to given params and return to client
-                        Intent passphraseBundle = getPassphraseBundleIntent(data, appSettings.getKeyId());
+                        Intent passphraseBundle = getPassphraseBundleIntent(data, accSettings.getKeyId());
                         return passphraseBundle;
                     }
 
                     // sign and encrypt
-                    builder.signatureHashAlgorithm(appSettings.getHashAlgorithm())
+                    builder.signatureHashAlgorithm(accSettings.getHashAlgorithm())
                             .signatureForceV3(false)
-                            .signatureKeyId(appSettings.getKeyId())
+                            .signatureKeyId(accSettings.getKeyId())
                             .signaturePassphrase(passphrase);
                 } else {
                     // encrypt only
@@ -274,7 +276,7 @@ public class OpenPgpService extends RemoteService {
     }
 
     private Intent decryptAndVerifyImpl(Intent data, ParcelFileDescriptor input,
-                                        ParcelFileDescriptor output, AppSettings appSettings) {
+                                        ParcelFileDescriptor output, AccountSettings accSettings) {
         try {
             // Get Input- and OutputStream from ParcelFileDescriptor
             InputStream is = new ParcelFileDescriptor.AutoCloseInputStream(input);
@@ -289,7 +291,8 @@ public class OpenPgpService extends RemoteService {
 
                 PgpDecryptVerify.Builder builder = new PgpDecryptVerify.Builder(this, inputData, os);
                 builder.assumeSymmetric(false) // no support for symmetric encryption
-                        .enforcedKeyId(appSettings.getKeyId()) // allow only the private key for this app for decryption
+                        // allow only the private key for this app for decryption
+                        .enforcedKeyId(accSettings.getKeyId())
                         .passphrase(passphrase);
 
                 // TODO: currently does not support binary signed-only content
@@ -297,7 +300,7 @@ public class OpenPgpService extends RemoteService {
 
                 if (decryptVerifyResult.isKeyPassphraseNeeded()) {
                     // get PendingIntent for passphrase input, add it to given params and return to client
-                    Intent passphraseBundle = getPassphraseBundleIntent(data, appSettings.getKeyId());
+                    Intent passphraseBundle = getPassphraseBundleIntent(data, accSettings.getKeyId());
                     return passphraseBundle;
                 } else if (decryptVerifyResult.isSymmetricPassphraseNeeded()) {
                     throw new PgpGeneralException("Decryption of symmetric content not supported by API!");
@@ -314,8 +317,9 @@ public class OpenPgpService extends RemoteService {
                         intent.putExtra(RemoteServiceActivity.EXTRA_ERROR_MESSAGE, "todo");
                         intent.putExtra(RemoteServiceActivity.EXTRA_DATA, data);
 
-                        PendingIntent pi = PendingIntent.getActivity(getBaseContext(),
-                                PRIVATE_REQUEST_CODE_GET_KEYS, intent, 0);
+                        PendingIntent pi = PendingIntent.getActivity(getBaseContext(), 0,
+                                intent,
+                                PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_ONE_SHOT);
 
                         result.putExtra(OpenPgpApi.RESULT_INTENT, pi);
                     }
@@ -354,8 +358,9 @@ public class OpenPgpService extends RemoteService {
                 intent.putExtra(RemoteServiceActivity.EXTRA_ERROR_MESSAGE, "todo");
                 intent.putExtra(RemoteServiceActivity.EXTRA_DATA, data);
 
-                PendingIntent pi = PendingIntent.getActivity(getBaseContext(),
-                        PRIVATE_REQUEST_CODE_GET_KEYS, intent, 0);
+                PendingIntent pi = PendingIntent.getActivity(getBaseContext(), 0,
+                        intent,
+                        PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_ONE_SHOT);
 
                 result.putExtra(OpenPgpApi.RESULT_INTENT, pi);
                 result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_USER_INTERACTION_REQUIRED);
@@ -403,7 +408,8 @@ public class OpenPgpService extends RemoteService {
         // version code is required and needs to correspond to version code of service!
         if (data.getIntExtra(OpenPgpApi.EXTRA_API_VERSION, -1) != OpenPgpApi.API_VERSION) {
             Intent result = new Intent();
-            OpenPgpError error = new OpenPgpError(OpenPgpError.INCOMPATIBLE_API_VERSIONS, "Incompatible API versions!");
+            OpenPgpError error = new OpenPgpError
+                    (OpenPgpError.INCOMPATIBLE_API_VERSIONS, "Incompatible API versions!");
             result.putExtra(OpenPgpApi.RESULT_ERROR, error);
             result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_ERROR);
             return result;
@@ -428,17 +434,26 @@ public class OpenPgpService extends RemoteService {
                 return errorResult;
             }
 
-            final AppSettings appSettings = getAppSettings();
+            String accName;
+            if (data.getStringExtra(OpenPgpApi.EXTRA_ACCOUNT_NAME) != null) {
+                accName = data.getStringExtra(OpenPgpApi.EXTRA_ACCOUNT_NAME);
+            } else {
+                accName = "default";
+            }
+            final AccountSettings accSettings = getAccSettings(accName);
+            if (accSettings == null) {
+                return getCreateAccountIntent(data, accName);
+            }
 
             String action = data.getAction();
             if (OpenPgpApi.ACTION_SIGN.equals(action)) {
-                return signImpl(data, input, output, appSettings);
+                return signImpl(data, input, output, accSettings);
             } else if (OpenPgpApi.ACTION_ENCRYPT.equals(action)) {
-                return encryptAndSignImpl(data, input, output, appSettings, false);
+                return encryptAndSignImpl(data, input, output, accSettings, false);
             } else if (OpenPgpApi.ACTION_SIGN_AND_ENCRYPT.equals(action)) {
-                return encryptAndSignImpl(data, input, output, appSettings, true);
+                return encryptAndSignImpl(data, input, output, accSettings, true);
             } else if (OpenPgpApi.ACTION_DECRYPT_VERIFY.equals(action)) {
-                return decryptAndVerifyImpl(data, input, output, appSettings);
+                return decryptAndVerifyImpl(data, input, output, accSettings);
             } else if (OpenPgpApi.ACTION_GET_KEY.equals(action)) {
                 return getKeyImpl(data);
             } else if (OpenPgpApi.ACTION_GET_KEY_IDS.equals(action)) {
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/remote/RemoteService.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/RemoteService.java
index cb556be39..8cea3cd21 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/remote/RemoteService.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/RemoteService.java
@@ -15,18 +15,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package org.sufficientlysecure.keychain.service.remote;
-
-import java.util.ArrayList;
-import java.util.Arrays;
-
-import org.openintents.openpgp.OpenPgpError;
-import org.openintents.openpgp.util.OpenPgpApi;
-import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.provider.KeychainContract;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
-import org.sufficientlysecure.keychain.util.Log;
+package org.sufficientlysecure.keychain.remote;
 
 import android.app.PendingIntent;
 import android.app.Service;
@@ -39,16 +28,24 @@ import android.content.pm.Signature;
 import android.net.Uri;
 import android.os.Binder;
 
+import org.openintents.openpgp.OpenPgpError;
+import org.openintents.openpgp.util.OpenPgpApi;
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.provider.KeychainContract;
+import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.remote.ui.RemoteServiceActivity;
+import org.sufficientlysecure.keychain.util.Log;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+
 /**
  * Abstract service class for remote APIs that handle app registration and user input.
  */
 public abstract class RemoteService extends Service {
     Context mContext;
 
-    private static final int PRIVATE_REQUEST_CODE_REGISTER = 651;
-    private static final int PRIVATE_REQUEST_CODE_ERROR = 652;
-
-
     public Context getContext() {
         return mContext;
     }
@@ -56,13 +53,10 @@ public abstract class RemoteService extends Service {
     protected Intent isAllowed(Intent data) {
         try {
             if (isCallerAllowed(false)) {
-
                 return null;
             } else {
-                String[] callingPackages = getPackageManager().getPackagesForUid(
-                        Binder.getCallingUid());
-                // TODO: currently simply uses first entry
-                String packageName = callingPackages[0];
+                String packageName = getCurrentCallingPackage();
+                Log.d(Constants.TAG, "isAllowed packageName: " + packageName);
 
                 byte[] packageSignature;
                 try {
@@ -84,7 +78,9 @@ public abstract class RemoteService extends Service {
                 intent.putExtra(RemoteServiceActivity.EXTRA_PACKAGE_SIGNATURE, packageSignature);
                 intent.putExtra(RemoteServiceActivity.EXTRA_DATA, data);
 
-                PendingIntent pi = PendingIntent.getActivity(getBaseContext(), PRIVATE_REQUEST_CODE_REGISTER, intent, 0);
+                PendingIntent pi = PendingIntent.getActivity(getBaseContext(), 0,
+                        intent,
+                        PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_ONE_SHOT);
 
                 // return PendingIntent to be executed by client
                 Intent result = new Intent();
@@ -98,10 +94,13 @@ public abstract class RemoteService extends Service {
 
             Intent intent = new Intent(getBaseContext(), RemoteServiceActivity.class);
             intent.setAction(RemoteServiceActivity.ACTION_ERROR_MESSAGE);
-            intent.putExtra(RemoteServiceActivity.EXTRA_ERROR_MESSAGE, getString(R.string.api_error_wrong_signature));
+            intent.putExtra(RemoteServiceActivity.EXTRA_ERROR_MESSAGE,
+                    getString(R.string.api_error_wrong_signature));
             intent.putExtra(RemoteServiceActivity.EXTRA_DATA, data);
 
-            PendingIntent pi = PendingIntent.getActivity(getBaseContext(), PRIVATE_REQUEST_CODE_ERROR, intent, 0);
+            PendingIntent pi = PendingIntent.getActivity(getBaseContext(), 0,
+                    intent,
+                    PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_ONE_SHOT);
 
             // return PendingIntent to be executed by client
             Intent result = new Intent();
@@ -123,26 +122,57 @@ public abstract class RemoteService extends Service {
     }
 
     /**
-     * Retrieves AppSettings from database for the application calling this remote service
+     * Returns package name associated with the UID, which is assigned to the process that sent you the
+     * current transaction that is being processed :)
      *
-     * @return
+     * @return package name
      */
-    protected AppSettings getAppSettings() {
+    private String getCurrentCallingPackage() {
+        // TODO:
+        // callingPackages contains more than one entry when sharedUserId has been used...
         String[] callingPackages = getPackageManager().getPackagesForUid(Binder.getCallingUid());
+        String currentPkg = callingPackages[0];
+        Log.d(Constants.TAG, "currentPkg: " + currentPkg);
 
-        // get app settings for this package
-        for (int i = 0; i < callingPackages.length; i++) {
-            String currentPkg = callingPackages[i];
+        return currentPkg;
+    }
+
+    /**
+     * Retrieves AccountSettings from database for the application calling this remote service
+     *
+     * @return
+     */
+    protected AccountSettings getAccSettings(String accountName) {
+        String currentPkg = getCurrentCallingPackage();
+        Log.d(Constants.TAG, "accountName: " + accountName);
 
-            Uri uri = KeychainContract.ApiApps.buildByPackageNameUri(currentPkg);
+        Uri uri = KeychainContract.ApiAccounts.buildByPackageAndAccountUri(currentPkg, accountName);
 
-            AppSettings settings = ProviderHelper.getApiAppSettings(this, uri);
+        AccountSettings settings = ProviderHelper.getApiAccountSettings(this, uri);
 
-            if (settings != null)
-                return settings;
-        }
+        return settings; // can be null!
+    }
+
+    protected Intent getCreateAccountIntent(Intent data, String accountName) {
+        String packageName = getCurrentCallingPackage();
+        Log.d(Constants.TAG, "accountName: " + accountName);
+
+        Intent intent = new Intent(getBaseContext(), RemoteServiceActivity.class);
+        intent.setAction(RemoteServiceActivity.ACTION_CREATE_ACCOUNT);
+        intent.putExtra(RemoteServiceActivity.EXTRA_PACKAGE_NAME, packageName);
+        intent.putExtra(RemoteServiceActivity.EXTRA_ACC_NAME, accountName);
+        intent.putExtra(RemoteServiceActivity.EXTRA_DATA, data);
+
+        PendingIntent pi = PendingIntent.getActivity(getBaseContext(), 0,
+                intent,
+                PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_ONE_SHOT);
+
+        // return PendingIntent to be executed by client
+        Intent result = new Intent();
+        result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_USER_INTERACTION_REQUIRED);
+        result.putExtra(OpenPgpApi.RESULT_INTENT, pi);
 
-        return null;
+        return result;
     }
 
     /**
@@ -177,7 +207,7 @@ public abstract class RemoteService extends Service {
             }
         }
 
-        Log.d(Constants.TAG, "Caller is NOT allowed!");
+        Log.d(Constants.TAG, "Uid is NOT allowed!");
         return false;
     }
 
@@ -189,7 +219,7 @@ public abstract class RemoteService extends Service {
      * @throws WrongPackageSignatureException
      */
     private boolean isPackageAllowed(String packageName) throws WrongPackageSignatureException {
-        Log.d(Constants.TAG, "packageName: " + packageName);
+        Log.d(Constants.TAG, "isPackageAllowed packageName: " + packageName);
 
         ArrayList<String> allowedPkgs = ProviderHelper.getRegisteredApiApps(this);
         Log.d(Constants.TAG, "allowed: " + allowedPkgs);
@@ -217,6 +247,7 @@ public abstract class RemoteService extends Service {
             }
         }
 
+        Log.d(Constants.TAG, "Package is NOT allowed! packageName: " + packageName);
         return false;
     }
 
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/WrongPackageSignatureException.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/WrongPackageSignatureException.java
new file mode 100644
index 000000000..6f44a65e9
--- /dev/null
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/WrongPackageSignatureException.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2013 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.sufficientlysecure.keychain.remote;
+
+public class WrongPackageSignatureException extends Exception {
+
+    private static final long serialVersionUID = -8294642703122196028L;
+
+    public WrongPackageSignatureException(String message) {
+        super(message);
+    }
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/remote/AppSettingsActivity.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AccountSettingsActivity.java
index a7afc9698..671a3e0aa 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/remote/AppSettingsActivity.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AccountSettingsActivity.java
@@ -15,13 +15,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package org.sufficientlysecure.keychain.service.remote;
-
-import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.helper.ActionBarHelper;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
-import org.sufficientlysecure.keychain.util.Log;
+package org.sufficientlysecure.keychain.remote.ui;
 
 import android.content.Intent;
 import android.net.Uri;
@@ -31,17 +25,25 @@ import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
 
-public class AppSettingsActivity extends ActionBarActivity {
-    private Uri mAppUri;
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.helper.ActionBarHelper;
+import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.remote.AccountSettings;
+import org.sufficientlysecure.keychain.util.Log;
+
+public class AccountSettingsActivity extends ActionBarActivity {
+    private Uri mAccountUri;
 
-    private AppSettingsFragment mSettingsFragment;
+    private AccountSettingsFragment mAccountSettingsFragment;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
         // Inflate a "Done" custom action bar
-        ActionBarHelper.setDoneView(getSupportActionBar(), R.string.api_settings_save,
+        ActionBarHelper.setOneButtonView(getSupportActionBar(),
+                R.string.api_settings_save, R.drawable.ic_action_done,
                 new View.OnClickListener() {
                     @Override
                     public void onClick(View v) {
@@ -50,57 +52,58 @@ public class AppSettingsActivity extends ActionBarActivity {
                     }
                 });
 
-        setContentView(R.layout.api_app_settings_activity);
+        setContentView(R.layout.api_account_settings_activity);
 
-        mSettingsFragment = (AppSettingsFragment) getSupportFragmentManager().findFragmentById(
-                R.id.api_app_settings_fragment);
+        mAccountSettingsFragment = (AccountSettingsFragment) getSupportFragmentManager().findFragmentById(
+                R.id.api_account_settings_fragment);
 
         Intent intent = getIntent();
-        mAppUri = intent.getData();
-        if (mAppUri == null) {
+        mAccountUri = intent.getData();
+        if (mAccountUri == null) {
             Log.e(Constants.TAG, "Intent data missing. Should be Uri of app!");
             finish();
             return;
         } else {
-            Log.d(Constants.TAG, "uri: " + mAppUri);
-            loadData(mAppUri);
+            Log.d(Constants.TAG, "uri: " + mAccountUri);
+            loadData(savedInstanceState, mAccountUri);
         }
     }
 
     @Override
     public boolean onCreateOptionsMenu(Menu menu) {
         super.onCreateOptionsMenu(menu);
-        getMenuInflater().inflate(R.menu.api_app_settings, menu);
+        getMenuInflater().inflate(R.menu.api_account_settings, menu);
         return true;
     }
 
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {
-        case R.id.menu_api_settings_revoke:
-            revokeAccess();
-            return true;
-        case R.id.menu_api_settings_cancel:
-            finish();
-            return true;
+            case R.id.menu_account_settings_delete:
+                deleteAccount();
+                return true;
+            case R.id.menu_account_settings_cancel:
+                finish();
+                return true;
         }
         return super.onOptionsItemSelected(item);
     }
 
-    private void loadData(Uri appUri) {
-        AppSettings settings = ProviderHelper.getApiAppSettings(this, appUri);
-        mSettingsFragment.setAppSettings(settings);
+    private void loadData(Bundle savedInstanceState, Uri accountUri) {
+        // TODO: load this also like other fragment with newInstance arguments?
+        AccountSettings settings = ProviderHelper.getApiAccountSettings(this, accountUri);
+        mAccountSettingsFragment.setAccSettings(settings);
     }
 
-    private void revokeAccess() {
-        if (getContentResolver().delete(mAppUri, null, null) <= 0) {
+    private void deleteAccount() {
+        if (getContentResolver().delete(mAccountUri, null, null) <= 0) {
             throw new RuntimeException();
         }
         finish();
     }
 
     private void save() {
-        ProviderHelper.updateApiApp(this, mSettingsFragment.getAppSettings(), mAppUri);
+        ProviderHelper.updateApiAccount(this, mAccountSettingsFragment.getAccSettings(), mAccountUri);
 
         finish();
     }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AccountSettingsFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AccountSettingsFragment.java
new file mode 100644
index 000000000..0931e6e31
--- /dev/null
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AccountSettingsFragment.java
@@ -0,0 +1,176 @@
+/*
+ * Copyright (C) 2013-2014 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.sufficientlysecure.keychain.remote.ui;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.AdapterView;
+import android.widget.AdapterView.OnItemSelectedListener;
+import android.widget.Spinner;
+import android.widget.TextView;
+
+import com.beardedhen.androidbootstrap.BootstrapButton;
+
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.remote.AccountSettings;
+import org.sufficientlysecure.keychain.ui.EditKeyActivity;
+import org.sufficientlysecure.keychain.ui.SelectSecretKeyLayoutFragment;
+import org.sufficientlysecure.keychain.ui.adapter.KeyValueSpinnerAdapter;
+import org.sufficientlysecure.keychain.util.AlgorithmNames;
+
+public class AccountSettingsFragment extends Fragment implements
+        SelectSecretKeyLayoutFragment.SelectSecretKeyCallback {
+
+    // model
+    private AccountSettings mAccSettings;
+
+    // view
+    private TextView mAccNameView;
+    private Spinner mEncryptionAlgorithm;
+    private Spinner mHashAlgorithm;
+    private Spinner mCompression;
+
+    private SelectSecretKeyLayoutFragment mSelectKeyFragment;
+    private BootstrapButton mCreateKeyButton;
+
+    KeyValueSpinnerAdapter mEncryptionAdapter;
+    KeyValueSpinnerAdapter mHashAdapter;
+    KeyValueSpinnerAdapter mCompressionAdapter;
+
+    public AccountSettings getAccSettings() {
+        return mAccSettings;
+    }
+
+    public void setAccSettings(AccountSettings accountSettings) {
+        this.mAccSettings = accountSettings;
+
+        mAccNameView.setText(accountSettings.getAccountName());
+        mSelectKeyFragment.selectKey(accountSettings.getKeyId());
+        mEncryptionAlgorithm.setSelection(mEncryptionAdapter.getPosition(accountSettings
+                .getEncryptionAlgorithm()));
+        mHashAlgorithm.setSelection(mHashAdapter.getPosition(accountSettings.getHashAlgorithm()));
+        mCompression.setSelection(mCompressionAdapter.getPosition(accountSettings.getCompression()));
+    }
+
+    /**
+     * Inflate the layout for this fragment
+     */
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        View view = inflater.inflate(R.layout.api_account_settings_fragment, container, false);
+        initView(view);
+        return view;
+    }
+
+    /**
+     * Set error String on key selection
+     *
+     * @param error
+     */
+    public void setErrorOnSelectKeyFragment(String error) {
+        mSelectKeyFragment.setError(error);
+    }
+
+    private void initView(View view) {
+        mSelectKeyFragment = (SelectSecretKeyLayoutFragment) getFragmentManager().findFragmentById(
+                R.id.api_account_settings_select_key_fragment);
+        mSelectKeyFragment.setCallback(this);
+
+        mAccNameView = (TextView) view.findViewById(R.id.api_account_settings_acc_name);
+        mEncryptionAlgorithm = (Spinner) view
+                .findViewById(R.id.api_account_settings_encryption_algorithm);
+        mHashAlgorithm = (Spinner) view.findViewById(R.id.api_account_settings_hash_algorithm);
+        mCompression = (Spinner) view.findViewById(R.id.api_account_settings_compression);
+        mCreateKeyButton = (BootstrapButton) view.findViewById(R.id.api_account_settings_create_key);
+
+        mCreateKeyButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                createKey();
+            }
+        });
+
+        AlgorithmNames algorithmNames = new AlgorithmNames(getActivity());
+
+        mEncryptionAdapter = new KeyValueSpinnerAdapter(getActivity(),
+                algorithmNames.getEncryptionNames());
+        mEncryptionAlgorithm.setAdapter(mEncryptionAdapter);
+        mEncryptionAlgorithm.setOnItemSelectedListener(new OnItemSelectedListener() {
+
+            @Override
+            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
+                mAccSettings.setEncryptionAlgorithm((int) id);
+            }
+
+            @Override
+            public void onNothingSelected(AdapterView<?> parent) {
+            }
+        });
+
+        mHashAdapter = new KeyValueSpinnerAdapter(getActivity(), algorithmNames.getHashNames());
+        mHashAlgorithm.setAdapter(mHashAdapter);
+        mHashAlgorithm.setOnItemSelectedListener(new OnItemSelectedListener() {
+
+            @Override
+            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
+                mAccSettings.setHashAlgorithm((int) id);
+            }
+
+            @Override
+            public void onNothingSelected(AdapterView<?> parent) {
+            }
+        });
+
+        mCompressionAdapter = new KeyValueSpinnerAdapter(getActivity(),
+                algorithmNames.getCompressionNames());
+        mCompression.setAdapter(mCompressionAdapter);
+        mCompression.setOnItemSelectedListener(new OnItemSelectedListener() {
+
+            @Override
+            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
+                mAccSettings.setCompression((int) id);
+            }
+
+            @Override
+            public void onNothingSelected(AdapterView<?> parent) {
+            }
+        });
+    }
+
+    private void createKey() {
+        Intent intent = new Intent(getActivity(), EditKeyActivity.class);
+        intent.setAction(EditKeyActivity.ACTION_CREATE_KEY);
+        intent.putExtra(EditKeyActivity.EXTRA_GENERATE_DEFAULT_KEYS, true);
+        // set default user id to account name TODO: not working currently in EditKey
+        intent.putExtra(EditKeyActivity.EXTRA_USER_IDS, mAccSettings.getAccountName());
+        startActivityForResult(intent, 0);
+    }
+
+    /**
+     * callback from select secret key fragment
+     */
+    @Override
+    public void onKeySelected(long secretKeyId) {
+        mAccSettings.setKeyId(secretKeyId);
+    }
+
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AccountsListFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AccountsListFragment.java
new file mode 100644
index 000000000..8e65a2f04
--- /dev/null
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AccountsListFragment.java
@@ -0,0 +1,200 @@
+/*
+ * Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.sufficientlysecure.keychain.remote.ui;
+
+import android.content.Context;
+import android.content.Intent;
+import android.database.Cursor;
+import android.net.Uri;
+import android.os.Bundle;
+import android.support.v4.app.ListFragment;
+import android.support.v4.app.LoaderManager;
+import android.support.v4.content.CursorLoader;
+import android.support.v4.content.Loader;
+import android.support.v4.widget.CursorAdapter;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.AdapterView;
+import android.widget.AdapterView.OnItemClickListener;
+import android.widget.LinearLayout;
+import android.widget.ListView;
+import android.widget.TextView;
+
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.Id;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.provider.KeychainContract;
+import org.sufficientlysecure.keychain.ui.widget.FixedListView;
+import org.sufficientlysecure.keychain.util.Log;
+
+public class AccountsListFragment extends ListFragment implements
+        LoaderManager.LoaderCallbacks<Cursor> {
+
+    private static final String ARG_DATA_URI = "uri";
+
+    // This is the Adapter being used to display the list's data.
+    AccountsAdapter mAdapter;
+
+    private Uri mDataUri;
+
+    /**
+     * Creates new instance of this fragment
+     */
+    public static AccountsListFragment newInstance(Uri dataUri) {
+        AccountsListFragment frag = new AccountsListFragment();
+
+        Bundle args = new Bundle();
+        args.putParcelable(ARG_DATA_URI, dataUri);
+
+        frag.setArguments(args);
+
+        return frag;
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        View layout = super.onCreateView(inflater, container,
+                savedInstanceState);
+        ListView lv = (ListView) layout.findViewById(android.R.id.list);
+        ViewGroup parent = (ViewGroup) lv.getParent();
+
+        /*
+         * http://stackoverflow.com/a/15880684
+         * Remove ListView and add FixedListView in its place.
+         * This is done here programatically to be still able to use the progressBar of ListFragment.
+         *
+         * We want FixedListView to be able to put this ListFragment inside a ScrollView
+         */
+        int lvIndex = parent.indexOfChild(lv);
+        parent.removeViewAt(lvIndex);
+        FixedListView newLv = new FixedListView(getActivity());
+        newLv.setId(android.R.id.list);
+        parent.addView(newLv, lvIndex, lv.getLayoutParams());
+        return layout;
+    }
+
+    @Override
+    public void onActivityCreated(Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+
+        mDataUri = getArguments().getParcelable(ARG_DATA_URI);
+
+        getListView().setOnItemClickListener(new OnItemClickListener() {
+            @Override
+            public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
+                String selectedAccountName = mAdapter.getItemAccountName(position);
+                Uri accountUri = mDataUri.buildUpon().appendEncodedPath(selectedAccountName).build();
+                Log.d(Constants.TAG, "accountUri: " + accountUri);
+
+                // edit account settings
+                Intent intent = new Intent(getActivity(), AccountSettingsActivity.class);
+                intent.setData(accountUri);
+                startActivity(intent);
+            }
+        });
+
+        // Give some text to display if there is no data. In a real
+        // application this would come from a resource.
+        setEmptyText(getString(R.string.api_settings_accounts_empty));
+
+        // We have a menu item to show in action bar.
+        setHasOptionsMenu(true);
+
+        // Create an empty adapter we will use to display the loaded data.
+        mAdapter = new AccountsAdapter(getActivity(), null, 0);
+        setListAdapter(mAdapter);
+
+        // Prepare the loader. Either re-connect with an existing one,
+        // or start a new one.
+        getLoaderManager().initLoader(0, null, this);
+    }
+
+    // These are the Contacts rows that we will retrieve.
+    static final String[] PROJECTION = new String[]{
+            KeychainContract.ApiAccounts._ID, // 0
+            KeychainContract.ApiAccounts.ACCOUNT_NAME // 1
+    };
+
+    public Loader<Cursor> onCreateLoader(int id, Bundle args) {
+        // This is called when a new Loader needs to be created. This
+        // sample only has one Loader, so we don't care about the ID.
+
+        // Now create and return a CursorLoader that will take care of
+        // creating a Cursor for the data being displayed.
+        return new CursorLoader(getActivity(), mDataUri, PROJECTION, null, null,
+                KeychainContract.ApiAccounts.ACCOUNT_NAME + " COLLATE LOCALIZED ASC");
+    }
+
+    public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
+        // Swap the new cursor in. (The framework will take care of closing the
+        // old cursor once we return.)
+        mAdapter.swapCursor(data);
+    }
+
+    public void onLoaderReset(Loader<Cursor> loader) {
+        // This is called when the last Cursor provided to onLoadFinished()
+        // above is about to be closed. We need to make sure we are no
+        // longer using it.
+        mAdapter.swapCursor(null);
+    }
+
+    private class AccountsAdapter extends CursorAdapter {
+        private LayoutInflater mInflater;
+
+        public AccountsAdapter(Context context, Cursor c, int flags) {
+            super(context, c, flags);
+
+            mInflater = LayoutInflater.from(context);
+        }
+
+        /**
+         * Similar to CursorAdapter.getItemId().
+         * Required to build Uris for api app view, which is not based on row ids
+         *
+         * @param position
+         * @return
+         */
+        public String getItemAccountName(int position) {
+            if (mDataValid && mCursor != null) {
+                if (mCursor.moveToPosition(position)) {
+                    return mCursor.getString(1);
+                } else {
+                    return null;
+                }
+            } else {
+                return null;
+            }
+        }
+
+        @Override
+        public void bindView(View view, Context context, Cursor cursor) {
+            TextView text = (TextView) view.findViewById(R.id.api_accounts_adapter_item_name);
+
+            String accountName = cursor.getString(1);
+            text.setText(accountName);
+        }
+
+        @Override
+        public View newView(Context context, Cursor cursor, ViewGroup parent) {
+            return mInflater.inflate(R.layout.api_accounts_adapter_list_item, null);
+        }
+    }
+
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AppSettingsActivity.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AppSettingsActivity.java
new file mode 100644
index 000000000..9e0ba49eb
--- /dev/null
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AppSettingsActivity.java
@@ -0,0 +1,138 @@
+/*
+ * Copyright (C) 2013 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.sufficientlysecure.keychain.remote.ui;
+
+import android.content.Intent;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
+import android.net.Uri;
+import android.os.Bundle;
+import android.support.v7.app.ActionBar;
+import android.support.v7.app.ActionBarActivity;
+import android.view.Menu;
+import android.view.MenuItem;
+
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.provider.KeychainContract;
+import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.remote.AppSettings;
+import org.sufficientlysecure.keychain.util.Log;
+
+public class AppSettingsActivity extends ActionBarActivity {
+    private Uri mAppUri;
+
+    private AppSettingsFragment mSettingsFragment;
+    private AccountsListFragment mAccountsListFragment;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        // let the actionbar look like Android's contact app
+        ActionBar actionBar = getSupportActionBar();
+        actionBar.setDisplayHomeAsUpEnabled(true);
+        actionBar.setIcon(android.R.color.transparent);
+        actionBar.setHomeButtonEnabled(true);
+
+        setContentView(R.layout.api_app_settings_activity);
+
+        mSettingsFragment = (AppSettingsFragment) getSupportFragmentManager().findFragmentById(
+                R.id.api_app_settings_fragment);
+
+        Intent intent = getIntent();
+        mAppUri = intent.getData();
+        if (mAppUri == null) {
+            Log.e(Constants.TAG, "Intent data missing. Should be Uri of app!");
+            finish();
+            return;
+        } else {
+            Log.d(Constants.TAG, "uri: " + mAppUri);
+            loadData(savedInstanceState, mAppUri);
+        }
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        super.onCreateOptionsMenu(menu);
+        getMenuInflater().inflate(R.menu.api_app_settings, menu);
+        return true;
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case R.id.menu_api_settings_revoke:
+                revokeAccess();
+                return true;
+            case R.id.menu_api_settings_cancel:
+                finish();
+                return true;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+
+    private void loadData(Bundle savedInstanceState, Uri appUri) {
+        // TODO: load this also like other fragment with newInstance arguments?
+        AppSettings settings = ProviderHelper.getApiAppSettings(this, appUri);
+        mSettingsFragment.setAppSettings(settings);
+
+        String appName;
+        PackageManager pm = getPackageManager();
+        try {
+            ApplicationInfo ai = pm.getApplicationInfo(settings.getPackageName(), 0);
+            appName = (String) pm.getApplicationLabel(ai);
+        } catch (PackageManager.NameNotFoundException e) {
+            // fallback
+            appName = settings.getPackageName();
+        }
+        setTitle(appName);
+
+        Uri accountsUri = appUri.buildUpon().appendPath(KeychainContract.PATH_ACCOUNTS).build();
+        Log.d(Constants.TAG, "accountsUri: " + accountsUri);
+        startListFragment(savedInstanceState, accountsUri);
+    }
+
+    private void startListFragment(Bundle savedInstanceState, Uri dataUri) {
+        // However, if we're being restored from a previous state,
+        // then we don't need to do anything and should return or else
+        // we could end up with overlapping fragments.
+        if (savedInstanceState != null) {
+            return;
+        }
+
+        // Create an instance of the fragment
+        mAccountsListFragment = AccountsListFragment.newInstance(dataUri);
+
+        // Add the fragment to the 'fragment_container' FrameLayout
+        // NOTE: We use commitAllowingStateLoss() to prevent weird crashes!
+        getSupportFragmentManager().beginTransaction()
+                .replace(R.id.api_accounts_list_fragment, mAccountsListFragment)
+                .commitAllowingStateLoss();
+        // do it immediately!
+        getSupportFragmentManager().executePendingTransactions();
+    }
+
+    private void revokeAccess() {
+        if (getContentResolver().delete(mAppUri, null, null) <= 0) {
+            throw new RuntimeException();
+        }
+        finish();
+    }
+
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AppSettingsFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AppSettingsFragment.java
new file mode 100644
index 000000000..a6db02708
--- /dev/null
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AppSettingsFragment.java
@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2013-2014 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.sufficientlysecure.keychain.remote.ui;
+
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.PackageManager.NameNotFoundException;
+import android.graphics.drawable.Drawable;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import org.spongycastle.util.encoders.Hex;
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.remote.AppSettings;
+import org.sufficientlysecure.keychain.util.Log;
+
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
+public class AppSettingsFragment extends Fragment {
+
+    // model
+    private AppSettings mAppSettings;
+
+    // view
+    private TextView mAppNameView;
+    private ImageView mAppIconView;
+    private TextView mPackageName;
+    private TextView mPackageSignature;
+
+    public AppSettings getAppSettings() {
+        return mAppSettings;
+    }
+
+    public void setAppSettings(AppSettings appSettings) {
+        this.mAppSettings = appSettings;
+        updateView(appSettings);
+    }
+
+    /**
+     * Inflate the layout for this fragment
+     */
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        View view = inflater.inflate(R.layout.api_app_settings_fragment, container, false);
+        mAppNameView = (TextView) view.findViewById(R.id.api_app_settings_app_name);
+        mAppIconView = (ImageView) view.findViewById(R.id.api_app_settings_app_icon);
+        mPackageName = (TextView) view.findViewById(R.id.api_app_settings_package_name);
+        mPackageSignature = (TextView) view.findViewById(R.id.api_app_settings_package_signature);
+        return view;
+    }
+
+    private void updateView(AppSettings appSettings) {
+        // get application name and icon from package manager
+        String appName;
+        Drawable appIcon = null;
+        PackageManager pm = getActivity().getApplicationContext().getPackageManager();
+        try {
+            ApplicationInfo ai = pm.getApplicationInfo(appSettings.getPackageName(), 0);
+
+            appName = (String) pm.getApplicationLabel(ai);
+            appIcon = pm.getApplicationIcon(ai);
+        } catch (NameNotFoundException e) {
+            // fallback
+            appName = appSettings.getPackageName();
+        }
+        mAppNameView.setText(appName);
+        mAppIconView.setImageDrawable(appIcon);
+
+        // advanced info: package name
+        mPackageName.setText(appSettings.getPackageName());
+
+        // advanced info: package signature SHA-256
+        try {
+            MessageDigest md = MessageDigest.getInstance("SHA-256");
+            md.update(appSettings.getPackageSignature());
+            byte[] digest = md.digest();
+            String signature = new String(Hex.encode(digest));
+
+            mPackageSignature.setText(signature);
+        } catch (NoSuchAlgorithmException e) {
+            Log.e(Constants.TAG, "Should not happen!", e);
+        }
+    }
+
+
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/remote/RegisteredAppsListActivity.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AppsListActivity.java
index 3c553fff5..f86d279f0 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/remote/RegisteredAppsListActivity.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AppsListActivity.java
@@ -15,14 +15,13 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package org.sufficientlysecure.keychain.service.remote;
+package org.sufficientlysecure.keychain.remote.ui;
 
+import android.os.Bundle;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.ui.DrawerActivity;
 
-import android.os.Bundle;
-
-public class RegisteredAppsListActivity extends DrawerActivity {
+public class AppsListActivity extends DrawerActivity {
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/remote/RegisteredAppsListFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AppsListFragment.java
index fed267a44..f3fa6e7c6 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/remote/RegisteredAppsListFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AppsListFragment.java
@@ -15,14 +15,12 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package org.sufficientlysecure.keychain.service.remote;
+package org.sufficientlysecure.keychain.remote.ui;
 
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.provider.KeychainContract;
-import org.sufficientlysecure.keychain.provider.KeychainContract.ApiApps;
-
-import android.content.ContentUris;
+import android.content.Context;
 import android.content.Intent;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
 import android.database.Cursor;
 import android.net.Uri;
 import android.os.Bundle;
@@ -30,11 +28,22 @@ import android.support.v4.app.ListFragment;
 import android.support.v4.app.LoaderManager;
 import android.support.v4.content.CursorLoader;
 import android.support.v4.content.Loader;
+import android.support.v4.widget.CursorAdapter;
+import android.view.LayoutInflater;
 import android.view.View;
+import android.view.ViewGroup;
 import android.widget.AdapterView;
 import android.widget.AdapterView.OnItemClickListener;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.provider.KeychainContract;
+import org.sufficientlysecure.keychain.provider.KeychainContract.ApiApps;
+import org.sufficientlysecure.keychain.util.Log;
 
-public class RegisteredAppsListFragment extends ListFragment implements
+public class AppsListFragment extends ListFragment implements
         LoaderManager.LoaderCallbacks<Cursor> {
 
     // This is the Adapter being used to display the list's data.
@@ -47,9 +56,10 @@ public class RegisteredAppsListFragment extends ListFragment implements
         getListView().setOnItemClickListener(new OnItemClickListener() {
             @Override
             public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
+                String selectedPackageName = mAdapter.getItemPackageName(position);
                 // edit app settings
                 Intent intent = new Intent(getActivity(), AppSettingsActivity.class);
-                intent.setData(ContentUris.withAppendedId(KeychainContract.ApiApps.CONTENT_URI, id));
+                intent.setData(KeychainContract.ApiApps.buildByPackageNameUri(selectedPackageName));
                 startActivity(intent);
             }
         });
@@ -71,7 +81,10 @@ public class RegisteredAppsListFragment extends ListFragment implements
     }
 
     // These are the Contacts rows that we will retrieve.
-    static final String[] PROJECTION = new String[] { ApiApps._ID, ApiApps.PACKAGE_NAME };
+    static final String[] PROJECTION = new String[]{
+            ApiApps._ID, // 0
+            ApiApps.PACKAGE_NAME // 1
+    };
 
     public Loader<Cursor> onCreateLoader(int id, Bundle args) {
         // This is called when a new Loader needs to be created. This
@@ -99,4 +112,65 @@ public class RegisteredAppsListFragment extends ListFragment implements
         mAdapter.swapCursor(null);
     }
 
-}
\ No newline at end of file
+    private class RegisteredAppsAdapter extends CursorAdapter {
+
+        private LayoutInflater mInflater;
+        private PackageManager mPM;
+
+        public RegisteredAppsAdapter(Context context, Cursor c, int flags) {
+            super(context, c, flags);
+
+            mInflater = LayoutInflater.from(context);
+            mPM = context.getApplicationContext().getPackageManager();
+        }
+
+        /**
+         * Similar to CursorAdapter.getItemId().
+         * Required to build Uris for api app view, which is not based on row ids
+         *
+         * @param position
+         * @return
+         */
+        public String getItemPackageName(int position) {
+            if (mDataValid && mCursor != null) {
+                if (mCursor.moveToPosition(position)) {
+                    return mCursor.getString(1);
+                } else {
+                    return null;
+                }
+            } else {
+                return null;
+            }
+        }
+
+        @Override
+        public void bindView(View view, Context context, Cursor cursor) {
+            TextView text = (TextView) view.findViewById(R.id.api_apps_adapter_item_name);
+            ImageView icon = (ImageView) view.findViewById(R.id.api_apps_adapter_item_icon);
+
+            String packageName = cursor.getString(cursor.getColumnIndex(ApiApps.PACKAGE_NAME));
+            if (packageName != null) {
+                // get application name
+                try {
+                    ApplicationInfo ai = mPM.getApplicationInfo(packageName, 0);
+
+                    text.setText(mPM.getApplicationLabel(ai));
+                    icon.setImageDrawable(mPM.getApplicationIcon(ai));
+                } catch (final PackageManager.NameNotFoundException e) {
+                    // fallback
+                    text.setText(packageName);
+                }
+            } else {
+                // fallback
+                text.setText(packageName);
+            }
+
+        }
+
+        @Override
+        public View newView(Context context, Cursor cursor, ViewGroup parent) {
+            return mInflater.inflate(R.layout.api_apps_adapter_list_item, null);
+        }
+    }
+
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/remote/RemoteServiceActivity.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/RemoteServiceActivity.java
index 11b3ee217..a894da448 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/remote/RemoteServiceActivity.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/RemoteServiceActivity.java
@@ -15,7 +15,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package org.sufficientlysecure.keychain.service.remote;
+package org.sufficientlysecure.keychain.remote.ui;
 
 import android.content.Intent;
 import android.os.Bundle;
@@ -32,7 +32,10 @@ import org.sufficientlysecure.keychain.Id;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.helper.ActionBarHelper;
 import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
+import org.sufficientlysecure.keychain.provider.KeychainContract;
 import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.remote.AccountSettings;
+import org.sufficientlysecure.keychain.remote.AppSettings;
 import org.sufficientlysecure.keychain.ui.SelectPublicKeyFragment;
 import org.sufficientlysecure.keychain.ui.dialog.PassphraseDialogFragment;
 import org.sufficientlysecure.keychain.util.Log;
@@ -42,6 +45,8 @@ import java.util.ArrayList;
 public class RemoteServiceActivity extends ActionBarActivity {
 
     public static final String ACTION_REGISTER = Constants.INTENT_PREFIX + "API_ACTIVITY_REGISTER";
+    public static final String ACTION_CREATE_ACCOUNT = Constants.INTENT_PREFIX
+            + "API_ACTIVITY_CREATE_ACCOUNT";
     public static final String ACTION_CACHE_PASSPHRASE = Constants.INTENT_PREFIX
             + "API_ACTIVITY_CACHE_PASSPHRASE";
     public static final String ACTION_SELECT_PUB_KEYS = Constants.INTENT_PREFIX
@@ -58,6 +63,8 @@ public class RemoteServiceActivity extends ActionBarActivity {
     // register action
     public static final String EXTRA_PACKAGE_NAME = "package_name";
     public static final String EXTRA_PACKAGE_SIGNATURE = "package_signature";
+    // create acc action
+    public static final String EXTRA_ACC_NAME = "acc_name";
     // select pub keys action
     public static final String EXTRA_SELECTED_MASTER_KEY_IDS = "master_key_ids";
     public static final String EXTRA_MISSING_USER_IDS = "missing_user_ids";
@@ -66,7 +73,9 @@ public class RemoteServiceActivity extends ActionBarActivity {
     public static final String EXTRA_ERROR_MESSAGE = "error_message";
 
     // register view
-    private AppSettingsFragment mSettingsFragment;
+    private AppSettingsFragment mAppSettingsFragment;
+    // create acc view
+    private AccountSettingsFragment mAccSettingsFragment;
     // select pub keys view
     private SelectPublicKeyFragment mSelectFragment;
 
@@ -86,21 +95,62 @@ public class RemoteServiceActivity extends ActionBarActivity {
         if (ACTION_REGISTER.equals(action)) {
             final String packageName = extras.getString(EXTRA_PACKAGE_NAME);
             final byte[] packageSignature = extras.getByteArray(EXTRA_PACKAGE_SIGNATURE);
+            Log.d(Constants.TAG, "ACTION_REGISTER packageName: "+packageName);
 
             // Inflate a "Done"/"Cancel" custom action bar view
-            ActionBarHelper.setDoneCancelView(getSupportActionBar(), R.string.api_register_allow,
+            ActionBarHelper.setTwoButtonView(getSupportActionBar(),
+                    R.string.api_register_allow, R.drawable.ic_action_done,
                     new View.OnClickListener() {
                         @Override
                         public void onClick(View v) {
                             // Allow
 
+                            ProviderHelper.insertApiApp(RemoteServiceActivity.this,
+                                    mAppSettingsFragment.getAppSettings());
+
+                            // give data through for new service call
+                            Intent resultData = extras.getParcelable(EXTRA_DATA);
+                            RemoteServiceActivity.this.setResult(RESULT_OK, resultData);
+                            RemoteServiceActivity.this.finish();
+                        }
+                    }, R.string.api_register_disallow, R.drawable.ic_action_cancel,
+                    new View.OnClickListener() {
+                        @Override
+                        public void onClick(View v) {
+                            // Disallow
+                            RemoteServiceActivity.this.setResult(RESULT_CANCELED);
+                            RemoteServiceActivity.this.finish();
+                        }
+                    }
+            );
+
+            setContentView(R.layout.api_remote_register_app);
+
+            mAppSettingsFragment = (AppSettingsFragment) getSupportFragmentManager().findFragmentById(
+                    R.id.api_app_settings_fragment);
+
+            AppSettings settings = new AppSettings(packageName, packageSignature);
+            mAppSettingsFragment.setAppSettings(settings);
+        } else if (ACTION_CREATE_ACCOUNT.equals(action)) {
+            final String packageName = extras.getString(EXTRA_PACKAGE_NAME);
+            final String accName = extras.getString(EXTRA_ACC_NAME);
+
+            // Inflate a "Done"/"Cancel" custom action bar view
+            ActionBarHelper.setTwoButtonView(getSupportActionBar(),
+                    R.string.api_settings_save, R.drawable.ic_action_done,
+                    new View.OnClickListener() {
+                        @Override
+                        public void onClick(View v) {
+                            // Save
+
                             // user needs to select a key!
-                            if (mSettingsFragment.getAppSettings().getKeyId() == Id.key.none) {
-                                mSettingsFragment.setErrorOnSelectKeyFragment(
+                            if (mAccSettingsFragment.getAccSettings().getKeyId() == Id.key.none) {
+                                mAccSettingsFragment.setErrorOnSelectKeyFragment(
                                         getString(R.string.api_register_error_select_key));
                             } else {
-                                ProviderHelper.insertApiApp(RemoteServiceActivity.this,
-                                        mSettingsFragment.getAppSettings());
+                                ProviderHelper.insertApiAccount(RemoteServiceActivity.this,
+                                        KeychainContract.ApiAccounts.buildBaseUri(packageName),
+                                        mAccSettingsFragment.getAccSettings());
 
                                 // give data through for new service call
                                 Intent resultData = extras.getParcelable(EXTRA_DATA);
@@ -108,23 +158,24 @@ public class RemoteServiceActivity extends ActionBarActivity {
                                 RemoteServiceActivity.this.finish();
                             }
                         }
-                    }, R.string.api_register_disallow, new View.OnClickListener() {
+                    }, R.string.api_settings_cancel, R.drawable.ic_action_cancel,
+                    new View.OnClickListener() {
                         @Override
                         public void onClick(View v) {
-                            // Disallow
+                            // Cancel
                             RemoteServiceActivity.this.setResult(RESULT_CANCELED);
                             RemoteServiceActivity.this.finish();
                         }
                     }
             );
 
-            setContentView(R.layout.api_app_register_activity);
+            setContentView(R.layout.api_remote_create_account);
 
-            mSettingsFragment = (AppSettingsFragment) getSupportFragmentManager().findFragmentById(
-                    R.id.api_app_settings_fragment);
+            mAccSettingsFragment = (AccountSettingsFragment) getSupportFragmentManager().findFragmentById(
+                    R.id.api_account_settings_fragment);
 
-            AppSettings settings = new AppSettings(packageName, packageSignature);
-            mSettingsFragment.setAppSettings(settings);
+            AccountSettings settings = new AccountSettings(accName);
+            mAccSettingsFragment.setAccSettings(settings);
         } else if (ACTION_CACHE_PASSPHRASE.equals(action)) {
             long secretKeyId = extras.getLong(EXTRA_SECRET_KEY_ID);
             Intent resultData = extras.getParcelable(EXTRA_DATA);
@@ -161,7 +212,8 @@ public class RemoteServiceActivity extends ActionBarActivity {
             }
 
             // Inflate a "Done"/"Cancel" custom action bar view
-            ActionBarHelper.setDoneCancelView(getSupportActionBar(), R.string.btn_okay,
+            ActionBarHelper.setTwoButtonView(getSupportActionBar(),
+                    R.string.btn_okay, R.drawable.ic_action_done,
                     new View.OnClickListener() {
                         @Override
                         public void onClick(View v) {
@@ -173,7 +225,7 @@ public class RemoteServiceActivity extends ActionBarActivity {
                             RemoteServiceActivity.this.setResult(RESULT_OK, resultData);
                             RemoteServiceActivity.this.finish();
                         }
-                    }, R.string.btn_do_not_save, new View.OnClickListener() {
+                    }, R.string.btn_do_not_save, R.drawable.ic_action_cancel, new View.OnClickListener() {
                         @Override
                         public void onClick(View v) {
                             // cancel
@@ -183,7 +235,7 @@ public class RemoteServiceActivity extends ActionBarActivity {
                     }
             );
 
-            setContentView(R.layout.api_app_select_pub_keys_activity);
+            setContentView(R.layout.api_remote_select_pub_keys);
 
             // set text on view
             HtmlTextView textView = (HtmlTextView) findViewById(R.id.api_select_pub_keys_text);
@@ -214,7 +266,8 @@ public class RemoteServiceActivity extends ActionBarActivity {
             String text = "<font color=\"red\">" + errorMessage + "</font>";
 
             // Inflate a "Done" custom action bar view
-            ActionBarHelper.setDoneView(getSupportActionBar(), R.string.btn_okay,
+            ActionBarHelper.setOneButtonView(getSupportActionBar(),
+                    R.string.btn_okay, R.drawable.ic_action_done,
                     new View.OnClickListener() {
 
                         @Override
@@ -224,7 +277,7 @@ public class RemoteServiceActivity extends ActionBarActivity {
                         }
                     });
 
-            setContentView(R.layout.api_app_error_message);
+            setContentView(R.layout.api_remote_error_message);
 
             // set text on view
             HtmlTextView textView = (HtmlTextView) findViewById(R.id.api_app_error_message_text);
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/KeychainIntentService.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/KeychainIntentService.java
index d796ccf31..846eb8cf9 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/KeychainIntentService.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/KeychainIntentService.java
@@ -17,62 +17,41 @@
 
 package org.sufficientlysecure.keychain.service;
 
-import java.io.BufferedInputStream;
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.util.ArrayList;
-import java.util.GregorianCalendar;
-import java.util.List;
+import android.app.IntentService;
+import android.content.Context;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Bundle;
+import android.os.Message;
+import android.os.Messenger;
+import android.os.RemoteException;
 
-import org.spongycastle.openpgp.PGPKeyRing;
-import org.spongycastle.openpgp.PGPObjectFactory;
-import org.spongycastle.openpgp.PGPPublicKeyRing;
-import org.spongycastle.openpgp.PGPSecretKey;
-import org.spongycastle.openpgp.PGPUtil;
+import org.spongycastle.openpgp.*;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.Id;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.helper.FileHelper;
 import org.sufficientlysecure.keychain.helper.OtherHelper;
 import org.sufficientlysecure.keychain.helper.Preferences;
-import org.sufficientlysecure.keychain.pgp.PgpConversionHelper;
-import org.sufficientlysecure.keychain.pgp.PgpDecryptVerify;
-import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyResult;
-import org.sufficientlysecure.keychain.pgp.PgpHelper;
-import org.sufficientlysecure.keychain.pgp.PgpImportExport;
-import org.sufficientlysecure.keychain.pgp.PgpKeyOperation;
-import org.sufficientlysecure.keychain.pgp.PgpSignEncrypt;
+import org.sufficientlysecure.keychain.pgp.*;
 import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
 import org.sufficientlysecure.keychain.provider.KeychainContract.DataStream;
 import org.sufficientlysecure.keychain.provider.ProviderHelper;
 import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListEntry;
-import org.sufficientlysecure.keychain.util.HkpKeyServer;
-import org.sufficientlysecure.keychain.util.InputData;
-import org.sufficientlysecure.keychain.util.Log;
-import org.sufficientlysecure.keychain.util.ProgressDialogUpdater;
+import org.sufficientlysecure.keychain.util.*;
 
-import android.app.IntentService;
-import android.content.Context;
-import android.content.Intent;
-import android.net.Uri;
-import android.os.Bundle;
-import android.os.Message;
-import android.os.Messenger;
-import android.os.RemoteException;
+import java.io.*;
+import java.util.ArrayList;
+import java.util.GregorianCalendar;
+import java.util.List;
 
 /**
  * This Service contains all important long lasting operations for APG. It receives Intents with
  * data from the activities or other apps, queues these intents, executes them, and stops itself
  * after doing them.
  */
-public class KeychainIntentService extends IntentService implements ProgressDialogUpdater {
+public class KeychainIntentService extends IntentService
+        implements ProgressDialogUpdater, KeychainServiceListener {
 
     /* extras that can be given by intent */
     public static final String EXTRA_MESSENGER = "messenger";
@@ -159,6 +138,7 @@ public class KeychainIntentService extends IntentService implements ProgressDial
     // sign key
     public static final String CERTIFY_KEY_MASTER_KEY_ID = "sign_key_master_key_id";
     public static final String CERTIFY_KEY_PUB_KEY_ID = "sign_key_pub_key_id";
+    public static final String CERTIFY_KEY_UIDS = "sign_key_uids";
 
     /*
      * possible data keys as result send over messenger
@@ -324,8 +304,10 @@ public class KeychainIntentService extends IntentService implements ProgressDial
                     builder.enableAsciiArmorOutput(useAsciiArmor)
                             .signatureForceV3(Preferences.getPreferences(this).getForceV3Signatures())
                             .signatureKeyId(secretKeyId)
-                            .signatureHashAlgorithm(Preferences.getPreferences(this).getDefaultHashAlgorithm())
-                            .signaturePassphrase(PassphraseCacheService.getCachedPassphrase(this, secretKeyId));
+                            .signatureHashAlgorithm(
+                                    Preferences.getPreferences(this).getDefaultHashAlgorithm())
+                            .signaturePassphrase(
+                                    PassphraseCacheService.getCachedPassphrase(this, secretKeyId));
 
                     builder.build().generateSignature();
                 } else if (signOnly) {
@@ -333,21 +315,26 @@ public class KeychainIntentService extends IntentService implements ProgressDial
                     builder.enableAsciiArmorOutput(useAsciiArmor)
                             .signatureForceV3(Preferences.getPreferences(this).getForceV3Signatures())
                             .signatureKeyId(secretKeyId)
-                            .signatureHashAlgorithm(Preferences.getPreferences(this).getDefaultHashAlgorithm())
-                            .signaturePassphrase(PassphraseCacheService.getCachedPassphrase(this, secretKeyId));
+                            .signatureHashAlgorithm(
+                                    Preferences.getPreferences(this).getDefaultHashAlgorithm())
+                            .signaturePassphrase(
+                                    PassphraseCacheService.getCachedPassphrase(this, secretKeyId));
 
                     builder.build().execute();
                 } else {
                     Log.d(Constants.TAG, "encrypt...");
                     builder.enableAsciiArmorOutput(useAsciiArmor)
                             .compressionId(compressionId)
-                            .symmetricEncryptionAlgorithm(Preferences.getPreferences(this).getDefaultEncryptionAlgorithm())
+                            .symmetricEncryptionAlgorithm(
+                                    Preferences.getPreferences(this).getDefaultEncryptionAlgorithm())
                             .signatureForceV3(Preferences.getPreferences(this).getForceV3Signatures())
                             .encryptionKeyIds(encryptionKeyIds)
                             .encryptionPassphrase(encryptionPassphrase)
                             .signatureKeyId(secretKeyId)
-                            .signatureHashAlgorithm(Preferences.getPreferences(this).getDefaultHashAlgorithm())
-                            .signaturePassphrase(PassphraseCacheService.getCachedPassphrase(this, secretKeyId));
+                            .signatureHashAlgorithm(
+                                    Preferences.getPreferences(this).getDefaultHashAlgorithm())
+                            .signaturePassphrase(
+                                    PassphraseCacheService.getCachedPassphrase(this, secretKeyId));
 
                     builder.build().execute();
                 }
@@ -586,13 +573,24 @@ public class KeychainIntentService extends IntentService implements ProgressDial
                 String passphrase = data.getString(GENERATE_KEY_SYMMETRIC_PASSPHRASE);
 
                 /* Operation */
+                int keysTotal = 2;
+                int keysCreated = 0;
+                setProgress(
+                        getApplicationContext().getResources().
+                                getQuantityString(R.plurals.progress_generating, keysTotal),
+                        keysCreated,
+                        keysTotal);
                 PgpKeyOperation keyOperations = new PgpKeyOperation(this, this);
 
                 PGPSecretKey masterKey = keyOperations.createKey(Id.choice.algorithm.rsa,
                         4096, passphrase, true);
+                keysCreated++;
+                setProgress(keysCreated, keysTotal);
 
                 PGPSecretKey subKey = keyOperations.createKey(Id.choice.algorithm.rsa,
                         4096, passphrase, false);
+                keysCreated++;
+                setProgress(keysCreated, keysTotal);
 
                 // TODO: default to one master for cert, one sub for encrypt and one sub
                 //       for sign
@@ -652,14 +650,11 @@ public class KeychainIntentService extends IntentService implements ProgressDial
                 if (data.containsKey(EXPORT_KEY_TYPE)) {
                     keyType = data.getInt(EXPORT_KEY_TYPE);
                 }
-
+                long[] masterKeyIds = data.getLongArray(EXPORT_KEY_RING_MASTER_KEY_ID);
                 String outputFile = data.getString(EXPORT_FILENAME);
 
+                // If not exporting all keys get the masterKeyIds of the keys to export from the intent
                 boolean exportAll = data.getBoolean(EXPORT_ALL);
-                long keyRingMasterKeyId = -1;
-                if (!exportAll) {
-                    keyRingMasterKeyId = data.getLong(EXPORT_KEY_RING_MASTER_KEY_ID);
-                }
 
                 /* Operation */
 
@@ -668,27 +663,42 @@ public class KeychainIntentService extends IntentService implements ProgressDial
                     throw new PgpGeneralException(getString(R.string.error_external_storage_not_ready));
                 }
 
-                // OutputStream
-                FileOutputStream outStream = new FileOutputStream(outputFile);
+                ArrayList<Long> publicMasterKeyIds = new ArrayList<Long>();
+                ArrayList<Long> secretMasterKeyIds = new ArrayList<Long>();
+                ArrayList<Long> allPublicMasterKeyIds = ProviderHelper.getPublicKeyRingsMasterKeyIds(this);
+                ArrayList<Long> allSecretMasterKeyIds = ProviderHelper.getSecretKeyRingsMasterKeyIds(this);
 
-                ArrayList<Long> keyRingMasterKeyIds = new ArrayList<Long>();
                 if (exportAll) {
-                    // get all key ring row ids based on export type
-
-                    if (keyType == Id.type.public_key) {
-                        keyRingMasterKeyIds = ProviderHelper.getPublicKeyRingsMasterKeyIds(this);
-                    } else {
-                        keyRingMasterKeyIds = ProviderHelper.getSecretKeyRingsMasterKeyIds(this);
+                    // get all public key ring MasterKey ids
+                    if (keyType == Id.type.public_key || keyType == Id.type.public_secret_key) {
+                        publicMasterKeyIds = allPublicMasterKeyIds;
+                    }
+                    // get all secret key ring MasterKey ids
+                    if (keyType == Id.type.secret_key || keyType == Id.type.public_secret_key) {
+                        secretMasterKeyIds = allSecretMasterKeyIds;
                     }
                 } else {
-                    keyRingMasterKeyIds.add(keyRingMasterKeyId);
+
+                    for (long masterKeyId : masterKeyIds) {
+                        if ((keyType == Id.type.public_key || keyType == Id.type.public_secret_key)
+                                && allPublicMasterKeyIds.contains(masterKeyId)) {
+                            publicMasterKeyIds.add(masterKeyId);
+                        }
+                        if ((keyType == Id.type.secret_key || keyType == Id.type.public_secret_key)
+                                && allSecretMasterKeyIds.contains(masterKeyId)) {
+                            secretMasterKeyIds.add(masterKeyId);
+                        }
+                    }
                 }
 
-                Bundle resultData = new Bundle();
+                PgpImportExport pgpImportExport = new PgpImportExport(this, this, this);
+                Bundle resultData = pgpImportExport
+                        .exportKeyRings(publicMasterKeyIds, secretMasterKeyIds,
+                                new FileOutputStream(outputFile));
 
-                PgpImportExport pgpImportExport = new PgpImportExport(this, this);
-                resultData = pgpImportExport
-                        .exportKeyRings(keyRingMasterKeyIds, keyType, outStream);
+                if (mIsCanceled) {
+                    boolean isDeleted = new File(outputFile).delete();
+                }
 
                 sendMessageToHandler(KeychainIntentServiceHandler.MESSAGE_OKAY, resultData);
             } catch (Exception e) {
@@ -724,48 +734,58 @@ public class KeychainIntentService extends IntentService implements ProgressDial
                 ArrayList<ImportKeysListEntry> entries = data.getParcelableArrayList(DOWNLOAD_KEY_LIST);
                 String keyServer = data.getString(DOWNLOAD_KEY_SERVER);
 
+                // TODO: add extra which requires fingerprint suport and force verification!
+                // only supported by newer sks keyserver versions
+
                 // this downloads the keys and places them into the ImportKeysListEntry entries
                 HkpKeyServer server = new HkpKeyServer(keyServer);
 
                 for (ImportKeysListEntry entry : entries) {
-                    byte[] downloadedKey = server.get(entry.getKeyId()).getBytes();
-
-                    /**
-                     * TODO: copied from ImportKeysListLoader
-                     *
-                     *
-                     * this parses the downloaded key
-                     */
-                    // need to have access to the bufferedInput, so we can reuse it for the possible
-                    // PGPObject chunks after the first one, e.g. files with several consecutive ASCII
-                    // armor blocks
-                    BufferedInputStream bufferedInput = new BufferedInputStream(new ByteArrayInputStream(downloadedKey));
-                    try {
-
-                        // read all available blocks... (asc files can contain many blocks with BEGIN END)
-                        while (bufferedInput.available() > 0) {
-                            InputStream in = PGPUtil.getDecoderStream(bufferedInput);
-                            PGPObjectFactory objectFactory = new PGPObjectFactory(in);
-
-                            // go through all objects in this block
-                            Object obj;
-                            while ((obj = objectFactory.nextObject()) != null) {
-                                Log.d(Constants.TAG, "Found class: " + obj.getClass());
-
-                                if (obj instanceof PGPKeyRing) {
-                                    PGPKeyRing newKeyring = (PGPKeyRing) obj;
-
-                                    entry.setBytes(newKeyring.getEncoded());
-                                } else {
-                                    Log.e(Constants.TAG, "Object not recognized as PGPKeyRing!");
-                                }
+                    // if available use complete fingerprint for get request
+                    byte[] downloadedKeyBytes;
+                    if (entry.getFingerPrintHex() != null) {
+                        downloadedKeyBytes = server.get("0x" + entry.getFingerPrintHex()).getBytes();
+                    } else {
+                        downloadedKeyBytes = server.get(entry.getKeyIdHex()).getBytes();
+                    }
+
+                    // create PGPKeyRing object based on downloaded armored key
+                    PGPKeyRing downloadedKey = null;
+                    BufferedInputStream bufferedInput =
+                            new BufferedInputStream(new ByteArrayInputStream(downloadedKeyBytes));
+                    if (bufferedInput.available() > 0) {
+                        InputStream in = PGPUtil.getDecoderStream(bufferedInput);
+                        PGPObjectFactory objectFactory = new PGPObjectFactory(in);
+
+                        // get first object in block
+                        Object obj;
+                        if ((obj = objectFactory.nextObject()) != null) {
+                            Log.d(Constants.TAG, "Found class: " + obj.getClass());
+
+                            if (obj instanceof PGPKeyRing) {
+                                downloadedKey = (PGPKeyRing) obj;
+                            } else {
+                                throw new PgpGeneralException("Object not recognized as PGPKeyRing!");
                             }
                         }
-                    } catch (Exception e) {
-                        Log.e(Constants.TAG, "Exception on parsing key file!", e);
                     }
+
+                    // verify downloaded key by comparing fingerprints
+                    if (entry.getFingerPrintHex() != null) {
+                        String downloadedKeyFp = PgpKeyHelper.convertFingerprintToHex(downloadedKey.getPublicKey().getFingerprint());
+                        if (downloadedKeyFp.equals(entry.getFingerPrintHex())) {
+                            Log.d(Constants.TAG, "fingerprint of downloaded key is the same as the requested fingerprint!");
+                        } else {
+                            throw new PgpGeneralException("fingerprint of downloaded key is NOT the same as the requested fingerprint!");
+                        }
+                    }
+
+                    // save key bytes in entry object for doing the
+                    // actual import afterwards
+                    entry.setBytes(downloadedKey.getEncoded());
                 }
 
+
                 Intent importIntent = new Intent(this, KeychainIntentService.class);
                 importIntent.setAction(ACTION_IMPORT_KEYRING);
                 Bundle importData = new Bundle();
@@ -786,6 +806,7 @@ public class KeychainIntentService extends IntentService implements ProgressDial
                 /* Input */
                 long masterKeyId = data.getLong(CERTIFY_KEY_MASTER_KEY_ID);
                 long pubKeyId = data.getLong(CERTIFY_KEY_PUB_KEY_ID);
+                ArrayList<String> userIds = data.getStringArrayList(CERTIFY_KEY_UIDS);
 
                 /* Operation */
                 String signaturePassPhrase = PassphraseCacheService.getCachedPassphrase(this,
@@ -793,7 +814,7 @@ public class KeychainIntentService extends IntentService implements ProgressDial
 
                 PgpKeyOperation keyOperation = new PgpKeyOperation(this, this);
                 PGPPublicKeyRing signedPubKeyRing = keyOperation.certifyKey(masterKeyId, pubKeyId,
-                        signaturePassPhrase);
+                        userIds, signaturePassPhrase);
 
                 // store the signed key in our local cache
                 PgpImportExport pgpImportExport = new PgpImportExport(this, null);
@@ -811,10 +832,10 @@ public class KeychainIntentService extends IntentService implements ProgressDial
 
     private void sendErrorToHandler(Exception e) {
         // Service was canceled. Do not send error to handler.
-        if (this.mIsCanceled)
+        if (this.mIsCanceled) {
             return;
-
-        Log.e(Constants.TAG, "ApgService Exception: ", e);
+        }
+        Log.e(Constants.TAG, "KeychainIntentService Exception: ", e);
         e.printStackTrace();
 
         Bundle data = new Bundle();
@@ -824,9 +845,9 @@ public class KeychainIntentService extends IntentService implements ProgressDial
 
     private void sendMessageToHandler(Integer arg1, Integer arg2, Bundle data) {
         // Service was canceled. Do not send message to handler.
-        if (this.mIsCanceled)
+        if (this.mIsCanceled) {
             return;
-
+        }
         Message msg = Message.obtain();
         msg.arg1 = arg1;
         if (arg2 != null) {
@@ -877,4 +898,9 @@ public class KeychainIntentService extends IntentService implements ProgressDial
     public void setProgress(int progress, int max) {
         setProgress(null, progress, max);
     }
+
+    @Override
+    public boolean hasServiceStopped() {
+        return mIsCanceled;
+    }
 }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/KeychainIntentServiceHandler.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/KeychainIntentServiceHandler.java
index 6eba9cc83..92d012c80 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/KeychainIntentServiceHandler.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/KeychainIntentServiceHandler.java
@@ -17,11 +17,7 @@
 
 package org.sufficientlysecure.keychain.service;
 
-import org.sufficientlysecure.keychain.ui.dialog.ProgressDialogFragment;
-import org.sufficientlysecure.keychain.R;
-
 import android.app.Activity;
-import android.content.DialogInterface;
 import android.content.DialogInterface.OnCancelListener;
 import android.os.Bundle;
 import android.os.Handler;
@@ -29,6 +25,8 @@ import android.os.Message;
 import android.support.v4.app.FragmentActivity;
 import android.support.v4.app.FragmentManager;
 import android.widget.Toast;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.ui.dialog.ProgressDialogFragment;
 
 public class KeychainIntentServiceHandler extends Handler {
 
@@ -51,25 +49,31 @@ public class KeychainIntentServiceHandler extends Handler {
         this.mActivity = activity;
     }
 
-    public KeychainIntentServiceHandler(Activity activity, ProgressDialogFragment progressDialogFragment) {
+    public KeychainIntentServiceHandler(Activity activity,
+                                        ProgressDialogFragment progressDialogFragment) {
         this.mActivity = activity;
         this.mProgressDialogFragment = progressDialogFragment;
     }
 
-    public KeychainIntentServiceHandler(Activity activity, int progressDialogMessageId, int progressDialogStyle) {
-        this(activity, progressDialogMessageId, progressDialogStyle, false, null);
+    public KeychainIntentServiceHandler(Activity activity, String progressDialogMessage,
+                                        int progressDialogStyle) {
+        this(activity, progressDialogMessage, progressDialogStyle, false, null);
     }
 
-    public KeychainIntentServiceHandler(Activity activity, int progressDialogMessageId,
+    public KeychainIntentServiceHandler(Activity activity, String progressDialogMessage,
                                         int progressDialogStyle, boolean cancelable,
                                         OnCancelListener onCancelListener) {
         this.mActivity = activity;
-        this.mProgressDialogFragment = ProgressDialogFragment.newInstance(progressDialogMessageId,
-                progressDialogStyle, cancelable, onCancelListener);
+        this.mProgressDialogFragment = ProgressDialogFragment.newInstance(
+                progressDialogMessage,
+                progressDialogStyle,
+                cancelable,
+                onCancelListener);
     }
 
     public void showProgressDialog(FragmentActivity activity) {
-        // TODO: This is a hack!, see http://stackoverflow.com/questions/10114324/show-dialogfragment-from-onactivityresult
+        // TODO: This is a hack!, see
+        // http://stackoverflow.com/questions/10114324/show-dialogfragment-from-onactivityresult
         final FragmentManager manager = activity.getSupportFragmentManager();
         Handler handler = new Handler();
         handler.post(new Runnable() {
@@ -84,43 +88,43 @@ public class KeychainIntentServiceHandler extends Handler {
         Bundle data = message.getData();
 
         switch (message.arg1) {
-        case MESSAGE_OKAY:
-            mProgressDialogFragment.dismissAllowingStateLoss();
+            case MESSAGE_OKAY:
+                mProgressDialogFragment.dismissAllowingStateLoss();
 
-            break;
+                break;
 
-        case MESSAGE_EXCEPTION:
-            mProgressDialogFragment.dismissAllowingStateLoss();
+            case MESSAGE_EXCEPTION:
+                mProgressDialogFragment.dismissAllowingStateLoss();
 
-            // show error from service
-            if (data.containsKey(DATA_ERROR)) {
-                Toast.makeText(mActivity,
-                        mActivity.getString(R.string.error_message, data.getString(DATA_ERROR)),
-                        Toast.LENGTH_SHORT).show();
-            }
+                // show error from service
+                if (data.containsKey(DATA_ERROR)) {
+                    Toast.makeText(mActivity,
+                            mActivity.getString(R.string.error_message, data.getString(DATA_ERROR)),
+                            Toast.LENGTH_SHORT).show();
+                }
 
-            break;
-
-        case MESSAGE_UPDATE_PROGRESS:
-            if (data.containsKey(DATA_PROGRESS) && data.containsKey(DATA_PROGRESS_MAX)) {
-
-                // update progress from service
-                if (data.containsKey(DATA_MESSAGE)) {
-                    mProgressDialogFragment.setProgress(data.getString(DATA_MESSAGE),
-                            data.getInt(DATA_PROGRESS), data.getInt(DATA_PROGRESS_MAX));
-                } else if (data.containsKey(DATA_MESSAGE_ID)) {
-                    mProgressDialogFragment.setProgress(data.getInt(DATA_MESSAGE_ID),
-                            data.getInt(DATA_PROGRESS), data.getInt(DATA_PROGRESS_MAX));
-                } else {
-                    mProgressDialogFragment.setProgress(data.getInt(DATA_PROGRESS),
-                            data.getInt(DATA_PROGRESS_MAX));
+                break;
+
+            case MESSAGE_UPDATE_PROGRESS:
+                if (data.containsKey(DATA_PROGRESS) && data.containsKey(DATA_PROGRESS_MAX)) {
+
+                    // update progress from service
+                    if (data.containsKey(DATA_MESSAGE)) {
+                        mProgressDialogFragment.setProgress(data.getString(DATA_MESSAGE),
+                                data.getInt(DATA_PROGRESS), data.getInt(DATA_PROGRESS_MAX));
+                    } else if (data.containsKey(DATA_MESSAGE_ID)) {
+                        mProgressDialogFragment.setProgress(data.getInt(DATA_MESSAGE_ID),
+                                data.getInt(DATA_PROGRESS), data.getInt(DATA_PROGRESS_MAX));
+                    } else {
+                        mProgressDialogFragment.setProgress(data.getInt(DATA_PROGRESS),
+                                data.getInt(DATA_PROGRESS_MAX));
+                    }
                 }
-            }
 
-            break;
+                break;
 
-        default:
-            break;
+            default:
+                break;
         }
     }
 }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/PassphraseCacheService.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/PassphraseCacheService.java
index abd2320e3..5825db01b 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/PassphraseCacheService.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/PassphraseCacheService.java
@@ -17,10 +17,16 @@
 
 package org.sufficientlysecure.keychain.service;
 
-import java.util.Date;
-import java.util.HashMap;
-import java.util.Iterator;
-
+import android.app.AlarmManager;
+import android.app.PendingIntent;
+import android.app.Service;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.os.*;
+import android.util.Log;
+import android.support.v4.util.LongSparseArray;
 import org.spongycastle.openpgp.PGPException;
 import org.spongycastle.openpgp.PGPPrivateKey;
 import org.spongycastle.openpgp.PGPSecretKey;
@@ -33,28 +39,13 @@ import org.sufficientlysecure.keychain.helper.Preferences;
 import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
 import org.sufficientlysecure.keychain.provider.ProviderHelper;
 
-import android.app.AlarmManager;
-import android.app.PendingIntent;
-import android.app.Service;
-import android.content.BroadcastReceiver;
-import android.content.Context;
-import android.content.Intent;
-import android.content.IntentFilter;
-import android.os.Binder;
-import android.os.Bundle;
-import android.os.Handler;
-import android.os.HandlerThread;
-import android.os.IBinder;
-import android.os.Message;
-import android.os.Messenger;
-import android.os.RemoteException;
-import android.util.Log;
+import java.util.Date;
+import java.util.Iterator;
 
 /**
  * This service runs in its own process, but is available to all other processes as the main
  * passphrase cache. Use the static methods addCachedPassphrase and getCachedPassphrase for
  * convenience.
- * 
  */
 public class PassphraseCacheService extends Service {
     public static final String TAG = Constants.TAG + ": PassphraseCacheService";
@@ -77,7 +68,7 @@ public class PassphraseCacheService extends Service {
 
     private BroadcastReceiver mIntentReceiver;
 
-    private HashMap<Long, String> mPassphraseCache = new HashMap<Long, String>();
+    private LongSparseArray<String> mPassphraseCache = new LongSparseArray<String>();
 
     Context mContext;
 
@@ -85,7 +76,7 @@ public class PassphraseCacheService extends Service {
      * This caches a new passphrase in memory by sending a new command to the service. An android
      * service is only run once. Thus, when the service is already started, new commands just add
      * new events to the alarm manager for new passphrases to let them timeout in the future.
-     * 
+     *
      * @param context
      * @param keyId
      * @param passphrase
@@ -105,7 +96,7 @@ public class PassphraseCacheService extends Service {
     /**
      * Gets a cached passphrase from memory by sending an intent to the service. This method is
      * designed to wait until the service returns the passphrase.
-     * 
+     *
      * @param context
      * @param keyId
      * @return passphrase or null (if no passphrase is cached for this keyId)
@@ -160,7 +151,7 @@ public class PassphraseCacheService extends Service {
 
     /**
      * Internal implementation to get cached passphrase.
-     * 
+     *
      * @param keyId
      * @return
      */
@@ -204,7 +195,7 @@ public class PassphraseCacheService extends Service {
 
     /**
      * Checks if key has a passphrase.
-     * 
+     *
      * @param secretKeyId
      * @return true if it has a passphrase
      */
@@ -215,17 +206,17 @@ public class PassphraseCacheService extends Service {
                     .getPGPSecretKeyRingByKeyId(context, secretKeyId);
             PGPSecretKey secretKey = null;
             boolean foundValidKey = false;
-            for (Iterator keys = secRing.getSecretKeys(); keys.hasNext();) {
-                secretKey = (PGPSecretKey)keys.next();
+            for (Iterator keys = secRing.getSecretKeys(); keys.hasNext(); ) {
+                secretKey = (PGPSecretKey) keys.next();
                 if (!secretKey.isPrivateKeyEmpty()) {
                     foundValidKey = true;
                     break;
                 }
             }
 
-            if (!foundValidKey)
+            if (!foundValidKey) {
                 return false;
-
+            }
             PBESecretKeyDecryptor keyDecryptor = new JcePBESecretKeyDecryptorBuilder().setProvider(
                     "SC").build("".toCharArray());
             PGPPrivateKey testKey = secretKey.extractPrivateKey(keyDecryptor);
@@ -268,7 +259,7 @@ public class PassphraseCacheService extends Service {
 
     /**
      * Build pending intent that is executed by alarm manager to time out a specific passphrase
-     * 
+     *
      * @param context
      * @param keyId
      * @return
@@ -336,7 +327,7 @@ public class PassphraseCacheService extends Service {
 
     /**
      * Called when one specific passphrase for keyId timed out
-     * 
+     *
      * @param context
      * @param keyId
      */
@@ -347,7 +338,7 @@ public class PassphraseCacheService extends Service {
         Log.d(TAG, "Timeout of keyId " + keyId + ", removed from memory!");
 
         // stop whole service if no cached passphrases remaining
-        if (mPassphraseCache.isEmpty()) {
+        if (mPassphraseCache.size() == 0) {
             Log.d(TAG, "No passphrases remaining in memory, stopping service!");
             stopSelf();
         }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/remote/AppSettingsFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/remote/AppSettingsFragment.java
deleted file mode 100644
index 64c4c5e96..000000000
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/remote/AppSettingsFragment.java
+++ /dev/null
@@ -1,243 +0,0 @@
-/*
- * Copyright (C) 2013-2014 Dominik Schürmann <dominik@dominikschuermann.de>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package org.sufficientlysecure.keychain.service.remote;
-
-import java.security.MessageDigest;
-import java.security.NoSuchAlgorithmException;
-
-import org.spongycastle.util.encoders.Hex;
-import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.ui.SelectSecretKeyLayoutFragment;
-import org.sufficientlysecure.keychain.ui.adapter.KeyValueSpinnerAdapter;
-import org.sufficientlysecure.keychain.util.AlgorithmNames;
-import org.sufficientlysecure.keychain.util.Log;
-
-import android.content.pm.ApplicationInfo;
-import android.content.pm.PackageManager;
-import android.content.pm.PackageManager.NameNotFoundException;
-import android.graphics.drawable.Drawable;
-import android.os.Bundle;
-import android.support.v4.app.Fragment;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.View.OnClickListener;
-import android.view.ViewGroup;
-import android.view.animation.AlphaAnimation;
-import android.view.animation.Animation;
-import android.widget.AdapterView;
-import android.widget.AdapterView.OnItemSelectedListener;
-import android.widget.ImageView;
-import android.widget.LinearLayout;
-import android.widget.Spinner;
-import android.widget.TextView;
-
-import com.beardedhen.androidbootstrap.BootstrapButton;
-
-public class AppSettingsFragment extends Fragment implements
-        SelectSecretKeyLayoutFragment.SelectSecretKeyCallback {
-
-    // model
-    private AppSettings appSettings;
-
-    // view
-    private LinearLayout mAdvancedSettingsContainer;
-    private BootstrapButton mAdvancedSettingsButton;
-    private TextView mAppNameView;
-    private ImageView mAppIconView;
-    private Spinner mEncryptionAlgorithm;
-    private Spinner mHashAlgorithm;
-    private Spinner mCompression;
-    private TextView mPackageName;
-    private TextView mPackageSignature;
-
-    private SelectSecretKeyLayoutFragment mSelectKeyFragment;
-
-    KeyValueSpinnerAdapter encryptionAdapter;
-    KeyValueSpinnerAdapter hashAdapter;
-    KeyValueSpinnerAdapter compressionAdapter;
-
-    public AppSettings getAppSettings() {
-        return appSettings;
-    }
-
-    public void setAppSettings(AppSettings appSettings) {
-        this.appSettings = appSettings;
-        setPackage(appSettings.getPackageName());
-        mPackageName.setText(appSettings.getPackageName());
-
-        try {
-            MessageDigest md = MessageDigest.getInstance("SHA-256");
-            md.update(appSettings.getPackageSignature());
-            byte[] digest = md.digest();
-            String signature = new String(Hex.encode(digest));
-
-            mPackageSignature.setText(signature);
-        } catch (NoSuchAlgorithmException e) {
-            Log.e(Constants.TAG, "Should not happen!", e);
-        }
-
-        mSelectKeyFragment.selectKey(appSettings.getKeyId());
-        mEncryptionAlgorithm.setSelection(encryptionAdapter.getPosition(appSettings
-                .getEncryptionAlgorithm()));
-        mHashAlgorithm.setSelection(hashAdapter.getPosition(appSettings.getHashAlgorithm()));
-        mCompression.setSelection(compressionAdapter.getPosition(appSettings.getCompression()));
-    }
-
-    /**
-     * Inflate the layout for this fragment
-     */
-    @Override
-    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
-        View view = inflater.inflate(R.layout.api_app_settings_fragment, container, false);
-        initView(view);
-        return view;
-    }
-
-    /**
-     * Set error String on key selection
-     *
-     * @param error
-     */
-    public void setErrorOnSelectKeyFragment(String error) {
-        mSelectKeyFragment.setError(error);
-    }
-
-    private void initView(View view) {
-        mSelectKeyFragment = (SelectSecretKeyLayoutFragment) getFragmentManager().findFragmentById(
-                R.id.api_app_settings_select_key_fragment);
-        mSelectKeyFragment.setCallback(this);
-
-        mAdvancedSettingsButton = (BootstrapButton) view
-                .findViewById(R.id.api_app_settings_advanced_button);
-        mAdvancedSettingsContainer = (LinearLayout) view
-                .findViewById(R.id.api_app_settings_advanced);
-
-        mAppNameView = (TextView) view.findViewById(R.id.api_app_settings_app_name);
-        mAppIconView = (ImageView) view.findViewById(R.id.api_app_settings_app_icon);
-        mEncryptionAlgorithm = (Spinner) view
-                .findViewById(R.id.api_app_settings_encryption_algorithm);
-        mHashAlgorithm = (Spinner) view.findViewById(R.id.api_app_settings_hash_algorithm);
-        mCompression = (Spinner) view.findViewById(R.id.api_app_settings_compression);
-        mPackageName = (TextView) view.findViewById(R.id.api_app_settings_package_name);
-        mPackageSignature = (TextView) view.findViewById(R.id.api_app_settings_package_signature);
-
-        AlgorithmNames algorithmNames = new AlgorithmNames(getActivity());
-
-        encryptionAdapter = new KeyValueSpinnerAdapter(getActivity(),
-                algorithmNames.getEncryptionNames());
-        mEncryptionAlgorithm.setAdapter(encryptionAdapter);
-        mEncryptionAlgorithm.setOnItemSelectedListener(new OnItemSelectedListener() {
-
-            @Override
-            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
-                appSettings.setEncryptionAlgorithm((int) id);
-            }
-
-            @Override
-            public void onNothingSelected(AdapterView<?> parent) {
-            }
-        });
-
-        hashAdapter = new KeyValueSpinnerAdapter(getActivity(), algorithmNames.getHashNames());
-        mHashAlgorithm.setAdapter(hashAdapter);
-        mHashAlgorithm.setOnItemSelectedListener(new OnItemSelectedListener() {
-
-            @Override
-            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
-                appSettings.setHashAlgorithm((int) id);
-            }
-
-            @Override
-            public void onNothingSelected(AdapterView<?> parent) {
-            }
-        });
-
-        compressionAdapter = new KeyValueSpinnerAdapter(getActivity(),
-                algorithmNames.getCompressionNames());
-        mCompression.setAdapter(compressionAdapter);
-        mCompression.setOnItemSelectedListener(new OnItemSelectedListener() {
-
-            @Override
-            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
-                appSettings.setCompression((int) id);
-            }
-
-            @Override
-            public void onNothingSelected(AdapterView<?> parent) {
-            }
-        });
-
-        final Animation visibleAnimation = new AlphaAnimation(0.0f, 1.0f);
-        visibleAnimation.setDuration(250);
-        final Animation invisibleAnimation = new AlphaAnimation(1.0f, 0.0f);
-        invisibleAnimation.setDuration(250);
-
-        // TODO: Better: collapse/expand animation
-        // final Animation animation2 = new TranslateAnimation(Animation.RELATIVE_TO_SELF, 0.0f,
-        // Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF, -1.0f,
-        // Animation.RELATIVE_TO_SELF, 0.0f);u
-        // animation2.setDuration(150);
-
-        mAdvancedSettingsButton.setOnClickListener(new OnClickListener() {
-
-            @Override
-            public void onClick(View v) {
-                if (mAdvancedSettingsContainer.getVisibility() == View.VISIBLE) {
-                    mAdvancedSettingsContainer.startAnimation(invisibleAnimation);
-                    mAdvancedSettingsContainer.setVisibility(View.GONE);
-                    mAdvancedSettingsButton.setText(getString(R.string.api_settings_show_advanced));
-                    mAdvancedSettingsButton.setLeftIcon("fa-caret-up");
-                } else {
-                    mAdvancedSettingsContainer.startAnimation(visibleAnimation);
-                    mAdvancedSettingsContainer.setVisibility(View.VISIBLE);
-                    mAdvancedSettingsButton.setText(getString(R.string.api_settings_hide_advanced));
-                    mAdvancedSettingsButton.setLeftIcon("fa-caret-down");
-                }
-            }
-        });
-    }
-
-    private void setPackage(String packageName) {
-        PackageManager pm = getActivity().getApplicationContext().getPackageManager();
-
-        // get application name and icon from package manager
-        String appName = null;
-        Drawable appIcon = null;
-        try {
-            ApplicationInfo ai = pm.getApplicationInfo(packageName, 0);
-
-            appName = (String) pm.getApplicationLabel(ai);
-            appIcon = pm.getApplicationIcon(ai);
-        } catch (final NameNotFoundException e) {
-            // fallback
-            appName = packageName;
-        }
-        mAppNameView.setText(appName);
-        mAppIconView.setImageDrawable(appIcon);
-    }
-
-    /**
-     * callback from select secret key fragment
-     */
-    @Override
-    public void onKeySelected(long secretKeyId) {
-        appSettings.setKeyId(secretKeyId);
-    }
-
-}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/remote/RegisteredAppsAdapter.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/remote/RegisteredAppsAdapter.java
deleted file mode 100644
index 477ee04d0..000000000
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/remote/RegisteredAppsAdapter.java
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * Copyright (C) 2013 Dominik Schürmann <dominik@dominikschuermann.de>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package org.sufficientlysecure.keychain.service.remote;
-
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.provider.KeychainContract.ApiApps;
-
-import android.content.Context;
-import android.content.pm.ApplicationInfo;
-import android.content.pm.PackageManager;
-import android.content.pm.PackageManager.NameNotFoundException;
-import android.database.Cursor;
-import android.support.v4.widget.CursorAdapter;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.ImageView;
-import android.widget.TextView;
-
-public class RegisteredAppsAdapter extends CursorAdapter {
-
-    private LayoutInflater mInflater;
-    private PackageManager pm;
-
-    public RegisteredAppsAdapter(Context context, Cursor c, int flags) {
-        super(context, c, flags);
-
-        mInflater = LayoutInflater.from(context);
-        pm = context.getApplicationContext().getPackageManager();
-    }
-
-    @Override
-    public void bindView(View view, Context context, Cursor cursor) {
-        TextView text = (TextView) view.findViewById(R.id.api_apps_adapter_item_name);
-        ImageView icon = (ImageView) view.findViewById(R.id.api_apps_adapter_item_icon);
-
-        String packageName = cursor.getString(cursor.getColumnIndex(ApiApps.PACKAGE_NAME));
-        if (packageName != null) {
-            // get application name
-            try {
-                ApplicationInfo ai = pm.getApplicationInfo(packageName, 0);
-
-                text.setText(pm.getApplicationLabel(ai));
-                icon.setImageDrawable(pm.getApplicationIcon(ai));
-            } catch (final NameNotFoundException e) {
-                // fallback
-                text.setText(packageName);
-            }
-        } else {
-            // fallback
-            text.setText(packageName);
-        }
-
-    }
-
-    @Override
-    public View newView(Context context, Cursor cursor, ViewGroup parent) {
-        return mInflater.inflate(R.layout.api_apps_adapter_list_item, null);
-    }
-
-}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/remote/WrongPackageSignatureException.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/remote/WrongPackageSignatureException.java
deleted file mode 100644
index cc08548e8..000000000
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/remote/WrongPackageSignatureException.java
+++ /dev/null
@@ -1,10 +0,0 @@
-package org.sufficientlysecure.keychain.service.remote;
-
-public class WrongPackageSignatureException extends Exception {
-
-    private static final long serialVersionUID = -8294642703122196028L;
-
-    public WrongPackageSignatureException(String message) {
-        super(message);
-    }
-}
\ No newline at end of file
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/CertifyKeyActivity.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/CertifyKeyActivity.java
index aab6b81d9..5dc06c16d 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/CertifyKeyActivity.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/CertifyKeyActivity.java
@@ -17,47 +17,47 @@
 
 package org.sufficientlysecure.keychain.ui;
 
-import java.util.Iterator;
-
-import org.spongycastle.openpgp.PGPPublicKeyRing;
-import org.spongycastle.openpgp.PGPSignature;
-import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.helper.Preferences;
-import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
-import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
-import org.sufficientlysecure.keychain.service.KeychainIntentService;
-import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
-import org.sufficientlysecure.keychain.service.PassphraseCacheService;
-import org.sufficientlysecure.keychain.ui.dialog.PassphraseDialogFragment;
-import org.sufficientlysecure.keychain.util.Log;
-
 import android.app.ProgressDialog;
 import android.content.Intent;
+import android.database.Cursor;
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Message;
 import android.os.Messenger;
+import android.support.v4.app.LoaderManager;
+import android.support.v4.content.CursorLoader;
+import android.support.v4.content.Loader;
 import android.support.v7.app.ActionBar;
 import android.support.v7.app.ActionBarActivity;
 import android.view.View;
 import android.view.View.OnClickListener;
-import android.widget.ArrayAdapter;
-import android.widget.CheckBox;
-import android.widget.CompoundButton;
+import android.widget.*;
 import android.widget.CompoundButton.OnCheckedChangeListener;
-import android.widget.Spinner;
-import android.widget.Toast;
-
 import com.beardedhen.androidbootstrap.BootstrapButton;
+import org.spongycastle.openpgp.PGPPublicKeyRing;
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.helper.OtherHelper;
+import org.sufficientlysecure.keychain.helper.Preferences;
+import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
+import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
+import org.sufficientlysecure.keychain.provider.KeychainContract;
+import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.service.KeychainIntentService;
+import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
+import org.sufficientlysecure.keychain.service.PassphraseCacheService;
+import org.sufficientlysecure.keychain.ui.adapter.ViewKeyUserIdsAdapter;
+import org.sufficientlysecure.keychain.ui.dialog.PassphraseDialogFragment;
+import org.sufficientlysecure.keychain.util.Log;
+
+import java.util.ArrayList;
 
 /**
  * Signs the specified public key with the specified secret master key
  */
 public class CertifyKeyActivity extends ActionBarActivity implements
-        SelectSecretKeyLayoutFragment.SelectSecretKeyCallback {
+        SelectSecretKeyLayoutFragment.SelectSecretKeyCallback, LoaderManager.LoaderCallbacks<Cursor> {
     private BootstrapButton mSignButton;
     private CheckBox mUploadKeyCheckbox;
     private Spinner mSelectKeyserverSpinner;
@@ -68,6 +68,12 @@ public class CertifyKeyActivity extends ActionBarActivity implements
     private long mPubKeyId = 0;
     private long mMasterKeyId = 0;
 
+    private ListView mUserIds;
+    private ViewKeyUserIdsAdapter mUserIdsAdapter;
+
+    private static final int LOADER_ID_KEYRING = 0;
+    private static final int LOADER_ID_USER_IDS = 1;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -87,7 +93,7 @@ public class CertifyKeyActivity extends ActionBarActivity implements
         mSelectKeyserverSpinner = (Spinner) findViewById(R.id.sign_key_keyserver);
         ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
                 android.R.layout.simple_spinner_item, Preferences.getPreferences(this)
-                        .getKeyServers());
+                .getKeyServers());
         adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
         mSelectKeyserverSpinner.setAdapter(adapter);
 
@@ -131,9 +137,18 @@ public class CertifyKeyActivity extends ActionBarActivity implements
             finish();
             return;
         }
+        Log.e(Constants.TAG, "uri: " + mDataUri);
 
         PGPPublicKeyRing signKey = (PGPPublicKeyRing) ProviderHelper.getPGPKeyRing(this, mDataUri);
 
+        mUserIds = (ListView) findViewById(R.id.user_ids);
+
+        mUserIdsAdapter = new ViewKeyUserIdsAdapter(this, null, 0, true);
+        mUserIds.setAdapter(mUserIdsAdapter);
+
+        getSupportLoaderManager().initLoader(LOADER_ID_KEYRING, null, this);
+        getSupportLoaderManager().initLoader(LOADER_ID_USER_IDS, null, this);
+
         if (signKey != null) {
             mPubKeyId = PgpKeyHelper.getMasterKey(signKey).getKeyID();
         }
@@ -144,6 +159,78 @@ public class CertifyKeyActivity extends ActionBarActivity implements
         }
     }
 
+    static final String[] KEYRING_PROJECTION =
+            new String[] {
+                    KeychainContract.KeyRings._ID,
+                    KeychainContract.KeyRings.MASTER_KEY_ID,
+                    KeychainContract.Keys.FINGERPRINT,
+                    KeychainContract.UserIds.USER_ID
+            };
+    static final int INDEX_MASTER_KEY_ID = 1;
+    static final int INDEX_FINGERPRINT = 2;
+    static final int INDEX_USER_ID = 3;
+
+    static final String[] USER_IDS_PROJECTION =
+            new String[]{
+                    KeychainContract.UserIds._ID,
+                    KeychainContract.UserIds.USER_ID,
+                    KeychainContract.UserIds.RANK
+            };
+    static final String USER_IDS_SORT_ORDER =
+            KeychainContract.UserIds.RANK + " ASC";
+
+    @Override
+    public Loader<Cursor> onCreateLoader(int id, Bundle args) {
+        switch(id) {
+            case LOADER_ID_KEYRING:
+                return new CursorLoader(this, mDataUri, KEYRING_PROJECTION, null, null, null);
+            case LOADER_ID_USER_IDS: {
+                Uri baseUri = KeychainContract.UserIds.buildUserIdsUri(mDataUri);
+                return new CursorLoader(this, baseUri, USER_IDS_PROJECTION, null, null, USER_IDS_SORT_ORDER);
+            }
+        }
+        return null;
+    }
+
+    @Override
+    public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
+        switch(loader.getId()) {
+            case LOADER_ID_KEYRING:
+                // the first key here is our master key
+                if (data.moveToFirst()) {
+                    // TODO: put findViewById in onCreate!
+
+                    long keyId = data.getLong(INDEX_MASTER_KEY_ID);
+                    String keyIdStr = PgpKeyHelper.convertKeyIdToHexShort(keyId);
+                    ((TextView) findViewById(R.id.key_id)).setText(keyIdStr);
+
+                    String mainUserId = data.getString(INDEX_USER_ID);
+                    ((TextView) findViewById(R.id.main_user_id)).setText(mainUserId);
+
+                    byte[] fingerprintBlob = data.getBlob(INDEX_FINGERPRINT);
+                    if (fingerprintBlob == null) {
+                        // FALLBACK for old database entries
+                        fingerprintBlob = ProviderHelper.getFingerprint(this, mDataUri);
+                    }
+                    String fingerprint = PgpKeyHelper.convertFingerprintToHex(fingerprintBlob);
+                    ((TextView) findViewById(R.id.fingerprint)).setText(PgpKeyHelper.colorizeFingerprint(fingerprint));
+                }
+                break;
+            case LOADER_ID_USER_IDS:
+                mUserIdsAdapter.swapCursor(data);
+                break;
+        }
+    }
+
+    @Override
+    public void onLoaderReset(Loader<Cursor> loader) {
+        switch(loader.getId()) {
+            case LOADER_ID_USER_IDS:
+                mUserIdsAdapter.swapCursor(null);
+                break;
+        }
+    }
+
     private void showPassphraseDialog(final long secretKeyId) {
         // Message is received after passphrase is cached
         Handler returnHandler = new Handler() {
@@ -179,6 +266,7 @@ public class CertifyKeyActivity extends ActionBarActivity implements
             // if we have already signed this key, dont bother doing it again
             boolean alreadySigned = false;
 
+            /* todo: reconsider this at a later point when certs are in the db
             @SuppressWarnings("unchecked")
             Iterator<PGPSignature> itr = pubring.getPublicKey(mPubKeyId).getSignatures();
             while (itr.hasNext()) {
@@ -188,6 +276,7 @@ public class CertifyKeyActivity extends ActionBarActivity implements
                     break;
                 }
             }
+            */
 
             if (!alreadySigned) {
                 /*
@@ -215,6 +304,15 @@ public class CertifyKeyActivity extends ActionBarActivity implements
      * kicks off the actual signing process on a background thread
      */
     private void startSigning() {
+
+        // Bail out if there is not at least one user id selected
+        ArrayList<String> userIds = mUserIdsAdapter.getSelectedUserIds();
+        if(userIds.isEmpty()) {
+            Toast.makeText(CertifyKeyActivity.this, "No User IDs to sign selected!",
+                    Toast.LENGTH_SHORT).show();
+            return;
+        }
+
         // Send all information needed to service to sign key in other thread
         Intent intent = new Intent(this, KeychainIntentService.class);
 
@@ -225,14 +323,15 @@ public class CertifyKeyActivity extends ActionBarActivity implements
 
         data.putLong(KeychainIntentService.CERTIFY_KEY_MASTER_KEY_ID, mMasterKeyId);
         data.putLong(KeychainIntentService.CERTIFY_KEY_PUB_KEY_ID, mPubKeyId);
+        data.putStringArrayList(KeychainIntentService.CERTIFY_KEY_UIDS, userIds);
 
         intent.putExtra(KeychainIntentService.EXTRA_DATA, data);
 
-        // Message is received after signing is done in ApgService
+        // Message is received after signing is done in KeychainIntentService
         KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(this,
-                R.string.progress_signing, ProgressDialog.STYLE_SPINNER) {
+                getString(R.string.progress_signing), ProgressDialog.STYLE_SPINNER) {
             public void handleMessage(Message message) {
-                // handle messages by standard ApgHandler first
+                // handle messages by standard KeychainIntentServiceHandler first
                 super.handleMessage(message);
 
                 if (message.arg1 == KeychainIntentServiceHandler.MESSAGE_OKAY) {
@@ -249,7 +348,7 @@ public class CertifyKeyActivity extends ActionBarActivity implements
                         finish();
                     }
                 }
-            };
+            }
         };
 
         // Create a new Messenger for the communication back
@@ -281,11 +380,11 @@ public class CertifyKeyActivity extends ActionBarActivity implements
 
         intent.putExtra(KeychainIntentService.EXTRA_DATA, data);
 
-        // Message is received after uploading is done in ApgService
+        // Message is received after uploading is done in KeychainIntentService
         KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(this,
-                R.string.progress_exporting, ProgressDialog.STYLE_HORIZONTAL) {
+                getString(R.string.progress_exporting), ProgressDialog.STYLE_HORIZONTAL) {
             public void handleMessage(Message message) {
-                // handle messages by standard ApgHandler first
+                // handle messages by standard KeychainIntentServiceHandler first
                 super.handleMessage(message);
 
                 if (message.arg1 == KeychainIntentServiceHandler.MESSAGE_OKAY) {
@@ -295,7 +394,7 @@ public class CertifyKeyActivity extends ActionBarActivity implements
                     setResult(RESULT_OK);
                     finish();
                 }
-            };
+            }
         };
 
         // Create a new Messenger for the communication back
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptActivity.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptActivity.java
index 42288ca37..9b3b00c19 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptActivity.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptActivity.java
@@ -17,14 +17,20 @@
 
 package org.sufficientlysecure.keychain.ui;
 
-import java.io.BufferedInputStream;
-import java.io.ByteArrayInputStream;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.InputStream;
-import java.util.regex.Matcher;
-
+import android.annotation.SuppressLint;
+import android.app.ProgressDialog;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+import android.os.Messenger;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.animation.AnimationUtils;
+import android.widget.*;
+import com.beardedhen.androidbootstrap.BootstrapButton;
+import com.devspark.appmsg.AppMsg;
 import org.openintents.openpgp.OpenPgpSignatureResult;
 import org.spongycastle.openpgp.PGPPublicKeyRing;
 import org.sufficientlysecure.keychain.Constants;
@@ -33,10 +39,10 @@ import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.compatibility.ClipboardReflection;
 import org.sufficientlysecure.keychain.helper.ActionBarHelper;
 import org.sufficientlysecure.keychain.helper.FileHelper;
+import org.sufficientlysecure.keychain.pgp.PgpDecryptVerify;
 import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyResult;
 import org.sufficientlysecure.keychain.pgp.PgpHelper;
 import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
-import org.sufficientlysecure.keychain.pgp.PgpDecryptVerify;
 import org.sufficientlysecure.keychain.pgp.exception.NoAsymmetricEncryptionException;
 import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
 import org.sufficientlysecure.keychain.provider.ProviderHelper;
@@ -48,27 +54,8 @@ import org.sufficientlysecure.keychain.ui.dialog.FileDialogFragment;
 import org.sufficientlysecure.keychain.ui.dialog.PassphraseDialogFragment;
 import org.sufficientlysecure.keychain.util.Log;
 
-import android.annotation.SuppressLint;
-import android.app.ProgressDialog;
-import android.content.Intent;
-import android.net.Uri;
-import android.os.Bundle;
-import android.os.Handler;
-import android.os.Message;
-import android.os.Messenger;
-import android.view.View;
-import android.view.View.OnClickListener;
-import android.view.animation.AnimationUtils;
-import android.widget.CheckBox;
-import android.widget.EditText;
-import android.widget.ImageView;
-import android.widget.RelativeLayout;
-import android.widget.TextView;
-import android.widget.Toast;
-import android.widget.ViewFlipper;
-
-import com.beardedhen.androidbootstrap.BootstrapButton;
-import com.devspark.appmsg.AppMsg;
+import java.io.*;
+import java.util.regex.Matcher;
 
 @SuppressLint("NewApi")
 public class DecryptActivity extends DrawerActivity {
@@ -364,7 +351,7 @@ public class DecryptActivity extends DrawerActivity {
                 }
             } else {
                 Log.e(Constants.TAG,
-                        "Direct binary data without actual file in filesystem is not supported. Please use the Remote Service API!");
+                "Direct binary data without actual file in filesystem is not supported. Please use the Remote Service API!");
                 Toast.makeText(this, R.string.error_only_files_are_supported, Toast.LENGTH_LONG)
                         .show();
                 // end activity
@@ -383,7 +370,7 @@ public class DecryptActivity extends DrawerActivity {
         if (filename.endsWith(".asc") || filename.endsWith(".gpg") || filename.endsWith(".pgp")) {
             filename = filename.substring(0, filename.length() - 4);
         }
-        mOutputFilename = Constants.path.APP_DIR + "/" + filename;
+        mOutputFilename = Constants.Path.APP_DIR + "/" + filename;
     }
 
     private void updateSource() {
@@ -456,8 +443,7 @@ public class DecryptActivity extends DrawerActivity {
         getDecryptionKeyFromInputStream();
 
         // if we need a symmetric passphrase or a passphrase to use a secret key ask for it
-        if (mSecretKeyId == Id.key.symmetric
-                || PassphraseCacheService.getCachedPassphrase(this, mSecretKeyId) == null) {
+        if (mAssumeSymmetricEncryption || PassphraseCacheService.getCachedPassphrase(this, mSecretKeyId) == null) {
             showPassphraseDialog();
         } else {
             if (mDecryptTarget == Id.target.file) {
@@ -507,6 +493,7 @@ public class DecryptActivity extends DrawerActivity {
      * TODO: Rework function, remove global variables
      */
     private void getDecryptionKeyFromInputStream() {
+        mAssumeSymmetricEncryption = false;
         InputStream inStream = null;
         if (mContentUri != null) {
             try {
@@ -546,7 +533,6 @@ public class DecryptActivity extends DrawerActivity {
                 if (mSecretKeyId == Id.key.none) {
                     throw new PgpGeneralException(getString(R.string.error_no_secret_key_found));
                 }
-                mAssumeSymmetricEncryption = false;
             } catch (NoAsymmetricEncryptionException e) {
                 if (inStream.markSupported()) {
                     inStream.reset();
@@ -559,6 +545,7 @@ public class DecryptActivity extends DrawerActivity {
                 mAssumeSymmetricEncryption = true;
             }
         } catch (Exception e) {
+            Log.e(Constants.TAG, "error while reading decryption key from input stream", e);
             AppMsg.makeText(this, getString(R.string.error_message, e.getMessage()),
                     AppMsg.STYLE_ALERT).show();
         }
@@ -644,11 +631,11 @@ public class DecryptActivity extends DrawerActivity {
 
         intent.putExtra(KeychainIntentService.EXTRA_DATA, data);
 
-        // Message is received after encrypting is done in ApgService
+        // Message is received after encrypting is done in KeychainIntentService
         KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(this,
-                R.string.progress_decrypting, ProgressDialog.STYLE_HORIZONTAL) {
+                getString(R.string.progress_decrypting), ProgressDialog.STYLE_HORIZONTAL) {
             public void handleMessage(Message message) {
-                // handle messages by standard ApgHandler first
+                // handle messages by standard KeychainIntentServiceHandler first
                 super.handleMessage(message);
 
                 if (message.arg1 == KeychainIntentServiceHandler.MESSAGE_OKAY) {
@@ -744,8 +731,6 @@ public class DecryptActivity extends DrawerActivity {
                     }
                 }
             }
-
-            ;
         };
 
         // Create a new Messenger for the communication back
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/DrawerActivity.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/DrawerActivity.java
index 08ca262c3..f01e67449 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/DrawerActivity.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/DrawerActivity.java
@@ -17,30 +17,21 @@
 
 package org.sufficientlysecure.keychain.ui;
 
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.service.remote.RegisteredAppsListActivity;
-import org.sufficientlysecure.keychain.util.Log;
-
 import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
 import android.content.res.Configuration;
+import android.graphics.Color;
 import android.os.Bundle;
 import android.support.v4.app.ActionBarDrawerToggle;
 import android.support.v4.view.GravityCompat;
 import android.support.v4.widget.DrawerLayout;
 import android.support.v7.app.ActionBarActivity;
-import android.view.LayoutInflater;
-import android.view.Menu;
-import android.view.MenuItem;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.AdapterView;
-import android.widget.ArrayAdapter;
-import android.widget.ListView;
-import android.widget.TextView;
-
+import android.view.*;
+import android.widget.*;
 import com.beardedhen.androidbootstrap.FontAwesomeText;
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
 
 public class DrawerActivity extends ActionBarActivity {
     private DrawerLayout mDrawerLayout;
@@ -49,10 +40,8 @@ public class DrawerActivity extends ActionBarActivity {
 
     private CharSequence mDrawerTitle;
     private CharSequence mTitle;
+    private boolean mIsDrawerLocked = false;
 
-    private static Class[] mItemsClass = new Class[] { KeyListPublicActivity.class,
-            EncryptActivity.class, DecryptActivity.class, ImportKeysActivity.class,
-            KeyListSecretActivity.class, RegisteredAppsListActivity.class };
     private Class mSelectedItem;
 
     private static final int MENU_ID_PREFERENCE = 222;
@@ -62,18 +51,29 @@ public class DrawerActivity extends ActionBarActivity {
         mDrawerTitle = getString(R.string.app_name);
         mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
         mDrawerList = (ListView) findViewById(R.id.left_drawer);
+        ViewGroup viewGroup = (ViewGroup) findViewById(R.id.content_frame);
+        int leftMarginLoaded = ((ViewGroup.MarginLayoutParams) viewGroup.getLayoutParams()).leftMargin;
+        int leftMarginInTablets = (int) getResources().getDimension(R.dimen.drawer_size);
+        int errorInMarginAllowed = 5;
+
+        // if the left margin of the loaded layout is close to the
+        // one used in tablets then set drawer as open and locked
+        if( Math.abs(leftMarginLoaded - leftMarginInTablets) < errorInMarginAllowed) {
+            mDrawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_OPEN, mDrawerList);
+            mDrawerLayout.setScrimColor(Color.TRANSPARENT);
+            mIsDrawerLocked = true;
+        } else {
+            // set a custom shadow that overlays the main content when the drawer opens
+            mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);
+            mIsDrawerLocked = false;
+        }
 
-        // set a custom shadow that overlays the main content when the drawer
-        // opens
-        mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);
-
-        NavItem mItemIconTexts[] = new NavItem[] {
+        NavItem mItemIconTexts[] = new NavItem[]{
                 new NavItem("fa-user", getString(R.string.nav_contacts)),
                 new NavItem("fa-lock", getString(R.string.nav_encrypt)),
                 new NavItem("fa-unlock", getString(R.string.nav_decrypt)),
                 new NavItem("fa-download", getString(R.string.nav_import)),
-                new NavItem("fa-key", getString(R.string.nav_secret_keys)),
-                new NavItem("fa-android", getString(R.string.nav_apps)) };
+                new NavItem("fa-android", getString(R.string.nav_apps))};
 
         mDrawerList.setAdapter(new NavigationDrawerAdapter(this, R.layout.drawer_list_item,
                 mItemIconTexts));
@@ -81,32 +81,24 @@ public class DrawerActivity extends ActionBarActivity {
         mDrawerList.setOnItemClickListener(new DrawerItemClickListener());
 
         // enable ActionBar app icon to behave as action to toggle nav drawer
-        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
-        getSupportActionBar().setHomeButtonEnabled(true);
+        // if the drawer is not locked
+        if ( !mIsDrawerLocked ) {
+            getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+            getSupportActionBar().setHomeButtonEnabled(true);
+        }
 
         // ActionBarDrawerToggle ties together the the proper interactions
         // between the sliding drawer and the action bar app icon
         mDrawerToggle = new ActionBarDrawerToggle(this, /* host Activity */
-        mDrawerLayout, /* DrawerLayout object */
-        R.drawable.ic_drawer, /* nav drawer image to replace 'Up' caret */
-        R.string.drawer_open, /* "open drawer" description for accessibility */
-        R.string.drawer_close /* "close drawer" description for accessibility */
+                mDrawerLayout, /* DrawerLayout object */
+                R.drawable.ic_drawer, /* nav drawer image to replace 'Up' caret */
+                R.string.drawer_open, /* "open drawer" description for accessibility */
+                R.string.drawer_close /* "close drawer" description for accessibility */
         ) {
             public void onDrawerClosed(View view) {
                 getSupportActionBar().setTitle(mTitle);
-                // creates call to onPrepareOptionsMenu()
-                supportInvalidateOptionsMenu();
-
-                // call intent activity if selected
-                if(mSelectedItem != null) {
-                    finish();
-                    overridePendingTransition(0, 0);
 
-                    Intent intent = new Intent(DrawerActivity.this, mSelectedItem);
-                    startActivity(intent);
-                    // disable animation of activity start
-                    overridePendingTransition(0, 0);
-                }
+                callIntentForDrawerItem(mSelectedItem);
             }
 
             public void onDrawerOpened(View drawerView) {
@@ -116,13 +108,40 @@ public class DrawerActivity extends ActionBarActivity {
                 supportInvalidateOptionsMenu();
             }
         };
-        mDrawerLayout.setDrawerListener(mDrawerToggle);
 
+        if ( !mIsDrawerLocked ) {
+            mDrawerLayout.setDrawerListener(mDrawerToggle);
+        } else {
+            // If the drawer is locked open make it un-focusable
+            // so that it doesn't consume all the Back button presses
+            mDrawerLayout.setFocusableInTouchMode(false);
+        }
         // if (savedInstanceState == null) {
         // selectItem(0);
         // }
     }
 
+    /**
+     * Uses startActivity to call the Intent of the given class
+     * @param drawerItem the class of the drawer item you want to load. Based on Constants.DrawerItems.*
+     */
+    public void callIntentForDrawerItem(Class drawerItem) {
+        // creates call to onPrepareOptionsMenu()
+        supportInvalidateOptionsMenu();
+
+        // call intent activity if selected
+        if (drawerItem != null) {
+            finish();
+            overridePendingTransition(0, 0);
+
+            Intent intent = new Intent(this, drawerItem);
+            startActivity(intent);
+
+            // disable animation of activity start
+            overridePendingTransition(0, 0);
+        }
+    }
+
     @Override
     public boolean onCreateOptionsMenu(Menu menu) {
         menu.add(42, MENU_ID_PREFERENCE, 100, R.string.menu_preferences);
@@ -150,18 +169,18 @@ public class DrawerActivity extends ActionBarActivity {
         }
 
         switch (item.getItemId()) {
-        case MENU_ID_PREFERENCE: {
-            Intent intent = new Intent(this, PreferencesActivity.class);
-            startActivity(intent);
-            return true;
-        }
-        case MENU_ID_HELP: {
-            Intent intent = new Intent(this, HelpActivity.class);
-            startActivity(intent);
-            return true;
-        }
-        default:
-            return super.onOptionsItemSelected(item);
+            case MENU_ID_PREFERENCE: {
+                Intent intent = new Intent(this, PreferencesActivity.class);
+                startActivity(intent);
+                return true;
+            }
+            case MENU_ID_HELP: {
+                Intent intent = new Intent(this, HelpActivity.class);
+                startActivity(intent);
+                return true;
+            }
+            default:
+                return super.onOptionsItemSelected(item);
         }
 
         // Handle action buttons
@@ -193,10 +212,18 @@ public class DrawerActivity extends ActionBarActivity {
     private void selectItem(int position) {
         // update selected item and title, then close the drawer
         mDrawerList.setItemChecked(position, true);
-        // setTitle(mDrawerTitles[position]);
-        mDrawerLayout.closeDrawer(mDrawerList);
         // set selected class
-        mSelectedItem = mItemsClass[position];
+        mSelectedItem = Constants.DrawerItems.ARRAY[position];
+
+        // setTitle(mDrawerTitles[position]);
+        // If drawer isn't locked just close the drawer and
+        // it will move to the selected item by itself (via drawer toggle listener)
+        if ( !mIsDrawerLocked ) {
+            mDrawerLayout.closeDrawer(mDrawerList);
+        // else move to the selected item yourself
+        } else {
+            callIntentForDrawerItem(mSelectedItem);
+        }
     }
 
     /**
@@ -229,15 +256,15 @@ public class DrawerActivity extends ActionBarActivity {
     }
 
     private class NavigationDrawerAdapter extends ArrayAdapter<NavItem> {
-        Context context;
-        int layoutResourceId;
-        NavItem data[] = null;
+        Context mContext;
+        int mLayoutResourceId;
+        NavItem mData[] = null;
 
         public NavigationDrawerAdapter(Context context, int layoutResourceId, NavItem[] data) {
             super(context, layoutResourceId, data);
-            this.layoutResourceId = layoutResourceId;
-            this.context = context;
-            this.data = data;
+            this.mLayoutResourceId = layoutResourceId;
+            this.mContext = context;
+            this.mData = data;
         }
 
         @Override
@@ -246,21 +273,21 @@ public class DrawerActivity extends ActionBarActivity {
             NavItemHolder holder = null;
 
             if (row == null) {
-                LayoutInflater inflater = ((Activity) context).getLayoutInflater();
-                row = inflater.inflate(layoutResourceId, parent, false);
+                LayoutInflater inflater = ((Activity) mContext).getLayoutInflater();
+                row = inflater.inflate(mLayoutResourceId, parent, false);
 
                 holder = new NavItemHolder();
-                holder.img = (FontAwesomeText) row.findViewById(R.id.drawer_item_icon);
-                holder.txtTitle = (TextView) row.findViewById(R.id.drawer_item_text);
+                holder.mImg = (FontAwesomeText) row.findViewById(R.id.drawer_item_icon);
+                holder.mTxtTitle = (TextView) row.findViewById(R.id.drawer_item_text);
 
                 row.setTag(holder);
             } else {
                 holder = (NavItemHolder) row.getTag();
             }
 
-            NavItem item = data[position];
-            holder.txtTitle.setText(item.title);
-            holder.img.setIcon(item.icon);
+            NavItem item = mData[position];
+            holder.mTxtTitle.setText(item.title);
+            holder.mImg.setIcon(item.icon);
 
             return row;
         }
@@ -268,8 +295,8 @@ public class DrawerActivity extends ActionBarActivity {
     }
 
     static class NavItemHolder {
-        FontAwesomeText img;
-        TextView txtTitle;
+        FontAwesomeText mImg;
+        TextView mTxtTitle;
     }
 
-}
\ No newline at end of file
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/EditKeyActivity.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/EditKeyActivity.java
index 0726897c3..b7fffc7ff 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/EditKeyActivity.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/EditKeyActivity.java
@@ -23,6 +23,25 @@ import java.util.List;
 import java.util.Vector;
 
 import org.spongycastle.bcpg.sig.KeyFlags;
+import android.app.Activity;
+import android.app.ProgressDialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+import android.os.Messenger;
+import android.support.v7.app.ActionBarActivity;
+import android.view.*;
+import android.view.View.OnClickListener;
+import android.widget.CheckBox;
+import android.widget.CompoundButton;
+import android.widget.CompoundButton.OnCheckedChangeListener;
+import android.widget.LinearLayout;
+import android.widget.Toast;
+import com.beardedhen.androidbootstrap.BootstrapButton;
 import org.spongycastle.openpgp.PGPSecretKey;
 import org.spongycastle.openpgp.PGPSecretKeyRing;
 import org.sufficientlysecure.keychain.Constants;
@@ -32,6 +51,7 @@ import org.sufficientlysecure.keychain.helper.ExportHelper;
 import org.sufficientlysecure.keychain.pgp.PgpConversionHelper;
 import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
 import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
+import org.sufficientlysecure.keychain.provider.KeychainContract;
 import org.sufficientlysecure.keychain.provider.ProviderHelper;
 import org.sufficientlysecure.keychain.service.KeychainIntentService;
 import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
@@ -49,31 +69,12 @@ import org.sufficientlysecure.keychain.util.IterableIterator;
 import org.sufficientlysecure.keychain.util.Log;
 
 import android.app.AlertDialog;
-import android.app.Activity;
-import android.app.ProgressDialog;
-import android.content.Context;
-import android.content.DialogInterface;
-import android.content.Intent;
-import android.net.Uri;
-import android.os.Bundle;
-import android.os.Handler;
-import android.os.Message;
-import android.os.Messenger;
-import android.support.v7.app.ActionBarActivity;
 import android.support.v4.app.ActivityCompat;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
-import android.view.View.OnClickListener;
 import android.view.ViewGroup;
-import android.widget.CheckBox;
-import android.widget.CompoundButton;
-import android.widget.CompoundButton.OnCheckedChangeListener;
-import android.widget.LinearLayout;
-import android.widget.Toast;
-
-import com.beardedhen.androidbootstrap.BootstrapButton;
 
 public class EditKeyActivity extends ActionBarActivity implements EditorListener {
 
@@ -113,7 +114,7 @@ public class EditKeyActivity extends ActionBarActivity implements EditorListener
     Vector<String> mUserIds;
     Vector<PGPSecretKey> mKeys;
     Vector<Integer> mKeysUsages;
-    boolean masterCanSign = true;
+    boolean mMasterCanSign = true;
 
     ExportHelper mExportHelper;
 
@@ -169,7 +170,7 @@ public class EditKeyActivity extends ActionBarActivity implements EditorListener
 
     /**
      * Handle intent action to create new key
-     * 
+     *
      * @param intent
      */
     private void handleActionCreateKey(Intent intent) {
@@ -211,9 +212,10 @@ public class EditKeyActivity extends ActionBarActivity implements EditorListener
 
                     serviceIntent.putExtra(KeychainIntentService.EXTRA_DATA, data);
 
-                    // Message is received after generating is done in ApgService
+                    // Message is received after generating is done in KeychainIntentService
                     KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(
-                            this, R.string.progress_generating, ProgressDialog.STYLE_SPINNER, true,
+                            this, getResources().getQuantityString(R.plurals.progress_generating, 1),
+                            ProgressDialog.STYLE_HORIZONTAL, true,
 
                             new DialogInterface.OnCancelListener() {
                                 @Override
@@ -227,7 +229,7 @@ public class EditKeyActivity extends ActionBarActivity implements EditorListener
 
                         @Override
                         public void handleMessage(Message message) {
-                            // handle messages by standard ApgHandler first
+                            // handle messages by standard KeychainIntentServiceHandler first
                             super.handleMessage(message);
 
                             if (message.arg1 == KeychainIntentServiceHandler.MESSAGE_OKAY) {
@@ -272,7 +274,7 @@ public class EditKeyActivity extends ActionBarActivity implements EditorListener
 
     /**
      * Handle intent action to edit existing key
-     * 
+     *
      * @param intent
      */
     private void handleActionEditKey(Intent intent) {
@@ -283,12 +285,10 @@ public class EditKeyActivity extends ActionBarActivity implements EditorListener
         } else {
             Log.d(Constants.TAG, "uri: " + mDataUri);
 
-            long keyRingRowId = Long.valueOf(mDataUri.getLastPathSegment());
-
             // get master key id using row id
-            long masterKeyId = ProviderHelper.getSecretMasterKeyId(this, keyRingRowId);
+            long masterKeyId = ProviderHelper.getMasterKeyId(this, mDataUri);
 
-            masterCanSign = ProviderHelper.getSecretMasterKeyCanCertify(this, keyRingRowId);
+            mMasterCanSign = ProviderHelper.getMasterKeyCanCertify(this, mDataUri);
             finallyEdit(masterKeyId);
         }
     }
@@ -350,11 +350,16 @@ public class EditKeyActivity extends ActionBarActivity implements EditorListener
             if (needsSaving()) {
                 Toast.makeText(this, R.string.error_save_first, Toast.LENGTH_LONG).show();
             } else {
-                mExportHelper.showExportKeysDialog(mDataUri, Id.type.secret_key, Constants.path.APP_DIR
-                        + "/secexport.asc");
+                long masterKeyId = ProviderHelper.getMasterKeyId(this, mDataUri);
+                long[] ids = new long[]{masterKeyId};
+                mExportHelper.showExportKeysDialog(ids, Id.type.secret_key, Constants.Path.APP_DIR_FILE_SEC,
+                        null);
+                return true;
             }
             return true;
-        case R.id.menu_key_edit_delete: {
+        case R.id.menu_key_edit_delete:
+            long rowId= ProviderHelper.getRowId(this,mDataUri);
+            Uri convertUri = KeychainContract.KeyRings.buildSecretKeyRingsUri(Long.toString(rowId));
             // Message is received after key is deleted
             Handler returnHandler = new Handler() {
                 @Override
@@ -363,12 +368,10 @@ public class EditKeyActivity extends ActionBarActivity implements EditorListener
                         setResult(RESULT_CANCELED);
                         finish();
                     }
-                }
-            };
-
-            mExportHelper.deleteKey(mDataUri, Id.type.secret_key, returnHandler);
+                }};
+            mExportHelper.deleteKey(convertUri, returnHandler);
             return true;
-        }
+
         case R.id.menu_key_edit_save:
             saveClicked();
             return true;
@@ -407,8 +410,8 @@ public class EditKeyActivity extends ActionBarActivity implements EditorListener
         }
 
         mCurrentPassphrase = "";
-
         buildLayout(false);
+
         mIsPassPhraseSet = PassphraseCacheService.hasPassphrase(this, masterKeyId);
         if (!mIsPassPhraseSet) {
             // check "no passphrase" checkbox and remove button
@@ -466,20 +469,23 @@ public class EditKeyActivity extends ActionBarActivity implements EditorListener
         // find views
         mChangePassphrase = (BootstrapButton) findViewById(R.id.edit_key_btn_change_passphrase);
         mNoPassphrase = (CheckBox) findViewById(R.id.edit_key_no_passphrase);
-
         // Build layout based on given userIds and keys
+
         LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
 
         LinearLayout container = (LinearLayout) findViewById(R.id.edit_key_container);
+        if(mIsPassPhraseSet){
+            mChangePassphrase.setText(getString(R.string.btn_change_passphrase));
+        }
         mUserIdsView = (SectionView) inflater.inflate(R.layout.edit_key_section, container, false);
         mUserIdsView.setType(Id.type.user_id);
-        mUserIdsView.setCanEdit(masterCanSign);
+        mUserIdsView.setCanEdit(mMasterCanSign);
         mUserIdsView.setUserIds(mUserIds);
         mUserIdsView.setEditorListener(this);
         container.addView(mUserIdsView);
         mKeysView = (SectionView) inflater.inflate(R.layout.edit_key_section, container, false);
         mKeysView.setType(Id.type.key);
-        mKeysView.setCanEdit(masterCanSign);
+        mKeysView.setCanEdit(mMasterCanSign);
         mKeysView.setKeys(mKeys, mKeysUsages, newKeys);
         mKeysView.setEditorListener(this);
         container.addView(mKeysView);
@@ -602,17 +608,16 @@ public class EditKeyActivity extends ActionBarActivity implements EditorListener
 
             // fill values for this action
             Bundle data = new Bundle();
-
-            data.putBoolean(KeychainIntentService.SAVE_KEYRING_CAN_SIGN, masterCanSign);
+            data.putBoolean(KeychainIntentService.SAVE_KEYRING_CAN_SIGN, mMasterCanSign);
             data.putParcelable(KeychainIntentService.SAVE_KEYRING_PARCEL, saveParams);
 
             intent.putExtra(KeychainIntentService.EXTRA_DATA, data);
 
-            // Message is received after saving is done in ApgService
+            // Message is received after saving is done in KeychainIntentService
             KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(this,
-                    R.string.progress_saving, ProgressDialog.STYLE_HORIZONTAL) {
+                    getString(R.string.progress_saving), ProgressDialog.STYLE_HORIZONTAL) {
                 public void handleMessage(Message message) {
-                    // handle messages by standard ApgHandler first
+                    // handle messages by standard KeychainIntentServiceHandler first
                     super.handleMessage(message);
 
                     if (message.arg1 == KeychainIntentServiceHandler.MESSAGE_OKAY) {
@@ -640,8 +645,9 @@ public class EditKeyActivity extends ActionBarActivity implements EditorListener
             // start service with intent
             startService(intent);
         } catch (PgpGeneralException e) {
+            Log.e(Constants.TAG, getString(R.string.error_message, e.getMessage()));
             Toast.makeText(this, getString(R.string.error_message, e.getMessage()),
-                   Toast.LENGTH_SHORT).show();
+                    Toast.LENGTH_SHORT).show();
         }
     }
 
@@ -679,7 +685,7 @@ public class EditKeyActivity extends ActionBarActivity implements EditorListener
 
     /**
      * Returns user ids from the SectionView
-     * 
+     *
      * @param userIdsView
      * @return
      */
@@ -692,11 +698,7 @@ public class EditKeyActivity extends ActionBarActivity implements EditorListener
         for (int i = 0; i < userIdEditors.getChildCount(); ++i) {
             UserIdEditor editor = (UserIdEditor) userIdEditors.getChildAt(i);
             String userId;
-            try {
-                userId = editor.getValue();
-            } catch (UserIdEditor.InvalidEmailException e) {
-                throw new PgpGeneralException(e.getMessage());
-            }
+            userId = editor.getValue();
 
             if (editor.isMainUserId()) {
                 userIds.add(0, userId);
@@ -719,7 +721,7 @@ public class EditKeyActivity extends ActionBarActivity implements EditorListener
 
     /**
      * Returns keys from the SectionView
-     * 
+     *
      * @param keysView
      * @return
      */
@@ -742,7 +744,7 @@ public class EditKeyActivity extends ActionBarActivity implements EditorListener
 
     /**
      * Returns usage selections of keys from the SectionView
-     * 
+     *
      * @param keysView
      * @return
      */
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptActivity.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptActivity.java
index faac9b157..4f18f69d7 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptActivity.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptActivity.java
@@ -17,9 +17,22 @@
 
 package org.sufficientlysecure.keychain.ui;
 
-import java.io.File;
-import java.util.Vector;
-
+import android.app.ProgressDialog;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+import android.os.Messenger;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.animation.AlphaAnimation;
+import android.view.animation.Animation;
+import android.view.animation.AnimationUtils;
+import android.widget.*;
+import com.beardedhen.androidbootstrap.BootstrapButton;
+import com.beardedhen.androidbootstrap.FontAwesomeText;
+import com.devspark.appmsg.AppMsg;
 import org.spongycastle.openpgp.PGPPublicKey;
 import org.spongycastle.openpgp.PGPPublicKeyRing;
 import org.spongycastle.openpgp.PGPSecretKey;
@@ -43,27 +56,8 @@ import org.sufficientlysecure.keychain.ui.dialog.PassphraseDialogFragment;
 import org.sufficientlysecure.keychain.util.Choice;
 import org.sufficientlysecure.keychain.util.Log;
 
-import android.app.ProgressDialog;
-import android.content.Intent;
-import android.net.Uri;
-import android.os.Bundle;
-import android.os.Handler;
-import android.os.Message;
-import android.os.Messenger;
-import android.view.View;
-import android.view.View.OnClickListener;
-import android.view.animation.AnimationUtils;
-import android.widget.ArrayAdapter;
-import android.widget.CheckBox;
-import android.widget.EditText;
-import android.widget.ImageView;
-import android.widget.Spinner;
-import android.widget.TextView;
-import android.widget.Toast;
-import android.widget.ViewFlipper;
-
-import com.beardedhen.androidbootstrap.BootstrapButton;
-import com.devspark.appmsg.AppMsg;
+import java.io.File;
+import java.util.Vector;
 
 public class EncryptActivity extends DrawerActivity {
 
@@ -108,6 +102,7 @@ public class EncryptActivity extends DrawerActivity {
 
     private EditText mFilename = null;
     private CheckBox mDeleteAfter = null;
+    private CheckBox mShareAfter = null;
     private BootstrapButton mBrowse = null;
 
     private String mInputFilename = null;
@@ -602,11 +597,11 @@ public class EncryptActivity extends DrawerActivity {
 
         intent.putExtra(KeychainIntentService.EXTRA_DATA, data);
 
-        // Message is received after encrypting is done in ApgService
+        // Message is received after encrypting is done in KeychainIntentService
         KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(this,
-                R.string.progress_encrypting, ProgressDialog.STYLE_HORIZONTAL) {
+                getString(R.string.progress_encrypting), ProgressDialog.STYLE_HORIZONTAL) {
             public void handleMessage(Message message) {
-                // handle messages by standard ApgHandler first
+                // handle messages by standard KeychainIntentServiceHandler first
                 super.handleMessage(message);
 
                 if (message.arg1 == KeychainIntentServiceHandler.MESSAGE_OKAY) {
@@ -650,6 +645,15 @@ public class EncryptActivity extends DrawerActivity {
                                         .newInstance(mInputFilename);
                                 deleteFileDialog.show(getSupportFragmentManager(), "deleteDialog");
                             }
+
+                            if (mShareAfter.isChecked()) {
+                                // Share encrypted file
+                                Intent sendFileIntent = new Intent(Intent.ACTION_SEND);
+                                sendFileIntent.setType("*/*");
+                                sendFileIntent.putExtra(Intent.EXTRA_STREAM, Uri.parse(mOutputFilename));
+                                startActivity(Intent.createChooser(sendFileIntent,
+                                        getString(R.string.title_send_file)));
+                            }
                             break;
 
                         default:
@@ -659,8 +663,6 @@ public class EncryptActivity extends DrawerActivity {
                     }
                 }
             }
-
-            ;
         };
 
         // Create a new Messenger for the communication back
@@ -785,6 +787,11 @@ public class EncryptActivity extends DrawerActivity {
             }
         });
 
+
+
+
+
+
         mFileCompression = (Spinner) findViewById(R.id.fileCompression);
         Choice[] choices = new Choice[]{
                 new Choice(Id.choice.compression.none, getString(R.string.choice_none) + " ("
@@ -794,7 +801,7 @@ public class EncryptActivity extends DrawerActivity {
                 new Choice(Id.choice.compression.zlib, "ZLIB ("
                         + getString(R.string.compression_fast) + ")"),
                 new Choice(Id.choice.compression.bzip2, "BZIP2 ("
-                        + getString(R.string.compression_very_slow) + ")"),};
+                        + getString(R.string.compression_very_slow) + ")"), };
         ArrayAdapter<Choice> adapter = new ArrayAdapter<Choice>(this,
                 android.R.layout.simple_spinner_item, choices);
         adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
@@ -809,6 +816,7 @@ public class EncryptActivity extends DrawerActivity {
         }
 
         mDeleteAfter = (CheckBox) findViewById(R.id.deleteAfterEncryption);
+        mShareAfter = (CheckBox) findViewById(R.id.shareAfterEncryption);
 
         mAsciiArmor = (CheckBox) findViewById(R.id.asciiArmour);
         mAsciiArmor.setChecked(Preferences.getPreferences(this).getDefaultAsciiArmour());
@@ -947,8 +955,8 @@ public class EncryptActivity extends DrawerActivity {
 
             case Id.request.secret_keys: {
                 if (resultCode == RESULT_OK) {
-                    Bundle bundle = data.getExtras();
-                    mSecretKeyId = bundle.getLong(SelectSecretKeyActivity.RESULT_EXTRA_MASTER_KEY_ID);
+                    Uri uri_master_key = data.getData();
+                    mSecretKeyId = Long.valueOf(uri_master_key.getLastPathSegment());
                 } else {
                     mSecretKeyId = Id.key.none;
                 }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/HelpAboutFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/HelpAboutFragment.java
index 12d689274..a484b57de 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/HelpAboutFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/HelpAboutFragment.java
@@ -17,11 +17,6 @@
 
 package org.sufficientlysecure.keychain.ui;
 
-import org.sufficientlysecure.htmltextview.HtmlTextView;
-import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.util.Log;
-
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
@@ -31,6 +26,10 @@ import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.TextView;
+import org.sufficientlysecure.htmltextview.HtmlTextView;
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.util.Log;
 
 
 public class HelpAboutFragment extends Fragment {
@@ -55,7 +54,7 @@ public class HelpAboutFragment extends Fragment {
 
     /**
      * Get the current package version.
-     * 
+     *
      * @return The current version.
      */
     private String getVersion() {
@@ -73,4 +72,4 @@ public class HelpAboutFragment extends Fragment {
         return result;
     }
 
-}
\ No newline at end of file
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/HelpActivity.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/HelpActivity.java
index 9ccd7e088..32f37a0a5 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/HelpActivity.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/HelpActivity.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2012-2013 Dominik Schürmann <dominik@dominikschuermann.de>
+ * Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -17,24 +17,16 @@
 
 package org.sufficientlysecure.keychain.ui;
 
-import java.util.ArrayList;
-
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.ui.adapter.TabsAdapter;
-
-import android.content.Context;
 import android.content.Intent;
 import android.os.Bundle;
-import android.support.v4.app.Fragment;
-import android.support.v4.app.FragmentStatePagerAdapter;
-import android.support.v4.app.FragmentTransaction;
 import android.support.v4.view.ViewPager;
 import android.support.v7.app.ActionBar;
 import android.support.v7.app.ActionBarActivity;
-import android.widget.TextView;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.ui.adapter.TabsAdapter;
 
 public class HelpActivity extends ActionBarActivity {
-    public static final String EXTRA_SELECTED_TAB = "selectedTab";
+    public static final String EXTRA_SELECTED_TAB = "selected_tab";
 
     ViewPager mViewPager;
     TabsAdapter mTabsAdapter;
@@ -64,19 +56,24 @@ public class HelpActivity extends ActionBarActivity {
         Bundle startBundle = new Bundle();
         startBundle.putInt(HelpHtmlFragment.ARG_HTML_FILE, R.raw.help_start);
         mTabsAdapter.addTab(actionBar.newTab().setText(getString(R.string.help_tab_start)),
-                HelpHtmlFragment.class, startBundle, (selectedTab == 0 ? true : false));
+                HelpHtmlFragment.class, startBundle, (selectedTab == 0));
+
+        Bundle faqBundle = new Bundle();
+        faqBundle.putInt(HelpHtmlFragment.ARG_HTML_FILE, R.raw.help_faq);
+        mTabsAdapter.addTab(actionBar.newTab().setText(getString(R.string.help_tab_faq)),
+                HelpHtmlFragment.class, faqBundle, (selectedTab == 1));
 
         Bundle nfcBundle = new Bundle();
         nfcBundle.putInt(HelpHtmlFragment.ARG_HTML_FILE, R.raw.help_nfc_beam);
         mTabsAdapter.addTab(actionBar.newTab().setText(getString(R.string.help_tab_nfc_beam)),
-                HelpHtmlFragment.class, nfcBundle, (selectedTab == 1 ? true : false));
+                HelpHtmlFragment.class, nfcBundle, (selectedTab == 2));
 
         Bundle changelogBundle = new Bundle();
         changelogBundle.putInt(HelpHtmlFragment.ARG_HTML_FILE, R.raw.help_changelog);
         mTabsAdapter.addTab(actionBar.newTab().setText(getString(R.string.help_tab_changelog)),
-                HelpHtmlFragment.class, changelogBundle, (selectedTab == 2 ? true : false));
+                HelpHtmlFragment.class, changelogBundle, (selectedTab == 3));
 
         mTabsAdapter.addTab(actionBar.newTab().setText(getString(R.string.help_tab_about)),
-                HelpAboutFragment.class, null, (selectedTab == 3 ? true : false));
+                HelpAboutFragment.class, null, (selectedTab == 4));
     }
-}
\ No newline at end of file
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/HelpHtmlFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/HelpHtmlFragment.java
index 3afb5bbe0..6b3c51b08 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/HelpHtmlFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/HelpHtmlFragment.java
@@ -17,8 +17,6 @@
 
 package org.sufficientlysecure.keychain.ui;
 
-import org.sufficientlysecure.htmltextview.HtmlTextView;
-
 import android.app.Activity;
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
@@ -27,11 +25,12 @@ import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ScrollView;
+import org.sufficientlysecure.htmltextview.HtmlTextView;
 
 public class HelpHtmlFragment extends Fragment {
     private Activity mActivity;
 
-    private int htmlFile;
+    private int mHtmlFile;
 
     public static final String ARG_HTML_FILE = "htmlFile";
 
@@ -52,8 +51,8 @@ public class HelpHtmlFragment extends Fragment {
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
         mActivity = getActivity();
-        
-        htmlFile = getArguments().getInt(ARG_HTML_FILE);
+
+        mHtmlFile = getArguments().getInt(ARG_HTML_FILE);
 
         ScrollView scroller = new ScrollView(mActivity);
         HtmlTextView text = new HtmlTextView(mActivity);
@@ -66,11 +65,11 @@ public class HelpHtmlFragment extends Fragment {
         scroller.addView(text);
 
         // load html from raw resource (Parsing handled by HtmlTextView library)
-        text.setHtmlFromRawResource(getActivity(), htmlFile);
+        text.setHtmlFromRawResource(getActivity(), mHtmlFile);
 
         // no flickering when clicking textview for Android < 4
         text.setTextColor(getResources().getColor(android.R.color.black));
 
         return scroller;
     }
-}
\ No newline at end of file
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysActivity.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysActivity.java
index 5ac421a44..834509f53 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysActivity.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysActivity.java
@@ -34,10 +34,8 @@ import android.support.v7.app.ActionBar;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.widget.ArrayAdapter;
-
 import com.beardedhen.androidbootstrap.BootstrapButton;
 import com.devspark.appmsg.AppMsg;
-
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
@@ -161,7 +159,7 @@ public class ImportKeysActivity extends DrawerActivity implements ActionBar.OnNa
             } else if (extras.containsKey(EXTRA_KEY_ID)) {
                 long keyId = intent.getLongExtra(EXTRA_KEY_ID, 0);
                 if (keyId != 0) {
-                    query = "0x" + PgpKeyHelper.convertKeyToHex(keyId);
+                    query = PgpKeyHelper.convertKeyIdToHex(keyId);
                 }
             } else if (extras.containsKey(EXTRA_FINGERPRINT)) {
                 String fingerprint = intent.getStringExtra(EXTRA_FINGERPRINT);
@@ -169,7 +167,8 @@ public class ImportKeysActivity extends DrawerActivity implements ActionBar.OnNa
                     query = "0x" + fingerprint;
                 }
             } else {
-                Log.e(Constants.TAG, "IMPORT_KEY_FROM_KEYSERVER action needs to contain the 'query', 'key_id', or 'fingerprint' extra!");
+                Log.e(Constants.TAG,
+                "IMPORT_KEY_FROM_KEYSERVER action needs to contain the 'query', 'key_id', or 'fingerprint' extra!");
                 return;
             }
 
@@ -338,7 +337,7 @@ public class ImportKeysActivity extends DrawerActivity implements ActionBar.OnNa
     // } else {
     // status.putString(
     // EXTRA_ERROR,
-    // "Scanned fingerprint does NOT match the fingerprint of the received key.  You shouldnt trust this key.");
+    // "Scanned fingerprint does NOT match the fingerprint of the received key. You shouldnt trust this key.");
     // }
     // }
     // } catch (QueryException e) {
@@ -360,51 +359,54 @@ public class ImportKeysActivity extends DrawerActivity implements ActionBar.OnNa
     // }
 
 
-    // Message is received after importing is done in ApgService
-    KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(this,
-            R.string.progress_importing, ProgressDialog.STYLE_HORIZONTAL) {
-        public void handleMessage(Message message) {
-            // handle messages by standard ApgHandler first
-            super.handleMessage(message);
-
-            if (message.arg1 == KeychainIntentServiceHandler.MESSAGE_OKAY) {
-                // get returned data bundle
-                Bundle returnData = message.getData();
-
-                int added = returnData.getInt(KeychainIntentService.RESULT_IMPORT_ADDED);
-                int updated = returnData
-                        .getInt(KeychainIntentService.RESULT_IMPORT_UPDATED);
-                int bad = returnData.getInt(KeychainIntentService.RESULT_IMPORT_BAD);
-                String toastMessage;
-                if (added > 0 && updated > 0) {
-                    String addedStr = getResources().getQuantityString(
-                            R.plurals.keys_added_and_updated_1, added, added);
-                    String updatedStr = getResources().getQuantityString(
-                            R.plurals.keys_added_and_updated_2, updated, updated);
-                    toastMessage = addedStr + updatedStr;
-                } else if (added > 0) {
-                    toastMessage = getResources().getQuantityString(R.plurals.keys_added,
-                            added, added);
-                } else if (updated > 0) {
-                    toastMessage = getResources().getQuantityString(R.plurals.keys_updated,
-                            updated, updated);
-                } else {
-                    toastMessage = getString(R.string.no_keys_added_or_updated);
-                }
-                AppMsg.makeText(ImportKeysActivity.this, toastMessage, AppMsg.STYLE_INFO)
-                        .show();
-                if (bad > 0) {
-                    BadImportKeyDialogFragment badImportKeyDialogFragment = BadImportKeyDialogFragment.newInstance(bad);
-                    badImportKeyDialogFragment.show(getSupportFragmentManager(), "badKeyDialog");
-                }
-            }
-        }
-    };
-
     /**
      * Import keys with mImportData
      */
     public void importKeys() {
+        // Message is received after importing is done in KeychainIntentService
+        KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(
+                this,
+                getString(R.string.progress_importing),
+                ProgressDialog.STYLE_HORIZONTAL) {
+            public void handleMessage(Message message) {
+                // handle messages by standard KeychainIntentServiceHandler first
+                super.handleMessage(message);
+
+                if (message.arg1 == KeychainIntentServiceHandler.MESSAGE_OKAY) {
+                    // get returned data bundle
+                    Bundle returnData = message.getData();
+
+                    int added = returnData.getInt(KeychainIntentService.RESULT_IMPORT_ADDED);
+                    int updated = returnData
+                            .getInt(KeychainIntentService.RESULT_IMPORT_UPDATED);
+                    int bad = returnData.getInt(KeychainIntentService.RESULT_IMPORT_BAD);
+                    String toastMessage;
+                    if (added > 0 && updated > 0) {
+                        String addedStr = getResources().getQuantityString(
+                                R.plurals.keys_added_and_updated_1, added, added);
+                        String updatedStr = getResources().getQuantityString(
+                                R.plurals.keys_added_and_updated_2, updated, updated);
+                        toastMessage = addedStr + updatedStr;
+                    } else if (added > 0) {
+                        toastMessage = getResources().getQuantityString(R.plurals.keys_added,
+                                added, added);
+                    } else if (updated > 0) {
+                        toastMessage = getResources().getQuantityString(R.plurals.keys_updated,
+                                updated, updated);
+                    } else {
+                        toastMessage = getString(R.string.no_keys_added_or_updated);
+                    }
+                    AppMsg.makeText(ImportKeysActivity.this, toastMessage, AppMsg.STYLE_INFO)
+                            .show();
+                    if (bad > 0) {
+                        BadImportKeyDialogFragment badImportKeyDialogFragment =
+                                BadImportKeyDialogFragment.newInstance(bad);
+                        badImportKeyDialogFragment.show(getSupportFragmentManager(), "badKeyDialog");
+                    }
+                }
+            }
+        };
+
         if (mListFragment.getKeyBytes() != null || mListFragment.getDataUri() != null) {
             Log.d(Constants.TAG, "importKeys started");
 
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysClipboardFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysClipboardFragment.java
index 211fc1f44..3f0b4a46e 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysClipboardFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysClipboardFragment.java
@@ -17,17 +17,15 @@
 
 package org.sufficientlysecure.keychain.ui;
 
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.compatibility.ClipboardReflection;
-
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.ViewGroup;
-
 import com.beardedhen.androidbootstrap.BootstrapButton;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.compatibility.ClipboardReflection;
 
 public class ImportKeysClipboardFragment extends Fragment {
 
@@ -60,8 +58,9 @@ public class ImportKeysClipboardFragment extends Fragment {
             public void onClick(View v) {
                 CharSequence clipboardText = ClipboardReflection.getClipboardText(getActivity());
                 String sendText = "";
-                if (clipboardText != null)
+                if (clipboardText != null) {
                     sendText = clipboardText.toString();
+                }
                 mImportActivity.loadCallback(sendText.getBytes(), null, null, null);
             }
         });
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysFileFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysFileFragment.java
index 60b33c8a2..31d5f3fd0 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysFileFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysFileFragment.java
@@ -17,11 +17,6 @@
 
 package org.sufficientlysecure.keychain.ui;
 
-import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.Id;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.helper.FileHelper;
-
 import android.app.Activity;
 import android.content.Intent;
 import android.os.Bundle;
@@ -29,8 +24,11 @@ import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-
 import com.beardedhen.androidbootstrap.BootstrapButton;
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.Id;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.helper.FileHelper;
 
 public class ImportKeysFileFragment extends Fragment {
     private ImportKeysActivity mImportActivity;
@@ -62,7 +60,7 @@ public class ImportKeysFileFragment extends Fragment {
                 // open .asc or .gpg files
                 // setting it to text/plain prevents Cynaogenmod's file manager from selecting asc
                 // or gpg types!
-                FileHelper.openFile(ImportKeysFileFragment.this, Constants.path.APP_DIR + "/",
+                FileHelper.openFile(ImportKeysFileFragment.this, Constants.Path.APP_DIR + "/",
                         "*/*", Id.request.filename);
             }
         });
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysListFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysListFragment.java
index 1118f0264..9e8506193 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysListFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysListFragment.java
@@ -17,25 +17,6 @@
 
 package org.sufficientlysecure.keychain.ui;
 
-import java.io.ByteArrayInputStream;
-import java.io.FileNotFoundException;
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.ArrayList;
-import java.util.List;
-
-import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.helper.Preferences;
-import org.sufficientlysecure.keychain.ui.adapter.AsyncTaskResultWrapper;
-import org.sufficientlysecure.keychain.ui.adapter.ImportKeysAdapter;
-import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListEntry;
-import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListLoader;
-import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListServerLoader;
-import org.sufficientlysecure.keychain.util.InputData;
-import org.sufficientlysecure.keychain.util.KeyServer;
-import org.sufficientlysecure.keychain.util.Log;
-
 import android.app.Activity;
 import android.net.Uri;
 import android.os.Bundle;
@@ -44,8 +25,21 @@ import android.support.v4.app.LoaderManager;
 import android.support.v4.content.Loader;
 import android.view.View;
 import android.widget.ListView;
-
 import com.devspark.appmsg.AppMsg;
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.helper.Preferences;
+import org.sufficientlysecure.keychain.ui.adapter.*;
+import org.sufficientlysecure.keychain.util.InputData;
+import org.sufficientlysecure.keychain.util.KeyServer;
+import org.sufficientlysecure.keychain.util.Log;
+
+import java.io.ByteArrayInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.List;
 
 public class ImportKeysListFragment extends ListFragment implements
         LoaderManager.LoaderCallbacks<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>> {
@@ -184,7 +178,8 @@ public class ImportKeysListFragment extends ListFragment implements
     }
 
     @Override
-    public Loader<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>> onCreateLoader(int id, Bundle args) {
+    public Loader<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>>
+                                        onCreateLoader(int id, Bundle args) {
         switch (id) {
             case LOADER_ID_BYTES: {
                 InputData inputData = getInputData(mKeyBytes, mDataUri);
@@ -219,27 +214,44 @@ public class ImportKeysListFragment extends ListFragment implements
         } else {
             setListShownNoAnimation(true);
         }
+
+        Exception error = data.getError();
+
         switch (loader.getId()) {
             case LOADER_ID_BYTES:
+
+                if (error == null) {
+                    // No error
+                } else if (error instanceof ImportKeysListLoader.FileHasNoContent) {
+                    AppMsg.makeText(getActivity(), R.string.error_import_file_no_content,
+                            AppMsg.STYLE_ALERT).show();
+                } else if (error instanceof ImportKeysListLoader.NonPgpPart) {
+                    AppMsg.makeText(getActivity(),
+                            ((ImportKeysListLoader.NonPgpPart) error).getCount() + " " + getResources().
+                                    getQuantityString(R.plurals.error_import_non_pgp_part,
+                                            ((ImportKeysListLoader.NonPgpPart) error).getCount()),
+                            new AppMsg.Style(AppMsg.LENGTH_LONG, R.color.confirm)).show();
+                } else {
+                    AppMsg.makeText(getActivity(), R.string.error_generic_report_bug,
+                            new AppMsg.Style(AppMsg.LENGTH_LONG, R.color.alert)).show();
+                }
                 break;
 
             case LOADER_ID_SERVER_QUERY:
 
-                Exception error = data.getError();
-
-                if(error == null){
+                if (error == null) {
                     AppMsg.makeText(
                             getActivity(), getResources().getQuantityString(R.plurals.keys_found,
                             mAdapter.getCount(), mAdapter.getCount()),
                             AppMsg.STYLE_INFO
                     ).show();
-                } else if(error instanceof KeyServer.InsufficientQuery){
+                } else if (error instanceof KeyServer.InsufficientQuery) {
                     AppMsg.makeText(getActivity(), R.string.error_keyserver_insufficient_query,
                             AppMsg.STYLE_ALERT).show();
-                }else if(error instanceof  KeyServer.QueryException){
+                } else if (error instanceof KeyServer.QueryException) {
                     AppMsg.makeText(getActivity(), R.string.error_keyserver_query,
                             AppMsg.STYLE_ALERT).show();
-                }else if(error instanceof KeyServer.TooManyResponses){
+                } else if (error instanceof KeyServer.TooManyResponses) {
                     AppMsg.makeText(getActivity(), R.string.error_keyserver_too_many_responses,
                             AppMsg.STYLE_ALERT).show();
                 }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysNFCFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysNFCFragment.java
index 83af8cf48..110647284 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysNFCFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysNFCFragment.java
@@ -17,8 +17,6 @@
 
 package org.sufficientlysecure.keychain.ui;
 
-import org.sufficientlysecure.keychain.R;
-
 import android.content.Intent;
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
@@ -26,8 +24,8 @@ import android.view.LayoutInflater;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.ViewGroup;
-
 import com.beardedhen.androidbootstrap.BootstrapButton;
+import org.sufficientlysecure.keychain.R;
 
 public class ImportKeysNFCFragment extends Fragment {
 
@@ -59,7 +57,7 @@ public class ImportKeysNFCFragment extends Fragment {
             public void onClick(View v) {
                 // show nfc help
                 Intent intent = new Intent(getActivity(), HelpActivity.class);
-                intent.putExtra(HelpActivity.EXTRA_SELECTED_TAB, 1);
+                intent.putExtra(HelpActivity.EXTRA_SELECTED_TAB, 2);
                 startActivityForResult(intent, 0);
             }
         });
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysQrCodeFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysQrCodeFragment.java
index ee91b2434..10c0752b1 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysQrCodeFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysQrCodeFragment.java
@@ -17,14 +17,6 @@
 
 package org.sufficientlysecure.keychain.ui;
 
-import java.util.ArrayList;
-import java.util.Locale;
-
-import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.util.IntentIntegratorSupportV4;
-import org.sufficientlysecure.keychain.util.Log;
-
 import android.content.Intent;
 import android.net.Uri;
 import android.os.Bundle;
@@ -36,9 +28,15 @@ import android.view.ViewGroup;
 import android.widget.ProgressBar;
 import android.widget.TextView;
 import android.widget.Toast;
-
 import com.beardedhen.androidbootstrap.BootstrapButton;
 import com.google.zxing.integration.android.IntentResult;
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.util.IntentIntegratorSupportV4;
+import org.sufficientlysecure.keychain.util.Log;
+
+import java.util.ArrayList;
+import java.util.Locale;
 
 public class ImportKeysQrCodeFragment extends Fragment {
 
@@ -94,45 +92,45 @@ public class ImportKeysQrCodeFragment extends Fragment {
     @Override
     public void onActivityResult(int requestCode, int resultCode, Intent data) {
         switch (requestCode & 0xFFFF) {
-        case IntentIntegratorSupportV4.REQUEST_CODE: {
-            IntentResult scanResult = IntentIntegratorSupportV4.parseActivityResult(requestCode,
-                    resultCode, data);
-            if (scanResult != null && scanResult.getFormatName() != null) {
-                String scannedContent = scanResult.getContents();
-
-                Log.d(Constants.TAG, "scannedContent: " + scannedContent);
-
-                // look if it's fingerprint only
-                if (scannedContent.toLowerCase(Locale.ENGLISH).startsWith(Constants.FINGERPRINT_SCHEME)) {
-                    importFingerprint(Uri.parse(scanResult.getContents()));
-                    return;
+            case IntentIntegratorSupportV4.REQUEST_CODE: {
+                IntentResult scanResult = IntentIntegratorSupportV4.parseActivityResult(requestCode,
+                        resultCode, data);
+                if (scanResult != null && scanResult.getFormatName() != null) {
+                    String scannedContent = scanResult.getContents();
+
+                    Log.d(Constants.TAG, "scannedContent: " + scannedContent);
+
+                    // look if it's fingerprint only
+                    if (scannedContent.toLowerCase(Locale.ENGLISH).startsWith(Constants.FINGERPRINT_SCHEME)) {
+                        importFingerprint(Uri.parse(scanResult.getContents()));
+                        return;
+                    }
+
+                    // look if it is the whole key
+                    String[] parts = scannedContent.split(",");
+                    if (parts.length == 3) {
+                        importParts(parts);
+                        return;
+                    }
+
+                    // is this a full key encoded as qr code?
+                    if (scannedContent.startsWith("-----BEGIN PGP")) {
+                        mImportActivity.loadCallback(scannedContent.getBytes(), null, null, null);
+                        return;
+                    }
+
+                    // fail...
+                    Toast.makeText(getActivity(), R.string.import_qr_code_wrong, Toast.LENGTH_LONG)
+                            .show();
                 }
 
-                // look if it is the whole key
-                String[] parts = scannedContent.split(",");
-                if (parts.length == 3) {
-                    importParts(parts);
-                    return;
-                }
-
-                // is this a full key encoded as qr code?
-                if (scannedContent.startsWith("-----BEGIN PGP")) {
-                    mImportActivity.loadCallback(scannedContent.getBytes(), null, null, null);
-                    return;
-                }
-
-                // fail...
-                Toast.makeText(getActivity(), R.string.import_qr_code_wrong, Toast.LENGTH_LONG)
-                        .show();
+                break;
             }
 
-            break;
-        }
-
-        default:
-            super.onActivityResult(requestCode, resultCode, data);
+            default:
+                super.onActivityResult(requestCode, resultCode, data);
 
-            break;
+                break;
         }
     }
 
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysServerFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysServerFragment.java
index d77015aa7..0b2fff64e 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysServerFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysServerFragment.java
@@ -17,11 +17,6 @@
 
 package org.sufficientlysecure.keychain.ui;
 
-import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.helper.Preferences;
-import org.sufficientlysecure.keychain.util.Log;
-
 import android.content.Context;
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
@@ -36,8 +31,11 @@ import android.widget.ArrayAdapter;
 import android.widget.EditText;
 import android.widget.Spinner;
 import android.widget.TextView;
-
 import com.beardedhen.androidbootstrap.BootstrapButton;
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.helper.Preferences;
+import org.sufficientlysecure.keychain.util.Log;
 
 public class ImportKeysServerFragment extends Fragment {
     public static final String ARG_QUERY = "query";
@@ -96,7 +94,8 @@ public class ImportKeysServerFragment extends Fragment {
                 search(query, keyServer);
 
                 // close keyboard after pressing search
-                InputMethodManager imm = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
+                InputMethodManager imm =
+                        (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
                 imm.hideSoftInputFromWindow(mQueryEditText.getWindowToken(), 0);
             }
         });
@@ -110,7 +109,6 @@ public class ImportKeysServerFragment extends Fragment {
                     search(query, keyServer);
 
                     // Don't return true to let the keyboard close itself after pressing search
-                    // http://stackoverflow.com/questions/2342620/how-to-hide-keyboard-after-typing-in-edittext-in-android
                     return false;
                 }
                 return false;
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListSecretActivity.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListActivity.java
index e58ebe819..06df6f12d 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListSecretActivity.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListActivity.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2013 Dominik Schürmann <dominik@dominikschuermann.de>
+ * Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -17,17 +17,16 @@
 
 package org.sufficientlysecure.keychain.ui;
 
-import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.Id;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.helper.ExportHelper;
-
 import android.content.Intent;
 import android.os.Bundle;
 import android.view.Menu;
 import android.view.MenuItem;
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.Id;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.helper.ExportHelper;
 
-public class KeyListSecretActivity extends DrawerActivity {
+public class KeyListActivity extends DrawerActivity {
 
     ExportHelper mExportHelper;
 
@@ -37,7 +36,7 @@ public class KeyListSecretActivity extends DrawerActivity {
 
         mExportHelper = new ExportHelper(this);
 
-        setContentView(R.layout.key_list_secret_activity);
+        setContentView(R.layout.key_list_activity);
 
         // now setup navigation drawer in DrawerActivity...
         setupDrawerNavigation(savedInstanceState);
@@ -46,34 +45,35 @@ public class KeyListSecretActivity extends DrawerActivity {
     @Override
     public boolean onCreateOptionsMenu(Menu menu) {
         super.onCreateOptionsMenu(menu);
-        getMenuInflater().inflate(R.menu.key_list_secret, menu);
+        getMenuInflater().inflate(R.menu.key_list, menu);
         return true;
     }
 
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {
-        case R.id.menu_key_list_secret_create:
-            createKey();
-
-            return true;
-        case R.id.menu_key_list_secret_create_expert:
-            createKeyExpert();
-
-            return true;
-        case R.id.menu_key_list_secret_export:
-            mExportHelper.showExportKeysDialog(null, Id.type.secret_key, Constants.path.APP_DIR
-                    + "/secexport.asc");
-
-            return true;
-        case R.id.menu_key_list_secret_import:
-            Intent intentImportFromFile = new Intent(this, ImportKeysActivity.class);
-            intentImportFromFile.setAction(ImportKeysActivity.ACTION_IMPORT_KEY_FROM_FILE);
-            startActivityForResult(intentImportFromFile, 0);
-
-            return true;
-        default:
-            return super.onOptionsItemSelected(item);
+            case R.id.menu_key_list_import:
+                callIntentForDrawerItem(Constants.DrawerItems.IMPORT_KEYS);
+
+                return true;
+            case R.id.menu_key_list_export:
+                mExportHelper.showExportKeysDialog(null, Id.type.public_key, Constants.Path.APP_DIR_FILE_PUB, null);
+
+                return true;
+            case R.id.menu_key_list_create:
+                createKey();
+
+                return true;
+            case R.id.menu_key_list_create_expert:
+                createKeyExpert();
+
+                return true;
+            case R.id.menu_key_list_secret_export:
+                mExportHelper.showExportKeysDialog(null, Id.type.secret_key, Constants.Path.APP_DIR_FILE_SEC, null);
+
+                return true;
+            default:
+                return super.onOptionsItemSelected(item);
         }
     }
 
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListFragment.java
new file mode 100644
index 000000000..957c822d2
--- /dev/null
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListFragment.java
@@ -0,0 +1,686 @@
+/*
+ * Copyright (C) 2013-2014 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.sufficientlysecure.keychain.ui;
+
+import android.annotation.SuppressLint;
+import android.annotation.TargetApi;
+import android.content.Context;
+import android.content.Intent;
+import android.database.Cursor;
+import android.graphics.Color;
+import android.net.Uri;
+import android.os.*;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.LoaderManager;
+import android.support.v4.content.CursorLoader;
+import android.support.v4.content.Loader;
+import android.support.v4.view.MenuItemCompat;
+import android.support.v7.app.ActionBarActivity;
+import android.support.v7.widget.SearchView;
+import android.text.TextUtils;
+import android.view.*;
+import android.view.View.OnClickListener;
+import android.view.animation.AnimationUtils;
+import android.widget.*;
+import android.widget.AbsListView.MultiChoiceModeListener;
+import com.beardedhen.androidbootstrap.BootstrapButton;
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.Id;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.helper.ExportHelper;
+import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
+import org.sufficientlysecure.keychain.provider.KeychainContract;
+import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
+import org.sufficientlysecure.keychain.provider.KeychainContract.KeyTypes;
+import org.sufficientlysecure.keychain.provider.KeychainContract.UserIds;
+import org.sufficientlysecure.keychain.provider.KeychainDatabase;
+import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.ui.adapter.HighlightQueryCursorAdapter;
+import org.sufficientlysecure.keychain.ui.dialog.DeleteKeyDialogFragment;
+import org.sufficientlysecure.keychain.util.Log;
+import se.emilsjolander.stickylistheaders.ApiLevelTooLowException;
+import se.emilsjolander.stickylistheaders.StickyListHeadersAdapter;
+import se.emilsjolander.stickylistheaders.StickyListHeadersListView;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+
+/**
+ * Public key list with sticky list headers. It does _not_ extend ListFragment because it uses
+ * StickyListHeaders library which does not extend upon ListView.
+ */
+public class KeyListFragment extends Fragment
+        implements SearchView.OnQueryTextListener, AdapterView.OnItemClickListener,
+        LoaderManager.LoaderCallbacks<Cursor> {
+
+    private KeyListAdapter mAdapter;
+    private StickyListHeadersListView mStickyList;
+
+    // rebuild functionality of ListFragment, http://stackoverflow.com/a/12504097
+    boolean mListShown;
+    View mProgressContainer;
+    View mListContainer;
+
+    private String mCurQuery;
+    private SearchView mSearchView;
+    // empty list layout
+    private BootstrapButton mButtonEmptyCreate;
+    private BootstrapButton mButtonEmptyImport;
+
+
+    /**
+     * Load custom layout with StickyListView from library
+     */
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        View root = inflater.inflate(R.layout.key_list_fragment, container, false);
+
+        mStickyList = (StickyListHeadersListView) root.findViewById(R.id.key_list_list);
+        mStickyList.setOnItemClickListener(this);
+
+
+        // empty view
+        mButtonEmptyCreate = (BootstrapButton) root.findViewById(R.id.key_list_empty_button_create);
+        mButtonEmptyCreate.setOnClickListener(new OnClickListener() {
+
+            @Override
+            public void onClick(View v) {
+                Intent intent = new Intent(getActivity(), EditKeyActivity.class);
+                intent.setAction(EditKeyActivity.ACTION_CREATE_KEY);
+                intent.putExtra(EditKeyActivity.EXTRA_GENERATE_DEFAULT_KEYS, true);
+                intent.putExtra(EditKeyActivity.EXTRA_USER_IDS, ""); // show user id view
+                startActivityForResult(intent, 0);
+            }
+        });
+        mButtonEmptyImport = (BootstrapButton) root.findViewById(R.id.key_list_empty_button_import);
+        mButtonEmptyImport.setOnClickListener(new OnClickListener() {
+
+            @Override
+            public void onClick(View v) {
+                Intent intent = new Intent(getActivity(), ImportKeysActivity.class);
+                intent.setAction(ImportKeysActivity.ACTION_IMPORT_KEY_FROM_FILE);
+                startActivityForResult(intent, 0);
+            }
+        });
+
+        // rebuild functionality of ListFragment, http://stackoverflow.com/a/12504097
+        mListContainer = root.findViewById(R.id.key_list_list_container);
+        mProgressContainer = root.findViewById(R.id.key_list_progress_container);
+        mListShown = true;
+
+        return root;
+    }
+
+    /**
+     * Define Adapter and Loader on create of Activity
+     */
+    @SuppressLint("NewApi")
+    @Override
+    public void onActivityCreated(Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+
+        mStickyList.setOnItemClickListener(this);
+        mStickyList.setAreHeadersSticky(true);
+        mStickyList.setDrawingListUnderStickyHeader(false);
+        mStickyList.setFastScrollEnabled(true);
+        try {
+            mStickyList.setFastScrollAlwaysVisible(true);
+        } catch (ApiLevelTooLowException e) {
+        }
+
+        // this view is made visible if no data is available
+        mStickyList.setEmptyView(getActivity().findViewById(R.id.key_list_empty));
+
+        /*
+         * ActionBarSherlock does not support MultiChoiceModeListener. Thus multi-selection is only
+         * available for Android >= 3.0
+         */
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
+            mStickyList.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE_MODAL);
+            mStickyList.getWrappedList().setMultiChoiceModeListener(new MultiChoiceModeListener() {
+
+                @Override
+                public boolean onCreateActionMode(ActionMode mode, Menu menu) {
+                    android.view.MenuInflater inflater = getActivity().getMenuInflater();
+                    inflater.inflate(R.menu.key_list_multi, menu);
+                    return true;
+                }
+
+                @Override
+                public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
+                    return false;
+                }
+
+                @Override
+                public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
+
+                    // get IDs for checked positions as long array
+                    long[] ids;
+
+                    switch (item.getItemId()) {
+                        case R.id.menu_key_list_multi_encrypt: {
+                            ids = mAdapter.getCurrentSelectedMasterKeyIds();
+                            encrypt(mode, ids);
+                            break;
+                        }
+                        case R.id.menu_key_list_multi_delete: {
+                            ids = mStickyList.getWrappedList().getCheckedItemIds();
+                            showDeleteKeyDialog(mode, ids);
+                            break;
+                        }
+                        case R.id.menu_key_list_multi_export: {
+                            ids = mStickyList.getWrappedList().getCheckedItemIds();
+                            long[] masterKeyIds = new long[2*ids.length];
+                            ArrayList<Long> allPubRowIds =
+                                    ProviderHelper.getPublicKeyRingsRowIds(getActivity());
+                            for (int i = 0; i < ids.length; i++) {
+                                if (allPubRowIds.contains(ids[i])) {
+                                    masterKeyIds[i] = ProviderHelper.getPublicMasterKeyId(getActivity(), ids[i]);
+                                } else {
+                                    masterKeyIds[i] = ProviderHelper.getSecretMasterKeyId(getActivity(), ids[i]);
+                                }
+                            }
+                            ExportHelper mExportHelper = new ExportHelper((ActionBarActivity) getActivity());
+                            mExportHelper
+                                    .showExportKeysDialog(masterKeyIds, Id.type.public_key,
+                                            Constants.Path.APP_DIR_FILE_PUB,
+                                            getString(R.string.also_export_secret_keys));
+                            break;
+                        }
+                        case R.id.menu_key_list_multi_select_all: {
+                            // select all
+                            for (int i = 0; i < mStickyList.getCount(); i++) {
+                                mStickyList.setItemChecked(i, true);
+                            }
+                            break;
+                        }
+                    }
+                    return true;
+                }
+
+                @Override
+                public void onDestroyActionMode(ActionMode mode) {
+                    mAdapter.clearSelection();
+                }
+
+                @Override
+                public void onItemCheckedStateChanged(ActionMode mode, int position, long id,
+                                                      boolean checked) {
+                    if (checked) {
+                        mAdapter.setNewSelection(position, checked);
+                    } else {
+                        mAdapter.removeSelection(position);
+                    }
+                    int count = mStickyList.getCheckedItemCount();
+                    String keysSelected = getResources().getQuantityString(
+                            R.plurals.key_list_selected_keys, count, count);
+                    mode.setTitle(keysSelected);
+                }
+
+            });
+        }
+
+        // We have a menu item to show in action bar.
+        setHasOptionsMenu(true);
+
+        // NOTE: Not supported by StickyListHeader, but reimplemented here
+        // Start out with a progress indicator.
+        setListShown(false);
+
+        // Create an empty adapter we will use to display the loaded data.
+        mAdapter = new KeyListAdapter(getActivity(), null, Id.type.public_key);
+        mStickyList.setAdapter(mAdapter);
+
+        // Prepare the loader. Either re-connect with an existing one,
+        // or start a new one.
+        getLoaderManager().initLoader(0, null, this);
+    }
+
+    // These are the rows that we will retrieve.
+    static final String[] PROJECTION = new String[]{
+            KeychainContract.KeyRings._ID,
+            KeychainContract.KeyRings.TYPE,
+            KeychainContract.KeyRings.MASTER_KEY_ID,
+            KeychainContract.UserIds.USER_ID,
+            KeychainContract.Keys.IS_REVOKED
+    };
+
+    static final int INDEX_TYPE = 1;
+    static final int INDEX_MASTER_KEY_ID = 2;
+    static final int INDEX_USER_ID = 3;
+    static final int INDEX_IS_REVOKED = 4;
+
+    static final String SORT_ORDER =
+            // show secret before public key
+            KeychainDatabase.Tables.KEY_RINGS + "." + KeyRings.TYPE + " DESC, "
+                    // sort by user id otherwise
+                    + UserIds.USER_ID + " ASC";
+
+    @Override
+    public Loader<Cursor> onCreateLoader(int id, Bundle args) {
+        // This is called when a new Loader needs to be created. This
+        // sample only has one Loader, so we don't care about the ID.
+        Uri baseUri = KeyRings.buildUnifiedKeyRingsUri();
+        String where = null;
+        String whereArgs[] = null;
+        if (mCurQuery != null) {
+            where = KeychainContract.UserIds.USER_ID + " LIKE ?";
+            whereArgs = new String[]{"%" + mCurQuery + "%"};
+        }
+        // Now create and return a CursorLoader that will take care of
+        // creating a Cursor for the data being displayed.
+        return new CursorLoader(getActivity(), baseUri, PROJECTION, where, whereArgs, SORT_ORDER);
+    }
+
+    @Override
+    public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
+        // Swap the new cursor in. (The framework will take care of closing the
+        // old cursor once we return.)
+        mAdapter.setSearchQuery(mCurQuery);
+        mAdapter.swapCursor(data);
+
+        mStickyList.setAdapter(mAdapter);
+
+        // NOTE: Not supported by StickyListHeader, but reimplemented here
+        // The list should now be shown.
+        if (isResumed()) {
+            setListShown(true);
+        } else {
+            setListShownNoAnimation(true);
+        }
+    }
+
+    @Override
+    public void onLoaderReset(Loader<Cursor> loader) {
+        // This is called when the last Cursor provided to onLoadFinished()
+        // above is about to be closed. We need to make sure we are no
+        // longer using it.
+        mAdapter.swapCursor(null);
+    }
+
+    /**
+     * On click on item, start key view activity
+     */
+    @Override
+    public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
+        Intent viewIntent = null;
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
+            viewIntent = new Intent(getActivity(), ViewKeyActivity.class);
+        } else {
+            viewIntent = new Intent(getActivity(), ViewKeyActivityJB.class);
+        }
+        viewIntent.setData(
+                KeychainContract
+                        .KeyRings.buildPublicKeyRingsByMasterKeyIdUri(
+                                            Long.toString(mAdapter.getMasterKeyId(position))));
+        startActivity(viewIntent);
+    }
+
+    @TargetApi(11)
+    protected void encrypt(ActionMode mode, long[] keyRingMasterKeyIds) {
+        Intent intent = new Intent(getActivity(), EncryptActivity.class);
+        intent.setAction(EncryptActivity.ACTION_ENCRYPT);
+        intent.putExtra(EncryptActivity.EXTRA_ENCRYPTION_KEY_IDS, keyRingMasterKeyIds);
+        // used instead of startActivity set actionbar based on callingPackage
+        startActivityForResult(intent, 0);
+
+        mode.finish();
+    }
+
+    /**
+     * Show dialog to delete key
+     *
+     * @param keyRingRowIds
+     */
+    @TargetApi(11)
+    // TODO: this method needs an overhaul to handle both public and secret keys gracefully!
+    public void showDeleteKeyDialog(final ActionMode mode, long[] keyRingRowIds) {
+        // Message is received after key is deleted
+        Handler returnHandler = new Handler() {
+            @Override
+            public void handleMessage(Message message) {
+                if (message.what == DeleteKeyDialogFragment.MESSAGE_OKAY) {
+                    mode.finish();
+                }
+            }
+        };
+
+        // Create a new Messenger for the communication back
+        Messenger messenger = new Messenger(returnHandler);
+
+        DeleteKeyDialogFragment deleteKeyDialog = DeleteKeyDialogFragment.newInstance(messenger,
+                keyRingRowIds);
+
+        deleteKeyDialog.show(getActivity().getSupportFragmentManager(), "deleteKeyDialog");
+    }
+
+
+    @Override
+    public void onCreateOptionsMenu(final Menu menu, final MenuInflater inflater) {
+        // Get the searchview
+        MenuItem searchItem = menu.findItem(R.id.menu_key_list_search);
+        mSearchView = (SearchView) MenuItemCompat.getActionView(searchItem);
+
+        // Execute this when searching
+        mSearchView.setOnQueryTextListener(this);
+
+        // Erase search result without focus
+        MenuItemCompat.setOnActionExpandListener(searchItem, new MenuItemCompat.OnActionExpandListener() {
+            @Override
+            public boolean onMenuItemActionExpand(MenuItem item) {
+                return true;
+            }
+
+            @Override
+            public boolean onMenuItemActionCollapse(MenuItem item) {
+                mCurQuery = null;
+                mSearchView.setQuery("", true);
+                getLoaderManager().restartLoader(0, null, KeyListFragment.this);
+                return true;
+            }
+        });
+
+        super.onCreateOptionsMenu(menu, inflater);
+    }
+
+    @Override
+    public boolean onQueryTextSubmit(String s) {
+        return true;
+    }
+
+    @Override
+    public boolean onQueryTextChange(String s) {
+        // Called when the action bar search text has changed.  Update
+        // the search filter, and restart the loader to do a new query
+        // with this filter.
+        mCurQuery = !TextUtils.isEmpty(s) ? s : null;
+        getLoaderManager().restartLoader(0, null, this);
+        return true;
+    }
+
+    // rebuild functionality of ListFragment, http://stackoverflow.com/a/12504097
+    public void setListShown(boolean shown, boolean animate) {
+        if (mListShown == shown) {
+            return;
+        }
+        mListShown = shown;
+        if (shown) {
+            if (animate) {
+                mProgressContainer.startAnimation(AnimationUtils.loadAnimation(
+                        getActivity(), android.R.anim.fade_out));
+                mListContainer.startAnimation(AnimationUtils.loadAnimation(
+                        getActivity(), android.R.anim.fade_in));
+            }
+            mProgressContainer.setVisibility(View.GONE);
+            mListContainer.setVisibility(View.VISIBLE);
+        } else {
+            if (animate) {
+                mProgressContainer.startAnimation(AnimationUtils.loadAnimation(
+                        getActivity(), android.R.anim.fade_in));
+                mListContainer.startAnimation(AnimationUtils.loadAnimation(
+                        getActivity(), android.R.anim.fade_out));
+            }
+            mProgressContainer.setVisibility(View.VISIBLE);
+            mListContainer.setVisibility(View.INVISIBLE);
+        }
+    }
+
+    // rebuild functionality of ListFragment, http://stackoverflow.com/a/12504097
+    public void setListShown(boolean shown) {
+        setListShown(shown, true);
+    }
+
+    // rebuild functionality of ListFragment, http://stackoverflow.com/a/12504097
+    public void setListShownNoAnimation(boolean shown) {
+        setListShown(shown, false);
+    }
+
+    /**
+     * Implements StickyListHeadersAdapter from library
+     */
+    private class KeyListAdapter extends HighlightQueryCursorAdapter implements StickyListHeadersAdapter {
+        private LayoutInflater mInflater;
+
+        private HashMap<Integer, Boolean> mSelection = new HashMap<Integer, Boolean>();
+
+        public KeyListAdapter(Context context, Cursor c, int flags) {
+            super(context, c, flags);
+
+            mInflater = LayoutInflater.from(context);
+        }
+
+        @Override
+        public Cursor swapCursor(Cursor newCursor) {
+            return super.swapCursor(newCursor);
+        }
+
+        /**
+         * Bind cursor data to the item list view
+         * <p/>
+         * NOTE: CursorAdapter already implements the ViewHolder pattern in its getView() method. Thus
+         * no ViewHolder is required here.
+         */
+        @Override
+        public void bindView(View view, Context context, Cursor cursor) {
+
+            { // set name and stuff, common to both key types
+                TextView mainUserId = (TextView) view.findViewById(R.id.mainUserId);
+                TextView mainUserIdRest = (TextView) view.findViewById(R.id.mainUserIdRest);
+
+                String userId = cursor.getString(INDEX_USER_ID);
+                String[] userIdSplit = PgpKeyHelper.splitUserId(userId);
+                if (userIdSplit[0] != null) {
+                    mainUserId.setText(highlightSearchQuery(userIdSplit[0]));
+                } else {
+                    mainUserId.setText(R.string.user_id_no_name);
+                }
+                if (userIdSplit[1] != null) {
+                    mainUserIdRest.setText(highlightSearchQuery(userIdSplit[1]));
+                    mainUserIdRest.setVisibility(View.VISIBLE);
+                } else {
+                    mainUserIdRest.setVisibility(View.GONE);
+                }
+            }
+
+            { // set edit button and revoked info, specific by key type
+                View statusDivider = (View) view.findViewById(R.id.status_divider);
+                FrameLayout statusLayout = (FrameLayout) view.findViewById(R.id.status_layout);
+                Button button = (Button) view.findViewById(R.id.edit);
+                TextView revoked = (TextView) view.findViewById(R.id.revoked);
+
+                if (cursor.getInt(KeyListFragment.INDEX_TYPE) == KeyTypes.SECRET) {
+                    // this is a secret key - show the edit button
+                    statusDivider.setVisibility(View.VISIBLE);
+                    statusLayout.setVisibility(View.VISIBLE);
+                    revoked.setVisibility(View.GONE);
+                    button.setVisibility(View.VISIBLE);
+
+                    final long id = cursor.getLong(INDEX_MASTER_KEY_ID);
+                    button.setOnClickListener(new OnClickListener() {
+                        public void onClick(View view) {
+                            Intent editIntent = new Intent(getActivity(), EditKeyActivity.class);
+                            editIntent.setData(
+                                    KeychainContract.KeyRings
+                                            .buildSecretKeyRingsByMasterKeyIdUri(Long.toString(id)));
+                            editIntent.setAction(EditKeyActivity.ACTION_EDIT_KEY);
+                            startActivityForResult(editIntent, 0);
+                        }
+                    });
+                } else {
+                    // this is a public key - hide the edit button, show if it's revoked
+                    statusDivider.setVisibility(View.GONE);
+                    button.setVisibility(View.GONE);
+
+                    boolean isRevoked = cursor.getInt(INDEX_IS_REVOKED) > 0;
+                    statusLayout.setVisibility(isRevoked ? View.VISIBLE : View.GONE);
+                    revoked.setVisibility(isRevoked ? View.VISIBLE : View.GONE);
+                }
+            }
+
+        }
+
+        public long getMasterKeyId(int id) {
+            if (!mCursor.moveToPosition(id)) {
+                throw new IllegalStateException("couldn't move cursor to position " + id);
+            }
+
+            return mCursor.getLong(INDEX_MASTER_KEY_ID);
+        }
+
+        @Override
+        public View newView(Context context, Cursor cursor, ViewGroup parent) {
+            return mInflater.inflate(R.layout.key_list_item, parent, false);
+        }
+
+        /**
+         * Creates a new header view and binds the section headers to it. It uses the ViewHolder
+         * pattern. Most functionality is similar to getView() from Android's CursorAdapter.
+         * <p/>
+         * NOTE: The variables mDataValid and mCursor are available due to the super class
+         * CursorAdapter.
+         */
+        @Override
+        public View getHeaderView(int position, View convertView, ViewGroup parent) {
+            HeaderViewHolder holder;
+            if (convertView == null) {
+                holder = new HeaderViewHolder();
+                convertView = mInflater.inflate(R.layout.key_list_header, parent, false);
+                holder.mText = (TextView) convertView.findViewById(R.id.stickylist_header_text);
+                holder.mCount = (TextView) convertView.findViewById(R.id.contacts_num);
+                convertView.setTag(holder);
+            } else {
+                holder = (HeaderViewHolder) convertView.getTag();
+            }
+
+            if (!mDataValid) {
+                // no data available at this point
+                Log.d(Constants.TAG, "getHeaderView: No data available at this point!");
+                return convertView;
+            }
+
+            if (!mCursor.moveToPosition(position)) {
+                throw new IllegalStateException("couldn't move cursor to position " + position);
+            }
+
+            if (mCursor.getInt(KeyListFragment.INDEX_TYPE) == KeyTypes.SECRET) {
+                { // set contact count
+                    int num = mCursor.getCount();
+                    String contactsTotal = getResources().getQuantityString(R.plurals.n_contacts, num, num);
+                    holder.mCount.setText(contactsTotal);
+                    holder.mCount.setVisibility(View.VISIBLE);
+                }
+
+                holder.mText.setText(convertView.getResources().getString(R.string.my_keys));
+                return convertView;
+            }
+
+            // set header text as first char in user id
+            String userId = mCursor.getString(KeyListFragment.INDEX_USER_ID);
+            String headerText = convertView.getResources().getString(R.string.user_id_no_name);
+            if (userId != null && userId.length() > 0) {
+                headerText = "" +
+                            mCursor.getString(KeyListFragment.INDEX_USER_ID).subSequence(0, 1).charAt(0);
+            }
+            holder.mText.setText(headerText);
+            holder.mCount.setVisibility(View.GONE);
+            return convertView;
+        }
+
+        /**
+         * Header IDs should be static, position=1 should always return the same Id that is.
+         */
+        @Override
+        public long getHeaderId(int position) {
+            if (!mDataValid) {
+                // no data available at this point
+                Log.d(Constants.TAG, "getHeaderView: No data available at this point!");
+                return -1;
+            }
+
+            if (!mCursor.moveToPosition(position)) {
+                throw new IllegalStateException("couldn't move cursor to position " + position);
+            }
+
+            // early breakout: all secret keys are assigned id 0
+            if (mCursor.getInt(KeyListFragment.INDEX_TYPE) == KeyTypes.SECRET) {
+                return 1L;
+            }
+            // otherwise, return the first character of the name as ID
+            String userId = mCursor.getString(KeyListFragment.INDEX_USER_ID);
+            if (userId != null && userId.length() > 0) {
+                return userId.charAt(0);
+            } else {
+                return Long.MAX_VALUE;
+            }
+        }
+
+        class HeaderViewHolder {
+            TextView mText;
+            TextView mCount;
+        }
+
+        /**
+         * -------------------------- MULTI-SELECTION METHODS --------------
+         */
+        public void setNewSelection(int position, boolean value) {
+            mSelection.put(position, value);
+            notifyDataSetChanged();
+        }
+
+        public long[] getCurrentSelectedMasterKeyIds() {
+            long[] ids = new long[mSelection.size()];
+            int i = 0;
+            // get master key ids
+            for (int pos : mSelection.keySet()) {
+                ids[i++] = mAdapter.getMasterKeyId(pos);
+            }
+            return ids;
+        }
+
+        public void removeSelection(int position) {
+            mSelection.remove(position);
+            notifyDataSetChanged();
+        }
+
+        public void clearSelection() {
+            mSelection.clear();
+            notifyDataSetChanged();
+        }
+
+        @Override
+        public View getView(int position, View convertView, ViewGroup parent) {
+            // let the adapter handle setting up the row views
+            View v = super.getView(position, convertView, parent);
+
+            /**
+             * Change color for multi-selection
+             */
+            if (mSelection.get(position) != null) {
+                // selected position color
+                v.setBackgroundColor(parent.getResources().getColor(R.color.emphasis));
+            } else {
+                // default color
+                v.setBackgroundColor(Color.TRANSPARENT);
+            }
+
+            return v;
+        }
+
+    }
+
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListPublicActivity.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListPublicActivity.java
deleted file mode 100644
index 4521786f7..000000000
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListPublicActivity.java
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package org.sufficientlysecure.keychain.ui;
-
-import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.Id;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.helper.ExportHelper;
-
-import android.content.Intent;
-import android.os.Bundle;
-import android.view.Menu;
-import android.view.MenuItem;
-
-public class KeyListPublicActivity extends DrawerActivity {
-
-    ExportHelper mExportHelper;
-
-    @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-
-        mExportHelper = new ExportHelper(this);
-
-        setContentView(R.layout.key_list_public_activity);
-
-        // now setup navigation drawer in DrawerActivity...
-        setupDrawerNavigation(savedInstanceState);
-    }
-
-    @Override
-    public boolean onCreateOptionsMenu(Menu menu) {
-        super.onCreateOptionsMenu(menu);
-        getMenuInflater().inflate(R.menu.key_list_public, menu);
-        return true;
-    }
-
-    @Override
-    public boolean onOptionsItemSelected(MenuItem item) {
-        switch (item.getItemId()) {
-        case R.id.menu_key_list_public_import:
-            Intent intentImport = new Intent(this, ImportKeysActivity.class);
-            startActivityForResult(intentImport, 0);
-
-            return true;
-        case R.id.menu_key_list_public_export:
-            mExportHelper.showExportKeysDialog(null, Id.type.public_key, Constants.path.APP_DIR
-                    + "/pubexport.asc");
-
-            return true;
-        default:
-            return super.onOptionsItemSelected(item);
-        }
-    }
-
-}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListPublicFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListPublicFragment.java
deleted file mode 100644
index f2cb8a265..000000000
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListPublicFragment.java
+++ /dev/null
@@ -1,382 +0,0 @@
-/*
- * Copyright (C) 2013 Dominik Schürmann <dominik@dominikschuermann.de>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package org.sufficientlysecure.keychain.ui;
-
-import java.util.ArrayList;
-import java.util.Set;
-
-import org.sufficientlysecure.keychain.Id;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.provider.KeychainContract;
-import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
-import org.sufficientlysecure.keychain.provider.KeychainContract.UserIds;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
-import org.sufficientlysecure.keychain.ui.adapter.KeyListPublicAdapter;
-import org.sufficientlysecure.keychain.ui.dialog.DeleteKeyDialogFragment;
-
-import se.emilsjolander.stickylistheaders.ApiLevelTooLowException;
-import se.emilsjolander.stickylistheaders.StickyListHeadersListView;
-
-import android.annotation.SuppressLint;
-import android.annotation.TargetApi;
-import android.content.Intent;
-import android.database.Cursor;
-import android.net.Uri;
-import android.os.Build;
-import android.os.Bundle;
-import android.os.Handler;
-import android.os.Message;
-import android.os.Messenger;
-import android.support.v4.app.Fragment;
-import android.support.v4.app.LoaderManager;
-import android.support.v4.content.CursorLoader;
-import android.support.v4.content.Loader;
-import android.support.v4.view.MenuItemCompat;
-import android.support.v7.widget.SearchView;
-import android.text.TextUtils;
-import android.view.ActionMode;
-import android.view.LayoutInflater;
-import android.view.Menu;
-import android.view.MenuInflater;
-import android.view.MenuItem;
-import android.view.View;
-import android.view.View.OnClickListener;
-import android.view.ViewGroup;
-import android.widget.AbsListView.MultiChoiceModeListener;
-import android.widget.AdapterView;
-import android.widget.ListView;
-import android.widget.Toast;
-
-import com.beardedhen.androidbootstrap.BootstrapButton;
-
-/**
- * Public key list with sticky list headers. It does _not_ extend ListFragment because it uses
- * StickyListHeaders library which does not extend upon ListView.
- */
-public class KeyListPublicFragment extends Fragment implements SearchView.OnQueryTextListener, AdapterView.OnItemClickListener,
-        LoaderManager.LoaderCallbacks<Cursor> {
-
-    private KeyListPublicAdapter mAdapter;
-    private StickyListHeadersListView mStickyList;
-    private String mCurQuery;
-    private SearchView mSearchView;
-    // empty list layout
-    private BootstrapButton mButtonEmptyCreate;
-    private BootstrapButton mButtonEmptyImport;
-
-
-    /**
-     * Load custom layout with StickyListView from library
-     */
-    @Override
-    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
-        View view = inflater.inflate(R.layout.key_list_public_fragment, container, false);
-        setHasOptionsMenu(true);
-        mButtonEmptyCreate = (BootstrapButton) view.findViewById(R.id.key_list_empty_button_create);
-        mButtonEmptyCreate.setOnClickListener(new OnClickListener() {
-
-            @Override
-            public void onClick(View v) {
-                Intent intent = new Intent(getActivity(), EditKeyActivity.class);
-                intent.setAction(EditKeyActivity.ACTION_CREATE_KEY);
-                intent.putExtra(EditKeyActivity.EXTRA_GENERATE_DEFAULT_KEYS, true);
-                intent.putExtra(EditKeyActivity.EXTRA_USER_IDS, ""); // show user id view
-                startActivityForResult(intent, 0);
-            }
-        });
-
-        mButtonEmptyImport = (BootstrapButton) view.findViewById(R.id.key_list_empty_button_import);
-        mButtonEmptyImport.setOnClickListener(new OnClickListener() {
-
-            @Override
-            public void onClick(View v) {
-                Intent intent = new Intent(getActivity(), ImportKeysActivity.class);
-                intent.setAction(ImportKeysActivity.ACTION_IMPORT_KEY_FROM_FILE);
-                startActivityForResult(intent, 0);
-            }
-        });
-
-        return view;
-    }
-
-    /**
-     * Define Adapter and Loader on create of Activity
-     */
-    @SuppressLint("NewApi")
-    @Override
-    public void onActivityCreated(Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-
-        mStickyList = (StickyListHeadersListView) getActivity().findViewById(R.id.list);
-
-        mStickyList.setOnItemClickListener(this);
-        mStickyList.setAreHeadersSticky(true);
-        mStickyList.setDrawingListUnderStickyHeader(false);
-        mStickyList.setFastScrollEnabled(true);
-        try {
-            mStickyList.setFastScrollAlwaysVisible(true);
-        } catch (ApiLevelTooLowException e) {
-        }
-
-        // this view is made visible if no data is available
-        mStickyList.setEmptyView(getActivity().findViewById(R.id.empty));
-
-        /*
-         * ActionBarSherlock does not support MultiChoiceModeListener. Thus multi-selection is only
-         * available for Android >= 3.0
-         */
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
-            mStickyList.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE_MODAL);
-            mStickyList.getWrappedList().setMultiChoiceModeListener(new MultiChoiceModeListener() {
-
-                @Override
-                public boolean onCreateActionMode(ActionMode mode, Menu menu) {
-                    android.view.MenuInflater inflater = getActivity().getMenuInflater();
-                    inflater.inflate(R.menu.key_list_public_multi, menu);
-                    return true;
-                }
-
-                @Override
-                public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
-                    return false;
-                }
-
-                @Override
-                public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
-                    Set<Integer> positions = mAdapter.getCurrentCheckedPosition();
-
-                    // get IDs for checked positions as long array
-                    long[] ids = new long[positions.size()];
-                    int i = 0;
-                    for (int pos : positions) {
-                        ids[i] = mAdapter.getItemId(pos);
-                        i++;
-                    }
-
-                    switch (item.getItemId()) {
-                        case R.id.menu_key_list_public_multi_encrypt: {
-                            encrypt(mode, ids);
-                            break;
-                        }
-                        case R.id.menu_key_list_public_multi_delete: {
-                            showDeleteKeyDialog(mode, ids);
-                            break;
-                        }
-                        case R.id.menu_key_list_public_multi_select_all: {
-                            //Select all
-                            int localCount = mStickyList.getCount();
-                            for(int k = 0; k < localCount; k++) {
-                                mStickyList.setItemChecked(k, true);
-                            }
-                            break;
-                        }
-                    }
-                    return true;
-                }
-
-                @Override
-                public void onDestroyActionMode(ActionMode mode) {
-                    mAdapter.clearSelection();
-                }
-
-                @Override
-                public void onItemCheckedStateChanged(ActionMode mode, int position, long id,
-                                                      boolean checked) {
-                    if (checked) {
-                        mAdapter.setNewSelection(position, checked);
-                    } else {
-                        mAdapter.removeSelection(position);
-                    }
-                    int count = mAdapter.getCurrentCheckedPosition().size();
-                    String keysSelected = getResources().getQuantityString(
-                            R.plurals.key_list_selected_keys, count, count);
-                    mode.setTitle(keysSelected);
-                }
-
-            });
-        }
-
-        // NOTE: Not supported by StickyListHeader, thus no indicator is shown while loading
-        // Start out with a progress indicator.
-        // setListShown(false);
-
-        // Create an empty adapter we will use to display the loaded data.
-        mAdapter = new KeyListPublicAdapter(getActivity(), null, Id.type.public_key, USER_ID_INDEX);
-        mStickyList.setAdapter(mAdapter);
-
-        // Prepare the loader. Either re-connect with an existing one,
-        // or start a new one.
-        getLoaderManager().initLoader(0, null, this);
-    }
-
-    // These are the rows that we will retrieve.
-    static final String[] PROJECTION = new String[]{
-            KeychainContract.KeyRings._ID,
-            KeychainContract.KeyRings.MASTER_KEY_ID,
-            KeychainContract.UserIds.USER_ID,
-            KeychainContract.Keys.IS_REVOKED
-    };
-
-    static final int USER_ID_INDEX = 2;
-
-    static final String SORT_ORDER = UserIds.USER_ID + " ASC";
-
-    @Override
-    public Loader<Cursor> onCreateLoader(int id, Bundle args) {
-        // This is called when a new Loader needs to be created. This
-        // sample only has one Loader, so we don't care about the ID.
-        Uri baseUri = KeyRings.buildPublicKeyRingsUri();
-        String where = null;
-        String whereArgs[] = null;
-        if(mCurQuery != null){
-            where = KeychainContract.UserIds.USER_ID + " LIKE ?";
-            whereArgs = new String[]{mCurQuery+"%"};
-        }
-        // Now create and return a CursorLoader that will take care of
-        // creating a Cursor for the data being displayed.
-        return new CursorLoader(getActivity(), baseUri, PROJECTION, where, whereArgs, SORT_ORDER);
-    }
-
-    @Override
-    public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
-        // Swap the new cursor in. (The framework will take care of closing the
-        // old cursor once we return.)
-        mAdapter.swapCursor(data);
-
-        mStickyList.setAdapter(mAdapter);
-
-        // NOTE: Not supported by StickyListHeader, thus no indicator is shown while loading
-        // The list should now be shown.
-        // if (isResumed()) {
-        // setListShown(true);
-        // } else {
-        // setListShownNoAnimation(true);
-        // }
-    }
-
-    @Override
-    public void onLoaderReset(Loader<Cursor> loader) {
-        // This is called when the last Cursor provided to onLoadFinished()
-        // above is about to be closed. We need to make sure we are no
-        // longer using it.
-        mAdapter.swapCursor(null);
-    }
-
-    /**
-     * On click on item, start key view activity
-     */
-    @Override
-    public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
-        Intent viewIntent = null;
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
-            viewIntent = new Intent(getActivity(), ViewKeyActivity.class);
-        } else {
-            viewIntent = new Intent(getActivity(), ViewKeyActivityJB.class);
-        }
-        viewIntent.setData(KeychainContract.KeyRings.buildPublicKeyRingsUri(Long.toString(id)));
-        startActivity(viewIntent);
-    }
-    
-    @TargetApi(11)
-    public void encrypt(ActionMode mode, long[] keyRingRowIds) {
-        // get master key ids from row ids
-        long[] keyRingIds = new long[keyRingRowIds.length];
-        for (int i = 0; i < keyRingRowIds.length; i++) {
-            keyRingIds[i] = ProviderHelper.getPublicMasterKeyId(getActivity(), keyRingRowIds[i]);
-        }
-
-        Intent intent = new Intent(getActivity(), EncryptActivity.class);
-        intent.setAction(EncryptActivity.ACTION_ENCRYPT);
-        intent.putExtra(EncryptActivity.EXTRA_ENCRYPTION_KEY_IDS, keyRingIds);
-        // used instead of startActivity set actionbar based on callingPackage
-        startActivityForResult(intent, 0);
-
-        mode.finish();
-    }
-
-    /**
-     * Show dialog to delete key
-     *
-     * @param keyRingRowIds
-     */
-    @TargetApi(11)
-    public void showDeleteKeyDialog(final ActionMode mode, long[] keyRingRowIds) {
-        // Message is received after key is deleted
-        Handler returnHandler = new Handler() {
-            @Override
-            public void handleMessage(Message message) {
-                if (message.what == DeleteKeyDialogFragment.MESSAGE_OKAY) {
-                    Bundle returnData = message.getData();
-                    if (returnData != null
-                            && returnData.containsKey(DeleteKeyDialogFragment.MESSAGE_NOT_DELETED)) {
-                        ArrayList<String> notDeleted =
-                                returnData.getStringArrayList(DeleteKeyDialogFragment.MESSAGE_NOT_DELETED);
-                        String notDeletedMsg = "";
-                        for (String userId : notDeleted) {
-                            notDeletedMsg += userId + "\n";
-                        }
-                        Toast.makeText(getActivity(), getString(R.string.error_can_not_delete_contacts, notDeletedMsg)
-                                + getResources().getQuantityString(R.plurals.error_can_not_delete_info, notDeleted.size()),
-                                Toast.LENGTH_LONG).show();
-
-                        mode.finish();
-                    }
-                }
-            }
-        };
-
-        // Create a new Messenger for the communication back
-        Messenger messenger = new Messenger(returnHandler);
-
-        DeleteKeyDialogFragment deleteKeyDialog = DeleteKeyDialogFragment.newInstance(messenger,
-                keyRingRowIds, Id.type.public_key);
-
-        deleteKeyDialog.show(getActivity().getSupportFragmentManager(), "deleteKeyDialog");
-    }
-
-
-    @Override
-    public void onCreateOptionsMenu(final Menu menu, final MenuInflater inflater) {
-
-        // Get the searchview
-        MenuItem searchItem = menu.findItem(R.id.menu_key_list_public_search);
-        mSearchView = (SearchView) MenuItemCompat.getActionView(searchItem);
-
-        // Execute this when searching
-        mSearchView.setOnQueryTextListener(this);
-
-        super.onCreateOptionsMenu(menu, inflater);
-
-    }
-
-    @Override
-    public boolean onQueryTextSubmit(String s) {
-        return true;
-    }
-
-    @Override
-    public boolean onQueryTextChange(String s) {
-        // Called when the action bar search text has changed.  Update
-        // the search filter, and restart the loader to do a new query
-        // with this filter.
-        String newQuery = !TextUtils.isEmpty(s) ? s : null;
-        mCurQuery = newQuery;
-        getLoaderManager().restartLoader(0, null, this);
-        return true;
-    }
-}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListSecretFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListSecretFragment.java
deleted file mode 100644
index eaac6d8b1..000000000
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListSecretFragment.java
+++ /dev/null
@@ -1,238 +0,0 @@
-/*
- * Copyright (C) 2013 Dominik Schürmann <dominik@dominikschuermann.de>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package org.sufficientlysecure.keychain.ui;
-
-import java.util.ArrayList;
-import java.util.Set;
-
-import org.sufficientlysecure.keychain.Id;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.provider.KeychainContract;
-import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
-import org.sufficientlysecure.keychain.provider.KeychainContract.UserIds;
-import org.sufficientlysecure.keychain.ui.adapter.KeyListSecretAdapter;
-import org.sufficientlysecure.keychain.ui.dialog.DeleteKeyDialogFragment;
-
-import android.annotation.SuppressLint;
-import android.annotation.TargetApi;
-import android.content.Intent;
-import android.database.Cursor;
-import android.net.Uri;
-import android.os.Build;
-import android.os.Bundle;
-import android.os.Handler;
-import android.os.Message;
-import android.os.Messenger;
-import android.support.v4.app.ListFragment;
-import android.support.v4.app.LoaderManager;
-import android.support.v4.content.CursorLoader;
-import android.support.v4.content.Loader;
-import android.view.ActionMode;
-import android.view.Menu;
-import android.view.MenuItem;
-import android.view.View;
-import android.widget.AdapterView;
-import android.widget.ListView;
-import android.widget.AbsListView.MultiChoiceModeListener;
-import android.widget.AdapterView.OnItemClickListener;
-import android.widget.Toast;
-
-public class KeyListSecretFragment extends ListFragment implements
-        LoaderManager.LoaderCallbacks<Cursor>, OnItemClickListener {
-
-    private KeyListSecretActivity mKeyListSecretActivity;
-    private KeyListSecretAdapter mAdapter;
-
-    /**
-     * Define Adapter and Loader on create of Activity
-     */
-    @SuppressLint("NewApi")
-    @Override
-    public void onActivityCreated(Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-
-        mKeyListSecretActivity = (KeyListSecretActivity) getActivity();
-
-        getListView().setOnItemClickListener(this);
-
-        // Give some text to display if there is no data. In a real
-        // application this would come from a resource.
-        setEmptyText(getString(R.string.list_empty));
-
-        /*
-         * ActionBarSherlock does not support MultiChoiceModeListener. Thus multi-selection is only
-         * available for Android >= 3.0
-         */
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
-            getListView().setChoiceMode(ListView.CHOICE_MODE_MULTIPLE_MODAL);
-            getListView().setMultiChoiceModeListener(new MultiChoiceModeListener() {
-
-                @Override
-                public boolean onCreateActionMode(ActionMode mode, Menu menu) {
-                    android.view.MenuInflater inflater = getActivity().getMenuInflater();
-                    inflater.inflate(R.menu.key_list_secret_multi, menu);
-                    return true;
-                }
-
-                @Override
-                public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
-                    return false;
-                }
-
-                @Override
-                public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
-                    Set<Integer> positions = mAdapter.getCurrentCheckedPosition();
-
-                    // get IDs for checked positions as long array
-                    long[] ids = new long[positions.size()];
-                    int i = 0;
-                    for (int pos : positions) {
-                        ids[i] = mAdapter.getItemId(pos);
-                        i++;
-                    }
-
-                    switch (item.getItemId()) {
-                        case R.id.menu_key_list_public_multi_delete: {
-                            showDeleteKeyDialog(mode, ids);
-                            break;
-                        }
-                        case R.id.menu_key_list_public_multi_select_all: {
-                            //Select all
-                            int localCount = getListView().getCount();
-                            for(int k = 0; k < localCount; k++) {
-                                getListView().setItemChecked(k, true);
-                            }
-                            break;
-                        }
-                    }
-                    return true;
-                }
-
-                @Override
-                public void onDestroyActionMode(ActionMode mode) {
-                    mAdapter.clearSelection();
-                }
-
-                @Override
-                public void onItemCheckedStateChanged(ActionMode mode, int position, long id,
-                                                      boolean checked) {
-                    if (checked) {
-                        mAdapter.setNewSelection(position, checked);
-                    } else {
-                        mAdapter.removeSelection(position);
-                    }
-
-                    int count = getListView().getCheckedItemCount();
-                    String keysSelected = getResources().getQuantityString(
-                            R.plurals.key_list_selected_keys, count, count);
-                    mode.setTitle(keysSelected);
-                }
-
-            });
-        }
-
-        // We have a menu item to show in action bar.
-        setHasOptionsMenu(true);
-
-        // Start out with a progress indicator.
-        setListShown(false);
-
-        // Create an empty adapter we will use to display the loaded data.
-        mAdapter = new KeyListSecretAdapter(mKeyListSecretActivity, null, 0);
-        setListAdapter(mAdapter);
-
-        // Prepare the loader. Either re-connect with an existing one,
-        // or start a new one.
-        getLoaderManager().initLoader(0, null, this);
-    }
-
-    // These are the rows that we will retrieve.
-    static final String[] PROJECTION = new String[]{KeyRings._ID, KeyRings.MASTER_KEY_ID,
-            UserIds.USER_ID};
-    static final String SORT_ORDER = UserIds.USER_ID + " COLLATE LOCALIZED ASC";
-
-    public Loader<Cursor> onCreateLoader(int id, Bundle args) {
-        // This is called when a new Loader needs to be created. This
-        // sample only has one Loader, so we don't care about the ID.
-        // First, pick the base URI to use depending on whether we are
-        // currently filtering.
-        Uri baseUri = KeyRings.buildSecretKeyRingsUri();
-
-        // Now create and return a CursorLoader that will take care of
-        // creating a Cursor for the data being displayed.
-        return new CursorLoader(getActivity(), baseUri, PROJECTION, null, null, SORT_ORDER);
-    }
-
-    public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
-        // Swap the new cursor in. (The framework will take care of closing the
-        // old cursor once we return.)
-        mAdapter.swapCursor(data);
-
-        // The list should now be shown.
-        if (isResumed()) {
-            setListShown(true);
-        } else {
-            setListShownNoAnimation(true);
-        }
-    }
-
-    public void onLoaderReset(Loader<Cursor> loader) {
-        // This is called when the last Cursor provided to onLoadFinished()
-        // above is about to be closed. We need to make sure we are no
-        // longer using it.
-        mAdapter.swapCursor(null);
-    }
-
-    /**
-     * On click on item, start key view activity
-     */
-    @Override
-    public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
-        Intent editIntent = new Intent(mKeyListSecretActivity, EditKeyActivity.class);
-        editIntent.setData(KeychainContract.KeyRings.buildSecretKeyRingsUri(Long.toString(id)));
-        editIntent.setAction(EditKeyActivity.ACTION_EDIT_KEY);
-        startActivityForResult(editIntent, 0);
-    }
-
-    /**
-     * Show dialog to delete key
-     *
-     * @param keyRingRowIds
-     */
-    @TargetApi(11)
-    public void showDeleteKeyDialog(final ActionMode mode, long[] keyRingRowIds) {
-        // Message is received after key is deleted
-        Handler returnHandler = new Handler() {
-            @Override
-            public void handleMessage(Message message) {
-                if (message.what == DeleteKeyDialogFragment.MESSAGE_OKAY) {
-                    mode.finish();
-                }
-            }
-        };
-
-        // Create a new Messenger for the communication back
-        Messenger messenger = new Messenger(returnHandler);
-
-        DeleteKeyDialogFragment deleteKeyDialog = DeleteKeyDialogFragment.newInstance(messenger,
-                keyRingRowIds, Id.type.secret_key);
-
-        deleteKeyDialog.show(getActivity().getSupportFragmentManager(), "deleteKeyDialog");
-    }
-
-}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/PreferencesActivity.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/PreferencesActivity.java
index af20b499b..04179cb80 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/PreferencesActivity.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/PreferencesActivity.java
@@ -16,6 +16,11 @@
 
 package org.sufficientlysecure.keychain.ui;
 
+import android.annotation.SuppressLint;
+import android.content.Intent;
+import android.os.Build;
+import android.os.Bundle;
+import android.preference.*;
 import org.spongycastle.bcpg.HashAlgorithmTags;
 import org.spongycastle.openpgp.PGPEncryptedData;
 import org.sufficientlysecure.keychain.Constants;
@@ -24,25 +29,13 @@ import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.helper.Preferences;
 import org.sufficientlysecure.keychain.ui.widget.IntegerListPreference;
 
-import android.annotation.SuppressLint;
-import android.content.Context;
-import android.content.Intent;
-import android.os.Build;
-import android.os.Bundle;
-import android.preference.CheckBoxPreference;
-import android.preference.Preference;
-import android.preference.PreferenceActivity;
-import android.preference.PreferenceFragment;
-import android.preference.PreferenceScreen;
-import android.support.v7.app.ActionBarActivity;
-
 import java.util.List;
 
 @SuppressLint("NewApi")
 public class PreferencesActivity extends PreferenceActivity {
 
-    public final static String ACTION_PREFS_GEN = "org.sufficientlysecure.keychain.ui.PREFS_GEN";
-    public final static String ACTION_PREFS_ADV = "org.sufficientlysecure.keychain.ui.PREFS_ADV";
+    public static final String ACTION_PREFS_GEN = "org.sufficientlysecure.keychain.ui.PREFS_GEN";
+    public static final String ACTION_PREFS_ADV = "org.sufficientlysecure.keychain.ui.PREFS_ADV";
 
     private PreferenceScreen mKeyServerPreference = null;
     private static Preferences mPreferences;
@@ -57,16 +50,15 @@ public class PreferencesActivity extends PreferenceActivity {
 //        actionBar.setDisplayHomeAsUpEnabled(false);
 //        actionBar.setHomeButtonEnabled(false);
 
-        //addPreferencesFromResource(R.xml.preferences);
         String action = getIntent().getAction();
 
         if (action != null && action.equals(ACTION_PREFS_GEN)) {
             addPreferencesFromResource(R.xml.gen_preferences);
 
             initializePassPassPhraceCacheTtl(
-                    (IntegerListPreference) findPreference(Constants.pref.PASS_PHRASE_CACHE_TTL));
+                    (IntegerListPreference) findPreference(Constants.Pref.PASS_PHRASE_CACHE_TTL));
 
-            mKeyServerPreference = (PreferenceScreen) findPreference(Constants.pref.KEY_SERVERS);
+            mKeyServerPreference = (PreferenceScreen) findPreference(Constants.Pref.KEY_SERVERS);
             String servers[] = mPreferences.getKeyServers();
             mKeyServerPreference.setSummary(getResources().getQuantityString(R.plurals.n_key_servers,
                     servers.length, servers.length));
@@ -86,11 +78,11 @@ public class PreferencesActivity extends PreferenceActivity {
             addPreferencesFromResource(R.xml.adv_preferences);
 
             initializeEncryptionAlgorithm(
-                    (IntegerListPreference) findPreference(Constants.pref.DEFAULT_ENCRYPTION_ALGORITHM));
+                    (IntegerListPreference) findPreference(Constants.Pref.DEFAULT_ENCRYPTION_ALGORITHM));
 
-            int[] valueIds = new int[] { Id.choice.compression.none, Id.choice.compression.zip,
+            int[] valueIds = new int[]{Id.choice.compression.none, Id.choice.compression.zip,
                     Id.choice.compression.zlib, Id.choice.compression.bzip2, };
-            String[] entries = new String[] {
+            String[] entries = new String[]{
                     getString(R.string.choice_none) + " (" + getString(R.string.compression_fast) + ")",
                     "ZIP (" + getString(R.string.compression_fast) + ")",
                     "ZLIB (" + getString(R.string.compression_fast) + ")",
@@ -101,20 +93,22 @@ public class PreferencesActivity extends PreferenceActivity {
             }
 
             initializeHashAlgorithm(
-                    (IntegerListPreference) findPreference(Constants.pref.DEFAULT_HASH_ALGORITHM),
-                                            valueIds, entries, values);
+                    (IntegerListPreference) findPreference(Constants.Pref.DEFAULT_HASH_ALGORITHM),
+                    valueIds, entries, values);
 
             initializeMessageCompression(
-                    (IntegerListPreference) findPreference(Constants.pref.DEFAULT_MESSAGE_COMPRESSION),
-                                            valueIds, entries, values);
+                    (IntegerListPreference) findPreference(Constants.Pref.DEFAULT_MESSAGE_COMPRESSION),
+                    valueIds, entries, values);
 
             initializeFileCompression(
-                    (IntegerListPreference) findPreference(Constants.pref.DEFAULT_FILE_COMPRESSION),
-                                            entries, values);
+                    (IntegerListPreference) findPreference(Constants.Pref.DEFAULT_FILE_COMPRESSION),
+                    entries, values);
 
-            initializeAsciiArmour((CheckBoxPreference) findPreference(Constants.pref.DEFAULT_ASCII_ARMOUR));
+            initializeAsciiArmour(
+                    (CheckBoxPreference) findPreference(Constants.Pref.DEFAULT_ASCII_ARMOUR));
 
-            initializeForceV3Signatures((CheckBoxPreference) findPreference(Constants.pref.FORCE_V3_SIGNATURES));
+            initializeForceV3Signatures(
+                    (CheckBoxPreference) findPreference(Constants.Pref.FORCE_V3_SIGNATURES));
 
         } else if (Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB) {
             // Load the legacy preferences headers
@@ -151,7 +145,9 @@ public class PreferencesActivity extends PreferenceActivity {
         loadHeadersFromResource(R.xml.preference_headers, target);
     }
 
-    /** This fragment shows the general preferences in android 3.0+ */
+    /**
+     * This fragment shows the general preferences in android 3.0+
+     */
     public static class GeneralPrefsFragment extends PreferenceFragment {
 
         private PreferenceScreen mKeyServerPreference = null;
@@ -164,9 +160,9 @@ public class PreferencesActivity extends PreferenceActivity {
             addPreferencesFromResource(R.xml.gen_preferences);
 
             initializePassPassPhraceCacheTtl(
-                    (IntegerListPreference) findPreference(Constants.pref.PASS_PHRASE_CACHE_TTL));
+                    (IntegerListPreference) findPreference(Constants.Pref.PASS_PHRASE_CACHE_TTL));
 
-            mKeyServerPreference = (PreferenceScreen) findPreference(Constants.pref.KEY_SERVERS);
+            mKeyServerPreference = (PreferenceScreen) findPreference(Constants.Pref.KEY_SERVERS);
             String servers[] = mPreferences.getKeyServers();
             mKeyServerPreference.setSummary(getResources().getQuantityString(R.plurals.n_key_servers,
                     servers.length, servers.length));
@@ -206,7 +202,9 @@ public class PreferencesActivity extends PreferenceActivity {
         }
     }
 
-    /** This fragment shows the advanced preferences in android 3.0+ */
+    /**
+     * This fragment shows the advanced preferences in android 3.0+
+     */
     public static class AdvancedPrefsFragment extends PreferenceFragment {
 
         @Override
@@ -217,11 +215,11 @@ public class PreferencesActivity extends PreferenceActivity {
             addPreferencesFromResource(R.xml.adv_preferences);
 
             initializeEncryptionAlgorithm(
-                    (IntegerListPreference) findPreference(Constants.pref.DEFAULT_ENCRYPTION_ALGORITHM));
+                    (IntegerListPreference) findPreference(Constants.Pref.DEFAULT_ENCRYPTION_ALGORITHM));
 
-            int[] valueIds = new int[] { Id.choice.compression.none, Id.choice.compression.zip,
+            int[] valueIds = new int[]{Id.choice.compression.none, Id.choice.compression.zip,
                     Id.choice.compression.zlib, Id.choice.compression.bzip2, };
-            String[] entries = new String[] {
+            String[] entries = new String[]{
                     getString(R.string.choice_none) + " (" + getString(R.string.compression_fast) + ")",
                     "ZIP (" + getString(R.string.compression_fast) + ")",
                     "ZLIB (" + getString(R.string.compression_fast) + ")",
@@ -232,24 +230,26 @@ public class PreferencesActivity extends PreferenceActivity {
             }
 
             initializeHashAlgorithm(
-                    (IntegerListPreference) findPreference(Constants.pref.DEFAULT_HASH_ALGORITHM),
-                                                                    valueIds, entries, values);
+                    (IntegerListPreference) findPreference(Constants.Pref.DEFAULT_HASH_ALGORITHM),
+                    valueIds, entries, values);
 
             initializeMessageCompression(
-                    (IntegerListPreference) findPreference(Constants.pref.DEFAULT_MESSAGE_COMPRESSION),
-                                                                valueIds, entries, values);
+                    (IntegerListPreference) findPreference(Constants.Pref.DEFAULT_MESSAGE_COMPRESSION),
+                    valueIds, entries, values);
 
             initializeFileCompression(
-                    (IntegerListPreference) findPreference(Constants.pref.DEFAULT_FILE_COMPRESSION),
+                    (IntegerListPreference) findPreference(Constants.Pref.DEFAULT_FILE_COMPRESSION),
                     entries, values);
 
-            initializeAsciiArmour((CheckBoxPreference) findPreference(Constants.pref.DEFAULT_ASCII_ARMOUR));
+            initializeAsciiArmour(
+                    (CheckBoxPreference) findPreference(Constants.Pref.DEFAULT_ASCII_ARMOUR));
 
-            initializeForceV3Signatures((CheckBoxPreference) findPreference(Constants.pref.FORCE_V3_SIGNATURES));
+            initializeForceV3Signatures(
+                    (CheckBoxPreference) findPreference(Constants.Pref.FORCE_V3_SIGNATURES));
         }
     }
 
-    protected boolean isValidFragment (String fragmentName) {
+    protected boolean isValidFragment(String fragmentName) {
         return AdvancedPrefsFragment.class.getName().equals(fragmentName)
                 || GeneralPrefsFragment.class.getName().equals(fragmentName)
                 || super.isValidFragment(fragmentName);
@@ -270,11 +270,11 @@ public class PreferencesActivity extends PreferenceActivity {
     }
 
     private static void initializeEncryptionAlgorithm(final IntegerListPreference mEncryptionAlgorithm) {
-        int valueIds[] = { PGPEncryptedData.AES_128, PGPEncryptedData.AES_192,
+        int valueIds[] = {PGPEncryptedData.AES_128, PGPEncryptedData.AES_192,
                 PGPEncryptedData.AES_256, PGPEncryptedData.BLOWFISH, PGPEncryptedData.TWOFISH,
                 PGPEncryptedData.CAST5, PGPEncryptedData.DES, PGPEncryptedData.TRIPLE_DES,
                 PGPEncryptedData.IDEA, };
-        String entries[] = { "AES-128", "AES-192", "AES-256", "Blowfish", "Twofish", "CAST5",
+        String entries[] = {"AES-128", "AES-192", "AES-256", "Blowfish", "Twofish", "CAST5",
                 "DES", "Triple DES", "IDEA", };
         String values[] = new String[valueIds.length];
         for (int i = 0; i < values.length; ++i) {
@@ -298,10 +298,10 @@ public class PreferencesActivity extends PreferenceActivity {
 
     private static void initializeHashAlgorithm
             (final IntegerListPreference mHashAlgorithm, int[] valueIds, String[] entries, String[] values) {
-        valueIds = new int[] { HashAlgorithmTags.MD5, HashAlgorithmTags.RIPEMD160,
+        valueIds = new int[]{HashAlgorithmTags.MD5, HashAlgorithmTags.RIPEMD160,
                 HashAlgorithmTags.SHA1, HashAlgorithmTags.SHA224, HashAlgorithmTags.SHA256,
                 HashAlgorithmTags.SHA384, HashAlgorithmTags.SHA512, };
-        entries = new String[] { "MD5", "RIPEMD-160", "SHA-1", "SHA-224", "SHA-256", "SHA-384",
+        entries = new String[]{"MD5", "RIPEMD-160", "SHA-1", "SHA-224", "SHA-256", "SHA-384",
                 "SHA-512", };
         values = new String[valueIds.length];
         for (int i = 0; i < values.length; ++i) {
@@ -321,8 +321,9 @@ public class PreferencesActivity extends PreferenceActivity {
         });
     }
 
-    private static void initializeMessageCompression
-            (final IntegerListPreference mMessageCompression, int[] valueIds, String[] entries, String[] values) {
+    private static void initializeMessageCompression(
+            final IntegerListPreference mMessageCompression,
+            int[] valueIds, String[] entries, String[] values) {
         mMessageCompression.setEntries(entries);
         mMessageCompression.setEntryValues(values);
         mMessageCompression.setValue("" + mPreferences.getDefaultMessageCompression());
@@ -377,4 +378,4 @@ public class PreferencesActivity extends PreferenceActivity {
                     }
                 });
     }
-}
\ No newline at end of file
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/PreferencesKeyServerActivity.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/PreferencesKeyServerActivity.java
index b39b93f52..719378274 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/PreferencesKeyServerActivity.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/PreferencesKeyServerActivity.java
@@ -16,14 +16,6 @@
 
 package org.sufficientlysecure.keychain.ui;
 
-import java.util.Vector;
-
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.helper.ActionBarHelper;
-import org.sufficientlysecure.keychain.ui.widget.Editor;
-import org.sufficientlysecure.keychain.ui.widget.Editor.EditorListener;
-import org.sufficientlysecure.keychain.ui.widget.KeyServerEditor;
-
 import android.content.Context;
 import android.content.Intent;
 import android.os.Bundle;
@@ -33,6 +25,13 @@ import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.ViewGroup;
 import android.widget.TextView;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.helper.ActionBarHelper;
+import org.sufficientlysecure.keychain.ui.widget.Editor;
+import org.sufficientlysecure.keychain.ui.widget.Editor.EditorListener;
+import org.sufficientlysecure.keychain.ui.widget.KeyServerEditor;
+
+import java.util.Vector;
 
 public class PreferencesKeyServerActivity extends ActionBarActivity implements OnClickListener,
         EditorListener {
@@ -50,20 +49,21 @@ public class PreferencesKeyServerActivity extends ActionBarActivity implements O
         super.onCreate(savedInstanceState);
 
         // Inflate a "Done"/"Cancel" custom action bar view
-        ActionBarHelper.setDoneCancelView(getSupportActionBar(), R.string.btn_okay,
+        ActionBarHelper.setTwoButtonView(getSupportActionBar(), R.string.btn_okay, R.drawable.ic_action_done,
                 new View.OnClickListener() {
                     @Override
                     public void onClick(View v) {
                         // ok
                         okClicked();
                     }
-                }, R.string.btn_do_not_save, new View.OnClickListener() {
+                }, R.string.btn_do_not_save, R.drawable.ic_action_cancel, new View.OnClickListener() {
                     @Override
                     public void onClick(View v) {
                         // cancel
                         cancelClicked();
                     }
-                });
+                }
+        );
 
         setContentView(R.layout.key_server_preference);
 
@@ -81,11 +81,11 @@ public class PreferencesKeyServerActivity extends ActionBarActivity implements O
         Intent intent = getIntent();
         String servers[] = intent.getStringArrayExtra(EXTRA_KEY_SERVERS);
         if (servers != null) {
-            for (int i = 0; i < servers.length; ++i) {
+            for (String serv : servers) {
                 KeyServerEditor view = (KeyServerEditor) mInflater.inflate(
                         R.layout.key_server_editor, mEditors, false);
                 view.setEditorListener(this);
-                view.setValue(servers[i]);
+                view.setValue(serv);
                 mEditors.addView(view);
             }
         }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectPublicKeyActivity.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectPublicKeyActivity.java
index 86ae0073f..874703704 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectPublicKeyActivity.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectPublicKeyActivity.java
@@ -17,14 +17,13 @@
 
 package org.sufficientlysecure.keychain.ui;
 
-import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.helper.ActionBarHelper;
-
 import android.content.Intent;
 import android.os.Bundle;
 import android.support.v7.app.ActionBarActivity;
 import android.view.View;
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.helper.ActionBarHelper;
 
 public class SelectPublicKeyActivity extends ActionBarActivity {
 
@@ -39,27 +38,28 @@ public class SelectPublicKeyActivity extends ActionBarActivity {
 
     SelectPublicKeyFragment mSelectFragment;
 
-    long selectedMasterKeyIds[];
+    long mSelectedMasterKeyIds[];
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
         // Inflate a "Done"/"Cancel" custom action bar view
-        ActionBarHelper.setDoneCancelView(getSupportActionBar(), R.string.btn_okay,
+        ActionBarHelper.setTwoButtonView(getSupportActionBar(), R.string.btn_okay, R.drawable.ic_action_done,
                 new View.OnClickListener() {
                     @Override
                     public void onClick(View v) {
                         // ok
                         okClicked();
                     }
-                }, R.string.btn_do_not_save, new View.OnClickListener() {
+                }, R.string.btn_do_not_save, R.drawable.ic_action_cancel, new View.OnClickListener() {
                     @Override
                     public void onClick(View v) {
                         // cancel
                         cancelClicked();
                     }
-                });
+                }
+        );
 
         setContentView(R.layout.select_public_key_activity);
 
@@ -79,7 +79,7 @@ public class SelectPublicKeyActivity extends ActionBarActivity {
             }
 
             // Create an instance of the fragment
-            mSelectFragment = SelectPublicKeyFragment.newInstance(selectedMasterKeyIds);
+            mSelectFragment = SelectPublicKeyFragment.newInstance(mSelectedMasterKeyIds);
 
             // Add the fragment to the 'fragment_container' FrameLayout
             getSupportFragmentManager().beginTransaction()
@@ -124,7 +124,7 @@ public class SelectPublicKeyActivity extends ActionBarActivity {
         // }
 
         // preselected master keys
-        selectedMasterKeyIds = intent.getLongArrayExtra(EXTRA_SELECTED_MASTER_KEY_IDS);
+        mSelectedMasterKeyIds = intent.getLongArrayExtra(EXTRA_SELECTED_MASTER_KEY_IDS);
     }
 
     private void cancelClicked() {
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectPublicKeyFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectPublicKeyFragment.java
index a43c84cf4..6ab9f1c6e 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectPublicKeyFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectPublicKeyFragment.java
@@ -17,20 +17,7 @@
 
 package org.sufficientlysecure.keychain.ui;
 
-import java.util.Date;
-import java.util.Vector;
-
-import org.sufficientlysecure.keychain.Id;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.compatibility.ListFragmentWorkaround;
-import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
-import org.sufficientlysecure.keychain.provider.KeychainContract.Keys;
-import org.sufficientlysecure.keychain.provider.KeychainContract.UserIds;
-import org.sufficientlysecure.keychain.provider.KeychainDatabase;
-import org.sufficientlysecure.keychain.provider.KeychainDatabase.Tables;
-import org.sufficientlysecure.keychain.ui.adapter.SelectKeyCursorAdapter;
-
-import android.app.Activity;
+import android.content.Context;
 import android.database.Cursor;
 import android.database.DatabaseUtils;
 import android.net.Uri;
@@ -41,20 +28,40 @@ import android.support.v4.content.Loader;
 import android.text.Editable;
 import android.text.TextUtils;
 import android.text.TextWatcher;
-import android.widget.EditText;
-import android.widget.ListView;
+import android.view.Gravity;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.*;
+import org.sufficientlysecure.keychain.Id;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.compatibility.ListFragmentWorkaround;
+import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
+import org.sufficientlysecure.keychain.provider.KeychainContract.Keys;
+import org.sufficientlysecure.keychain.provider.KeychainContract.UserIds;
+import org.sufficientlysecure.keychain.provider.KeychainDatabase;
+import org.sufficientlysecure.keychain.provider.KeychainDatabase.Tables;
+import org.sufficientlysecure.keychain.ui.adapter.SelectKeyCursorAdapter;
+
+import java.util.Date;
+import java.util.Vector;
 
 public class SelectPublicKeyFragment extends ListFragmentWorkaround implements TextWatcher,
         LoaderManager.LoaderCallbacks<Cursor> {
     public static final String ARG_PRESELECTED_KEY_IDS = "preselected_key_ids";
 
-    private Activity mActivity;
     private SelectKeyCursorAdapter mAdapter;
-    private ListView mListView;
     private EditText mSearchView;
     private long mSelectedMasterKeyIds[];
     private String mCurQuery;
 
+    // copied from ListFragment
+    static final int INTERNAL_EMPTY_ID = 0x00ff0001;
+    static final int INTERNAL_PROGRESS_CONTAINER_ID = 0x00ff0002;
+    static final int INTERNAL_LIST_CONTAINER_ID = 0x00ff0003;
+    // added for search view
+    static final int SEARCH_ID = 0x00ff0004;
+
     /**
      * Creates new instance of this fragment
      */
@@ -72,27 +79,101 @@ public class SelectPublicKeyFragment extends ListFragmentWorkaround implements T
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        mSearchView = (EditText)getActivity().findViewById(R.id.select_public_key_search);
-        mSearchView.addTextChangedListener(this);
         mSelectedMasterKeyIds = getArguments().getLongArray(ARG_PRESELECTED_KEY_IDS);
     }
 
     /**
+     * Copied from ListFragment and added EditText for search on top of list.
+     * We do not use a custom layout here, because this breaks the progress bar functionality
+     * of ListFragment.
+     *
+     * @param inflater
+     * @param container
+     * @param savedInstanceState
+     * @return
+     */
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        final Context context = getActivity();
+
+        FrameLayout root = new FrameLayout(context);
+
+        // ------------------------------------------------------------------
+
+        LinearLayout pframe = new LinearLayout(context);
+        pframe.setId(INTERNAL_PROGRESS_CONTAINER_ID);
+        pframe.setOrientation(LinearLayout.VERTICAL);
+        pframe.setVisibility(View.GONE);
+        pframe.setGravity(Gravity.CENTER);
+
+        ProgressBar progress = new ProgressBar(context, null,
+                android.R.attr.progressBarStyleLarge);
+        pframe.addView(progress, new FrameLayout.LayoutParams(
+                ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
+
+        root.addView(pframe, new FrameLayout.LayoutParams(
+                ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT));
+
+        // ------------------------------------------------------------------
+
+        FrameLayout lframe = new FrameLayout(context);
+        lframe.setId(INTERNAL_LIST_CONTAINER_ID);
+
+        TextView tv = new TextView(getActivity());
+        tv.setId(INTERNAL_EMPTY_ID);
+        tv.setGravity(Gravity.CENTER);
+        lframe.addView(tv, new FrameLayout.LayoutParams(
+                ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT));
+
+        // Added for search view: linearLayout, mSearchView
+        LinearLayout linearLayout = new LinearLayout(context);
+        linearLayout.setOrientation(LinearLayout.VERTICAL);
+
+        mSearchView = new EditText(context);
+        mSearchView.setId(SEARCH_ID);
+        mSearchView.setHint(R.string.menu_search);
+        mSearchView.setCompoundDrawablesWithIntrinsicBounds(
+                getResources().getDrawable(R.drawable.ic_action_search), null, null, null);
+
+        linearLayout.addView(mSearchView, new FrameLayout.LayoutParams(
+                ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));
+
+        ListView lv = new ListView(getActivity());
+        lv.setId(android.R.id.list);
+        lv.setDrawSelectorOnTop(false);
+        linearLayout.addView(lv, new FrameLayout.LayoutParams(
+                ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT));
+
+        lframe.addView(linearLayout, new FrameLayout.LayoutParams(
+                ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT));
+
+        root.addView(lframe, new FrameLayout.LayoutParams(
+                ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT));
+
+        // ------------------------------------------------------------------
+
+        root.setLayoutParams(new FrameLayout.LayoutParams(
+                ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT));
+
+        return root;
+    }
+
+    /**
      * Define Adapter and Loader on create of Activity
      */
     @Override
     public void onActivityCreated(Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
 
-        mActivity = getActivity();
-        mListView = getListView();
+        getListView().setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
 
-        mListView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
         // Give some text to display if there is no data. In a real
         // application this would come from a resource.
         setEmptyText(getString(R.string.list_empty));
 
-        mAdapter = new SelectKeyCursorAdapter(mActivity, null, 0, mListView, Id.type.public_key);
+        mSearchView.addTextChangedListener(this);
+
+        mAdapter = new SelectKeyCursorAdapter(getActivity(), null, 0, getListView(), Id.type.public_key);
 
         setListAdapter(mAdapter);
 
@@ -106,16 +187,16 @@ public class SelectPublicKeyFragment extends ListFragmentWorkaround implements T
 
     /**
      * Selects items based on master key ids in list view
-     * 
+     *
      * @param masterKeyIds
      */
     private void preselectMasterKeyIds(long[] masterKeyIds) {
         if (masterKeyIds != null) {
-            for (int i = 0; i < mListView.getCount(); ++i) {
+            for (int i = 0; i < getListView().getCount(); ++i) {
                 long keyId = mAdapter.getMasterKeyId(i);
-                for (int j = 0; j < masterKeyIds.length; ++j) {
-                    if (keyId == masterKeyIds[j]) {
-                        mListView.setItemChecked(i, true);
+                for (long masterKeyId : masterKeyIds) {
+                    if (keyId == masterKeyId) {
+                        getListView().setItemChecked(i, true);
                         break;
                     }
                 }
@@ -125,15 +206,15 @@ public class SelectPublicKeyFragment extends ListFragmentWorkaround implements T
 
     /**
      * Returns all selected master key ids
-     * 
+     *
      * @return
      */
     public long[] getSelectedMasterKeyIds() {
         // mListView.getCheckedItemIds() would give the row ids of the KeyRings not the master key
         // ids!
         Vector<Long> vector = new Vector<Long>();
-        for (int i = 0; i < mListView.getCount(); ++i) {
-            if (mListView.isItemChecked(i)) {
+        for (int i = 0; i < getListView().getCount(); ++i) {
+            if (getListView().isItemChecked(i)) {
                 vector.add(mAdapter.getMasterKeyId(i));
             }
         }
@@ -149,13 +230,13 @@ public class SelectPublicKeyFragment extends ListFragmentWorkaround implements T
 
     /**
      * Returns all selected user ids
-     * 
+     *
      * @return
      */
     public String[] getSelectedUserIds() {
         Vector<String> userIds = new Vector<String>();
-        for (int i = 0; i < mListView.getCount(); ++i) {
-            if (mListView.isItemChecked(i)) {
+        for (int i = 0; i < getListView().getCount(); ++i) {
+            if (getListView().isItemChecked(i)) {
                 userIds.add((String) mAdapter.getUserId(i));
             }
         }
@@ -173,7 +254,7 @@ public class SelectPublicKeyFragment extends ListFragmentWorkaround implements T
 
         // These are the rows that we will retrieve.
         long now = new Date().getTime() / 1000;
-        String[] projection = new String[] {
+        String[] projection = new String[]{
                 KeyRings._ID,
                 KeyRings.MASTER_KEY_ID,
                 UserIds.USER_ID,
@@ -204,22 +285,6 @@ public class SelectPublicKeyFragment extends ListFragmentWorkaround implements T
             inMasterKeyList += ")";
         }
 
-        // if (searchString != null && searchString.trim().length() > 0) {
-        // String[] chunks = searchString.trim().split(" +");
-        // qb.appendWhere("(EXISTS (SELECT tmp." + UserIds._ID + " FROM " + UserIds.TABLE_NAME
-        // + " AS tmp WHERE " + "tmp." + UserIds.KEY_ID + " = " + Keys.TABLE_NAME + "."
-        // + Keys._ID);
-        // for (int i = 0; i < chunks.length; ++i) {
-        // qb.appendWhere(" AND tmp." + UserIds.USER_ID + " LIKE ");
-        // qb.appendWhereEscapeString("%" + chunks[i] + "%");
-        // }
-        // qb.appendWhere("))");
-        //
-        // if (inIdList != null) {
-        // qb.appendWhere(" OR (" + inIdList + ")");
-        // }
-        // }
-
         String orderBy = UserIds.USER_ID + " ASC";
         if (inMasterKeyList != null) {
             // sort by selected master keys
@@ -227,9 +292,9 @@ public class SelectPublicKeyFragment extends ListFragmentWorkaround implements T
         }
         String where = null;
         String whereArgs[] = null;
-        if(mCurQuery != null){
+        if (mCurQuery != null) {
             where = UserIds.USER_ID + " LIKE ?";
-            whereArgs = new String[]{mCurQuery+"%"};
+            whereArgs = new String[]{"%" + mCurQuery + "%"};
         }
 
         // Now create and return a CursorLoader that will take care of
@@ -241,6 +306,7 @@ public class SelectPublicKeyFragment extends ListFragmentWorkaround implements T
     public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
         // Swap the new cursor in. (The framework will take care of closing the
         // old cursor once we return.)
+        mAdapter.setSearchQuery(mCurQuery);
         mAdapter.swapCursor(data);
 
         // The list should now be shown.
@@ -274,8 +340,7 @@ public class SelectPublicKeyFragment extends ListFragmentWorkaround implements T
 
     @Override
     public void afterTextChanged(Editable editable) {
-        String newQuery = !TextUtils.isEmpty(editable.toString()) ? editable.toString() : null;
-        mCurQuery = newQuery;
+        mCurQuery = !TextUtils.isEmpty(editable.toString()) ? editable.toString() : null;
         getLoaderManager().restartLoader(0, null, this);
     }
 }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectSecretKeyActivity.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectSecretKeyActivity.java
index cd3b2cf78..0ff88d97c 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectSecretKeyActivity.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectSecretKeyActivity.java
@@ -1,43 +1,37 @@
 /*
- * Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
- * Copyright (C) 2010 Thialfihar <thi@thialfihar.org>
+ * Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 package org.sufficientlysecure.keychain.ui;
 
-import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.R;
-
 import android.content.Intent;
+import android.net.Uri;
 import android.os.Bundle;
 import android.support.v7.app.ActionBar;
 import android.support.v7.app.ActionBarActivity;
-import android.view.Menu;
 
-public class SelectSecretKeyActivity extends ActionBarActivity {
+import org.sufficientlysecure.keychain.R;
 
-    // Actions for internal use only:
-    public static final String ACTION_SELECT_SECRET_KEY = Constants.INTENT_PREFIX
-            + "SELECT_SECRET_KEYRING";
+public class SelectSecretKeyActivity extends ActionBarActivity {
 
     public static final String EXTRA_FILTER_CERTIFY = "filter_certify";
 
     public static final String RESULT_EXTRA_MASTER_KEY_ID = "master_key_id";
-    public static final String RESULT_EXTRA_USER_ID = "user_id";
 
-    private boolean mFilterCertify = false;
+    private boolean mFilterCertify;
     private SelectSecretKeyFragment mSelectFragment;
 
     @Override
@@ -51,23 +45,8 @@ public class SelectSecretKeyActivity extends ActionBarActivity {
         actionBar.setDisplayHomeAsUpEnabled(false);
         actionBar.setHomeButtonEnabled(false);
 
-        setDefaultKeyMode(DEFAULT_KEYS_SEARCH_LOCAL);
-
-        // TODO: reimplement!
-        // mFilterLayout = findViewById(R.id.layout_filter);
-        // mFilterInfo = (TextView) mFilterLayout.findViewById(R.id.filterInfo);
-        // mClearFilterButton = (Button) mFilterLayout.findViewById(R.id.btn_clear);
-        //
-        // mClearFilterButton.setOnClickListener(new OnClickListener() {
-        // public void onClick(View v) {
-        // handleIntent(new Intent());
-        // }
-        // });
-
         mFilterCertify = getIntent().getBooleanExtra(EXTRA_FILTER_CERTIFY, false);
 
-        handleIntent(getIntent());
-
         // Check that the activity is using the layout version with
         // the fragment_container FrameLayout
         if (findViewById(R.id.select_secret_key_fragment_container) != null) {
@@ -90,49 +69,15 @@ public class SelectSecretKeyActivity extends ActionBarActivity {
 
     /**
      * This is executed by SelectSecretKeyFragment after clicking on an item
-     * 
-     * @param masterKeyId
-     * @param userId
+     *
+     * @param selectedUri
      */
-    public void afterListSelection(long masterKeyId, String userId) {
+    public void afterListSelection(Uri selectedUri) {
         Intent data = new Intent();
-        data.putExtra(RESULT_EXTRA_MASTER_KEY_ID, masterKeyId);
-        data.putExtra(RESULT_EXTRA_USER_ID, (String) userId);
+        data.setData(selectedUri);
+
         setResult(RESULT_OK, data);
         finish();
     }
 
-    @Override
-    protected void onNewIntent(Intent intent) {
-        super.onNewIntent(intent);
-        handleIntent(intent);
-    }
-
-    private void handleIntent(Intent intent) {
-        // TODO: reimplement!
-
-        // String searchString = null;
-        // if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
-        // searchString = intent.getStringExtra(SearchManager.QUERY);
-        // if (searchString != null && searchString.trim().length() == 0) {
-        // searchString = null;
-        // }
-        // }
-
-        // if (searchString == null) {
-        // mFilterLayout.setVisibility(View.GONE);
-        // } else {
-        // mFilterLayout.setVisibility(View.VISIBLE);
-        // mFilterInfo.setText(getString(R.string.filterInfo, searchString));
-        // }
-    }
-
-    @Override
-    public boolean onCreateOptionsMenu(Menu menu) {
-        // TODO: reimplement!
-        // menu.add(0, Id.menu.option.search, 0, R.string.menu_search).setIcon(
-        // android.R.drawable.ic_menu_search);
-        return true;
-    }
-
 }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectSecretKeyFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectSecretKeyFragment.java
index 8ee2d381e..2efa7d33a 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectSecretKeyFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectSecretKeyFragment.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2012-2013 Dominik Schürmann <dominik@dominikschuermann.de>
+ * Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
  * Copyright (C) 2010 Thialfihar <thi@thialfihar.org>
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -17,17 +17,6 @@
 
 package org.sufficientlysecure.keychain.ui;
 
-import java.util.Date;
-
-import org.sufficientlysecure.keychain.Id;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
-import org.sufficientlysecure.keychain.provider.KeychainContract.Keys;
-import org.sufficientlysecure.keychain.provider.KeychainContract.UserIds;
-import org.sufficientlysecure.keychain.provider.KeychainDatabase;
-import org.sufficientlysecure.keychain.provider.KeychainDatabase.Tables;
-import org.sufficientlysecure.keychain.ui.adapter.SelectKeyCursorAdapter;
-
 import android.database.Cursor;
 import android.net.Uri;
 import android.os.Bundle;
@@ -40,15 +29,26 @@ import android.widget.AdapterView;
 import android.widget.AdapterView.OnItemClickListener;
 import android.widget.ListView;
 
+import org.sufficientlysecure.keychain.Id;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
+import org.sufficientlysecure.keychain.provider.KeychainContract.Keys;
+import org.sufficientlysecure.keychain.provider.KeychainContract.UserIds;
+import org.sufficientlysecure.keychain.provider.KeychainDatabase;
+import org.sufficientlysecure.keychain.provider.KeychainDatabase.Tables;
+import org.sufficientlysecure.keychain.ui.adapter.SelectKeyCursorAdapter;
+
+import java.util.Date;
+
 public class SelectSecretKeyFragment extends ListFragment implements
         LoaderManager.LoaderCallbacks<Cursor> {
 
     private SelectSecretKeyActivity mActivity;
     private SelectKeyCursorAdapter mAdapter;
     private ListView mListView;
-    
+
     private boolean mFilterCertify;
-    
+
     private static final String ARG_FILTER_CERTIFY = "filter_certify";
 
     /**
@@ -56,10 +56,9 @@ public class SelectSecretKeyFragment extends ListFragment implements
      */
     public static SelectSecretKeyFragment newInstance(boolean filterCertify) {
         SelectSecretKeyFragment frag = new SelectSecretKeyFragment();
-        Bundle args = new Bundle();
 
+        Bundle args = new Bundle();
         args.putBoolean(ARG_FILTER_CERTIFY, filterCertify);
-
         frag.setArguments(args);
 
         return frag;
@@ -86,10 +85,10 @@ public class SelectSecretKeyFragment extends ListFragment implements
             @Override
             public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
                 long masterKeyId = mAdapter.getMasterKeyId(position);
-                String userId = mAdapter.getUserId(position);
+                Uri result = KeyRings.buildSecretKeyRingsByMasterKeyIdUri(String.valueOf(masterKeyId));
 
                 // return data to activity, which results in finishing it
-                mActivity.afterListSelection(masterKeyId, userId);
+                mActivity.afterListSelection(result);
             }
         });
 
@@ -122,7 +121,7 @@ public class SelectSecretKeyFragment extends ListFragment implements
 
         // These are the rows that we will retrieve.
         long now = new Date().getTime() / 1000;
-        String[] projection = new String[] {
+        String[] projection = new String[]{
                 KeyRings._ID,
                 KeyRings.MASTER_KEY_ID,
                 UserIds.USER_ID,
@@ -142,7 +141,7 @@ public class SelectSecretKeyFragment extends ListFragment implements
                         + Keys.IS_REVOKED + " = '0' AND valid_keys." + Keys.CAN_SIGN
                         + " = '1' AND valid_keys." + Keys.CREATION + " <= '" + now + "' AND "
                         + "(valid_keys." + Keys.EXPIRY + " IS NULL OR valid_keys." + Keys.EXPIRY
-                        + " >= '" + now + "')) AS " + SelectKeyCursorAdapter.PROJECTION_ROW_VALID, };
+                        + " >= '" + now + "')) AS " + SelectKeyCursorAdapter.PROJECTION_ROW_VALID,};
 
         String orderBy = UserIds.USER_ID + " ASC";
 
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectSecretKeyLayoutFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectSecretKeyLayoutFragment.java
index 6bcb84f46..cbc0f4c5c 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectSecretKeyLayoutFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectSecretKeyLayoutFragment.java
@@ -17,17 +17,15 @@
 
 package org.sufficientlysecure.keychain.ui;
 
-import org.spongycastle.openpgp.PGPSecretKey;
-import org.spongycastle.openpgp.PGPSecretKeyRing;
-import org.sufficientlysecure.keychain.Id;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
-
 import android.app.Activity;
 import android.content.Intent;
+import android.database.Cursor;
+import android.net.Uri;
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
+import android.support.v4.app.LoaderManager;
+import android.support.v4.content.CursorLoader;
+import android.support.v4.content.Loader;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.View.OnClickListener;
@@ -36,17 +34,34 @@ import android.widget.TextView;
 
 import com.beardedhen.androidbootstrap.BootstrapButton;
 
-public class SelectSecretKeyLayoutFragment extends Fragment {
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
+import org.sufficientlysecure.keychain.provider.KeychainContract;
+
+public class SelectSecretKeyLayoutFragment extends Fragment implements LoaderManager.LoaderCallbacks<Cursor> {
 
     private TextView mKeyUserId;
     private TextView mKeyUserIdRest;
+    private TextView mKeyMasterKeyIdHex;
+    private TextView mNoKeySelected;
     private BootstrapButton mSelectKeyButton;
     private Boolean mFilterCertify;
 
+    private Uri mReceivedUri = null;
+
     private SelectSecretKeyCallback mCallback;
 
     private static final int REQUEST_CODE_SELECT_KEY = 8882;
 
+    private static final int LOADER_ID = 0;
+
+    //The Projection we will retrieve, Master Key ID is for convenience sake,
+    //to avoid having to pass the Key Around
+    final String[] PROJECTION = new String[]{KeychainContract.UserIds.USER_ID
+            , KeychainContract.KeyRings.MASTER_KEY_ID};
+    final int INDEX_USER_ID = 0;
+    final int INDEX_MASTER_KEY_ID = 1;
+
     public interface SelectSecretKeyCallback {
         void onKeySelected(long secretKeyId);
     }
@@ -59,34 +74,30 @@ public class SelectSecretKeyLayoutFragment extends Fragment {
         mFilterCertify = filterCertify;
     }
 
-    public void selectKey(long secretKeyId) {
-        if (secretKeyId == Id.key.none) {
-            mKeyUserId.setText(R.string.api_settings_no_key);
-            mKeyUserIdRest.setText("");
-        } else {
-            String uid = getResources().getString(R.string.user_id_no_name);
-            String uidExtra = "";
-            PGPSecretKeyRing keyRing = ProviderHelper.getPGPSecretKeyRingByMasterKeyId(
-                    getActivity(), secretKeyId);
-            if (keyRing != null) {
-                PGPSecretKey key = PgpKeyHelper.getMasterKey(keyRing);
-                if (key != null) {
-                    String userId = PgpKeyHelper.getMainUserIdSafe(getActivity(), key);
-                    String chunks[] = userId.split(" <", 2);
-                    uid = chunks[0];
-                    if (chunks.length > 1) {
-                        uidExtra = "<" + chunks[1];
-                    }
-                }
-            }
-            mKeyUserId.setText(uid);
-            mKeyUserIdRest.setText(uidExtra);
-        }
+    public void setNoKeySelected() {
+        mNoKeySelected.setVisibility(View.VISIBLE);
+        mKeyUserId.setVisibility(View.GONE);
+        mKeyUserIdRest.setVisibility(View.GONE);
+        mKeyMasterKeyIdHex.setVisibility(View.GONE);
+    }
+
+    public void setSelectedKeyData(String userName, String email, String masterKeyHex) {
+
+        mNoKeySelected.setVisibility(View.GONE);
+
+        mKeyUserId.setText(userName);
+        mKeyUserIdRest.setText(email);
+        mKeyMasterKeyIdHex.setText(masterKeyHex);
+
+        mKeyUserId.setVisibility(View.VISIBLE);
+        mKeyUserIdRest.setVisibility(View.VISIBLE);
+        mKeyMasterKeyIdHex.setVisibility(View.VISIBLE);
+
     }
 
     public void setError(String error) {
-        mKeyUserId.requestFocus();
-        mKeyUserId.setError(error);
+        mNoKeySelected.requestFocus();
+        mNoKeySelected.setError(error);
     }
 
     /**
@@ -96,8 +107,10 @@ public class SelectSecretKeyLayoutFragment extends Fragment {
     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
         View view = inflater.inflate(R.layout.select_secret_key_layout_fragment, container, false);
 
+        mNoKeySelected = (TextView) view.findViewById(R.id.no_key_selected);
         mKeyUserId = (TextView) view.findViewById(R.id.select_secret_key_user_id);
         mKeyUserIdRest = (TextView) view.findViewById(R.id.select_secret_key_user_id_rest);
+        mKeyMasterKeyIdHex = (TextView) view.findViewById(R.id.select_secret_key_master_key_hex);
         mSelectKeyButton = (BootstrapButton) view
                 .findViewById(R.id.select_secret_key_select_key_button);
         mFilterCertify = false;
@@ -111,6 +124,13 @@ public class SelectSecretKeyLayoutFragment extends Fragment {
         return view;
     }
 
+    //For AppSettingsFragment
+    public void selectKey(long masterKeyId) {
+        Uri buildUri = KeychainContract.KeyRings.buildSecretKeyRingsByMasterKeyIdUri(String.valueOf(masterKeyId));
+        mReceivedUri = buildUri;
+        getActivity().getSupportLoaderManager().restartLoader(LOADER_ID, null, this);
+    }
+
     private void startSelectKeyActivity() {
         Intent intent = new Intent(getActivity(), SelectSecretKeyActivity.class);
         intent.putExtra(SelectSecretKeyActivity.EXTRA_FILTER_CERTIFY, mFilterCertify);
@@ -118,29 +138,74 @@ public class SelectSecretKeyLayoutFragment extends Fragment {
     }
 
     @Override
+    public Loader<Cursor> onCreateLoader(int id, Bundle args) {
+        //We don't care about the Loader id
+        return new CursorLoader(getActivity(), mReceivedUri, PROJECTION, null, null, null);
+    }
+
+    @Override
+    public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
+        if (data.moveToFirst()) {
+            String userName, email, masterKeyHex;
+            String userID = data.getString(INDEX_USER_ID);
+            long masterKeyID = data.getLong(INDEX_MASTER_KEY_ID);
+
+            String splitUserID[] = PgpKeyHelper.splitUserId(userID);
+
+            if (splitUserID[0] != null) {
+                userName = splitUserID[0];
+            } else {
+                userName = getActivity().getResources().getString(R.string.user_id_no_name);
+            }
+
+            if (splitUserID[1] != null) {
+                email = splitUserID[1];
+            } else {
+                email = getActivity().getResources().getString(R.string.error_user_id_no_email);
+            }
+
+            //TODO Can the cursor return invalid values for the Master Key ?
+            masterKeyHex = PgpKeyHelper.convertKeyIdToHexShort(masterKeyID);
+
+            //Set the data
+            setSelectedKeyData(userName, email, masterKeyHex);
+
+            //Give value to the callback
+            mCallback.onKeySelected(masterKeyID);
+        } else {
+            //Set The empty View
+            setNoKeySelected();
+        }
+
+    }
+
+    @Override
+    public void onLoaderReset(Loader<Cursor> loader) {
+        return;
+    }
+
+    // Select Secret Key Activity delivers the intent which was sent by it using interface to Select
+    // Secret Key Fragment.Intent contains the passed Uri
+    @Override
     public void onActivityResult(int requestCode, int resultCode, Intent data) {
         switch (requestCode & 0xFFFF) {
-        case REQUEST_CODE_SELECT_KEY: {
-            long secretKeyId;
-            if (resultCode == Activity.RESULT_OK) {
-                Bundle bundle = data.getExtras();
-                secretKeyId = bundle.getLong(SelectSecretKeyActivity.RESULT_EXTRA_MASTER_KEY_ID);
+            case REQUEST_CODE_SELECT_KEY: {
+                if (resultCode == Activity.RESULT_OK) {
+                    mReceivedUri = data.getData();
 
-                selectKey(secretKeyId);
+                    //Must be restartLoader() or the data will not be updated on selecting a new key
+                    getActivity().getSupportLoaderManager().restartLoader(LOADER_ID, null, this);
 
-                // remove displayed errors
-                mKeyUserId.setError(null);
+                    mKeyUserId.setError(null);
 
-                // give value back to callback
-                mCallback.onKeySelected(secretKeyId);
+                }
+                break;
             }
-            break;
-        }
 
-        default:
-            super.onActivityResult(requestCode, resultCode, data);
+            default:
+                super.onActivityResult(requestCode, resultCode, data);
 
-            break;
+                break;
         }
     }
 }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/UploadKeyActivity.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/UploadKeyActivity.java
index 550d3047d..0e231e6a8 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/UploadKeyActivity.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/UploadKeyActivity.java
@@ -17,13 +17,6 @@
 
 package org.sufficientlysecure.keychain.ui;
 
-import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.helper.Preferences;
-import org.sufficientlysecure.keychain.service.KeychainIntentService;
-import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
-import org.sufficientlysecure.keychain.util.Log;
-
 import android.app.ProgressDialog;
 import android.content.Intent;
 import android.net.Uri;
@@ -36,8 +29,13 @@ import android.view.View.OnClickListener;
 import android.widget.ArrayAdapter;
 import android.widget.Spinner;
 import android.widget.Toast;
-
 import com.beardedhen.androidbootstrap.BootstrapButton;
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.helper.Preferences;
+import org.sufficientlysecure.keychain.service.KeychainIntentService;
+import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
+import org.sufficientlysecure.keychain.util.Log;
 
 /**
  * Sends the selected public key to a keyserver
@@ -59,7 +57,7 @@ public class UploadKeyActivity extends ActionBarActivity {
 
         ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
                 android.R.layout.simple_spinner_item, Preferences.getPreferences(this)
-                        .getKeyServers());
+                .getKeyServers());
         adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
         mKeyServerSpinner.setAdapter(adapter);
         if (adapter.getCount() > 0) {
@@ -100,11 +98,11 @@ public class UploadKeyActivity extends ActionBarActivity {
 
         intent.putExtra(KeychainIntentService.EXTRA_DATA, data);
 
-        // Message is received after uploading is done in ApgService
+        // Message is received after uploading is done in KeychainIntentService
         KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(this,
-                R.string.progress_exporting, ProgressDialog.STYLE_HORIZONTAL) {
+                getString(R.string.progress_exporting), ProgressDialog.STYLE_HORIZONTAL) {
             public void handleMessage(Message message) {
-                // handle messages by standard ApgHandler first
+                // handle messages by standard KeychainIntentServiceHandler first
                 super.handleMessage(message);
 
                 if (message.arg1 == KeychainIntentServiceHandler.MESSAGE_OKAY) {
@@ -113,7 +111,7 @@ public class UploadKeyActivity extends ActionBarActivity {
                             Toast.LENGTH_SHORT).show();
                     finish();
                 }
-            };
+            }
         };
 
         // Create a new Messenger for the communication back
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyActivity.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyActivity.java
index 0a452bc8a..3e7e6d7ce 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyActivity.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyActivity.java
@@ -29,13 +29,13 @@ import android.support.v7.app.ActionBarActivity;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.widget.Toast;
-
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.Id;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.compatibility.ClipboardReflection;
 import org.sufficientlysecure.keychain.helper.ExportHelper;
 import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
+import org.sufficientlysecure.keychain.provider.KeychainContract;
 import org.sufficientlysecure.keychain.provider.ProviderHelper;
 import org.sufficientlysecure.keychain.ui.adapter.TabsAdapter;
 import org.sufficientlysecure.keychain.ui.dialog.DeleteKeyDialogFragment;
@@ -83,17 +83,23 @@ public class ViewKeyActivity extends ActionBarActivity {
             selectedTab = intent.getExtras().getInt(EXTRA_SELECTED_TAB);
         }
 
-        mDataUri = getIntent().getData();
+        {
+            // normalize mDataUri to a "by row id" query, to ensure it works with any
+            // given valid /public/ query
+            long rowId = ProviderHelper.getRowId(this, getIntent().getData());
+            // TODO: handle (rowId == 0) with something else than a crash
+            mDataUri = KeychainContract.KeyRings.buildPublicKeyRingsUri(Long.toString(rowId));
+        }
 
         Bundle mainBundle = new Bundle();
         mainBundle.putParcelable(ViewKeyMainFragment.ARG_DATA_URI, mDataUri);
         mTabsAdapter.addTab(actionBar.newTab().setText(getString(R.string.key_view_tab_main)),
-                ViewKeyMainFragment.class, mainBundle, (selectedTab == 0 ? true : false));
+                ViewKeyMainFragment.class, mainBundle, (selectedTab == 0));
 
         Bundle certBundle = new Bundle();
         certBundle.putParcelable(ViewKeyCertsFragment.ARG_DATA_URI, mDataUri);
         mTabsAdapter.addTab(actionBar.newTab().setText(getString(R.string.key_view_tab_certs)),
-                ViewKeyCertsFragment.class, certBundle, (selectedTab == 1 ? true : false));
+                ViewKeyCertsFragment.class, certBundle, (selectedTab == 1));
     }
 
     @Override
@@ -107,7 +113,7 @@ public class ViewKeyActivity extends ActionBarActivity {
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {
             case android.R.id.home:
-                Intent homeIntent = new Intent(this, KeyListPublicActivity.class);
+                Intent homeIntent = new Intent(this, KeyListActivity.class);
                 homeIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                 startActivity(homeIntent);
                 return true;
@@ -118,8 +124,11 @@ public class ViewKeyActivity extends ActionBarActivity {
                 uploadToKeyserver(mDataUri);
                 return true;
             case R.id.menu_key_view_export_file:
-                mExportHelper.showExportKeysDialog(mDataUri, Id.type.public_key, Constants.path.APP_DIR
-                        + "/pubexport.asc");
+                long masterKeyId =
+                        ProviderHelper.getPublicMasterKeyId(this, Long.valueOf(mDataUri.getLastPathSegment()));
+                long[] ids = new long[]{masterKeyId};
+                mExportHelper.showExportKeysDialog(ids, Id.type.public_key,
+                        Constants.Path.APP_DIR_FILE_PUB, null);
                 return true;
             case R.id.menu_key_view_share_default_fingerprint:
                 shareKey(mDataUri, true);
@@ -154,7 +163,7 @@ public class ViewKeyActivity extends ActionBarActivity {
     }
 
     private void updateFromKeyserver(Uri dataUri) {
-        long updateKeyId = ProviderHelper.getMasterKeyId(ViewKeyActivity.this, mDataUri);
+        long updateKeyId = ProviderHelper.getMasterKeyId(ViewKeyActivity.this, dataUri);
 
         if (updateKeyId == 0) {
             Log.e(Constants.TAG, "this shouldn't happen. KeyId == 0!");
@@ -173,7 +182,7 @@ public class ViewKeyActivity extends ActionBarActivity {
         String content;
         if (fingerprintOnly) {
             byte[] fingerprintBlob = ProviderHelper.getFingerprint(this, dataUri);
-            String fingerprint = PgpKeyHelper.convertFingerprintToHex(fingerprintBlob, false);
+            String fingerprint = PgpKeyHelper.convertFingerprintToHex(fingerprintBlob);
 
             content = Constants.FINGERPRINT_SCHEME + ":" + fingerprint;
         } else {
@@ -228,24 +237,12 @@ public class ViewKeyActivity extends ActionBarActivity {
         Handler returnHandler = new Handler() {
             @Override
             public void handleMessage(Message message) {
-                if (message.what == DeleteKeyDialogFragment.MESSAGE_OKAY) {
-                    Bundle returnData = message.getData();
-                    if (returnData != null
-                            && returnData.containsKey(DeleteKeyDialogFragment.MESSAGE_NOT_DELETED)) {
-                        // we delete only this key, so MESSAGE_NOT_DELETED will solely contain this key
-                        Toast.makeText(ViewKeyActivity.this,
-                                getString(R.string.error_can_not_delete_contact)
-                                        + getResources().getQuantityString(R.plurals.error_can_not_delete_info, 1),
-                                Toast.LENGTH_LONG).show();
-                    } else {
-                        setResult(RESULT_CANCELED);
-                        finish();
-                    }
-                }
+                setResult(RESULT_CANCELED);
+                finish();
             }
         };
 
-        mExportHelper.deleteKey(dataUri, Id.type.public_key, returnHandler);
+        mExportHelper.deleteKey(dataUri, returnHandler);
     }
 
 }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyActivityJB.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyActivityJB.java
index 59037d9ff..997ff9c7a 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyActivityJB.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyActivityJB.java
@@ -18,10 +18,6 @@
 
 package org.sufficientlysecure.keychain.ui;
 
-import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
-
 import android.annotation.TargetApi;
 import android.net.Uri;
 import android.nfc.NdefMessage;
@@ -35,6 +31,9 @@ import android.os.Bundle;
 import android.os.Handler;
 import android.os.Message;
 import android.widget.Toast;
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.provider.ProviderHelper;
 
 @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
 public class ViewKeyActivityJB extends ViewKeyActivity implements CreateNdefMessageCallback,
@@ -66,7 +65,7 @@ public class ViewKeyActivityJB extends ViewKeyActivity implements CreateNdefMess
                 // get public keyring as byte array
                 long masterKeyId = ProviderHelper.getMasterKeyId(this, dataUri);
                 mSharedKeyringBytes = ProviderHelper.getKeyRingsAsByteArray(this, dataUri,
-                        new long[] { masterKeyId });
+                        new long[]{masterKeyId});
 
                 // Register callback to set NDEF message
                 mNfcAdapter.setNdefPushMessageCallback(this, this);
@@ -109,10 +108,10 @@ public class ViewKeyActivityJB extends ViewKeyActivity implements CreateNdefMess
         @Override
         public void handleMessage(Message msg) {
             switch (msg.what) {
-            case NFC_SENT:
-                Toast.makeText(getApplicationContext(), R.string.nfc_successfull, Toast.LENGTH_LONG)
-                        .show();
-                break;
+                case NFC_SENT:
+                    Toast.makeText(getApplicationContext(), R.string.nfc_successfull, Toast.LENGTH_LONG)
+                            .show();
+                    break;
             }
         }
     };
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyCertsFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyCertsFragment.java
index 36d3e6ace..02c04c11d 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyCertsFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyCertsFragment.java
@@ -24,9 +24,7 @@ import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-
 import com.beardedhen.androidbootstrap.BootstrapButton;
-
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.util.Log;
@@ -89,4 +87,4 @@ public class ViewKeyCertsFragment extends Fragment {
         startActivity(signIntent);
     }
 
-}
\ No newline at end of file
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyMainFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyMainFragment.java
index 495764eaf..691be5fa9 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyMainFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyMainFragment.java
@@ -19,6 +19,7 @@ package org.sufficientlysecure.keychain.ui;
 
 import android.content.Intent;
 import android.database.Cursor;
+import android.graphics.Color;
 import android.net.Uri;
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
@@ -36,6 +37,7 @@ import com.beardedhen.androidbootstrap.BootstrapButton;
 
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.helper.OtherHelper;
 import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
 import org.sufficientlysecure.keychain.provider.KeychainContract;
 import org.sufficientlysecure.keychain.provider.ProviderHelper;
@@ -46,8 +48,8 @@ import org.sufficientlysecure.keychain.util.Log;
 import java.util.Date;
 
 
-public class ViewKeyMainFragment extends Fragment  implements
-        LoaderManager.LoaderCallbacks<Cursor>{
+public class ViewKeyMainFragment extends Fragment implements
+        LoaderManager.LoaderCallbacks<Cursor> {
 
     public static final String ARG_DATA_URI = "uri";
 
@@ -59,7 +61,10 @@ public class ViewKeyMainFragment extends Fragment  implements
     private TextView mExpiry;
     private TextView mCreation;
     private TextView mFingerprint;
+    private TextView mSecretKey;
+    private BootstrapButton mActionEdit;
     private BootstrapButton mActionEncrypt;
+    private BootstrapButton mActionCertify;
 
     private ListView mUserIds;
     private ListView mKeys;
@@ -85,9 +90,12 @@ public class ViewKeyMainFragment extends Fragment  implements
         mCreation = (TextView) view.findViewById(R.id.creation);
         mExpiry = (TextView) view.findViewById(R.id.expiry);
         mFingerprint = (TextView) view.findViewById(R.id.fingerprint);
+        mSecretKey = (TextView) view.findViewById(R.id.secret_key);
         mUserIds = (ListView) view.findViewById(R.id.user_ids);
         mKeys = (ListView) view.findViewById(R.id.keys);
+        mActionEdit = (BootstrapButton) view.findViewById(R.id.action_edit);
         mActionEncrypt = (BootstrapButton) view.findViewById(R.id.action_encrypt);
+        mActionCertify = (BootstrapButton) view.findViewById(R.id.action_certify);
 
         return view;
     }
@@ -116,6 +124,53 @@ public class ViewKeyMainFragment extends Fragment  implements
 
         Log.i(Constants.TAG, "mDataUri: " + mDataUri.toString());
 
+        { // label whether secret key is available, and edit button if it is
+            final long masterKeyId = ProviderHelper.getMasterKeyId(getActivity(), mDataUri);
+            if (ProviderHelper.hasSecretKeyByMasterKeyId(getActivity(), masterKeyId)) {
+                // set this attribute. this is a LITTLE unclean, but we have the info available
+                // right here, so why not.
+                mSecretKey.setTextColor(getResources().getColor(R.color.emphasis));
+                mSecretKey.setText(R.string.secret_key_yes);
+
+                // certify button
+                // TODO this button MIGHT be useful if the user wants to
+                // certify a private key with another...
+                // mActionCertify.setVisibility(View.GONE);
+
+                // edit button
+                mActionEdit.setVisibility(View.VISIBLE);
+                mActionEdit.setOnClickListener(new View.OnClickListener() {
+                    public void onClick(View view) {
+                        Intent editIntent = new Intent(getActivity(), EditKeyActivity.class);
+                        editIntent.setData(
+                                KeychainContract
+                                        .KeyRings.buildSecretKeyRingsByMasterKeyIdUri(
+                                        Long.toString(masterKeyId)));
+                        editIntent.setAction(EditKeyActivity.ACTION_EDIT_KEY);
+                        startActivityForResult(editIntent, 0);
+                    }
+                });
+            } else {
+                mSecretKey.setTextColor(Color.BLACK);
+                mSecretKey.setText(getResources().getString(R.string.secret_key_no));
+
+                // certify button
+                mActionCertify.setVisibility(View.VISIBLE);
+                // edit button
+                mActionEdit.setVisibility(View.GONE);
+            }
+
+            // TODO see todo note above, doing this here for now
+            mActionCertify.setOnClickListener(new View.OnClickListener() {
+                public void onClick(View view) {
+                    certifyKey(KeychainContract.KeyRings.buildPublicKeyRingsByMasterKeyIdUri(
+                            Long.toString(masterKeyId)
+                    ));
+                }
+            });
+
+        }
+
         mActionEncrypt.setOnClickListener(new View.OnClickListener() {
 
             @Override
@@ -137,21 +192,29 @@ public class ViewKeyMainFragment extends Fragment  implements
         getActivity().getSupportLoaderManager().initLoader(LOADER_ID_KEYS, null, this);
     }
 
-    static final String[] KEYRING_PROJECTION = new String[]{KeychainContract.KeyRings._ID, KeychainContract.KeyRings.MASTER_KEY_ID,
-            KeychainContract.UserIds.USER_ID};
+    static final String[] KEYRING_PROJECTION =
+            new String[]{KeychainContract.KeyRings._ID, KeychainContract.KeyRings.MASTER_KEY_ID,
+                    KeychainContract.UserIds.USER_ID};
     static final int KEYRING_INDEX_ID = 0;
     static final int KEYRING_INDEX_MASTER_KEY_ID = 1;
     static final int KEYRING_INDEX_USER_ID = 2;
 
-    static final String[] USER_IDS_PROJECTION = new String[]{KeychainContract.UserIds._ID, KeychainContract.UserIds.USER_ID,
-            KeychainContract.UserIds.RANK,};
-    // not the main user id
-    static final String USER_IDS_SELECTION = KeychainContract.UserIds.RANK + " > 0 ";
-    static final String USER_IDS_SORT_ORDER = KeychainContract.UserIds.USER_ID + " COLLATE LOCALIZED ASC";
-
-    static final String[] KEYS_PROJECTION = new String[]{KeychainContract.Keys._ID, KeychainContract.Keys.KEY_ID,
-            KeychainContract.Keys.IS_MASTER_KEY, KeychainContract.Keys.ALGORITHM, KeychainContract.Keys.KEY_SIZE, KeychainContract.Keys.CAN_CERTIFY, KeychainContract.Keys.CAN_SIGN,
-            KeychainContract.Keys.CAN_ENCRYPT, KeychainContract.Keys.CREATION, KeychainContract.Keys.EXPIRY, KeychainContract.Keys.FINGERPRINT};
+    static final String[] USER_IDS_PROJECTION =
+            new String[]{
+                    KeychainContract.UserIds._ID,
+                    KeychainContract.UserIds.USER_ID,
+                    KeychainContract.UserIds.RANK,
+            };
+    static final String USER_IDS_SORT_ORDER =
+            KeychainContract.UserIds.RANK + " COLLATE LOCALIZED ASC";
+
+    static final String[] KEYS_PROJECTION =
+            new String[]{KeychainContract.Keys._ID, KeychainContract.Keys.KEY_ID,
+                    KeychainContract.Keys.IS_MASTER_KEY, KeychainContract.Keys.ALGORITHM,
+                    KeychainContract.Keys.KEY_SIZE, KeychainContract.Keys.CAN_CERTIFY,
+                    KeychainContract.Keys.CAN_SIGN, KeychainContract.Keys.CAN_ENCRYPT,
+                    KeychainContract.Keys.IS_REVOKED, KeychainContract.Keys.CREATION,
+                    KeychainContract.Keys.EXPIRY, KeychainContract.Keys.FINGERPRINT};
     static final String KEYS_SORT_ORDER = KeychainContract.Keys.RANK + " ASC";
     static final int KEYS_INDEX_ID = 0;
     static final int KEYS_INDEX_KEY_ID = 1;
@@ -161,9 +224,10 @@ public class ViewKeyMainFragment extends Fragment  implements
     static final int KEYS_INDEX_CAN_CERTIFY = 5;
     static final int KEYS_INDEX_CAN_SIGN = 6;
     static final int KEYS_INDEX_CAN_ENCRYPT = 7;
-    static final int KEYS_INDEX_CREATION = 8;
-    static final int KEYS_INDEX_EXPIRY = 9;
-    static final int KEYS_INDEX_FINGERPRINT = 10;
+    static final int KEYS_INDEX_IS_REVOKED = 8;
+    static final int KEYS_INDEX_CREATION = 9;
+    static final int KEYS_INDEX_EXPIRY = 10;
+    static final int KEYS_INDEX_FINGERPRINT = 11;
 
     public Loader<Cursor> onCreateLoader(int id, Bundle args) {
         switch (id) {
@@ -179,7 +243,7 @@ public class ViewKeyMainFragment extends Fragment  implements
 
                 // Now create and return a CursorLoader that will take care of
                 // creating a Cursor for the data being displayed.
-                return new CursorLoader(getActivity(), baseUri, USER_IDS_PROJECTION, USER_IDS_SELECTION, null,
+                return new CursorLoader(getActivity(), baseUri, USER_IDS_PROJECTION, null, null,
                         USER_IDS_SORT_ORDER);
             }
             case LOADER_ID_KEYS: {
@@ -224,8 +288,7 @@ public class ViewKeyMainFragment extends Fragment  implements
                 if (data.moveToFirst()) {
                     // get key id from MASTER_KEY_ID
                     long keyId = data.getLong(KEYS_INDEX_KEY_ID);
-
-                    String keyIdStr = "0x" + PgpKeyHelper.convertKeyIdToHex(keyId);
+                    String keyIdStr = PgpKeyHelper.convertKeyIdToHex(keyId);
                     mKeyId.setText(keyIdStr);
 
                     // get creation date from CREATION
@@ -234,8 +297,9 @@ public class ViewKeyMainFragment extends Fragment  implements
                     } else {
                         Date creationDate = new Date(data.getLong(KEYS_INDEX_CREATION) * 1000);
 
-                        mCreation.setText(DateFormat.getDateFormat(getActivity().getApplicationContext()).format(
-                                creationDate));
+                        mCreation.setText(
+                                DateFormat.getDateFormat(getActivity().getApplicationContext()).format(
+                                        creationDate));
                     }
 
                     // get expiry date from EXPIRY
@@ -244,8 +308,9 @@ public class ViewKeyMainFragment extends Fragment  implements
                     } else {
                         Date expiryDate = new Date(data.getLong(KEYS_INDEX_EXPIRY) * 1000);
 
-                        mExpiry.setText(DateFormat.getDateFormat(getActivity().getApplicationContext()).format(
-                                expiryDate));
+                        mExpiry.setText(
+                                DateFormat.getDateFormat(getActivity().getApplicationContext()).format(
+                                        expiryDate));
                     }
 
                     String algorithmStr = PgpKeyHelper.getAlgorithmInfo(
@@ -257,10 +322,22 @@ public class ViewKeyMainFragment extends Fragment  implements
                         // FALLBACK for old database entries
                         fingerprintBlob = ProviderHelper.getFingerprint(getActivity(), mDataUri);
                     }
-                    String fingerprint = PgpKeyHelper.convertFingerprintToHex(fingerprintBlob, true);
-                    fingerprint = fingerprint.replace("  ", "\n");
+                    String fingerprint = PgpKeyHelper.convertFingerprintToHex(fingerprintBlob);
+
+                    mFingerprint.setText(PgpKeyHelper.colorizeFingerprint(fingerprint));
+                }
 
-                    mFingerprint.setText(fingerprint);
+                // hide encrypt button if no encryption key is available
+                boolean canEncrypt = false;
+                data.moveToFirst();
+                do {
+                    if (data.getInt(KEYS_INDEX_CAN_ENCRYPT) == 1) {
+                        canEncrypt = true;
+                        break;
+                    }
+                } while (data.moveToNext());
+                if (!canEncrypt) {
+                    mActionEncrypt.setVisibility(View.GONE);
                 }
 
                 mKeysAdapter.swapCursor(data);
@@ -309,5 +386,4 @@ public class ViewKeyMainFragment extends Fragment  implements
         startActivity(signIntent);
     }
 
-
-}
\ No newline at end of file
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/AsyncTaskResultWrapper.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/AsyncTaskResultWrapper.java
index 2ac19c1d9..5f2aec4fe 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/AsyncTaskResultWrapper.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/AsyncTaskResultWrapper.java
@@ -22,24 +22,25 @@ package org.sufficientlysecure.keychain.ui.adapter;
  * You can pass the result and an exception in it if an error occurred.
  * Concept found at:
  * https://stackoverflow.com/questions/19593577/how-to-handle-errors-in-custom-asynctaskloader
+ *
  * @param <T> - Typ of the result which is wrapped
  */
-public class AsyncTaskResultWrapper <T>{
+public class AsyncTaskResultWrapper<T> {
 
-    private final T result;
-    private final Exception error;
+    private final T mResult;
+    private final Exception mError;
 
-    public AsyncTaskResultWrapper(T result, Exception error){
-        this.result = result;
-        this.error = error;
+    public AsyncTaskResultWrapper(T result, Exception error) {
+        this.mResult = result;
+        this.mError = error;
     }
 
     public T getResult() {
-        return result;
+        return mResult;
     }
 
     public Exception getError() {
-        return error;
+        return mError;
     }
 
 }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/HighlightQueryCursorAdapter.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/HighlightQueryCursorAdapter.java
new file mode 100644
index 000000000..a3ed08a4c
--- /dev/null
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/HighlightQueryCursorAdapter.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.sufficientlysecure.keychain.ui.adapter;
+
+import android.content.Context;
+import android.database.Cursor;
+import android.support.v4.widget.CursorAdapter;
+import android.text.Spannable;
+import android.text.style.ForegroundColorSpan;
+import org.sufficientlysecure.keychain.R;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public abstract class HighlightQueryCursorAdapter extends CursorAdapter {
+
+    private String mCurQuery;
+
+    public HighlightQueryCursorAdapter(Context context, Cursor c, int flags) {
+        super(context, c, flags);
+        mCurQuery = null;
+    }
+
+    public void setSearchQuery(String searchQuery) {
+        mCurQuery = searchQuery;
+    }
+
+    public String getSearchQuery() {
+        return mCurQuery;
+    }
+
+    protected Spannable highlightSearchQuery(String text) {
+        Spannable highlight = Spannable.Factory.getInstance().newSpannable(text);
+
+        if (mCurQuery != null) {
+            Pattern pattern = Pattern.compile("(?i)" + mCurQuery);
+            Matcher matcher = pattern.matcher(text);
+            if (matcher.find()) {
+                highlight.setSpan(
+                        new ForegroundColorSpan(mContext.getResources().getColor(R.color.emphasis)),
+                        matcher.start(),
+                        matcher.end(),
+                        Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
+            }
+            return highlight;
+        } else {
+            return highlight;
+        }
+    }
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysAdapter.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysAdapter.java
index 52186b662..7d3166af9 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysAdapter.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysAdapter.java
@@ -17,12 +17,6 @@
 
 package org.sufficientlysecure.keychain.ui.adapter;
 
-import java.util.ArrayList;
-import java.util.List;
-
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
-
 import android.annotation.SuppressLint;
 import android.app.Activity;
 import android.content.Context;
@@ -37,11 +31,27 @@ import android.widget.LinearLayout;
 import android.widget.LinearLayout.LayoutParams;
 import android.widget.TextView;
 
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.helper.OtherHelper;
+import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
+
+import java.util.ArrayList;
+import java.util.List;
+
 public class ImportKeysAdapter extends ArrayAdapter<ImportKeysListEntry> {
     protected LayoutInflater mInflater;
     protected Activity mActivity;
 
-    protected List<ImportKeysListEntry> data;
+    protected List<ImportKeysListEntry> mData;
+
+    static class ViewHolder {
+        private TextView mainUserId;
+        private TextView mainUserIdRest;
+        private TextView keyId;
+        private TextView fingerprint;
+        private TextView algorithm;
+        private TextView status;
+    }
 
     public ImportKeysAdapter(Activity activity) {
         super(activity, -1);
@@ -53,7 +63,7 @@ public class ImportKeysAdapter extends ArrayAdapter<ImportKeysListEntry> {
     public void setData(List<ImportKeysListEntry> data) {
         clear();
         if (data != null) {
-            this.data = data;
+            this.mData = data;
 
             // add data to extended ArrayAdapter
             if (Build.VERSION.SDK_INT >= 11) {
@@ -67,14 +77,15 @@ public class ImportKeysAdapter extends ArrayAdapter<ImportKeysListEntry> {
     }
 
     public List<ImportKeysListEntry> getData() {
-        return data;
+        return mData;
     }
 
     public ArrayList<ImportKeysListEntry> getSelectedData() {
         ArrayList<ImportKeysListEntry> selectedData = new ArrayList<ImportKeysListEntry>();
-        for (ImportKeysListEntry entry : data) {
-            if (entry.isSelected())
+        for (ImportKeysListEntry entry : mData) {
+            if (entry.isSelected()) {
                 selectedData.add(entry);
+            }
         }
         return selectedData;
     }
@@ -85,17 +96,21 @@ public class ImportKeysAdapter extends ArrayAdapter<ImportKeysListEntry> {
     }
 
     public View getView(int position, View convertView, ViewGroup parent) {
-        ImportKeysListEntry entry = data.get(position);
-
-        View view = mInflater.inflate(R.layout.import_keys_list_entry, null);
-
-        TextView mainUserId = (TextView) view.findViewById(R.id.mainUserId);
-        TextView mainUserIdRest = (TextView) view.findViewById(R.id.mainUserIdRest);
-        TextView keyId = (TextView) view.findViewById(R.id.keyId);
-        TextView fingerprint = (TextView) view.findViewById(R.id.fingerprint);
-        TextView algorithm = (TextView) view.findViewById(R.id.algorithm);
-        TextView status = (TextView) view.findViewById(R.id.status);
-
+        ImportKeysListEntry entry = mData.get(position);
+        ViewHolder holder;
+        if (convertView == null) {
+            holder = new ViewHolder();
+            convertView = mInflater.inflate(R.layout.import_keys_list_entry, null);
+            holder.mainUserId = (TextView) convertView.findViewById(R.id.mainUserId);
+            holder.mainUserIdRest = (TextView) convertView.findViewById(R.id.mainUserIdRest);
+            holder.keyId = (TextView) convertView.findViewById(R.id.keyId);
+            holder.fingerprint = (TextView) convertView.findViewById(R.id.fingerprint);
+            holder.algorithm = (TextView) convertView.findViewById(R.id.algorithm);
+            holder.status = (TextView) convertView.findViewById(R.id.status);
+            convertView.setTag(holder);
+        } else {
+            holder = (ViewHolder) convertView.getTag();
+        }
         // main user id
         String userId = entry.userIds.get(0);
         String[] userIdSplit = PgpKeyHelper.splitUserId(userId);
@@ -105,39 +120,40 @@ public class ImportKeysAdapter extends ArrayAdapter<ImportKeysListEntry> {
             // show red user id if it is a secret key
             if (entry.secretKey) {
                 userIdSplit[0] = mActivity.getString(R.string.secret_key) + " " + userIdSplit[0];
-                mainUserId.setTextColor(Color.RED);
+                holder.mainUserId.setTextColor(Color.RED);
             }
-            mainUserId.setText(userIdSplit[0]);
+            holder.mainUserId.setText(userIdSplit[0]);
         } else {
-            mainUserId.setText(R.string.user_id_no_name);
+            holder.mainUserId.setText(R.string.user_id_no_name);
         }
 
         // email
         if (userIdSplit[1] != null) {
-            mainUserIdRest.setText(userIdSplit[1]);
-            mainUserIdRest.setVisibility(View.VISIBLE);
+            holder.mainUserIdRest.setText(userIdSplit[1]);
+            holder.mainUserIdRest.setVisibility(View.VISIBLE);
         } else {
-            mainUserIdRest.setVisibility(View.GONE);
+            holder.mainUserIdRest.setVisibility(View.GONE);
         }
 
-        keyId.setText(entry.hexKeyId);
+        holder.keyId.setText(entry.keyIdHex);
 
-        if (entry.fingerPrint != null) {
-            fingerprint.setText(mActivity.getString(R.string.fingerprint) + " " + entry.fingerPrint);
-            fingerprint.setVisibility(View.VISIBLE);
+        if (entry.fingerPrintHex != null) {
+            holder.fingerprint.setText(PgpKeyHelper.colorizeFingerprint(entry.fingerPrintHex));
+            holder.fingerprint.setVisibility(View.VISIBLE);
         } else {
-            fingerprint.setVisibility(View.GONE);
+            holder.fingerprint.setVisibility(View.GONE);
         }
 
-        algorithm.setText("" + entry.bitStrength + "/" + entry.algorithm);
+        holder.algorithm.setText("" + entry.bitStrength + "/" + entry.algorithm);
 
         if (entry.revoked) {
-            status.setText(R.string.revoked);
+            holder.status.setText(R.string.revoked);
         } else {
-            status.setVisibility(View.GONE);
+            holder.status.setVisibility(View.GONE);
         }
 
-        LinearLayout ll = (LinearLayout) view.findViewById(R.id.list);
+        LinearLayout ll = (LinearLayout) convertView.findViewById(R.id.list);
+        ll.removeAllViews();
         if (entry.userIds.size() == 1) {
             ll.setVisibility(View.GONE);
         } else {
@@ -162,10 +178,10 @@ public class ImportKeysAdapter extends ArrayAdapter<ImportKeysListEntry> {
             }
         }
 
-        CheckBox cBox = (CheckBox) view.findViewById(R.id.selected);
+        CheckBox cBox = (CheckBox) convertView.findViewById(R.id.selected);
         cBox.setChecked(entry.isSelected());
 
-        return view;
+        return convertView;
     }
 
 }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysListEntry.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysListEntry.java
index 4a7a9c93a..9b20effc2 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysListEntry.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysListEntry.java
@@ -19,11 +19,7 @@ package org.sufficientlysecure.keychain.ui.adapter;
 
 import android.os.Parcel;
 import android.os.Parcelable;
-
-import java.io.IOException;
-import java.io.Serializable;
-import java.util.ArrayList;
-import java.util.Date;
+import android.util.SparseArray;
 
 import org.spongycastle.openpgp.PGPKeyRing;
 import org.spongycastle.openpgp.PGPPublicKey;
@@ -33,35 +29,40 @@ import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
 import org.sufficientlysecure.keychain.util.IterableIterator;
 import org.sufficientlysecure.keychain.util.Log;
 
+import java.io.IOException;
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.Date;
+
 public class ImportKeysListEntry implements Serializable, Parcelable {
     private static final long serialVersionUID = -7797972103284992662L;
-    public ArrayList<String> userIds;
 
+    public ArrayList<String> userIds;
     public long keyId;
+    public String keyIdHex;
     public boolean revoked;
     public Date date; // TODO: not displayed
-    public String fingerPrint;
-    public String hexKeyId;
+    public String fingerPrintHex;
     public int bitStrength;
     public String algorithm;
     public boolean secretKey;
 
-    private boolean selected;
+    private boolean mSelected;
 
-    private byte[] bytes = new byte[]{};
+    private byte[] mBytes = new byte[]{};
 
     public ImportKeysListEntry(ImportKeysListEntry b) {
         this.userIds = b.userIds;
         this.keyId = b.keyId;
         this.revoked = b.revoked;
         this.date = b.date;
-        this.fingerPrint = b.fingerPrint;
-        this.hexKeyId = b.hexKeyId;
+        this.fingerPrintHex = b.fingerPrintHex;
+        this.keyIdHex = b.keyIdHex;
         this.bitStrength = b.bitStrength;
         this.algorithm = b.algorithm;
         this.secretKey = b.secretKey;
-        this.selected = b.selected;
-        this.bytes = b.bytes;
+        this.mSelected = b.mSelected;
+        this.mBytes = b.mBytes;
     }
 
     public int describeContents() {
@@ -74,14 +75,14 @@ public class ImportKeysListEntry implements Serializable, Parcelable {
         dest.writeLong(keyId);
         dest.writeByte((byte) (revoked ? 1 : 0));
         dest.writeSerializable(date);
-        dest.writeString(fingerPrint);
-        dest.writeString(hexKeyId);
+        dest.writeString(fingerPrintHex);
+        dest.writeString(keyIdHex);
         dest.writeInt(bitStrength);
         dest.writeString(algorithm);
         dest.writeByte((byte) (secretKey ? 1 : 0));
-        dest.writeByte((byte) (selected ? 1 : 0));
-        dest.writeInt(bytes.length);
-        dest.writeByteArray(bytes);
+        dest.writeByte((byte) (mSelected ? 1 : 0));
+        dest.writeInt(mBytes.length);
+        dest.writeByteArray(mBytes);
     }
 
     public static final Creator<ImportKeysListEntry> CREATOR = new Creator<ImportKeysListEntry>() {
@@ -92,14 +93,14 @@ public class ImportKeysListEntry implements Serializable, Parcelable {
             vr.keyId = source.readLong();
             vr.revoked = source.readByte() == 1;
             vr.date = (Date) source.readSerializable();
-            vr.fingerPrint = source.readString();
-            vr.hexKeyId = source.readString();
+            vr.fingerPrintHex = source.readString();
+            vr.keyIdHex = source.readString();
             vr.bitStrength = source.readInt();
             vr.algorithm = source.readString();
             vr.secretKey = source.readByte() == 1;
-            vr.selected = source.readByte() == 1;
-            vr.bytes = new byte[source.readInt()];
-            source.readByteArray(vr.bytes);
+            vr.mSelected = source.readByte() == 1;
+            vr.mBytes = new byte[source.readInt()];
+            source.readByteArray(vr.mBytes);
 
             return vr;
         }
@@ -109,34 +110,105 @@ public class ImportKeysListEntry implements Serializable, Parcelable {
         }
     };
 
-    public long getKeyId() {
-        return keyId;
+    public String getKeyIdHex() {
+        return keyIdHex;
     }
 
     public byte[] getBytes() {
-        return bytes;
+        return mBytes;
     }
 
     public void setBytes(byte[] bytes) {
-        this.bytes = bytes;
+        this.mBytes = bytes;
+    }
+
+    public boolean isSelected() {
+        return mSelected;
+    }
+
+    public void setSelected(boolean selected) {
+        this.mSelected = selected;
+    }
+
+    public long getKeyId() {
+        return keyId;
+    }
+
+    public void setKeyId(long keyId) {
+        this.keyId = keyId;
+    }
+
+    public void setKeyIdHex(String keyIdHex) {
+        this.keyIdHex = keyIdHex;
+    }
+
+    public boolean isRevoked() {
+        return revoked;
+    }
+
+    public void setRevoked(boolean revoked) {
+        this.revoked = revoked;
+    }
+
+    public Date getDate() {
+        return date;
+    }
+
+    public void setDate(Date date) {
+        this.date = date;
+    }
+
+    public String getFingerPrintHex() {
+        return fingerPrintHex;
+    }
+
+    public void setFingerPrintHex(String fingerPrintHex) {
+        this.fingerPrintHex = fingerPrintHex;
+    }
+
+    public int getBitStrength() {
+        return bitStrength;
+    }
+
+    public void setBitStrength(int bitStrength) {
+        this.bitStrength = bitStrength;
+    }
+
+    public String getAlgorithm() {
+        return algorithm;
+    }
+
+    public void setAlgorithm(String algorithm) {
+        this.algorithm = algorithm;
+    }
+
+    public boolean isSecretKey() {
+        return secretKey;
+    }
+
+    public void setSecretKey(boolean secretKey) {
+        this.secretKey = secretKey;
+    }
+
+    public ArrayList<String> getUserIds() {
+        return userIds;
+    }
+
+    public void setUserIds(ArrayList<String> userIds) {
+        this.userIds = userIds;
     }
 
     /**
      * Constructor for later querying from keyserver
      */
     public ImportKeysListEntry() {
+        // keys from keyserver are always public keys
         secretKey = false;
+        // do not select by default
+        mSelected = false;
         userIds = new ArrayList<String>();
     }
 
-    public boolean isSelected() {
-        return selected;
-    }
-
-    public void setSelected(boolean selected) {
-        this.selected = selected;
-    }
-
     /**
      * Constructor based on key object, used for import from NFC, QR Codes, files
      */
@@ -144,13 +216,13 @@ public class ImportKeysListEntry implements Serializable, Parcelable {
     public ImportKeysListEntry(PGPKeyRing pgpKeyRing) {
         // save actual key object into entry, used to import it later
         try {
-            this.bytes = pgpKeyRing.getEncoded();
+            this.mBytes = pgpKeyRing.getEncoded();
         } catch (IOException e) {
             Log.e(Constants.TAG, "IOException on pgpKeyRing.getEncoded()", e);
         }
 
         // selected is default
-        this.selected = true;
+        this.mSelected = true;
 
         if (pgpKeyRing instanceof PGPSecretKeyRing) {
             secretKey = true;
@@ -162,27 +234,39 @@ public class ImportKeysListEntry implements Serializable, Parcelable {
         for (String userId : new IterableIterator<String>(pgpKeyRing.getPublicKey().getUserIDs())) {
             userIds.add(userId);
         }
+
         this.keyId = pgpKeyRing.getPublicKey().getKeyID();
+        this.keyIdHex = PgpKeyHelper.convertKeyIdToHex(keyId);
 
         this.revoked = pgpKeyRing.getPublicKey().isRevoked();
-        this.fingerPrint = PgpKeyHelper.convertFingerprintToHex(pgpKeyRing.getPublicKey()
-                .getFingerprint(), true);
-        this.hexKeyId = "0x" + PgpKeyHelper.convertKeyIdToHex(keyId);
+        this.fingerPrintHex = PgpKeyHelper.convertFingerprintToHex(pgpKeyRing.getPublicKey()
+                .getFingerprint());
         this.bitStrength = pgpKeyRing.getPublicKey().getBitStrength();
-        int algorithm = pgpKeyRing.getPublicKey().getAlgorithm();
-        if (algorithm == PGPPublicKey.RSA_ENCRYPT || algorithm == PGPPublicKey.RSA_GENERAL
-                || algorithm == PGPPublicKey.RSA_SIGN) {
-            this.algorithm = "RSA";
-        } else if (algorithm == PGPPublicKey.DSA) {
-            this.algorithm = "DSA";
-        } else if (algorithm == PGPPublicKey.ELGAMAL_ENCRYPT
-                || algorithm == PGPPublicKey.ELGAMAL_GENERAL) {
-            this.algorithm = "ElGamal";
-        } else if (algorithm == PGPPublicKey.EC || algorithm == PGPPublicKey.ECDSA) {
-            this.algorithm = "ECC";
-        } else {
-            // TODO: with resources
-            this.algorithm = "unknown";
-        }
+        final int algorithm = pgpKeyRing.getPublicKey().getAlgorithm();
+        this.algorithm = getAlgorithmFromId(algorithm);
+    }
+
+    /**
+     * Based on <a href="http://tools.ietf.org/html/rfc2440#section-9.1">OpenPGP Message Format</a>
+     */
+    private final static SparseArray<String> ALGORITHM_IDS = new SparseArray<String>() {{
+        put(-1, "unknown"); // TODO: with resources
+        put(0, "unencrypted");
+        put(PGPPublicKey.RSA_GENERAL, "RSA");
+        put(PGPPublicKey.RSA_ENCRYPT, "RSA");
+        put(PGPPublicKey.RSA_SIGN, "RSA");
+        put(PGPPublicKey.ELGAMAL_ENCRYPT, "ElGamal");
+        put(PGPPublicKey.ELGAMAL_GENERAL, "ElGamal");
+        put(PGPPublicKey.DSA, "DSA");
+        put(PGPPublicKey.EC, "ECC");
+        put(PGPPublicKey.ECDSA, "ECC");
+        put(PGPPublicKey.ECDH, "ECC");
+    }};
+
+    /**
+     * Based on <a href="http://tools.ietf.org/html/rfc2440#section-9.1">OpenPGP Message Format</a>
+     */
+    public static String getAlgorithmFromId(int algorithmId) {
+        return (ALGORITHM_IDS.get(algorithmId) != null ? ALGORITHM_IDS.get(algorithmId) : ALGORITHM_IDS.get(-1));
     }
-}
\ No newline at end of file
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysListLoader.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysListLoader.java
index 76649b27b..c9983213c 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysListLoader.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysListLoader.java
@@ -17,11 +17,8 @@
 
 package org.sufficientlysecure.keychain.ui.adapter;
 
-import java.io.BufferedInputStream;
-import java.io.InputStream;
-import java.util.ArrayList;
-import java.util.List;
-
+import android.content.Context;
+import android.support.v4.content.AsyncTaskLoader;
 import org.spongycastle.openpgp.PGPKeyRing;
 import org.spongycastle.openpgp.PGPObjectFactory;
 import org.spongycastle.openpgp.PGPUtil;
@@ -30,16 +27,35 @@ import org.sufficientlysecure.keychain.util.InputData;
 import org.sufficientlysecure.keychain.util.Log;
 import org.sufficientlysecure.keychain.util.PositionAwareInputStream;
 
-import android.content.Context;
-import android.support.v4.content.AsyncTaskLoader;
+import java.io.BufferedInputStream;
+import java.io.InputStream;
+import java.util.ArrayList;
+
+public class ImportKeysListLoader
+        extends AsyncTaskLoader<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>> {
+
+    public static class FileHasNoContent extends Exception {
+
+    }
+
+    public static class NonPgpPart extends Exception {
+        private int mCount;
+
+        public NonPgpPart(int count) {
+            this.mCount = count;
+        }
+
+        public int getCount() {
+            return mCount;
+        }
+    }
 
-public class ImportKeysListLoader extends AsyncTaskLoader<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>> {
     Context mContext;
 
     InputData mInputData;
 
-    ArrayList<ImportKeysListEntry> data = new ArrayList<ImportKeysListEntry>();
-    AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>> entryListWrapper;
+    ArrayList<ImportKeysListEntry> mData = new ArrayList<ImportKeysListEntry>();
+    AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>> mEntryListWrapper;
 
     public ImportKeysListLoader(Context context, InputData inputData) {
         super(context);
@@ -50,16 +66,16 @@ public class ImportKeysListLoader extends AsyncTaskLoader<AsyncTaskResultWrapper
     @Override
     public AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>> loadInBackground() {
 
-        entryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>(data, null);
+        mEntryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>(mData, null);
 
         if (mInputData == null) {
             Log.e(Constants.TAG, "Input data is null!");
-            return entryListWrapper;
+            return mEntryListWrapper;
         }
 
         generateListOfKeyrings(mInputData);
 
-        return entryListWrapper;
+        return mEntryListWrapper;
     }
 
     @Override
@@ -87,11 +103,15 @@ public class ImportKeysListLoader extends AsyncTaskLoader<AsyncTaskResultWrapper
 
     /**
      * Reads all PGPKeyRing objects from input
-     * 
-     * @param keyringBytes
+     *
+     * @param inputData
      * @return
      */
     private void generateListOfKeyrings(InputData inputData) {
+
+        boolean isEmpty = true;
+        int nonPgpCounter = 0;
+
         PositionAwareInputStream progressIn = new PositionAwareInputStream(
                 inputData.getInputStream());
 
@@ -103,6 +123,7 @@ public class ImportKeysListLoader extends AsyncTaskLoader<AsyncTaskResultWrapper
 
             // read all available blocks... (asc files can contain many blocks with BEGIN END)
             while (bufferedInput.available() > 0) {
+                isEmpty = false;
                 InputStream in = PGPUtil.getDecoderStream(bufferedInput);
                 PGPObjectFactory objectFactory = new PGPObjectFactory(in);
 
@@ -116,17 +137,31 @@ public class ImportKeysListLoader extends AsyncTaskLoader<AsyncTaskResultWrapper
                         addToData(newKeyring);
                     } else {
                         Log.e(Constants.TAG, "Object not recognized as PGPKeyRing!");
+                        nonPgpCounter++;
                     }
                 }
             }
         } catch (Exception e) {
             Log.e(Constants.TAG, "Exception on parsing key file!", e);
+            mEntryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>(mData, e);
+            nonPgpCounter = 0;
+        }
+
+        if (isEmpty) {
+            Log.e(Constants.TAG, "File has no content!", new FileHasNoContent());
+            mEntryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>
+                    (mData, new FileHasNoContent());
+        }
+
+        if (nonPgpCounter > 0) {
+            mEntryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>
+                    (mData, new NonPgpPart(nonPgpCounter));
         }
     }
 
     private void addToData(PGPKeyRing keyring) {
         ImportKeysListEntry item = new ImportKeysListEntry(keyring);
-        data.add(item);
+        mData.add(item);
     }
 
 }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysListServerLoader.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysListServerLoader.java
index 3a3b6e58b..a4dd06e40 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysListServerLoader.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysListServerLoader.java
@@ -19,7 +19,6 @@ package org.sufficientlysecure.keychain.ui.adapter;
 
 import android.content.Context;
 import android.support.v4.content.AsyncTaskLoader;
-
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.util.HkpKeyServer;
 import org.sufficientlysecure.keychain.util.KeyServer;
@@ -27,14 +26,15 @@ import org.sufficientlysecure.keychain.util.Log;
 
 import java.util.ArrayList;
 
-public class ImportKeysListServerLoader extends AsyncTaskLoader<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>> {
+public class ImportKeysListServerLoader
+        extends AsyncTaskLoader<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>> {
     Context mContext;
 
     String mServerQuery;
     String mKeyServer;
 
-    private ArrayList<ImportKeysListEntry> entryList = new ArrayList<ImportKeysListEntry>();
-    private AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>> entryListWrapper;
+    private ArrayList<ImportKeysListEntry> mEntryList = new ArrayList<ImportKeysListEntry>();
+    private AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>> mEntryListWrapper;
 
     public ImportKeysListServerLoader(Context context, String serverQuery, String keyServer) {
         super(context);
@@ -46,16 +46,16 @@ public class ImportKeysListServerLoader extends AsyncTaskLoader<AsyncTaskResultW
     @Override
     public AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>> loadInBackground() {
 
-        entryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>(entryList, null);
+        mEntryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>(mEntryList, null);
 
         if (mServerQuery == null) {
             Log.e(Constants.TAG, "mServerQuery is null!");
-            return entryListWrapper;
+            return mEntryListWrapper;
         }
 
         queryServer(mServerQuery, mKeyServer);
 
-        return entryListWrapper;
+        return mEntryListWrapper;
     }
 
     @Override
@@ -89,18 +89,19 @@ public class ImportKeysListServerLoader extends AsyncTaskLoader<AsyncTaskResultW
         try {
             ArrayList<ImportKeysListEntry> searchResult = server.search(query);
 
+            mEntryList.clear();
             // add result to data
-            entryList.addAll(searchResult);
-            entryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>(entryList, null);
+            mEntryList.addAll(searchResult);
+            mEntryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>(mEntryList, null);
         } catch (KeyServer.InsufficientQuery e) {
             Log.e(Constants.TAG, "InsufficientQuery", e);
-            entryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>(entryList, e);
+            mEntryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>(mEntryList, e);
         } catch (KeyServer.QueryException e) {
             Log.e(Constants.TAG, "QueryException", e);
-            entryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>(entryList, e);
+            mEntryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>(mEntryList, e);
         } catch (KeyServer.TooManyResponses e) {
             Log.e(Constants.TAG, "TooManyResponses", e);
-            entryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>(entryList, e);
+            mEntryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>(mEntryList, e);
         }
     }
 
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/KeyListPublicAdapter.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/KeyListPublicAdapter.java
deleted file mode 100644
index ac505adfb..000000000
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/KeyListPublicAdapter.java
+++ /dev/null
@@ -1,233 +0,0 @@
-/*
- * Copyright (C) 2013 Dominik Schürmann <dominik@dominikschuermann.de>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package org.sufficientlysecure.keychain.ui.adapter;
-
-import java.util.HashMap;
-import java.util.Set;
-
-import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
-import org.sufficientlysecure.keychain.provider.KeychainContract;
-import org.sufficientlysecure.keychain.util.Log;
-
-import se.emilsjolander.stickylistheaders.StickyListHeadersAdapter;
-
-import android.annotation.SuppressLint;
-import android.content.Context;
-import android.database.Cursor;
-import android.graphics.Color;
-import android.support.v4.widget.CursorAdapter;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.RelativeLayout;
-import android.widget.TextView;
-
-/**
- * Implements StickyListHeadersAdapter from library
- */
-public class KeyListPublicAdapter extends CursorAdapter implements StickyListHeadersAdapter {
-    private LayoutInflater mInflater;
-    private int mSectionColumnIndex;
-    private int mIndexUserId;
-    private int mIndexIsRevoked;
-
-    @SuppressLint("UseSparseArrays")
-    private HashMap<Integer, Boolean> mSelection = new HashMap<Integer, Boolean>();
-
-    public KeyListPublicAdapter(Context context, Cursor c, int flags, int sectionColumnIndex) {
-        super(context, c, flags);
-
-        mInflater = LayoutInflater.from(context);
-        mSectionColumnIndex = sectionColumnIndex;
-        initIndex(c);
-    }
-
-    @Override
-    public Cursor swapCursor(Cursor newCursor) {
-        initIndex(newCursor);
-
-        return super.swapCursor(newCursor);
-    }
-
-    /**
-     * Get column indexes for performance reasons just once in constructor and swapCursor. For a
-     * performance comparison see http://stackoverflow.com/a/17999582
-     *
-     * @param cursor
-     */
-    private void initIndex(Cursor cursor) {
-        if (cursor != null) {
-            mIndexUserId = cursor.getColumnIndexOrThrow(KeychainContract.UserIds.USER_ID);
-            mIndexIsRevoked = cursor.getColumnIndexOrThrow(KeychainContract.Keys.IS_REVOKED);
-        }
-    }
-
-    /**
-     * Bind cursor data to the item list view
-     * <p/>
-     * NOTE: CursorAdapter already implements the ViewHolder pattern in its getView() method. Thus
-     * no ViewHolder is required here.
-     */
-    @Override
-    public void bindView(View view, Context context, Cursor cursor) {
-        TextView mainUserId = (TextView) view.findViewById(R.id.mainUserId);
-        TextView mainUserIdRest = (TextView) view.findViewById(R.id.mainUserIdRest);
-        TextView revoked = (TextView) view.findViewById(R.id.revoked);
-
-        String userId = cursor.getString(mIndexUserId);
-        String[] userIdSplit = PgpKeyHelper.splitUserId(userId);
-        if (userIdSplit[0] != null) {
-            mainUserId.setText(userIdSplit[0]);
-        } else {
-            mainUserId.setText(R.string.user_id_no_name);
-        }
-        if (userIdSplit[1] != null) {
-            mainUserIdRest.setText(userIdSplit[1]);
-            mainUserIdRest.setVisibility(View.VISIBLE);
-        } else {
-            mainUserIdRest.setVisibility(View.GONE);
-        }
-
-        boolean isRevoked = cursor.getInt(mIndexIsRevoked) > 0;
-        if (isRevoked) {
-            revoked.setVisibility(View.VISIBLE);
-        } else {
-            revoked.setVisibility(View.GONE);
-        }
-    }
-
-    @Override
-    public View newView(Context context, Cursor cursor, ViewGroup parent) {
-        return mInflater.inflate(R.layout.key_list_public_item, null);
-    }
-
-    /**
-     * Creates a new header view and binds the section headers to it. It uses the ViewHolder
-     * pattern. Most functionality is similar to getView() from Android's CursorAdapter.
-     * <p/>
-     * NOTE: The variables mDataValid and mCursor are available due to the super class
-     * CursorAdapter.
-     */
-    @Override
-    public View getHeaderView(int position, View convertView, ViewGroup parent) {
-        HeaderViewHolder holder;
-        if (convertView == null) {
-            holder = new HeaderViewHolder();
-            convertView = mInflater.inflate(R.layout.key_list_public_header, parent, false);
-            holder.text = (TextView) convertView.findViewById(R.id.stickylist_header_text);
-            convertView.setTag(holder);
-        } else {
-            holder = (HeaderViewHolder) convertView.getTag();
-        }
-
-        if (!mDataValid) {
-            // no data available at this point
-            Log.d(Constants.TAG, "getHeaderView: No data available at this point!");
-            return convertView;
-        }
-
-        if (!mCursor.moveToPosition(position)) {
-            throw new IllegalStateException("couldn't move cursor to position " + position);
-        }
-
-        // set header text as first char in user id
-        String userId = mCursor.getString(mSectionColumnIndex);
-        String headerText = convertView.getResources().getString(R.string.user_id_no_name);
-        if (userId != null && userId.length() > 0) {
-            headerText = "" + mCursor.getString(mSectionColumnIndex).subSequence(0, 1).charAt(0);
-        }
-        holder.text.setText(headerText);
-        return convertView;
-    }
-
-    /**
-     * Header IDs should be static, position=1 should always return the same Id that is.
-     */
-    @Override
-    public long getHeaderId(int position) {
-        if (!mDataValid) {
-            // no data available at this point
-            Log.d(Constants.TAG, "getHeaderView: No data available at this point!");
-            return -1;
-        }
-
-        if (!mCursor.moveToPosition(position)) {
-            throw new IllegalStateException("couldn't move cursor to position " + position);
-        }
-
-        // return the first character of the name as ID because this is what
-        // headers are based upon
-        String userId = mCursor.getString(mSectionColumnIndex);
-        if (userId != null && userId.length() > 0) {
-            return userId.subSequence(0, 1).charAt(0);
-        } else {
-            return Long.MAX_VALUE;
-        }
-    }
-
-    class HeaderViewHolder {
-        TextView text;
-    }
-
-    /**
-     * -------------------------- MULTI-SELECTION METHODS --------------
-     */
-    public void setNewSelection(int position, boolean value) {
-        mSelection.put(position, value);
-        notifyDataSetChanged();
-    }
-
-    public boolean isPositionChecked(int position) {
-        Boolean result = mSelection.get(position);
-        return result == null ? false : result;
-    }
-
-    public Set<Integer> getCurrentCheckedPosition() {
-        return mSelection.keySet();
-    }
-
-    public void removeSelection(int position) {
-        mSelection.remove(position);
-        notifyDataSetChanged();
-    }
-
-    public void clearSelection() {
-        mSelection.clear();
-        notifyDataSetChanged();
-    }
-
-    @Override
-    public View getView(int position, View convertView, ViewGroup parent) {
-        // let the adapter handle setting up the row views
-        View v = super.getView(position, convertView, parent);
-
-        /**
-         * Change color for multi-selection
-         */
-        // default color
-        v.setBackgroundColor(Color.TRANSPARENT);
-        if (mSelection.get(position) != null && mSelection.get(position).booleanValue()) {
-            // this is a selected position, change color!
-            v.setBackgroundColor(parent.getResources().getColor(R.color.emphasis));
-        }
-        return v;
-    }
-
-}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/KeyListSecretAdapter.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/KeyListSecretAdapter.java
deleted file mode 100644
index 11d1e8c17..000000000
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/KeyListSecretAdapter.java
+++ /dev/null
@@ -1,138 +0,0 @@
-/*
- * Copyright (C) 2013 Dominik Schürmann <dominik@dominikschuermann.de>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package org.sufficientlysecure.keychain.ui.adapter;
-
-import java.util.HashMap;
-import java.util.Set;
-
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
-import org.sufficientlysecure.keychain.provider.KeychainContract.UserIds;
-
-import android.annotation.SuppressLint;
-import android.content.Context;
-import android.database.Cursor;
-import android.graphics.Color;
-import android.support.v4.widget.CursorAdapter;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.TextView;
-
-public class KeyListSecretAdapter extends CursorAdapter {
-    private LayoutInflater mInflater;
-
-    private int mIndexUserId;
-
-    @SuppressLint("UseSparseArrays")
-    private HashMap<Integer, Boolean> mSelection = new HashMap<Integer, Boolean>();
-
-    public KeyListSecretAdapter(Context context, Cursor c, int flags) {
-        super(context, c, flags);
-
-        mInflater = LayoutInflater.from(context);
-        initIndex(c);
-    }
-
-    @Override
-    public Cursor swapCursor(Cursor newCursor) {
-        initIndex(newCursor);
-
-        return super.swapCursor(newCursor);
-    }
-
-    /**
-     * Get column indexes for performance reasons just once in constructor and swapCursor. For a
-     * performance comparison see http://stackoverflow.com/a/17999582
-     * 
-     * @param cursor
-     */
-    private void initIndex(Cursor cursor) {
-        if (cursor != null) {
-            mIndexUserId = cursor.getColumnIndexOrThrow(UserIds.USER_ID);
-        }
-    }
-
-    @Override
-    public void bindView(View view, Context context, Cursor cursor) {
-        TextView mainUserId = (TextView) view.findViewById(R.id.mainUserId);
-        TextView mainUserIdRest = (TextView) view.findViewById(R.id.mainUserIdRest);
-
-        String userId = cursor.getString(mIndexUserId);
-        String[] userIdSplit = PgpKeyHelper.splitUserId(userId);
-
-        if (userIdSplit[0] != null) {
-            mainUserId.setText(userIdSplit[0]);
-        } else {
-            mainUserId.setText(R.string.user_id_no_name);
-        }
-        if (userIdSplit[1] != null) {
-            mainUserIdRest.setText(userIdSplit[1]);
-        } else {
-            mainUserIdRest.setText("");
-        }
-    }
-
-    @Override
-    public View newView(Context context, Cursor cursor, ViewGroup parent) {
-        return mInflater.inflate(R.layout.key_list_secret_item, null);
-    }
-
-    /** -------------------------- MULTI-SELECTION METHODS -------------- */
-    public void setNewSelection(int position, boolean value) {
-        mSelection.put(position, value);
-        notifyDataSetChanged();
-    }
-
-    public boolean isPositionChecked(int position) {
-        Boolean result = mSelection.get(position);
-        return result == null ? false : result;
-    }
-
-    public Set<Integer> getCurrentCheckedPosition() {
-        return mSelection.keySet();
-    }
-
-    public void removeSelection(int position) {
-        mSelection.remove(position);
-        notifyDataSetChanged();
-    }
-
-    public void clearSelection() {
-        mSelection.clear();
-        notifyDataSetChanged();
-    }
-
-    @Override
-    public View getView(int position, View convertView, ViewGroup parent) {
-        // let the adapter handle setting up the row views
-        View v = super.getView(position, convertView, parent);
-
-        /**
-         * Change color for multi-selection
-         */
-        // default color
-        v.setBackgroundColor(Color.TRANSPARENT);
-        if (mSelection.get(position) != null) {
-            // this is a selected position, change color!
-            v.setBackgroundColor(parent.getResources().getColor(R.color.emphasis));
-        }
-        return v;
-    }
-
-}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/KeyValueSpinnerAdapter.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/KeyValueSpinnerAdapter.java
index 78f7b1f7e..c997599bd 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/KeyValueSpinnerAdapter.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/KeyValueSpinnerAdapter.java
@@ -17,15 +17,11 @@
 
 package org.sufficientlysecure.keychain.ui.adapter;
 
-import java.util.Comparator;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.SortedSet;
-import java.util.TreeSet;
-
 import android.content.Context;
 import android.widget.ArrayAdapter;
 
+import java.util.*;
+
 public class KeyValueSpinnerAdapter extends ArrayAdapter<String> {
     private final HashMap<Integer, String> mData;
     private final int[] mKeys;
@@ -98,4 +94,4 @@ public class KeyValueSpinnerAdapter extends ArrayAdapter<String> {
         }
         return -1;
     }
-}
\ No newline at end of file
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/SelectKeyCursorAdapter.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/SelectKeyCursorAdapter.java
index d44dd5890..fbbb9caa4 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/SelectKeyCursorAdapter.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/SelectKeyCursorAdapter.java
@@ -17,23 +17,22 @@
 
 package org.sufficientlysecure.keychain.ui.adapter;
 
-import org.sufficientlysecure.keychain.Id;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
-import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
-import org.sufficientlysecure.keychain.provider.KeychainContract.UserIds;
-
 import android.content.Context;
 import android.database.Cursor;
-import android.support.v4.widget.CursorAdapter;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.CheckBox;
 import android.widget.ListView;
 import android.widget.TextView;
+import org.sufficientlysecure.keychain.Id;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
+import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
+import org.sufficientlysecure.keychain.provider.KeychainContract.UserIds;
 
-public class SelectKeyCursorAdapter extends CursorAdapter {
+
+public class SelectKeyCursorAdapter extends HighlightQueryCursorAdapter {
 
     protected int mKeyType;
 
@@ -45,17 +44,16 @@ public class SelectKeyCursorAdapter extends CursorAdapter {
     private int mIndexProjectionValid;
     private int mIndexProjectionAvailable;
 
-    public final static String PROJECTION_ROW_AVAILABLE = "available";
-    public final static String PROJECTION_ROW_VALID = "valid";
+    public static final String PROJECTION_ROW_AVAILABLE = "available";
+    public static final String PROJECTION_ROW_VALID = "valid";
 
     public SelectKeyCursorAdapter(Context context, Cursor c, int flags, ListView listView,
-            int keyType) {
+                                  int keyType) {
         super(context, c, flags);
 
         mInflater = LayoutInflater.from(context);
         mListView = listView;
         mKeyType = keyType;
-
         initIndex(c);
     }
 
@@ -69,7 +67,7 @@ public class SelectKeyCursorAdapter extends CursorAdapter {
     /**
      * Get column indexes for performance reasons just once in constructor and swapCursor. For a
      * performance comparison see http://stackoverflow.com/a/17999582
-     * 
+     *
      * @param cursor
      */
     private void initIndex(Cursor cursor) {
@@ -104,12 +102,12 @@ public class SelectKeyCursorAdapter extends CursorAdapter {
         String[] userIdSplit = PgpKeyHelper.splitUserId(userId);
 
         if (userIdSplit[0] != null) {
-            mainUserId.setText(userIdSplit[0]);
+            mainUserId.setText(highlightSearchQuery(userIdSplit[0]));
         } else {
             mainUserId.setText(R.string.user_id_no_name);
         }
         if (userIdSplit[1] != null) {
-            mainUserIdRest.setText(userIdSplit[1]);
+            mainUserIdRest.setText(highlightSearchQuery(userIdSplit[1]));
         } else {
             mainUserIdRest.setText("");
         }
@@ -117,7 +115,7 @@ public class SelectKeyCursorAdapter extends CursorAdapter {
         // TODO: needed to key id to no?
         keyId.setText(R.string.no_key);
         long masterKeyId = cursor.getLong(mIndexMasterKeyId);
-        keyId.setText(PgpKeyHelper.convertKeyIdToHex(masterKeyId));
+        keyId.setText(PgpKeyHelper.convertKeyIdToHexShort(masterKeyId));
 
         // TODO: needed to set unknown_status?
         status.setText(R.string.unknown_status);
@@ -164,5 +162,4 @@ public class SelectKeyCursorAdapter extends CursorAdapter {
     public View newView(Context context, Cursor cursor, ViewGroup parent) {
         return mInflater.inflate(R.layout.select_key_item, null);
     }
-
 }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/TabsAdapter.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/TabsAdapter.java
index 924a70897..f435d46ef 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/TabsAdapter.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/TabsAdapter.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
 package org.sufficientlysecure.keychain.ui.adapter;
 
 import android.content.Context;
@@ -19,12 +36,12 @@ public class TabsAdapter extends FragmentStatePagerAdapter implements ActionBar.
     private final ArrayList<TabInfo> mTabs = new ArrayList<TabInfo>();
 
     static final class TabInfo {
-        private final Class<?> clss;
-        private final Bundle args;
+        private final Class<?> mClss;
+        private final Bundle mArgs;
 
-        TabInfo(Class<?> _class, Bundle _args) {
-            clss = _class;
-            args = _args;
+        TabInfo(Class<?> mClss, Bundle mArgs) {
+            this.mClss = mClss;
+            this.mArgs = mArgs;
         }
     }
 
@@ -54,7 +71,7 @@ public class TabsAdapter extends FragmentStatePagerAdapter implements ActionBar.
     @Override
     public Fragment getItem(int position) {
         TabInfo info = mTabs.get(position);
-        return Fragment.instantiate(mContext, info.clss.getName(), info.args);
+        return Fragment.instantiate(mContext, info.mClss.getName(), info.mArgs);
     }
 
     public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
@@ -81,4 +98,4 @@ public class TabsAdapter extends FragmentStatePagerAdapter implements ActionBar.
 
     public void onTabReselected(ActionBar.Tab tab, FragmentTransaction ft) {
     }
-}
\ No newline at end of file
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ViewKeyKeysAdapter.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ViewKeyKeysAdapter.java
index 54c7eb60e..9d60c1530 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ViewKeyKeysAdapter.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ViewKeyKeysAdapter.java
@@ -17,18 +17,23 @@
 
 package org.sufficientlysecure.keychain.ui.adapter;
 
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
-import org.sufficientlysecure.keychain.provider.KeychainContract.Keys;
-
 import android.content.Context;
+import android.content.res.ColorStateList;
 import android.database.Cursor;
+import android.graphics.Color;
 import android.support.v4.widget.CursorAdapter;
+import android.text.format.DateFormat;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ImageView;
 import android.widget.TextView;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.helper.OtherHelper;
+import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
+import org.sufficientlysecure.keychain.provider.KeychainContract.Keys;
+
+import java.util.Date;
 
 public class ViewKeyKeysAdapter extends CursorAdapter {
     private LayoutInflater mInflater;
@@ -40,6 +45,10 @@ public class ViewKeyKeysAdapter extends CursorAdapter {
     private int mIndexCanCertify;
     private int mIndexCanEncrypt;
     private int mIndexCanSign;
+    private int mIndexRevokedKey;
+    private int mIndexExpiry;
+
+    private ColorStateList mDefaultTextColor;
 
     public ViewKeyKeysAdapter(Context context, Cursor c, int flags) {
         super(context, c, flags);
@@ -59,7 +68,7 @@ public class ViewKeyKeysAdapter extends CursorAdapter {
     /**
      * Get column indexes for performance reasons just once in constructor and swapCursor. For a
      * performance comparison see http://stackoverflow.com/a/17999582
-     * 
+     *
      * @param cursor
      */
     private void initIndex(Cursor cursor) {
@@ -71,6 +80,8 @@ public class ViewKeyKeysAdapter extends CursorAdapter {
             mIndexCanCertify = cursor.getColumnIndexOrThrow(Keys.CAN_CERTIFY);
             mIndexCanEncrypt = cursor.getColumnIndexOrThrow(Keys.CAN_ENCRYPT);
             mIndexCanSign = cursor.getColumnIndexOrThrow(Keys.CAN_SIGN);
+            mIndexRevokedKey = cursor.getColumnIndexOrThrow(Keys.IS_REVOKED);
+            mIndexExpiry = cursor.getColumnIndexOrThrow(Keys.EXPIRY);
         }
     }
 
@@ -78,17 +89,18 @@ public class ViewKeyKeysAdapter extends CursorAdapter {
     public void bindView(View view, Context context, Cursor cursor) {
         TextView keyId = (TextView) view.findViewById(R.id.keyId);
         TextView keyDetails = (TextView) view.findViewById(R.id.keyDetails);
+        TextView keyExpiry = (TextView) view.findViewById(R.id.keyExpiry);
         ImageView masterKeyIcon = (ImageView) view.findViewById(R.id.ic_masterKey);
         ImageView certifyIcon = (ImageView) view.findViewById(R.id.ic_certifyKey);
         ImageView encryptIcon = (ImageView) view.findViewById(R.id.ic_encryptKey);
         ImageView signIcon = (ImageView) view.findViewById(R.id.ic_signKey);
+        ImageView revokedKeyIcon = (ImageView) view.findViewById(R.id.ic_revokedKey);
 
-        String keyIdStr = "0x" + PgpKeyHelper.convertKeyIdToHex(cursor.getLong(mIndexKeyId));
+        String keyIdStr = PgpKeyHelper.convertKeyIdToHexShort(cursor.getLong(mIndexKeyId));
         String algorithmStr = PgpKeyHelper.getAlgorithmInfo(cursor.getInt(mIndexAlgorithm),
                 cursor.getInt(mIndexKeySize));
 
         keyId.setText(keyIdStr);
-
         keyDetails.setText("(" + algorithmStr + ")");
 
         if (cursor.getInt(mIndexIsMasterKey) != 1) {
@@ -114,11 +126,52 @@ public class ViewKeyKeysAdapter extends CursorAdapter {
         } else {
             signIcon.setVisibility(View.VISIBLE);
         }
+
+        boolean valid = true;
+        if (cursor.getInt(mIndexRevokedKey) > 0) {
+            revokedKeyIcon.setVisibility(View.VISIBLE);
+
+            valid = false;
+        } else {
+            keyId.setTextColor(mDefaultTextColor);
+            keyDetails.setTextColor(mDefaultTextColor);
+            keyExpiry.setTextColor(mDefaultTextColor);
+
+            revokedKeyIcon.setVisibility(View.GONE);
+        }
+
+        if (!cursor.isNull(mIndexExpiry)) {
+            Date expiryDate = new Date(cursor.getLong(mIndexExpiry) * 1000);
+
+            valid = valid && expiryDate.after(new Date());
+            keyExpiry.setText("(" +
+                    context.getString(R.string.label_expiry) + ": " +
+                    DateFormat.getDateFormat(context).format(expiryDate) + ")");
+
+            keyExpiry.setVisibility(View.VISIBLE);
+        }
+        else {
+            keyExpiry.setVisibility(View.GONE);
+        }
+        // if key is expired or revoked, strike through text
+        if (!valid) {
+            keyId.setText(OtherHelper.strikeOutText(keyId.getText()));
+            keyDetails.setText(OtherHelper.strikeOutText(keyDetails.getText()));
+            keyExpiry.setText(OtherHelper.strikeOutText(keyExpiry.getText()));
+        }
+        keyId.setEnabled(valid);
+        keyDetails.setEnabled(valid);
+        keyExpiry.setEnabled(valid);
     }
 
     @Override
     public View newView(Context context, Cursor cursor, ViewGroup parent) {
-        return mInflater.inflate(R.layout.view_key_keys_item, null);
+        View view = mInflater.inflate(R.layout.view_key_keys_item, null);
+        if (mDefaultTextColor == null) {
+            TextView keyId = (TextView) view.findViewById(R.id.keyId);
+            mDefaultTextColor = keyId.getTextColors();
+        }
+        return view;
     }
 
 }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ViewKeyUserIdsAdapter.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ViewKeyUserIdsAdapter.java
index cf8699417..61572b9ce 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ViewKeyUserIdsAdapter.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ViewKeyUserIdsAdapter.java
@@ -17,33 +17,54 @@
 
 package org.sufficientlysecure.keychain.ui.adapter;
 
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.provider.KeychainContract.UserIds;
-
 import android.content.Context;
 import android.database.Cursor;
 import android.support.v4.widget.CursorAdapter;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.CheckBox;
+import android.widget.CompoundButton;
 import android.widget.TextView;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
+import org.sufficientlysecure.keychain.provider.KeychainContract.UserIds;
+
+import java.util.ArrayList;
 
 public class ViewKeyUserIdsAdapter extends CursorAdapter {
     private LayoutInflater mInflater;
 
-    private int mIndexUserId;
+    private int mIndexUserId, mIndexRank;
 
-    public ViewKeyUserIdsAdapter(Context context, Cursor c, int flags) {
+    final private ArrayList<Boolean> mCheckStates;
+
+    public ViewKeyUserIdsAdapter(Context context, Cursor c, int flags, boolean showCheckBoxes) {
         super(context, c, flags);
 
         mInflater = LayoutInflater.from(context);
 
+        mCheckStates = showCheckBoxes ? new ArrayList<Boolean>() : null;
+
         initIndex(c);
     }
+    public ViewKeyUserIdsAdapter(Context context, Cursor c, int flags) {
+        this(context, c, flags, false);
+    }
 
     @Override
     public Cursor swapCursor(Cursor newCursor) {
         initIndex(newCursor);
+        if(mCheckStates != null) {
+            mCheckStates.clear();
+            if(newCursor != null) {
+                int count = newCursor.getCount();
+                mCheckStates.ensureCapacity(count);
+                // initialize to true (use case knowledge: we usually want to sign all uids)
+                for(int i = 0; i < count; i++)
+                    mCheckStates.add(true);
+            }
+        }
 
         return super.swapCursor(newCursor);
     }
@@ -51,26 +72,73 @@ public class ViewKeyUserIdsAdapter extends CursorAdapter {
     /**
      * Get column indexes for performance reasons just once in constructor and swapCursor. For a
      * performance comparison see http://stackoverflow.com/a/17999582
-     * 
+     *
      * @param cursor
      */
     private void initIndex(Cursor cursor) {
         if (cursor != null) {
             mIndexUserId = cursor.getColumnIndexOrThrow(UserIds.USER_ID);
+            mIndexRank = cursor.getColumnIndexOrThrow(UserIds.RANK);
         }
     }
 
     @Override
     public void bindView(View view, Context context, Cursor cursor) {
-        String userIdStr = cursor.getString(mIndexUserId);
 
-        TextView userId = (TextView) view.findViewById(R.id.userId);
-        userId.setText(userIdStr);
+        TextView vRank = (TextView) view.findViewById(R.id.rank);
+        TextView vUserId = (TextView) view.findViewById(R.id.userId);
+        TextView vAddress = (TextView) view.findViewById(R.id.address);
+
+        vRank.setText(Integer.toString(cursor.getInt(mIndexRank)));
+
+        String[] userId = PgpKeyHelper.splitUserId(cursor.getString(mIndexUserId));
+        if (userId[0] != null) {
+            vUserId.setText(userId[0]);
+        } else {
+            vUserId.setText(R.string.user_id_no_name);
+        }
+        vAddress.setText(userId[1]);
+
+        // don't care further if checkboxes aren't shown
+        if(mCheckStates == null)
+            return;
+
+        final CheckBox vCheckBox = (CheckBox) view.findViewById(R.id.checkBox);
+        final int position = cursor.getPosition();
+        vCheckBox.setClickable(false);
+        vCheckBox.setChecked(mCheckStates.get(position));
+        vCheckBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
+                mCheckStates.set(position, b);
+            }
+        });
+        view.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                vCheckBox.toggle();
+            }
+        });
+
+    }
+
+    public ArrayList<String> getSelectedUserIds() {
+        ArrayList<String> result = new ArrayList<String>();
+        for(int i = 0; i < mCheckStates.size(); i++) {
+            if(mCheckStates.get(i)) {
+                mCursor.moveToPosition(i);
+                result.add(mCursor.getString(mIndexUserId));
+            }
+        }
+        return result;
     }
 
     @Override
     public View newView(Context context, Cursor cursor, ViewGroup parent) {
-        return mInflater.inflate(R.layout.view_key_userids_item, null);
+        View view = mInflater.inflate(R.layout.view_key_userids_item, null);
+        // only need to do this once ever, since mShowCheckBoxes is final
+        view.findViewById(R.id.checkBox).setVisibility(mCheckStates != null ? View.VISIBLE : View.GONE);
+        return view;
     }
 
 }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/BadImportKeyDialogFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/BadImportKeyDialogFragment.java
index 2b8cba857..20b70658c 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/BadImportKeyDialogFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/BadImportKeyDialogFragment.java
@@ -23,7 +23,6 @@ import android.content.DialogInterface;
 import android.os.Bundle;
 import android.support.v4.app.DialogFragment;
 import android.support.v4.app.FragmentActivity;
-
 import org.sufficientlysecure.keychain.R;
 
 public class BadImportKeyDialogFragment extends DialogFragment {
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/CreateKeyDialogFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/CreateKeyDialogFragment.java
index 98b677511..ffb45afc5 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/CreateKeyDialogFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/CreateKeyDialogFragment.java
@@ -25,14 +25,14 @@ import android.support.v4.app.DialogFragment;
 import android.support.v4.app.FragmentActivity;
 import android.view.LayoutInflater;
 import android.view.View;
+import android.widget.AdapterView;
 import android.widget.ArrayAdapter;
 import android.widget.Spinner;
-
 import org.sufficientlysecure.keychain.Id;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.util.Choice;
 
-import java.util.Vector;
+import java.util.ArrayList;
 
 public class CreateKeyDialogFragment extends DialogFragment {
 
@@ -78,7 +78,7 @@ public class CreateKeyDialogFragment extends DialogFragment {
         boolean wouldBeMasterKey = (childCount == 0);
 
         final Spinner algorithm = (Spinner) view.findViewById(R.id.create_key_algorithm);
-        Vector<Choice> choices = new Vector<Choice>();
+        ArrayList<Choice> choices = new ArrayList<Choice>();
         choices.add(new Choice(Id.choice.algorithm.dsa, getResources().getString(
                 R.string.dsa)));
         if (!wouldBeMasterKey) {
@@ -114,21 +114,8 @@ public class CreateKeyDialogFragment extends DialogFragment {
                     public void onClick(DialogInterface di, int id) {
                         di.dismiss();
                         try {
-                            int nKeyIndex = keySize.getSelectedItemPosition();
-                            switch (nKeyIndex) {
-                                case 0:
-                                    mNewKeySize = 512;
-                                    break;
-                                case 1:
-                                    mNewKeySize = 1024;
-                                    break;
-                                case 2:
-                                    mNewKeySize = 2048;
-                                    break;
-                                case 3:
-                                    mNewKeySize = 4096;
-                                    break;
-                            }
+                            final String selectedItem = (String) keySize.getSelectedItem();
+                            mNewKeySize = Integer.parseInt(selectedItem);
                         } catch (NumberFormatException e) {
                             mNewKeySize = 0;
                         }
@@ -146,7 +133,26 @@ public class CreateKeyDialogFragment extends DialogFragment {
                     }
                 });
 
-        return dialog.create();
+        final AlertDialog alertDialog = dialog.create();
+
+        final AdapterView.OnItemSelectedListener weakRsaListener = new AdapterView.OnItemSelectedListener() {
+            @Override
+            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
+                final Choice selectedAlgorithm = (Choice)algorithm.getSelectedItem();
+                final int selectedKeySize = Integer.parseInt((String)keySize.getSelectedItem());
+                final boolean isWeakRsa = (selectedAlgorithm.getId() == Id.choice.algorithm.rsa && selectedKeySize <= 1024);
+                alertDialog.getButton(AlertDialog.BUTTON_POSITIVE).setEnabled(!isWeakRsa);
+            }
+
+            @Override
+            public void onNothingSelected(AdapterView<?> parent) {
+            }
+        };
+
+        keySize.setOnItemSelectedListener(weakRsaListener);
+        algorithm.setOnItemSelectedListener(weakRsaListener);
+
+        return alertDialog;
     }
 
-}
\ No newline at end of file
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/DeleteFileDialogFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/DeleteFileDialogFragment.java
index cd8bc79a9..b4c38184c 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/DeleteFileDialogFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/DeleteFileDialogFragment.java
@@ -17,10 +17,6 @@
 
 package org.sufficientlysecure.keychain.ui.dialog;
 
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.service.KeychainIntentService;
-import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
-
 import android.app.AlertDialog;
 import android.app.Dialog;
 import android.app.ProgressDialog;
@@ -32,6 +28,9 @@ import android.os.Messenger;
 import android.support.v4.app.DialogFragment;
 import android.support.v4.app.FragmentActivity;
 import android.widget.Toast;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.service.KeychainIntentService;
+import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
 
 public class DeleteFileDialogFragment extends DialogFragment {
     private static final String ARG_DELETE_FILE = "delete_file";
@@ -67,7 +66,7 @@ public class DeleteFileDialogFragment extends DialogFragment {
         alert.setMessage(this.getString(R.string.file_delete_confirmation, deleteFile));
 
         alert.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
-            
+
             @Override
             public void onClick(DialogInterface dialog, int id) {
                 dismiss();
@@ -83,19 +82,23 @@ public class DeleteFileDialogFragment extends DialogFragment {
                 intent.putExtra(KeychainIntentService.EXTRA_DATA, data);
 
                 ProgressDialogFragment deletingDialog = ProgressDialogFragment.newInstance(
-                        R.string.progress_deleting_securely, ProgressDialog.STYLE_HORIZONTAL, false, null);
-
-                // Message is received after deleting is done in ApgService
-                KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(activity, deletingDialog) {
+                        getString(R.string.progress_deleting_securely),
+                        ProgressDialog.STYLE_HORIZONTAL,
+                        false,
+                        null);
+
+                // Message is received after deleting is done in KeychainIntentService
+                KeychainIntentServiceHandler saveHandler =
+                        new KeychainIntentServiceHandler(activity, deletingDialog) {
                     public void handleMessage(Message message) {
-                        // handle messages by standard ApgHandler first
+                        // handle messages by standard KeychainIntentHandler first
                         super.handleMessage(message);
 
                         if (message.arg1 == KeychainIntentServiceHandler.MESSAGE_OKAY) {
                             Toast.makeText(activity, R.string.file_delete_successful,
                                     Toast.LENGTH_SHORT).show();
                         }
-                    };
+                    }
                 };
 
                 // Create a new Messenger for the communication back
@@ -118,4 +121,4 @@ public class DeleteFileDialogFragment extends DialogFragment {
 
         return alert.create();
     }
-}
\ No newline at end of file
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/DeleteKeyDialogFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/DeleteKeyDialogFragment.java
index dc40bab2a..3ff88aa2b 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/DeleteKeyDialogFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/DeleteKeyDialogFragment.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2012-2013 Dominik Schürmann <dominik@dominikschuermann.de>
+ * Copyright (C) 2013-2014 Dominik Schürmann <dominik@dominikschuermann.de>
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -28,6 +28,11 @@ import android.os.Messenger;
 import android.os.RemoteException;
 import android.support.v4.app.DialogFragment;
 import android.support.v4.app.FragmentActivity;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.CheckBox;
+import android.widget.LinearLayout;
+import android.widget.TextView;
 
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.Id;
@@ -41,140 +46,163 @@ import java.util.ArrayList;
 
 public class DeleteKeyDialogFragment extends DialogFragment {
     private static final String ARG_MESSENGER = "messenger";
-    private static final String ARG_DELETE_KEY_RING_ROW_IDS = "delete_file";
-    private static final String ARG_KEY_TYPE = "key_type";
+    private static final String ARG_DELETE_KEY_RING_ROW_IDS = "delete_key_ring_row_ids";
 
     public static final int MESSAGE_OKAY = 1;
+    public static final int MESSAGE_ERROR = 0;
 
-    public static final String MESSAGE_NOT_DELETED = "not_deleted";
+    private boolean isSingleSelection = false;
+
+    private TextView mainMessage;
+    private CheckBox checkDeleteSecret;
+    private LinearLayout deleteSecretKeyView;
+    private View inflateView;
 
     private Messenger mMessenger;
 
     /**
      * Creates new instance of this delete file dialog fragment
      */
-    public static DeleteKeyDialogFragment newInstance(Messenger messenger, long[] keyRingRowIds,
-                                                      int keyType) {
+    public static DeleteKeyDialogFragment newInstance(Messenger messenger, long[] keyRingRowIds
+    ) {
         DeleteKeyDialogFragment frag = new DeleteKeyDialogFragment();
         Bundle args = new Bundle();
 
         args.putParcelable(ARG_MESSENGER, messenger);
         args.putLongArray(ARG_DELETE_KEY_RING_ROW_IDS, keyRingRowIds);
-        args.putInt(ARG_KEY_TYPE, keyType);
+        //We don't need the key type
 
         frag.setArguments(args);
 
         return frag;
     }
 
-    /**
-     * Creates dialog
-     */
+
     @Override
     public Dialog onCreateDialog(Bundle savedInstanceState) {
+
         final FragmentActivity activity = getActivity();
         mMessenger = getArguments().getParcelable(ARG_MESSENGER);
 
         final long[] keyRingRowIds = getArguments().getLongArray(ARG_DELETE_KEY_RING_ROW_IDS);
-        final int keyType = getArguments().getInt(ARG_KEY_TYPE);
 
         AlertDialog.Builder builder = new AlertDialog.Builder(activity);
+
+        //Setup custom View to display in AlertDialog
+        LayoutInflater inflater = activity.getLayoutInflater();
+        inflateView = inflater.inflate(R.layout.view_key_delete_fragment, null);
+        builder.setView(inflateView);
+
+        deleteSecretKeyView = (LinearLayout) inflateView.findViewById(R.id.deleteSecretKeyView);
+        mainMessage = (TextView) inflateView.findViewById(R.id.mainMessage);
+        checkDeleteSecret = (CheckBox) inflateView.findViewById(R.id.checkDeleteSecret);
+
         builder.setTitle(R.string.warning);
 
+        //If only a single key has been selected
         if (keyRingRowIds.length == 1) {
             Uri dataUri;
-            if (keyType == Id.type.public_key) {
-                dataUri = KeychainContract.KeyRings.buildPublicKeyRingsUri(String.valueOf(keyRingRowIds[0]));
+            ArrayList<Long> publicKeyRings; //Any one will do
+            isSingleSelection = true;
+
+            long selectedRow = keyRingRowIds[0];
+            long keyType;
+            publicKeyRings = ProviderHelper.getPublicKeyRingsRowIds(activity);
+
+            if (publicKeyRings.contains(selectedRow)) {
+                //TODO Should be a better method to do this other than getting all the KeyRings
+                dataUri = KeychainContract.KeyRings.buildPublicKeyRingsUri(String.valueOf(selectedRow));
+                keyType = Id.type.public_key;
             } else {
-                dataUri = KeychainContract.KeyRings.buildSecretKeyRingsUri(String.valueOf(keyRingRowIds[0]));
+                dataUri = KeychainContract.KeyRings.buildSecretKeyRingsUri(String.valueOf(selectedRow));
+                keyType = Id.type.secret_key;
             }
+
             String userId = ProviderHelper.getUserId(activity, dataUri);
+            //Hide the Checkbox and TextView since this is a single selection,user will be notified thru message
+            deleteSecretKeyView.setVisibility(View.GONE);
+            //Set message depending on which key it is.
+            mainMessage.setText(getString(keyType == Id.type.secret_key ? R.string.secret_key_deletion_confirmation
+                    : R.string.public_key_deletetion_confirmation, userId));
+
 
-            builder.setMessage(getString(
-                    keyType == Id.type.public_key ? R.string.key_deletion_confirmation
-                            : R.string.secret_key_deletion_confirmation, userId));
         } else {
-            builder.setMessage(R.string.key_deletion_confirmation_multi);
+            deleteSecretKeyView.setVisibility(View.VISIBLE);
+            mainMessage.setText(R.string.key_deletion_confirmation_multi);
         }
 
+
         builder.setIcon(R.drawable.ic_dialog_alert_holo_light);
         builder.setPositiveButton(R.string.btn_delete, new DialogInterface.OnClickListener() {
-
             @Override
-            public void onClick(DialogInterface dialog, int id) {
-                ArrayList<String> notDeleted = new ArrayList<String>();
-
-                if (keyType == Id.type.public_key) {
-                    Uri queryUri = KeychainContract.KeyRings.buildPublicKeyRingsUri();
-                    String[] projection = new String[]{
-                            KeychainContract.KeyRings._ID, // 0
-                            KeychainContract.KeyRings.MASTER_KEY_ID, // 1
-                            KeychainContract.UserIds.USER_ID // 2
-                    };
-
-                    // make selection with all entries where _ID is one of the given row ids
-                    String selection = KeychainDatabase.Tables.KEY_RINGS + "." +
-                            KeychainContract.KeyRings._ID + " IN(";
-                    String selectionIDs = "";
-                    for (int i = 0; i < keyRingRowIds.length; i++) {
-                        selectionIDs += "'" + String.valueOf(keyRingRowIds[i]) + "'";
-                        if (i+1 < keyRingRowIds.length)
-                            selectionIDs += ",";
-                    }
-                    selection += selectionIDs + ")";
-
-                    Cursor cursor = activity.getContentResolver().query(queryUri, projection,
-                            selection, null, null);
-
-                    long rowId;
-                    long masterKeyId;
-                    String userId;
-                    try {
-                        while (cursor != null && cursor.moveToNext()) {
-                            rowId = cursor.getLong(0);
-                            masterKeyId = cursor.getLong(1);
-                            userId = cursor.getString(2);
-
-                            Log.d(Constants.TAG, "rowId: " + rowId + ", masterKeyId: " + masterKeyId
-                                    + ", userId: " + userId);
-
-                            // check if a corresponding secret key exists...
-                            Cursor secretCursor = activity.getContentResolver().query(
-                                    KeychainContract.KeyRings.buildSecretKeyRingsByMasterKeyIdUri(String.valueOf(masterKeyId)),
-                                    null, null, null, null
-                            );
-                            if (secretCursor != null && secretCursor.getCount() > 0) {
-                                notDeleted.add(userId);
-                            } else {
-                                // it is okay to delete this key, no secret key found!
-                                ProviderHelper.deletePublicKeyRing(activity, rowId);
-                            }
-                            if (secretCursor != null) {
-                                secretCursor.close();
+            public void onClick(DialogInterface dialog, int which) {
+                Uri queryUri = KeychainContract.KeyRings.buildUnifiedKeyRingsUri();
+                String[] projection = new String[]{
+                        KeychainContract.KeyRings.MASTER_KEY_ID, // 0
+                        KeychainContract.KeyRings.TYPE// 1
+                };
+
+                // make selection with all entries where _ID is one of the given row ids
+                String selection = KeychainDatabase.Tables.KEY_RINGS + "." +
+                        KeychainContract.KeyRings._ID + " IN(";
+                String selectionIDs = "";
+                for (int i = 0; i < keyRingRowIds.length; i++) {
+                    selectionIDs += "'" + String.valueOf(keyRingRowIds[i]) + "'";
+                    if (i + 1 < keyRingRowIds.length)
+                        selectionIDs += ",";
+                }
+                selection += selectionIDs + ")";
+
+                Cursor cursor = activity.getContentResolver().query(queryUri, projection,
+                        selection, null, null);
+
+
+                long masterKeyId;
+                long keyType;
+                boolean isSuccessfullyDeleted;
+                try {
+                    isSuccessfullyDeleted = false;
+                    while (cursor != null && cursor.moveToNext()) {
+                        masterKeyId = cursor.getLong(0);
+                        keyType = cursor.getLong(1);
+
+                        Log.d(Constants.TAG, "masterKeyId: " + masterKeyId
+                                + ", keyType:" + (keyType == KeychainContract.KeyTypes.PUBLIC ? "Public" : "Private"));
+
+
+                        if (keyType == KeychainContract.KeyTypes.SECRET) {
+                            if (checkDeleteSecret.isChecked() || isSingleSelection) {
+                                ProviderHelper.deleteUnifiedKeyRing(activity, String.valueOf(masterKeyId), true);
                             }
-                        }
-                    } finally {
-                        if (cursor != null) {
-                            cursor.close();
+                        } else {
+                            ProviderHelper.deleteUnifiedKeyRing(activity, String.valueOf(masterKeyId), false);
                         }
                     }
-                } else {
-                    for (long keyRowId : keyRingRowIds) {
-                        ProviderHelper.deleteSecretKeyRing(activity, keyRowId);
+
+                    //Check if the selected rows have actually been deleted
+                    cursor = activity.getContentResolver().query(queryUri, projection, selection, null, null);
+                    if (cursor == null || cursor.getCount() == 0 || !checkDeleteSecret.isChecked()) {
+                        isSuccessfullyDeleted = true;
+                    }
+
+                } finally {
+                    if (cursor != null) {
+                        cursor.close();
                     }
+
                 }
 
                 dismiss();
 
-                if (notDeleted.size() > 0) {
-                    Bundle data = new Bundle();
-                    data.putStringArrayList(MESSAGE_NOT_DELETED, notDeleted);
-                    sendMessageToHandler(MESSAGE_OKAY, data);
-                } else {
+                if (isSuccessfullyDeleted) {
                     sendMessageToHandler(MESSAGE_OKAY, null);
+                } else {
+                    sendMessageToHandler(MESSAGE_ERROR, null);
                 }
             }
-        });
+
+        }
+        );
         builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
 
             @Override
@@ -196,7 +224,6 @@ public class DeleteKeyDialogFragment extends DialogFragment {
         if (data != null) {
             msg.setData(data);
         }
-
         try {
             mMessenger.send(msg);
         } catch (RemoteException e) {
@@ -205,4 +232,5 @@ public class DeleteKeyDialogFragment extends DialogFragment {
             Log.w(Constants.TAG, "Messenger is null!", e);
         }
     }
+
 }
\ No newline at end of file
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/FileDialogFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/FileDialogFragment.java
index 39ce63b5f..a4285c8e9 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/FileDialogFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/FileDialogFragment.java
@@ -17,11 +17,6 @@
 
 package org.sufficientlysecure.keychain.ui.dialog;
 
-import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.helper.FileHelper;
-import org.sufficientlysecure.keychain.util.Log;
-
 import android.app.Activity;
 import android.app.AlertDialog;
 import android.app.Dialog;
@@ -33,14 +28,16 @@ import android.os.Message;
 import android.os.Messenger;
 import android.os.RemoteException;
 import android.support.v4.app.DialogFragment;
-import android.text.Html;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.widget.CheckBox;
 import android.widget.EditText;
 import android.widget.TextView;
-
 import com.beardedhen.androidbootstrap.BootstrapButton;
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.helper.FileHelper;
+import org.sufficientlysecure.keychain.util.Log;
 
 public class FileDialogFragment extends DialogFragment {
     private static final String ARG_MESSENGER = "messenger";
@@ -67,7 +64,7 @@ public class FileDialogFragment extends DialogFragment {
      * Creates new instance of this file dialog fragment
      */
     public static FileDialogFragment newInstance(Messenger messenger, String title, String message,
-            String defaultFile, String checkboxText) {
+                                                 String defaultFile, String checkboxText) {
         FileDialogFragment frag = new FileDialogFragment();
         Bundle args = new Bundle();
         args.putParcelable(ARG_MESSENGER, messenger);
@@ -177,34 +174,33 @@ public class FileDialogFragment extends DialogFragment {
     @Override
     public void onActivityResult(int requestCode, int resultCode, Intent data) {
         switch (requestCode & 0xFFFF) {
-        case REQUEST_CODE: {
-            if (resultCode == Activity.RESULT_OK && data != null) {
-                try {
-                    String path = data.getData().getPath();
-                    Log.d(Constants.TAG, "path=" + path);
-
-                    // set filename used in export/import dialogs
-                    setFilename(path);
-                } catch (NullPointerException e) {
-                    Log.e(Constants.TAG, "Nullpointer while retrieving path!", e);
+            case REQUEST_CODE: {
+                if (resultCode == Activity.RESULT_OK && data != null) {
+                    try {
+                        String path = data.getData().getPath();
+                        Log.d(Constants.TAG, "path=" + path);
+
+                        // set filename used in export/import dialogs
+                        setFilename(path);
+                    } catch (NullPointerException e) {
+                        Log.e(Constants.TAG, "Nullpointer while retrieving path!", e);
+                    }
                 }
-            }
 
-            break;
-        }
+                break;
+            }
 
-        default:
-            super.onActivityResult(requestCode, resultCode, data);
+            default:
+                super.onActivityResult(requestCode, resultCode, data);
 
-            break;
+                break;
         }
     }
 
     /**
      * Send message back to handler which is initialized in a activity
-     * 
-     * @param what
-     *            Message integer you want to send
+     *
+     * @param what Message integer you want to send
      */
     private void sendMessageToHandler(Integer what, Bundle data) {
         Message msg = Message.obtain();
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/PassphraseDialogFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/PassphraseDialogFragment.java
index c00232fd1..271219fa3 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/PassphraseDialogFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/PassphraseDialogFragment.java
@@ -17,20 +17,6 @@
 
 package org.sufficientlysecure.keychain.ui.dialog;
 
-import org.spongycastle.openpgp.PGPException;
-import org.spongycastle.openpgp.PGPPrivateKey;
-import org.spongycastle.openpgp.PGPSecretKey;
-import org.spongycastle.openpgp.operator.PBESecretKeyDecryptor;
-import org.spongycastle.openpgp.operator.jcajce.JcePBESecretKeyDecryptorBuilder;
-import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.Id;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
-import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
-import org.sufficientlysecure.keychain.service.PassphraseCacheService;
-import org.sufficientlysecure.keychain.util.Log;
-
 import android.app.Activity;
 import android.app.AlertDialog;
 import android.app.Dialog;
@@ -52,6 +38,19 @@ import android.widget.EditText;
 import android.widget.TextView;
 import android.widget.TextView.OnEditorActionListener;
 import android.widget.Toast;
+import org.spongycastle.openpgp.PGPException;
+import org.spongycastle.openpgp.PGPPrivateKey;
+import org.spongycastle.openpgp.PGPSecretKey;
+import org.spongycastle.openpgp.operator.PBESecretKeyDecryptor;
+import org.spongycastle.openpgp.operator.jcajce.JcePBESecretKeyDecryptorBuilder;
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.Id;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
+import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
+import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.service.PassphraseCacheService;
+import org.sufficientlysecure.keychain.util.Log;
 
 public class PassphraseDialogFragment extends DialogFragment implements OnEditorActionListener {
     private static final String ARG_MESSENGER = "messenger";
@@ -62,20 +61,18 @@ public class PassphraseDialogFragment extends DialogFragment implements OnEditor
 
     private Messenger mMessenger;
     private EditText mPassphraseEditText;
-    private boolean canKB;
+    private boolean mCanKB;
 
     /**
      * Creates new instance of this dialog fragment
-     * 
-     * @param secretKeyId
-     *            secret key id you want to use
-     * @param messenger
-     *            to communicate back after caching the passphrase
+     *
+     * @param secretKeyId secret key id you want to use
+     * @param messenger   to communicate back after caching the passphrase
      * @return
      * @throws PgpGeneralException
      */
     public static PassphraseDialogFragment newInstance(Context context, Messenger messenger,
-            long secretKeyId) throws PgpGeneralException {
+                                                       long secretKeyId) throws PgpGeneralException {
         // check if secret key has a passphrase
         if (!(secretKeyId == Id.key.symmetric || secretKeyId == Id.key.none)) {
             if (!PassphraseCacheService.hasPassphrase(context, secretKeyId)) {
@@ -131,7 +128,7 @@ public class PassphraseDialogFragment extends DialogFragment implements OnEditor
                     }
                 });
                 alert.setCancelable(false);
-                canKB = false;
+                mCanKB = false;
                 return alert.create();
             }
             String userId = PgpKeyHelper.getMainUserIdSafe(activity, secretKey);
@@ -158,7 +155,7 @@ public class PassphraseDialogFragment extends DialogFragment implements OnEditor
                 PGPSecretKey clickSecretKey = secretKey;
 
                 if (clickSecretKey != null) {
-                    while (keyOK == true) {
+                    while (keyOK) {
                         if (clickSecretKey != null) { // check again for loop
                             try {
                                 PBESecretKeyDecryptor keyDecryptor = new JcePBESecretKeyDecryptorBuilder()
@@ -171,7 +168,7 @@ public class PassphraseDialogFragment extends DialogFragment implements OnEditor
                                         Toast.makeText(activity,
                                                 R.string.error_could_not_extract_private_key,
                                                 Toast.LENGTH_SHORT).show();
-                                        
+
                                         sendMessageToHandler(MESSAGE_CANCEL);
                                         return;
                                     } else {
@@ -187,14 +184,14 @@ public class PassphraseDialogFragment extends DialogFragment implements OnEditor
                             } catch (PGPException e) {
                                 Toast.makeText(activity, R.string.wrong_passphrase,
                                         Toast.LENGTH_SHORT).show();
-                                
+
                                 sendMessageToHandler(MESSAGE_CANCEL);
                                 return;
                             }
                         } else {
                             Toast.makeText(activity, R.string.error_could_not_extract_private_key,
                                     Toast.LENGTH_SHORT).show();
-                            
+
                             sendMessageToHandler(MESSAGE_CANCEL);
                             return; // ran out of keys to try
                         }
@@ -207,7 +204,7 @@ public class PassphraseDialogFragment extends DialogFragment implements OnEditor
                 // cache the new passphrase
                 Log.d(Constants.TAG, "Everything okay! Caching entered passphrase");
                 PassphraseCacheService.addCachedPassphrase(activity, keyId, passphrase);
-                if (keyOK == false && clickSecretKey.getKeyID() != keyId) {
+                if (!keyOK && clickSecretKey.getKeyID() != keyId) {
                     PassphraseCacheService.addCachedPassphrase(activity, clickSecretKey.getKeyID(),
                             passphrase);
                 }
@@ -224,14 +221,14 @@ public class PassphraseDialogFragment extends DialogFragment implements OnEditor
             }
         });
 
-        canKB = true;
+        mCanKB = true;
         return alert.create();
     }
 
     @Override
     public void onActivityCreated(Bundle arg0) {
         super.onActivityCreated(arg0);
-        if (canKB) {
+        if (mCanKB) {
             // request focus and open soft keyboard
             mPassphraseEditText.requestFocus();
             getDialog().getWindow().setSoftInputMode(LayoutParams.SOFT_INPUT_STATE_VISIBLE);
@@ -265,9 +262,8 @@ public class PassphraseDialogFragment extends DialogFragment implements OnEditor
 
     /**
      * Send message back to handler which is initialized in a activity
-     * 
-     * @param what
-     *            Message integer you want to send
+     *
+     * @param what Message integer you want to send
      */
     private void sendMessageToHandler(Integer what) {
         Message msg = Message.obtain();
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/ProgressDialogFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/ProgressDialogFragment.java
index 6c62d14e0..132a2ce86 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/ProgressDialogFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/ProgressDialogFragment.java
@@ -26,11 +26,10 @@ import android.content.DialogInterface.OnKeyListener;
 import android.os.Bundle;
 import android.support.v4.app.DialogFragment;
 import android.view.KeyEvent;
-
 import org.sufficientlysecure.keychain.R;
 
 public class ProgressDialogFragment extends DialogFragment {
-    private static final String ARG_MESSAGE_ID = "message_id";
+    private static final String ARG_MESSAGE = "message";
     private static final String ARG_STYLE = "style";
     private static final String ARG_CANCELABLE = "cancelable";
 
@@ -39,16 +38,16 @@ public class ProgressDialogFragment extends DialogFragment {
     /**
      * Creates new instance of this fragment
      *
-     * @param messageId
+     * @param message
      * @param style
      * @param cancelable
      * @return
      */
-    public static ProgressDialogFragment newInstance(int messageId, int style, boolean cancelable,
+    public static ProgressDialogFragment newInstance(String message, int style, boolean cancelable,
                                                      OnCancelListener onCancelListener) {
         ProgressDialogFragment frag = new ProgressDialogFragment();
         Bundle args = new Bundle();
-        args.putInt(ARG_MESSAGE_ID, messageId);
+        args.putString(ARG_MESSAGE, message);
         args.putInt(ARG_STYLE, style);
         args.putBoolean(ARG_CANCELABLE, cancelable);
 
@@ -101,8 +100,9 @@ public class ProgressDialogFragment extends DialogFragment {
     public void onCancel(DialogInterface dialog) {
         super.onCancel(dialog);
 
-        if (this.mOnCancelListener != null)
+        if (this.mOnCancelListener != null) {
             this.mOnCancelListener.onCancel(dialog);
+        }
     }
 
     /**
@@ -117,22 +117,22 @@ public class ProgressDialogFragment extends DialogFragment {
         dialog.setCancelable(false);
         dialog.setCanceledOnTouchOutside(false);
 
-        int messageId = getArguments().getInt(ARG_MESSAGE_ID);
+        String message = getArguments().getString(ARG_MESSAGE);
         int style = getArguments().getInt(ARG_STYLE);
         boolean cancelable = getArguments().getBoolean(ARG_CANCELABLE);
 
-        dialog.setMessage(getString(messageId));
+        dialog.setMessage(message);
         dialog.setProgressStyle(style);
 
         if (cancelable) {
             dialog.setButton(DialogInterface.BUTTON_NEGATIVE,
                     activity.getString(R.string.progress_cancel),
                     new DialogInterface.OnClickListener() {
-                @Override
-                public void onClick(DialogInterface dialog, int which) {
-                    dialog.cancel();
-                }
-            });
+                        @Override
+                        public void onClick(DialogInterface dialog, int which) {
+                            dialog.cancel();
+                        }
+                    });
         }
 
         // Disable the back button
@@ -140,7 +140,6 @@ public class ProgressDialogFragment extends DialogFragment {
 
             @Override
             public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) {
-
                 if (keyCode == KeyEvent.KEYCODE_BACK) {
                     return true;
                 }
@@ -152,4 +151,4 @@ public class ProgressDialogFragment extends DialogFragment {
 
         return dialog;
     }
-}
\ No newline at end of file
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/SetPassphraseDialogFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/SetPassphraseDialogFragment.java
index e406547b3..ae61c1470 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/SetPassphraseDialogFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/SetPassphraseDialogFragment.java
@@ -17,10 +17,6 @@
 
 package org.sufficientlysecure.keychain.ui.dialog;
 
-import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.util.Log;
-
 import android.app.Activity;
 import android.app.AlertDialog;
 import android.app.Dialog;
@@ -40,6 +36,9 @@ import android.widget.EditText;
 import android.widget.TextView;
 import android.widget.TextView.OnEditorActionListener;
 import android.widget.Toast;
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.util.Log;
 
 public class SetPassphraseDialogFragment extends DialogFragment implements OnEditorActionListener {
     private static final String ARG_MESSENGER = "messenger";
@@ -55,11 +54,9 @@ public class SetPassphraseDialogFragment extends DialogFragment implements OnEdi
 
     /**
      * Creates new instance of this dialog fragment
-     * 
-     * @param title
-     *            title of dialog
-     * @param messenger
-     *            to communicate back after setting the passphrase
+     *
+     * @param title     title of dialog
+     * @param messenger to communicate back after setting the passphrase
      * @return
      */
     public static SetPassphraseDialogFragment newInstance(Messenger messenger, int title) {
@@ -96,7 +93,7 @@ public class SetPassphraseDialogFragment extends DialogFragment implements OnEdi
         mPassphraseAgainEditText = (EditText) view.findViewById(R.id.passphrase_passphrase_again);
 
         alert.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
-            
+
             @Override
             public void onClick(DialogInterface dialog, int id) {
                 dismiss();
@@ -130,7 +127,7 @@ public class SetPassphraseDialogFragment extends DialogFragment implements OnEdi
         });
 
         alert.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
-            
+
             @Override
             public void onClick(DialogInterface dialog, int id) {
                 dismiss();
@@ -168,9 +165,8 @@ public class SetPassphraseDialogFragment extends DialogFragment implements OnEdi
 
     /**
      * Send message back to handler which is initialized in a activity
-     * 
-     * @param what
-     *            Message integer you want to send
+     *
+     * @param what Message integer you want to send
      */
     private void sendMessageToHandler(Integer what, Bundle data) {
         Message msg = Message.obtain();
@@ -187,4 +183,4 @@ public class SetPassphraseDialogFragment extends DialogFragment implements OnEdi
             Log.w(Constants.TAG, "Messenger is null!", e);
         }
     }
-}
\ No newline at end of file
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/ShareNfcDialogFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/ShareNfcDialogFragment.java
index b850638a6..741530b1d 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/ShareNfcDialogFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/ShareNfcDialogFragment.java
@@ -17,9 +17,6 @@
 
 package org.sufficientlysecure.keychain.ui.dialog;
 
-import org.sufficientlysecure.htmltextview.HtmlTextView;
-import org.sufficientlysecure.keychain.R;
-
 import android.annotation.TargetApi;
 import android.app.AlertDialog;
 import android.app.Dialog;
@@ -31,6 +28,8 @@ import android.os.Bundle;
 import android.provider.Settings;
 import android.support.v4.app.DialogFragment;
 import android.support.v4.app.FragmentActivity;
+import org.sufficientlysecure.htmltextview.HtmlTextView;
+import org.sufficientlysecure.keychain.R;
 
 @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
 public class ShareNfcDialogFragment extends DialogFragment {
@@ -97,4 +96,4 @@ public class ShareNfcDialogFragment extends DialogFragment {
 
         return alert.create();
     }
-}
\ No newline at end of file
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/ShareQrCodeDialogFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/ShareQrCodeDialogFragment.java
index f26cd35c0..94586810e 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/ShareQrCodeDialogFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/ShareQrCodeDialogFragment.java
@@ -28,7 +28,6 @@ import android.view.View;
 import android.widget.Button;
 import android.widget.ImageView;
 import android.widget.TextView;
-
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
@@ -91,7 +90,7 @@ public class ShareQrCodeDialogFragment extends DialogFragment {
             alert.setPositiveButton(R.string.btn_okay, null);
 
             byte[] fingerprintBlob = ProviderHelper.getFingerprint(getActivity(), dataUri);
-            String fingerprint = PgpKeyHelper.convertFingerprintToHex(fingerprintBlob, false);
+            String fingerprint = PgpKeyHelper.convertFingerprintToHex(fingerprintBlob);
 
             mText.setText(getString(R.string.share_qr_code_dialog_fingerprint_text) + " " + fingerprint);
 
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/FixedListView.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/FixedListView.java
index b9dcd0d25..da29f808a 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/FixedListView.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/FixedListView.java
@@ -24,7 +24,7 @@ import android.widget.ListView;
 /**
  * Automatically calculate height of ListView based on contained items. This enables to put this
  * ListView into a ScrollView without messing up.
- * 
+ * <p/>
  * from
  * http://stackoverflow.com/questions/2419246/how-do-i-create-a-listview-thats-not-in-a-scrollview-
  * or-has-the-scrollview-dis
@@ -52,4 +52,4 @@ public class FixedListView extends ListView {
         super.onMeasure(widthMeasureSpec, expandSpec);
     }
 
-}
\ No newline at end of file
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/FoldableLinearLayout.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/FoldableLinearLayout.java
new file mode 100644
index 000000000..f9a5b92f3
--- /dev/null
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/FoldableLinearLayout.java
@@ -0,0 +1,203 @@
+/*
+ * Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.sufficientlysecure.keychain.ui.widget;
+
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.util.AttributeSet;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.animation.AlphaAnimation;
+import android.view.animation.Animation;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+import com.beardedhen.androidbootstrap.FontAwesomeText;
+import org.sufficientlysecure.keychain.R;
+
+/**
+ * Class representing a LinearLayout that can fold and hide it's content when pressed
+ * To use just add the following to your xml layout
+
+ <org.sufficientlysecure.keychain.ui.widget.FoldableLinearLayout
+     android:layout_width="wrap_content"
+     android:layout_height="wrap_content"
+     custom:foldedLabel="@string/TEXT_TO_DISPLAY_WHEN_FOLDED"
+     custom:unFoldedLabel="@string/TEXT_TO_DISPLAY_WHEN_UNFOLDED"
+     custom:foldedIcon="ICON_NAME_FROM_FontAwesomeText_TO_USE_WHEN_FOLDED"
+     custom:unFoldedIcon="ICON_NAME_FROM_FontAwesomeText_TO_USE_WHEN_UNFOLDED">
+
+    <include layout="@layout/ELEMENTS_TO_BE_FOLDED"/>
+
+ </org.sufficientlysecure.keychain.ui.widget.FoldableLinearLayout>
+
+ */
+public class FoldableLinearLayout extends LinearLayout {
+
+    private FontAwesomeText mFoldableIcon;
+    private boolean mFolded;
+    private boolean mHasMigrated = false;
+    private Integer mShortAnimationDuration = null;
+    private TextView mFoldableTextView = null;
+    private LinearLayout mFoldableContainer = null;
+    private View mFoldableLayout = null;
+
+    private String mFoldedIconName;
+    private String mUnFoldedIconName;
+    private String mFoldedLabel;
+    private String mUnFoldedLabel;
+
+    public FoldableLinearLayout(Context context) {
+        super(context);
+        processAttributes(context, null);
+    }
+
+    public FoldableLinearLayout(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        processAttributes(context, attrs);
+    }
+
+    public FoldableLinearLayout(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs);
+        processAttributes(context, attrs);
+    }
+
+    /**
+     * Load given attributes to inner variables,
+     * @param context
+     * @param attrs
+     */
+    private void processAttributes(Context context, AttributeSet attrs) {
+        if(attrs != null) {
+            TypedArray a = context.obtainStyledAttributes(attrs,
+                    R.styleable.FoldableLinearLayout, 0, 0);
+            mFoldedIconName = a.getString(R.styleable.FoldableLinearLayout_foldedIcon);
+            mUnFoldedIconName = a.getString(R.styleable.FoldableLinearLayout_unFoldedIcon);
+            mFoldedLabel = a.getString(R.styleable.FoldableLinearLayout_foldedLabel);
+            mUnFoldedLabel = a.getString(R.styleable.FoldableLinearLayout_unFoldedLabel);
+            a.recycle();
+        }
+        // If any attribute isn't found then set a default one
+        mFoldedIconName = (mFoldedIconName == null) ? "fa-chevron-right" : mFoldedIconName;
+        mUnFoldedIconName = (mUnFoldedIconName == null) ? "fa-chevron-down" : mUnFoldedIconName;
+        mFoldedLabel = (mFoldedLabel == null) ? context.getString(R.id.none) : mFoldedLabel;
+        mUnFoldedLabel = (mUnFoldedLabel == null) ? context.getString(R.id.none) : mUnFoldedLabel;
+    }
+
+    @Override
+    protected void onFinishInflate() {
+        // if the migration has already happened
+        // there is no need to move any children
+        if(!mHasMigrated) {
+            migrateChildrenToContainer();
+            mHasMigrated = true;
+        }
+
+        initialiseInnerViews();
+
+        super.onFinishInflate();
+    }
+
+    /**
+     * Migrates Child views as declared in xml to the inner foldableContainer
+     */
+    private void migrateChildrenToContainer() {
+        // Collect children of FoldableLinearLayout as declared in XML
+        int childNum = getChildCount();
+        View[] children = new View[childNum];
+
+        for(int i = 0; i < childNum; i++) {
+            children[i] = getChildAt(i);
+        }
+        if(children[0].getId() == R.id.foldableControl) {
+
+        }
+
+        // remove all of them from FoldableLinearLayout
+        detachAllViewsFromParent();
+
+        // Inflate the inner foldable_linearlayout.xml
+        LayoutInflater inflator = (LayoutInflater)getContext().getSystemService(
+                Context.LAYOUT_INFLATER_SERVICE);
+
+        mFoldableLayout = inflator.inflate(R.layout.foldable_linearlayout, this, true);
+        mFoldableContainer = (LinearLayout) mFoldableLayout.findViewById(R.id.foldableContainer);
+
+        // Push previously collected children into foldableContainer.
+        for(int i = 0; i < childNum; i++) {
+            addView(children[i]);
+        }
+    }
+
+    private void initialiseInnerViews() {
+        mFoldableIcon = (FontAwesomeText) mFoldableLayout.findViewById(R.id.foldableIcon);
+        mFoldableIcon.setIcon(mFoldedIconName);
+        mFoldableTextView = (TextView) mFoldableLayout.findViewById(R.id.foldableText);
+        mFoldableTextView.setText(mFoldedLabel);
+
+        // retrieve and cache the system's short animation time
+        mShortAnimationDuration = getResources().getInteger(android.R.integer.config_shortAnimTime);
+
+        LinearLayout foldableControl = (LinearLayout) mFoldableLayout.findViewById(R.id.foldableControl);
+        foldableControl.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                mFolded = !mFolded;
+                if (mFolded) {
+                    mFoldableIcon.setIcon(mUnFoldedIconName);
+                    mFoldableContainer.setVisibility(View.VISIBLE);
+                    AlphaAnimation animation = new AlphaAnimation(0f, 1f);
+                    animation.setDuration(mShortAnimationDuration);
+                    mFoldableContainer.startAnimation(animation);
+                    mFoldableTextView.setText(mUnFoldedLabel);
+
+                } else {
+                    mFoldableIcon.setIcon(mFoldedIconName);
+                    AlphaAnimation animation = new AlphaAnimation(1f, 0f);
+                    animation.setDuration(mShortAnimationDuration);
+                    animation.setAnimationListener(new Animation.AnimationListener() {
+                        @Override
+                        public void onAnimationStart(Animation animation) { }
+
+                        @Override
+                        public void onAnimationEnd(Animation animation) {
+                            // making sure that at the end the container is completely removed from view
+                            mFoldableContainer.setVisibility(View.GONE);
+                        }
+
+                        @Override
+                        public void onAnimationRepeat(Animation animation) { }
+                    });
+                    mFoldableContainer.startAnimation(animation);
+                    mFoldableTextView.setText(mFoldedLabel);
+                }
+            }
+        });
+
+    }
+
+    /**
+     * Adds provided child view to foldableContainer View
+     * @param child
+     */
+    @Override
+    public void addView(View child) {
+        if(mFoldableContainer != null) {
+            mFoldableContainer.addView(child);
+        }
+    }
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/IntegerListPreference.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/IntegerListPreference.java
index bc60b2adf..6e1e4c678 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/IntegerListPreference.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/IntegerListPreference.java
@@ -25,7 +25,7 @@ import android.util.AttributeSet;
  * values should use {@link android.content.SharedPreferences#getInt}. When using XML-declared
  * arrays for entry values, the arrays should be regular string arrays containing valid integer
  * values.
- * 
+ *
  * @author Rodrigo Damazio
  */
 public class IntegerListPreference extends ListPreference {
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/KeyEditor.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/KeyEditor.java
index b1f97babf..0dfc6dc5e 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/KeyEditor.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/KeyEditor.java
@@ -30,7 +30,7 @@ import org.spongycastle.openpgp.PGPSecretKey;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
 import org.sufficientlysecure.keychain.util.Choice;
-
+import android.annotation.TargetApi;
 import android.app.DatePickerDialog;
 import android.app.Dialog;
 import android.content.Context;
@@ -47,8 +47,16 @@ import android.widget.LinearLayout;
 import android.widget.TableLayout;
 import android.widget.TableRow;
 import android.widget.TextView;
-
 import com.beardedhen.androidbootstrap.BootstrapButton;
+import org.spongycastle.openpgp.PGPPublicKey;
+import org.spongycastle.openpgp.PGPSecretKey;
+import org.sufficientlysecure.keychain.Id;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
+import org.sufficientlysecure.keychain.util.Choice;
+
+import java.text.DateFormat;
+import java.util.*;
 
 public class KeyEditor extends LinearLayout implements Editor, OnClickListener {
     private PGPSecretKey mKey;
@@ -85,7 +93,8 @@ public class KeyEditor extends LinearLayout implements Editor, OnClickListener {
 
 
     private int mDatePickerResultCount = 0;
-    private DatePickerDialog.OnDateSetListener mExpiryDateSetListener = new DatePickerDialog.OnDateSetListener() {
+    private DatePickerDialog.OnDateSetListener mExpiryDateSetListener =
+            new DatePickerDialog.OnDateSetListener() {
         public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
             // Note: Ignore results after the first one - android sends multiples.
             if (mDatePickerResultCount++ == 0) {
@@ -139,6 +148,7 @@ public class KeyEditor extends LinearLayout implements Editor, OnClickListener {
         setExpiryDate(null);
 
         mExpiryDateButton.setOnClickListener(new OnClickListener() {
+            @TargetApi(11)
             public void onClick(View v) {
                 GregorianCalendar date = mExpiryDate;
                 if (date == null) {
@@ -169,16 +179,18 @@ public class KeyEditor extends LinearLayout implements Editor, OnClickListener {
                         });
 
                 // setCalendarViewShown() is supported from API 11 onwards.
-                if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.HONEYCOMB)
+                if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.HONEYCOMB) {
                     // Hide calendarView in tablets because of the unix warparound bug.
                     dialog.getDatePicker().setCalendarViewShown(false);
-
+                }
                 if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.HONEYCOMB) {
-                    if ( dialog != null && mCreatedDate != null ) {
-                        dialog.getDatePicker().setMinDate(mCreatedDate.getTime().getTime()+ DateUtils.DAY_IN_MILLIS);
+                    if (dialog != null && mCreatedDate != null) {
+                        dialog.getDatePicker()
+                                .setMinDate(
+                                        mCreatedDate.getTime().getTime() + DateUtils.DAY_IN_MILLIS);
                     } else {
                         //When created date isn't available
-                        dialog.getDatePicker().setMinDate(date.getTime().getTime()+ DateUtils.DAY_IN_MILLIS);
+                        dialog.getDatePicker().setMinDate(date.getTime().getTime() + DateUtils.DAY_IN_MILLIS);
                     }
                 }
 
@@ -208,9 +220,8 @@ public class KeyEditor extends LinearLayout implements Editor, OnClickListener {
         }
 
         mAlgorithm.setText(PgpKeyHelper.getAlgorithmInfo(key));
-        String keyId1Str = PgpKeyHelper.convertKeyIdToHex(key.getKeyID());
-        String keyId2Str = PgpKeyHelper.convertKeyIdToHex(key.getKeyID() >> 32);
-        mKeyId.setText(keyId1Str + " " + keyId2Str);
+        String keyIdStr = PgpKeyHelper.convertKeyIdToHex(key.getKeyID());
+        mKeyId.setText(keyIdStr);
 
         Vector<Choice> choices = new Vector<Choice>();
         boolean isElGamalKey = (key.getPublicKey().getAlgorithm() == PGPPublicKey.ELGAMAL_ENCRYPT);
@@ -353,9 +364,11 @@ public class KeyEditor extends LinearLayout implements Editor, OnClickListener {
 
 class ExpiryDatePickerDialog extends DatePickerDialog {
 
-    public ExpiryDatePickerDialog(Context context, OnDateSetListener callBack, int year, int monthOfYear, int dayOfMonth) {
+    public ExpiryDatePickerDialog(Context context, OnDateSetListener callBack,
+                                  int year, int monthOfYear, int dayOfMonth) {
         super(context, callBack, year, monthOfYear, dayOfMonth);
     }
+
     //Set permanent title.
     public void setTitle(CharSequence title) {
         super.setTitle(getContext().getString(R.string.expiry_date_dialog_title));
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/KeyServerEditor.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/KeyServerEditor.java
index 47238cd56..171763672 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/KeyServerEditor.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/KeyServerEditor.java
@@ -16,8 +16,6 @@
 
 package org.sufficientlysecure.keychain.ui.widget;
 
-import org.sufficientlysecure.keychain.R;
-
 import android.content.Context;
 import android.util.AttributeSet;
 import android.view.View;
@@ -25,8 +23,8 @@ import android.view.View.OnClickListener;
 import android.view.ViewGroup;
 import android.widget.LinearLayout;
 import android.widget.TextView;
-
 import com.beardedhen.androidbootstrap.BootstrapButton;
+import org.sufficientlysecure.keychain.R;
 
 public class KeyServerEditor extends LinearLayout implements Editor, OnClickListener {
     private EditorListener mEditorListener = null;
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/SectionView.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/SectionView.java
index 9758835d2..6c7737e6d 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/SectionView.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/SectionView.java
@@ -48,9 +48,7 @@ import android.view.View.OnClickListener;
 import android.view.ViewGroup;
 import android.widget.LinearLayout;
 import android.widget.TextView;
-
 import com.beardedhen.androidbootstrap.BootstrapButton;
-
 import org.spongycastle.openpgp.PGPSecretKey;
 import org.sufficientlysecure.keychain.Id;
 import org.sufficientlysecure.keychain.R;
@@ -75,10 +73,10 @@ public class SectionView extends LinearLayout implements OnClickListener, Editor
 
     private Choice mNewKeyAlgorithmChoice;
     private int mNewKeySize;
-    private boolean canEdit = true;
     private boolean oldItemDeleted = false;
     private ArrayList<String> mDeletedIDs = new ArrayList<String>();
     private ArrayList<PGPSecretKey> mDeletedKeys = new ArrayList<PGPSecretKey>();
+    private boolean mCanEdit = true;
 
     private ActionBarActivity mActivity;
 
@@ -105,30 +103,32 @@ public class SectionView extends LinearLayout implements OnClickListener, Editor
     public void setType(int type) {
         mType = type;
         switch (type) {
-        case Id.type.user_id: {
-            mTitle.setText(R.string.section_user_ids);
-            break;
-        }
+            case Id.type.user_id: {
+                mTitle.setText(R.string.section_user_ids);
+                break;
+            }
 
-        case Id.type.key: {
-            mTitle.setText(R.string.section_keys);
-            break;
-        }
+            case Id.type.key: {
+                mTitle.setText(R.string.section_keys);
+                break;
+            }
 
-        default: {
-            break;
-        }
+            default: {
+                break;
+            }
         }
     }
 
     public void setCanEdit(boolean bCanEdit) {
-        canEdit = bCanEdit;
-        if (!canEdit) {
+        mCanEdit = bCanEdit;
+        if (!mCanEdit) {
             mPlusButton.setVisibility(View.INVISIBLE);
         }
     }
 
-    /** {@inheritDoc} */
+    /**
+     * {@inheritDoc}
+     */
     @Override
     protected void onFinishInflate() {
         mInflater = (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
@@ -146,7 +146,9 @@ public class SectionView extends LinearLayout implements OnClickListener, Editor
         super.onFinishInflate();
     }
 
-    /** {@inheritDoc} */
+    /**
+     * {@inheritDoc}
+     */
     public void onDeleted(Editor editor, boolean wasNewItem) {
         oldItemDeleted |= !wasNewItem;
         if (oldItemDeleted) {
@@ -262,39 +264,44 @@ public class SectionView extends LinearLayout implements OnClickListener, Editor
         return mList;
     }
 
-    /** {@inheritDoc} */
+    /**
+     * {@inheritDoc}
+     */
     public void onClick(View v) {
-        if (canEdit) {
+        if (mCanEdit) {
             switch (mType) {
-            case Id.type.user_id: {
-                UserIdEditor view = (UserIdEditor) mInflater.inflate(
-                        R.layout.edit_key_user_id_item, mEditors, false);
-                view.setEditorListener(this);
-                view.setValue("", mEditors.getChildCount() == 0, true);
-                mEditors.addView(view);
-                if (mEditorListener != null) {
-                    mEditorListener.onEdited();
+                case Id.type.user_id: {
+                    UserIdEditor view = (UserIdEditor) mInflater.inflate(
+                            R.layout.edit_key_user_id_item, mEditors, false);
+                    view.setEditorListener(this);
+                    view.setValue("", mEditors.getChildCount() == 0, true);
+                    mEditors.addView(view);
+                    if (mEditorListener != null) {
+                        mEditorListener.onEdited();
+                    }
+                    break;
                 }
-                break;
-            }
 
-            case Id.type.key: {
-                CreateKeyDialogFragment mCreateKeyDialogFragment = CreateKeyDialogFragment.newInstance(mEditors.getChildCount());
-                mCreateKeyDialogFragment.setOnAlgorithmSelectedListener(new CreateKeyDialogFragment.OnAlgorithmSelectedListener() {
-                    @Override
-                    public void onAlgorithmSelected(Choice algorithmChoice, int keySize) {
-                        mNewKeyAlgorithmChoice = algorithmChoice;
-                        mNewKeySize = keySize;
-                        createKey();
-                    }
-                });
-                mCreateKeyDialogFragment.show(mActivity.getSupportFragmentManager(), "createKeyDialog");
-                break;
-            }
+                case Id.type.key: {
+                    CreateKeyDialogFragment mCreateKeyDialogFragment =
+                            CreateKeyDialogFragment.newInstance(mEditors.getChildCount());
+                    mCreateKeyDialogFragment
+                            .setOnAlgorithmSelectedListener(
+                                    new CreateKeyDialogFragment.OnAlgorithmSelectedListener() {
+                                        @Override
+                                        public void onAlgorithmSelected(Choice algorithmChoice, int keySize) {
+                                            mNewKeyAlgorithmChoice = algorithmChoice;
+                                            mNewKeySize = keySize;
+                                            createKey();
+                                        }
+                                    });
+                    mCreateKeyDialogFragment.show(mActivity.getSupportFragmentManager(), "createKeyDialog");
+                    break;
+                }
 
-            default: {
-                break;
-            }
+                default: {
+                    break;
+                }
             }
             this.updateEditorsVisible();
         }
@@ -311,7 +318,7 @@ public class SectionView extends LinearLayout implements OnClickListener, Editor
                     mEditors, false);
             view.setEditorListener(this);
             view.setValue(userId, mEditors.getChildCount() == 0, false);
-            view.setCanEdit(canEdit);
+            view.setCanEdit(mCanEdit);
             mEditors.addView(view);
         }
 
@@ -332,7 +339,7 @@ public class SectionView extends LinearLayout implements OnClickListener, Editor
             view.setEditorListener(this);
             boolean isMasterKey = (mEditors.getChildCount() == 0);
             view.setValue(list.get(i), isMasterKey, usages.get(i), newKeys);
-            view.setCanEdit(canEdit);
+            view.setCanEdit(mCanEdit);
             mEditors.addView(view);
         }
 
@@ -367,19 +374,22 @@ public class SectionView extends LinearLayout implements OnClickListener, Editor
         intent.putExtra(KeychainIntentService.EXTRA_DATA, data);
 
         // show progress dialog
-        mGeneratingDialog = ProgressDialogFragment.newInstance(R.string.progress_generating,
-                ProgressDialog.STYLE_SPINNER, true, new DialogInterface.OnCancelListener() {
-            @Override
-            public void onCancel(DialogInterface dialog) {
-                mActivity.stopService(intent);
-            }
-        });
+        mGeneratingDialog = ProgressDialogFragment.newInstance(
+                getResources().getQuantityString(R.plurals.progress_generating, 1),
+                ProgressDialog.STYLE_SPINNER,
+                true,
+                new DialogInterface.OnCancelListener() {
+                    @Override
+                    public void onCancel(DialogInterface dialog) {
+                        mActivity.stopService(intent);
+                    }
+                });
 
-        // Message is received after generating is done in ApgService
+        // Message is received after generating is done in KeychainIntentService
         KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(mActivity,
                 mGeneratingDialog) {
             public void handleMessage(Message message) {
-                // handle messages by standard ApgHandler first
+                // handle messages by standard KeychainIntentServiceHandler first
                 super.handleMessage(message);
 
                 if (message.arg1 == KeychainIntentServiceHandler.MESSAGE_OKAY) {
@@ -390,7 +400,7 @@ public class SectionView extends LinearLayout implements OnClickListener, Editor
                                     .getByteArray(KeychainIntentService.RESULT_NEW_KEY));
                     addGeneratedKeyToView(newKey);
                 }
-            };
+            }
         };
 
         // Create a new Messenger for the communication back
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/UnderlineTextView.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/UnderlineTextView.java
index 752d44f89..937a48e48 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/UnderlineTextView.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/UnderlineTextView.java
@@ -26,7 +26,7 @@ import android.widget.TextView;
 
 /**
  * Copied from StickyListHeaders lib example
- * 
+ *
  * @author Eric Frohnhoefer
  */
 public class UnderlineTextView extends TextView {
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/UserIdEditor.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/UserIdEditor.java
index 8760b72f7..d4b15613a 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/UserIdEditor.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/UserIdEditor.java
@@ -21,19 +21,18 @@ import java.util.regex.Pattern;
 
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
-
 import android.content.Context;
 import android.text.Editable;
 import android.text.TextWatcher;
 import android.util.AttributeSet;
+import android.util.Patterns;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.ViewGroup;
-import android.widget.EditText;
-import android.widget.LinearLayout;
-import android.widget.RadioButton;
-
+import android.widget.*;
 import com.beardedhen.androidbootstrap.BootstrapButton;
+import org.sufficientlysecure.keychain.helper.ContactHelper;
+
 
 public class UserIdEditor extends LinearLayout implements Editor, OnClickListener {
     private EditorListener mEditorListener = null;
@@ -43,21 +42,13 @@ public class UserIdEditor extends LinearLayout implements Editor, OnClickListene
     private String mOriginalID;
     private EditText mName;
     private String mOriginalName;
-    private EditText mEmail;
+    private AutoCompleteTextView mEmail;
     private String mOriginalEmail;
     private EditText mComment;
     private String mOriginalComment;
     private boolean mOriginallyMainUserID;
     private boolean mIsNewId;
 
-    // see http://www.regular-expressions.info/email.html
-    // RFC 2822 if we omit the syntax using double quotes and square brackets
-    // android.util.Patterns.EMAIL_ADDRESS is only available as of Android 2.2+
-    private static final Pattern EMAIL_PATTERN = Pattern
-            .compile(
-                    "[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?",
-                    Pattern.CASE_INSENSITIVE);
-
     public void setCanEdit(boolean bCanEdit) {
         if (!bCanEdit) {
             mDeleteButton.setVisibility(View.INVISIBLE);
@@ -114,11 +105,46 @@ public class UserIdEditor extends LinearLayout implements Editor, OnClickListene
 
         mName = (EditText) findViewById(R.id.name);
         mName.addTextChangedListener(mTextWatcher);
-        mEmail = (EditText) findViewById(R.id.email);
-        mEmail.addTextChangedListener(mTextWatcher);
+        mEmail = (AutoCompleteTextView) findViewById(R.id.email);
         mComment = (EditText) findViewById(R.id.comment);
         mComment.addTextChangedListener(mTextWatcher);
 
+
+        mEmail.setThreshold(1); // Start working from first character
+        mEmail.setAdapter(
+                new ArrayAdapter<String>
+                        (this.getContext(), android.R.layout.simple_dropdown_item_1line,
+                                ContactHelper.getMailAccounts(getContext())
+                        ));
+        mEmail.addTextChangedListener(new TextWatcher(){
+            @Override
+            public void beforeTextChanged(CharSequence charSequence, int i, int i2, int i3) { }
+
+            @Override
+            public void onTextChanged(CharSequence charSequence, int i, int i2, int i3) { }
+
+            @Override
+            public void afterTextChanged(Editable editable) {
+                String email = editable.toString();
+                if (email.length() > 0) {
+                    Matcher emailMatcher = Patterns.EMAIL_ADDRESS.matcher(email);
+                    if (emailMatcher.matches()) {
+                        mEmail.setCompoundDrawablesWithIntrinsicBounds(0, 0,
+                                    android.R.drawable.presence_online, 0);
+                    } else {
+                        mEmail.setCompoundDrawablesWithIntrinsicBounds(0, 0,
+                                    android.R.drawable.presence_offline, 0);
+                    }
+                } else {
+                    // remove drawable if email is empty
+                    mEmail.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
+                }
+                if (mEditorListener != null) {
+                    mEditorListener.onEdited();
+                }
+            }
+        });
+
         super.onFinishInflate();
     }
 
@@ -151,19 +177,11 @@ public class UserIdEditor extends LinearLayout implements Editor, OnClickListene
         setIsMainUserId(isMainID);
     }
 
-    public String getValue() throws InvalidEmailException {
+    public String getValue() {
         String name = ("" + mName.getText()).trim();
         String email = ("" + mEmail.getText()).trim();
         String comment = ("" + mComment.getText()).trim();
 
-        if (email.length() > 0) {
-            Matcher emailMatcher = EMAIL_PATTERN.matcher(email);
-            if (!emailMatcher.matches()) {
-                throw new InvalidEmailException(getContext().getString(R.string.error_invalid_email,
-                        email));
-            }
-        }
-
         String userId = name;
         if (comment.length() > 0) {
             userId += " (" + comment + ")";
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/AlgorithmNames.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/AlgorithmNames.java
index d3c37edc6..d2f4cc003 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/AlgorithmNames.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/AlgorithmNames.java
@@ -17,13 +17,14 @@
 
 package org.sufficientlysecure.keychain.util;
 
-import java.util.HashMap;
+import android.annotation.SuppressLint;
+import android.app.Activity;
 import org.spongycastle.bcpg.HashAlgorithmTags;
 import org.spongycastle.openpgp.PGPEncryptedData;
 import org.sufficientlysecure.keychain.Id;
 import org.sufficientlysecure.keychain.R;
-import android.annotation.SuppressLint;
-import android.app.Activity;
+
+import java.util.HashMap;
 
 @SuppressLint("UseSparseArrays")
 public class AlgorithmNames {
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/Choice.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/Choice.java
index 9e0042c00..1a6184d9c 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/Choice.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/Choice.java
@@ -39,7 +39,7 @@ public class Choice {
     }
 
     @Override
-	public String toString() {
+    public String toString() {
         return mName;
     }
 }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/HkpKeyServer.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/HkpKeyServer.java
index 921d22f21..b987e1533 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/HkpKeyServer.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/HkpKeyServer.java
@@ -18,24 +18,6 @@
 
 package org.sufficientlysecure.keychain.util;
 
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.UnsupportedEncodingException;
-import java.net.HttpURLConnection;
-import java.net.InetAddress;
-import java.net.MalformedURLException;
-import java.net.URL;
-import java.net.URLEncoder;
-import java.net.UnknownHostException;
-import java.util.ArrayList;
-import java.util.GregorianCalendar;
-import java.util.List;
-import java.util.TimeZone;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-import java.util.Locale;
-
 import org.apache.http.HttpEntity;
 import org.apache.http.HttpResponse;
 import org.apache.http.HttpStatus;
@@ -47,19 +29,22 @@ import org.apache.http.client.methods.HttpPost;
 import org.apache.http.impl.client.DefaultHttpClient;
 import org.apache.http.message.BasicNameValuePair;
 import org.apache.http.util.EntityUtils;
+import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.pgp.PgpHelper;
 import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
 import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListEntry;
 
-import android.text.Html;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.UnsupportedEncodingException;
+import java.net.*;
+import java.util.*;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import static org.sufficientlysecure.keychain.ui.adapter.ImportKeysListEntry.getAlgorithmFromId;
 
-/**
- * TODO:
- * rewrite to use machine readable output.
- * <p/>
- * see http://tools.ietf.org/html/draft-shaw-openpgp-hkp-00#section-5
- * https://github.com/openpgp-keychain/openpgp-keychain/issues/259
- */
 public class HkpKeyServer extends KeyServer {
     private static class HttpError extends Exception {
         private static final long serialVersionUID = 1718783705229428893L;
@@ -82,21 +67,86 @@ public class HkpKeyServer extends KeyServer {
     }
 
     private String mHost;
-    private short mPort = 11371;
-
-    // example:
-    // pub 2048R/<a href="/pks/lookup?op=get&search=0x887DF4BE9F5C9090">9F5C9090</a> 2009-08-17 <a
-    // href="/pks/lookup?op=vindex&search=0x887DF4BE9F5C9090">Jörg Runge
-    // &lt;joerg@joergrunge.de&gt;</a>
-    public static Pattern PUB_KEY_LINE = Pattern
-            .compile(
-                    "pub +([0-9]+)([a-z]+)/.*?0x([0-9a-z]+).*? +([0-9-]+) +(.+)[\n\r]+((?:    +.+[\n\r]+)*)",
+    private short mPort;
+
+    /**
+     * pub:%keyid%:%algo%:%keylen%:%creationdate%:%expirationdate%:%flags%
+     * <ul>
+     * <li>%<b>keyid</b>% = this is either the fingerprint or the key ID of the key. Either the 16-digit or 8-digit
+     * key IDs are acceptable, but obviously the fingerprint is best.</li>
+     * <li>%<b>algo</b>% = the algorithm number, (i.e. 1==RSA, 17==DSA, etc).
+     * See <a href="http://tools.ietf.org/html/rfc2440#section-9.1">RFC-2440</a></li>
+     * <li>%<b>keylen</b>% = the key length (i.e. 1024, 2048, 4096, etc.)</li>
+     * <li>%<b>creationdate</b>% = creation date of the key in standard
+     * <a href="http://tools.ietf.org/html/rfc2440#section-9.1">RFC-2440</a> form (i.e. number of seconds since
+     * 1/1/1970 UTC time)</li>
+     * <li>%<b>expirationdate</b>% = expiration date of the key in standard
+     * <a href="http://tools.ietf.org/html/rfc2440#section-9.1">RFC-2440</a> form (i.e. number of seconds since
+     * 1/1/1970 UTC time)</li>
+     * <li>%<b>flags</b>% = letter codes to indicate details of the key, if any. Flags may be in any order. The
+     * meaning of "disabled" is implementation-specific. Note that individual flags may be unimplemented, so
+     * the absence of a given flag does not necessarily mean the absence of the detail.
+     * <ul>
+     * <li>r == revoked</li>
+     * <li>d == disabled</li>
+     * <li>e == expired</li>
+     * </ul>
+     * </li>
+     * </ul>
+     *
+     * @see <a href="http://tools.ietf.org/html/draft-shaw-openpgp-hkp-00#section-5.2">5.2. Machine Readable Indexes</a>
+     * in Internet-Draft OpenPGP HTTP Keyserver Protocol Document
+     */
+    public static final Pattern PUB_KEY_LINE = Pattern
+            .compile("pub:([0-9a-fA-F]+):([0-9]+):([0-9]+):([0-9]+):([0-9]*):([rde]*)[ \n\r]*" // pub line
+                    + "(uid:(.*):([0-9]+):([0-9]*):([rde]*))+", // one or more uid lines
                     Pattern.CASE_INSENSITIVE);
-    public static Pattern USER_ID_LINE = Pattern.compile("^   +(.+)$", Pattern.MULTILINE
-            | Pattern.CASE_INSENSITIVE);
 
-    public HkpKeyServer(String host) {
+    /**
+     * uid:%escaped uid string%:%creationdate%:%expirationdate%:%flags%
+     * <ul>
+     * <li>%<b>escaped uid string</b>% = the user ID string, with HTTP %-escaping for anything that isn't 7-bit
+     * safe as well as for the ":" character.  Any other characters may be escaped, as desired.</li>
+     * <li>%<b>creationdate</b>% = creation date of the key in standard
+     * <a href="http://tools.ietf.org/html/rfc2440#section-9.1">RFC-2440</a> form (i.e. number of seconds since
+     * 1/1/1970 UTC time)</li>
+     * <li>%<b>expirationdate</b>% = expiration date of the key in standard
+     * <a href="http://tools.ietf.org/html/rfc2440#section-9.1">RFC-2440</a> form (i.e. number of seconds since
+     * 1/1/1970 UTC time)</li>
+     * <li>%<b>flags</b>% = letter codes to indicate details of the key, if any. Flags may be in any order. The
+     * meaning of "disabled" is implementation-specific. Note that individual flags may be unimplemented, so
+     * the absence of a given flag does not necessarily mean the absence of the detail.
+     * <ul>
+     * <li>r == revoked</li>
+     * <li>d == disabled</li>
+     * <li>e == expired</li>
+     * </ul>
+     * </li>
+     * </ul>
+     */
+    public static final Pattern UID_LINE = Pattern
+            .compile("uid:(.*):([0-9]+):([0-9]*):([rde]*)",
+                    Pattern.CASE_INSENSITIVE);
+
+    private static final short PORT_DEFAULT = 11371;
+
+    /**
+     * @param hostAndPort may be just
+     *                    "<code>hostname</code>" (eg. "<code>pool.sks-keyservers.net</code>"), then it will
+     *                    connect using {@link #PORT_DEFAULT}. However, port may be specified after colon
+     *                    ("<code>hostname:port</code>", eg. "<code>p80.pool.sks-keyservers.net:80</code>").
+     */
+    public HkpKeyServer(String hostAndPort) {
+        String host = hostAndPort;
+        short port = PORT_DEFAULT;
+        final int colonPosition = hostAndPort.lastIndexOf(':');
+        if (colonPosition > 0) {
+            host = hostAndPort.substring(0, colonPosition);
+            final String portStr = hostAndPort.substring(colonPosition + 1);
+            port = Short.decode(portStr);
+        }
         mHost = host;
+        mPort = port;
     }
 
     public HkpKeyServer(String host, short port) {
@@ -104,7 +154,7 @@ public class HkpKeyServer extends KeyServer {
         mPort = port;
     }
 
-    static private String readAll(InputStream in, String encoding) throws IOException {
+    private static String readAll(InputStream in, String encoding) throws IOException {
         ByteArrayOutputStream raw = new ByteArrayOutputStream();
 
         byte buffer[] = new byte[1 << 16];
@@ -129,6 +179,7 @@ public class HkpKeyServer extends KeyServer {
         for (int i = 0; i < ips.length; ++i) {
             try {
                 String url = "http://" + ips[i].getHostAddress() + ":" + mPort + request;
+                Log.d(Constants.TAG, "hkp keyserver query: " + url);
                 URL realUrl = new URL(url);
                 HttpURLConnection conn = (HttpURLConnection) realUrl.openConnection();
                 conn.setConnectTimeout(5000);
@@ -166,9 +217,9 @@ public class HkpKeyServer extends KeyServer {
         } catch (UnsupportedEncodingException e) {
             return null;
         }
-        String request = "/pks/lookup?op=index&search=" + encodedQuery;
+        String request = "/pks/lookup?op=index&options=mr&search=" + encodedQuery;
 
-        String data = null;
+        String data;
         try {
             data = query(request);
         } catch (HttpError e) {
@@ -186,48 +237,65 @@ public class HkpKeyServer extends KeyServer {
             throw new QueryException("querying server(s) for '" + mHost + "' failed");
         }
 
-        Matcher matcher = PUB_KEY_LINE.matcher(data);
+        final Matcher matcher = PUB_KEY_LINE.matcher(data);
         while (matcher.find()) {
-            ImportKeysListEntry info = new ImportKeysListEntry();
-            info.bitStrength = Integer.parseInt(matcher.group(1));
-            info.algorithm = matcher.group(2);
-            info.hexKeyId = "0x" + matcher.group(3);
-            info.keyId = PgpKeyHelper.convertHexToKeyId(matcher.group(3));
-            String chunks[] = matcher.group(4).split("-");
-
-            GregorianCalendar tmpGreg = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
-            tmpGreg.set(Integer.parseInt(chunks[0]), Integer.parseInt(chunks[1]),
-                    Integer.parseInt(chunks[2]));
-            info.date = tmpGreg.getTime();
-            info.userIds = new ArrayList<String>();
-            if (matcher.group(5).startsWith("*** KEY")) {
-                info.revoked = true;
+            final ImportKeysListEntry entry = new ImportKeysListEntry();
+
+            entry.setBitStrength(Integer.parseInt(matcher.group(3)));
+
+            final int algorithmId = Integer.decode(matcher.group(2));
+            entry.setAlgorithm(getAlgorithmFromId(algorithmId));
+
+            // group 1 contains the full fingerprint (v4) or the long key id if available
+            // see https://bitbucket.org/skskeyserver/sks-keyserver/pull-request/12/fixes-for-machine-readable-indexes/diff
+            // and https://github.com/openpgp-keychain/openpgp-keychain/issues/259#issuecomment-38168176
+            String fingerprintOrKeyId = matcher.group(1);
+            if (fingerprintOrKeyId.length() > 16) {
+                entry.setFingerPrintHex(fingerprintOrKeyId.toLowerCase(Locale.US));
+                entry.setKeyIdHex("0x" + fingerprintOrKeyId.substring(fingerprintOrKeyId.length()
+                        - 16, fingerprintOrKeyId.length()));
             } else {
-                String tmp = matcher.group(5).replaceAll("<.*?>", "");
-                tmp = Html.fromHtml(tmp).toString();
-                info.userIds.add(tmp);
+                // set key id only
+                entry.setKeyIdHex("0x" + fingerprintOrKeyId);
             }
-            if (matcher.group(6).length() > 0) {
-                Matcher matcher2 = USER_ID_LINE.matcher(matcher.group(6));
-                while (matcher2.find()) {
-                    String tmp = matcher2.group(1).replaceAll("<.*?>", "");
-                    tmp = Html.fromHtml(tmp).toString();
-                    info.userIds.add(tmp);
+
+            final long creationDate = Long.parseLong(matcher.group(4));
+            final GregorianCalendar tmpGreg = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
+            tmpGreg.setTimeInMillis(creationDate * 1000);
+            entry.setDate(tmpGreg.getTime());
+
+            entry.setRevoked(matcher.group(6).contains("r"));
+
+            ArrayList<String> userIds = new ArrayList<String>();
+            final String uidLines = matcher.group(7);
+            final Matcher uidMatcher = UID_LINE.matcher(uidLines);
+            while (uidMatcher.find()) {
+                String tmp = uidMatcher.group(1).trim();
+                if (tmp.contains("%")) {
+                    try {
+                        // converts Strings like "Universit%C3%A4t" to a proper encoding form "Universität".
+                        tmp = (URLDecoder.decode(tmp, "UTF8"));
+                    } catch (UnsupportedEncodingException ignored) {
+                        // will never happen, because "UTF8" is supported
+                    }
                 }
+                userIds.add(tmp);
             }
-            results.add(info);
-        }
+            entry.setUserIds(userIds);
 
+            results.add(entry);
+        }
         return results;
     }
 
     @Override
-    public String get(long keyId) throws QueryException {
+    public String get(String keyIdHex) throws QueryException {
         HttpClient client = new DefaultHttpClient();
         try {
-            HttpGet get = new HttpGet("http://" + mHost + ":" + mPort
-                    + "/pks/lookup?op=get&search=0x" + PgpKeyHelper.convertKeyToHex(keyId));
-
+            String query = "http://" + mHost + ":" + mPort +
+                    "/pks/lookup?op=get&options=mr&search=" + keyIdHex;
+            Log.d(Constants.TAG, "hkp keyserver get: " + query);
+            HttpGet get = new HttpGet(query);
             HttpResponse response = client.execute(get);
             if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {
                 throw new QueryException("not found");
@@ -250,13 +318,14 @@ public class HkpKeyServer extends KeyServer {
     }
 
     @Override
-    public void add(String armoredText) throws AddKeyException {
+    public void add(String armoredKey) throws AddKeyException {
         HttpClient client = new DefaultHttpClient();
         try {
-            HttpPost post = new HttpPost("http://" + mHost + ":" + mPort + "/pks/add");
-
+            String query = "http://" + mHost + ":" + mPort + "/pks/add";
+            HttpPost post = new HttpPost(query);
+            Log.d(Constants.TAG, "hkp keyserver add: " + query);
             List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
-            nameValuePairs.add(new BasicNameValuePair("keytext", armoredText));
+            nameValuePairs.add(new BasicNameValuePair("keytext", armoredKey));
             post.setEntity(new UrlEncodedFormEntity(nameValuePairs));
 
             HttpResponse response = client.execute(post);
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/IntentIntegratorSupportV4.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/IntentIntegratorSupportV4.java
index a43c03e3e..b95b3ee6a 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/IntentIntegratorSupportV4.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/IntentIntegratorSupportV4.java
@@ -18,30 +18,28 @@ package org.sufficientlysecure.keychain.util;
 
 import android.content.Intent;
 import android.support.v4.app.Fragment;
-
 import com.google.zxing.integration.android.IntentIntegrator;
 
 /**
  * IntentIntegrator for the V4 Android compatibility package.
- * 
+ *
  * @author Lachezar Dobrev
  */
 public final class IntentIntegratorSupportV4 extends IntentIntegrator {
 
-    private final Fragment fragment;
+    private final Fragment mFragment;
 
     /**
-     * @param fragment
-     *            Fragment to handle activity response.
+     * @param fragment Fragment to handle activity response.
      */
     public IntentIntegratorSupportV4(Fragment fragment) {
         super(fragment.getActivity());
-        this.fragment = fragment;
+        this.mFragment = fragment;
     }
 
     @Override
     protected void startActivityForResult(Intent intent, int code) {
-        fragment.startActivityForResult(intent, code);
+        mFragment.startActivityForResult(intent, code);
     }
 
 }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/IterableIterator.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/IterableIterator.java
index caaa07524..40105df4f 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/IterableIterator.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/IterableIterator.java
@@ -16,13 +16,21 @@
 
 package org.sufficientlysecure.keychain.util;
 
+import java.util.ArrayList;
 import java.util.Iterator;
 
 public class IterableIterator<T> implements Iterable<T> {
     private Iterator<T> mIter;
 
-    public IterableIterator(Iterator<T> iter) {
+    public IterableIterator(Iterator<T> iter, boolean failsafe) {
         mIter = iter;
+        if(failsafe && mIter == null) {
+            // is there a better way?
+            mIter = new ArrayList<T>().iterator();
+        }
+    }
+    public IterableIterator(Iterator<T> iter) {
+        this(iter, false);
     }
 
     public Iterator<T> iterator() {
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/KeyServer.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/KeyServer.java
index 7049820e8..7f70867a5 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/KeyServer.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/KeyServer.java
@@ -18,12 +18,12 @@
 
 package org.sufficientlysecure.keychain.util;
 
-import java.util.List;
-
 import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListEntry;
 
+import java.util.List;
+
 public abstract class KeyServer {
-    static public class QueryException extends Exception {
+    public static class QueryException extends Exception {
         private static final long serialVersionUID = 2703768928624654512L;
 
         public QueryException(String message) {
@@ -31,22 +31,22 @@ public abstract class KeyServer {
         }
     }
 
-    static public class TooManyResponses extends Exception {
+    public static class TooManyResponses extends Exception {
         private static final long serialVersionUID = 2703768928624654513L;
     }
 
-    static public class InsufficientQuery extends Exception {
+    public static class InsufficientQuery extends Exception {
         private static final long serialVersionUID = 2703768928624654514L;
     }
 
-    static public class AddKeyException extends Exception {
+    public static class AddKeyException extends Exception {
         private static final long serialVersionUID = -507574859137295530L;
     }
 
     abstract List<ImportKeysListEntry> search(String query) throws QueryException, TooManyResponses,
             InsufficientQuery;
 
-    abstract String get(long keyId) throws QueryException;
+    abstract String get(String keyIdHex) throws QueryException;
 
-    abstract void add(String armoredText) throws AddKeyException;
+    abstract void add(String armoredKey) throws AddKeyException;
 }
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/KeychainServiceListener.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/KeychainServiceListener.java
new file mode 100644
index 000000000..14b2a2211
--- /dev/null
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/KeychainServiceListener.java
@@ -0,0 +1,18 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.sufficientlysecure.keychain.util;
+
+public interface KeychainServiceListener {
+    boolean hasServiceStopped();
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/Log.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/Log.java
index bcf275c32..f58f1757a 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/Log.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/Log.java
@@ -21,7 +21,6 @@ import org.sufficientlysecure.keychain.Constants;
 
 /**
  * Wraps Android Logging to enable or disable debug output using Constants
- * 
  */
 public final class Log {
 
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/PRNGFixes.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/PRNGFixes.java
index 530a81044..2d8fbcd81 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/PRNGFixes.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/PRNGFixes.java
@@ -14,48 +14,36 @@ import android.os.Build;
 import android.os.Process;
 import android.util.Log;
 
-import java.io.ByteArrayOutputStream;
-import java.io.DataInputStream;
-import java.io.DataOutputStream;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.OutputStream;
-import java.io.UnsupportedEncodingException;
-import java.security.NoSuchAlgorithmException;
-import java.security.Provider;
-import java.security.SecureRandom;
-import java.security.SecureRandomSpi;
-import java.security.Security;
+import java.io.*;
+import java.security.*;
 
 /**
  * Fixes for the output of the default PRNG having low entropy.
- * 
+ * <p/>
  * The fixes need to be applied via {@link #apply()} before any use of Java Cryptography
  * Architecture primitives. A good place to invoke them is in the application's {@code onCreate}.
- * 
+ * <p/>
  * copied from http://android-developers.blogspot.de/2013/08/some-securerandom-thoughts.html
- * 
- * 
+ * <p/>
+ * <p/>
  * More information on these Android bugs:
  * http://blog.k3170makan.com/2013/08/more-details-on-android-jca-prng-flaw.html
  * Paper: "Randomly failed! Weaknesses in Java Pseudo Random Number Generators (PRNGs)"
- * 
- * 
+ * <p/>
+ * <p/>
  * Sep 15, 2013:
  * On some devices /dev/urandom is non-writable!
  * No need to seed /dev/urandom. urandom should have enough seeds from the OS and kernel.
  * Only OpenSSL seeds are broken. See http://emboss.github.io/blog/2013/08/21/openssl-prng-is-not-really-fork-safe
- * 
+ * <p/>
  * see also:
  * https://github.com/k9mail/k-9/commit/dda8f64276d4d29c43f86237cd77819c28f22f21
  * In addition to a couple of custom ROMs linking /dev/urandom to a non-writable
  * random version, now Samsung's SELinux policy also prevents apps from opening
  * /dev/urandom for writing. Since we shouldn't need to write to /dev/urandom anyway
  * we now simply don't.
- *
- *
+ * <p/>
+ * <p/>
  * Sep 17, 2013:
  * Updated from official blogpost:
  * Update: the original code sample below crashed on a small fraction of Android
@@ -66,10 +54,13 @@ public final class PRNGFixes {
     private static final int VERSION_CODE_JELLY_BEAN = 16;
     private static final int VERSION_CODE_JELLY_BEAN_MR2 = 18;
     private static final byte[] BUILD_FINGERPRINT_AND_DEVICE_SERIAL =
-        getBuildFingerprintAndDeviceSerial();
+            getBuildFingerprintAndDeviceSerial();
 
-    /** Hidden constructor to prevent instantiation. */
-    private PRNGFixes() {}
+    /**
+     * Hidden constructor to prevent instantiation.
+     */
+    private PRNGFixes() {
+    }
 
     /**
      * Applies all fixes.
@@ -136,7 +127,7 @@ public final class PRNGFixes {
         if ((secureRandomProviders == null)
                 || (secureRandomProviders.length < 1)
                 || (!LinuxPRNGSecureRandomProvider.class.equals(
-                        secureRandomProviders[0].getClass()))) {
+                secureRandomProviders[0].getClass()))) {
             Security.insertProviderAt(new LinuxPRNGSecureRandomProvider(), 1);
         }
 
@@ -161,7 +152,7 @@ public final class PRNGFixes {
                 rng2.getProvider().getClass())) {
             throw new SecurityException(
                     "SecureRandom.getInstance(\"SHA1PRNG\") backed by wrong"
-                    + " Provider: " + rng2.getProvider().getClass());
+                            + " Provider: " + rng2.getProvider().getClass());
         }
     }
 
@@ -175,7 +166,7 @@ public final class PRNGFixes {
             super("LinuxPRNG",
                     1.0,
                     "A Linux-specific random number provider that uses"
-                        + " /dev/urandom");
+                            + " /dev/urandom");
             // Although /dev/urandom is not a SHA-1 PRNG, some apps
             // explicitly request a SHA1PRNG SecureRandom and we thus need to
             // prevent them from getting the default implementation whose output
@@ -358,4 +349,4 @@ public final class PRNGFixes {
             throw new RuntimeException("UTF-8 encoding not supported");
         }
     }
-}
\ No newline at end of file
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/PausableThreadPoolExecutor.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/PausableThreadPoolExecutor.java
index aa21581c6..377a8d5d6 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/PausableThreadPoolExecutor.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/PausableThreadPoolExecutor.java
@@ -17,11 +17,7 @@
 
 package org.sufficientlysecure.keychain.util;
 
-import java.util.concurrent.BlockingQueue;
-import java.util.concurrent.RejectedExecutionHandler;
-import java.util.concurrent.ThreadFactory;
-import java.util.concurrent.ThreadPoolExecutor;
-import java.util.concurrent.TimeUnit;
+import java.util.concurrent.*;
 import java.util.concurrent.locks.Condition;
 import java.util.concurrent.locks.ReentrantLock;
 
@@ -32,59 +28,63 @@ import java.util.concurrent.locks.ReentrantLock;
 public class PausableThreadPoolExecutor extends ThreadPoolExecutor {
 
     public PausableThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime,
-            TimeUnit unit, BlockingQueue<Runnable> workQueue, RejectedExecutionHandler handler) {
+                                      TimeUnit unit, BlockingQueue<Runnable> workQueue,
+                                      RejectedExecutionHandler handler) {
         super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, handler);
     }
 
     public PausableThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime,
-            TimeUnit unit, BlockingQueue<Runnable> workQueue, ThreadFactory threadFactory,
-            RejectedExecutionHandler handler) {
+                                      TimeUnit unit, BlockingQueue<Runnable> workQueue,
+                                      ThreadFactory threadFactory,
+                                      RejectedExecutionHandler handler) {
         super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, threadFactory, handler);
     }
 
     public PausableThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime,
-            TimeUnit unit, BlockingQueue<Runnable> workQueue, ThreadFactory threadFactory) {
+                                      TimeUnit unit, BlockingQueue<Runnable> workQueue,
+                                      ThreadFactory threadFactory) {
         super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, threadFactory);
     }
 
     public PausableThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime,
-            TimeUnit unit, BlockingQueue<Runnable> workQueue) {
+                                      TimeUnit unit, BlockingQueue<Runnable> workQueue) {
         super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue);
     }
 
-    private boolean isPaused;
-    private ReentrantLock pauseLock = new ReentrantLock();
-    private Condition unpaused = pauseLock.newCondition();
+    private boolean mIsPaused;
+    private ReentrantLock mPauseLock = new ReentrantLock();
+    private Condition mUnPaused = mPauseLock.newCondition();
 
     protected void beforeExecute(Thread t, Runnable r) {
         super.beforeExecute(t, r);
-        pauseLock.lock();
+        mPauseLock.lock();
         try {
-            while (isPaused)
-                unpaused.await();
+            while (mIsPaused) {
+                mUnPaused.await();
+            }
         } catch (InterruptedException ie) {
             t.interrupt();
         } finally {
-            pauseLock.unlock();
+            mPauseLock.unlock();
         }
     }
 
     public void pause() {
-        pauseLock.lock();
+        mPauseLock.lock();
         try {
-            isPaused = true;
+            mIsPaused = true;
         } finally {
-            pauseLock.unlock();
+            mPauseLock.unlock();
         }
     }
 
     public void resume() {
-        pauseLock.lock();
+        mPauseLock.lock();
         try {
-            isPaused = false;
-            unpaused.signalAll();
+            mIsPaused = false;
+            mUnPaused.signalAll();
         } finally {
-            pauseLock.unlock();
+            mPauseLock.unlock();
         }
     }
-}
\ No newline at end of file
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/Primes.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/Primes.java
index f503227a3..28a12bf37 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/Primes.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/Primes.java
@@ -25,147 +25,147 @@ public final class Primes {
     // taken from http://www.ietf.org/rfc/rfc3526.txt
     public static final String P1536 =
             "FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1" +
-            "29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD" +
-            "EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245" +
-            "E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED" +
-            "EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE45B3D" +
-            "C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 FD24CF5F" +
-            "83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D" +
-            "670C354E 4ABC9804 F1746C08 CA237327 FFFFFFFF FFFFFFFF";
+                    "29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD" +
+                    "EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245" +
+                    "E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED" +
+                    "EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE45B3D" +
+                    "C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 FD24CF5F" +
+                    "83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D" +
+                    "670C354E 4ABC9804 F1746C08 CA237327 FFFFFFFF FFFFFFFF";
 
     public static final String P2048 =
             "FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1" +
-            "29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD" +
-            "EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245" +
-            "E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED" +
-            "EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE45B3D" +
-            "C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 FD24CF5F" +
-            "83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D" +
-            "670C354E 4ABC9804 F1746C08 CA18217C 32905E46 2E36CE3B" +
-            "E39E772C 180E8603 9B2783A2 EC07A28F B5C55DF0 6F4C52C9" +
-            "DE2BCBF6 95581718 3995497C EA956AE5 15D22618 98FA0510" +
-            "15728E5A 8AACAA68 FFFFFFFF FFFFFFFF";
+                    "29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD" +
+                    "EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245" +
+                    "E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED" +
+                    "EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE45B3D" +
+                    "C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 FD24CF5F" +
+                    "83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D" +
+                    "670C354E 4ABC9804 F1746C08 CA18217C 32905E46 2E36CE3B" +
+                    "E39E772C 180E8603 9B2783A2 EC07A28F B5C55DF0 6F4C52C9" +
+                    "DE2BCBF6 95581718 3995497C EA956AE5 15D22618 98FA0510" +
+                    "15728E5A 8AACAA68 FFFFFFFF FFFFFFFF";
 
     public static final String P3072 =
             "FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1" +
-            "29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD" +
-            "EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245" +
-            "E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED" +
-            "EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE45B3D" +
-            "C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 FD24CF5F" +
-            "83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D" +
-            "670C354E 4ABC9804 F1746C08 CA18217C 32905E46 2E36CE3B" +
-            "E39E772C 180E8603 9B2783A2 EC07A28F B5C55DF0 6F4C52C9" +
-            "DE2BCBF6 95581718 3995497C EA956AE5 15D22618 98FA0510" +
-            "15728E5A 8AAAC42D AD33170D 04507A33 A85521AB DF1CBA64" +
-            "ECFB8504 58DBEF0A 8AEA7157 5D060C7D B3970F85 A6E1E4C7" +
-            "ABF5AE8C DB0933D7 1E8C94E0 4A25619D CEE3D226 1AD2EE6B" +
-            "F12FFA06 D98A0864 D8760273 3EC86A64 521F2B18 177B200C" +
-            "BBE11757 7A615D6C 770988C0 BAD946E2 08E24FA0 74E5AB31" +
-            "43DB5BFC E0FD108E 4B82D120 A93AD2CA FFFFFFFF FFFFFFFF";
+                    "29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD" +
+                    "EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245" +
+                    "E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED" +
+                    "EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE45B3D" +
+                    "C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 FD24CF5F" +
+                    "83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D" +
+                    "670C354E 4ABC9804 F1746C08 CA18217C 32905E46 2E36CE3B" +
+                    "E39E772C 180E8603 9B2783A2 EC07A28F B5C55DF0 6F4C52C9" +
+                    "DE2BCBF6 95581718 3995497C EA956AE5 15D22618 98FA0510" +
+                    "15728E5A 8AAAC42D AD33170D 04507A33 A85521AB DF1CBA64" +
+                    "ECFB8504 58DBEF0A 8AEA7157 5D060C7D B3970F85 A6E1E4C7" +
+                    "ABF5AE8C DB0933D7 1E8C94E0 4A25619D CEE3D226 1AD2EE6B" +
+                    "F12FFA06 D98A0864 D8760273 3EC86A64 521F2B18 177B200C" +
+                    "BBE11757 7A615D6C 770988C0 BAD946E2 08E24FA0 74E5AB31" +
+                    "43DB5BFC E0FD108E 4B82D120 A93AD2CA FFFFFFFF FFFFFFFF";
 
     public static final String P4096 =
             "FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1" +
-            "29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD" +
-            "EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245" +
-            "E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED" +
-            "EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE45B3D" +
-            "C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 FD24CF5F" +
-            "83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D" +
-            "670C354E 4ABC9804 F1746C08 CA18217C 32905E46 2E36CE3B" +
-            "E39E772C 180E8603 9B2783A2 EC07A28F B5C55DF0 6F4C52C9" +
-            "DE2BCBF6 95581718 3995497C EA956AE5 15D22618 98FA0510" +
-            "15728E5A 8AAAC42D AD33170D 04507A33 A85521AB DF1CBA64" +
-            "ECFB8504 58DBEF0A 8AEA7157 5D060C7D B3970F85 A6E1E4C7" +
-            "ABF5AE8C DB0933D7 1E8C94E0 4A25619D CEE3D226 1AD2EE6B" +
-            "F12FFA06 D98A0864 D8760273 3EC86A64 521F2B18 177B200C" +
-            "BBE11757 7A615D6C 770988C0 BAD946E2 08E24FA0 74E5AB31" +
-            "43DB5BFC E0FD108E 4B82D120 A9210801 1A723C12 A787E6D7" +
-            "88719A10 BDBA5B26 99C32718 6AF4E23C 1A946834 B6150BDA" +
-            "2583E9CA 2AD44CE8 DBBBC2DB 04DE8EF9 2E8EFC14 1FBECAA6" +
-            "287C5947 4E6BC05D 99B2964F A090C3A2 233BA186 515BE7ED" +
-            "1F612970 CEE2D7AF B81BDD76 2170481C D0069127 D5B05AA9" +
-            "93B4EA98 8D8FDDC1 86FFB7DC 90A6C08F 4DF435C9 34063199" +
-            "FFFFFFFF FFFFFFFF";
+                    "29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD" +
+                    "EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245" +
+                    "E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED" +
+                    "EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE45B3D" +
+                    "C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 FD24CF5F" +
+                    "83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D" +
+                    "670C354E 4ABC9804 F1746C08 CA18217C 32905E46 2E36CE3B" +
+                    "E39E772C 180E8603 9B2783A2 EC07A28F B5C55DF0 6F4C52C9" +
+                    "DE2BCBF6 95581718 3995497C EA956AE5 15D22618 98FA0510" +
+                    "15728E5A 8AAAC42D AD33170D 04507A33 A85521AB DF1CBA64" +
+                    "ECFB8504 58DBEF0A 8AEA7157 5D060C7D B3970F85 A6E1E4C7" +
+                    "ABF5AE8C DB0933D7 1E8C94E0 4A25619D CEE3D226 1AD2EE6B" +
+                    "F12FFA06 D98A0864 D8760273 3EC86A64 521F2B18 177B200C" +
+                    "BBE11757 7A615D6C 770988C0 BAD946E2 08E24FA0 74E5AB31" +
+                    "43DB5BFC E0FD108E 4B82D120 A9210801 1A723C12 A787E6D7" +
+                    "88719A10 BDBA5B26 99C32718 6AF4E23C 1A946834 B6150BDA" +
+                    "2583E9CA 2AD44CE8 DBBBC2DB 04DE8EF9 2E8EFC14 1FBECAA6" +
+                    "287C5947 4E6BC05D 99B2964F A090C3A2 233BA186 515BE7ED" +
+                    "1F612970 CEE2D7AF B81BDD76 2170481C D0069127 D5B05AA9" +
+                    "93B4EA98 8D8FDDC1 86FFB7DC 90A6C08F 4DF435C9 34063199" +
+                    "FFFFFFFF FFFFFFFF";
 
     public static final String P6144 =
             "FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1" +
-            "29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD" +
-            "EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245" +
-            "E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED" +
-            "EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE45B3D" +
-            "C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 FD24CF5F" +
-            "83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D" +
-            "670C354E 4ABC9804 F1746C08 CA18217C 32905E46 2E36CE3B" +
-            "E39E772C 180E8603 9B2783A2 EC07A28F B5C55DF0 6F4C52C9" +
-            "DE2BCBF6 95581718 3995497C EA956AE5 15D22618 98FA0510" +
-            "15728E5A 8AAAC42D AD33170D 04507A33 A85521AB DF1CBA64" +
-            "ECFB8504 58DBEF0A 8AEA7157 5D060C7D B3970F85 A6E1E4C7" +
-            "ABF5AE8C DB0933D7 1E8C94E0 4A25619D CEE3D226 1AD2EE6B" +
-            "F12FFA06 D98A0864 D8760273 3EC86A64 521F2B18 177B200C" +
-            "BBE11757 7A615D6C 770988C0 BAD946E2 08E24FA0 74E5AB31" +
-            "43DB5BFC E0FD108E 4B82D120 A9210801 1A723C12 A787E6D7" +
-            "88719A10 BDBA5B26 99C32718 6AF4E23C 1A946834 B6150BDA" +
-            "2583E9CA 2AD44CE8 DBBBC2DB 04DE8EF9 2E8EFC14 1FBECAA6" +
-            "287C5947 4E6BC05D 99B2964F A090C3A2 233BA186 515BE7ED" +
-            "1F612970 CEE2D7AF B81BDD76 2170481C D0069127 D5B05AA9" +
-            "93B4EA98 8D8FDDC1 86FFB7DC 90A6C08F 4DF435C9 34028492" +
-            "36C3FAB4 D27C7026 C1D4DCB2 602646DE C9751E76 3DBA37BD" +
-            "F8FF9406 AD9E530E E5DB382F 413001AE B06A53ED 9027D831" +
-            "179727B0 865A8918 DA3EDBEB CF9B14ED 44CE6CBA CED4BB1B" +
-            "DB7F1447 E6CC254B 33205151 2BD7AF42 6FB8F401 378CD2BF" +
-            "5983CA01 C64B92EC F032EA15 D1721D03 F482D7CE 6E74FEF6" +
-            "D55E702F 46980C82 B5A84031 900B1C9E 59E7C97F BEC7E8F3" +
-            "23A97A7E 36CC88BE 0F1D45B7 FF585AC5 4BD407B2 2B4154AA" +
-            "CC8F6D7E BF48E1D8 14CC5ED2 0F8037E0 A79715EE F29BE328" +
-            "06A1D58B B7C5DA76 F550AA3D 8A1FBFF0 EB19CCB1 A313D55C" +
-            "DA56C9EC 2EF29632 387FE8D7 6E3C0468 043E8F66 3F4860EE" +
-            "12BF2D5B 0B7474D6 E694F91E 6DCC4024 FFFFFFFF FFFFFFFF";
+                    "29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD" +
+                    "EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245" +
+                    "E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED" +
+                    "EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE45B3D" +
+                    "C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 FD24CF5F" +
+                    "83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D" +
+                    "670C354E 4ABC9804 F1746C08 CA18217C 32905E46 2E36CE3B" +
+                    "E39E772C 180E8603 9B2783A2 EC07A28F B5C55DF0 6F4C52C9" +
+                    "DE2BCBF6 95581718 3995497C EA956AE5 15D22618 98FA0510" +
+                    "15728E5A 8AAAC42D AD33170D 04507A33 A85521AB DF1CBA64" +
+                    "ECFB8504 58DBEF0A 8AEA7157 5D060C7D B3970F85 A6E1E4C7" +
+                    "ABF5AE8C DB0933D7 1E8C94E0 4A25619D CEE3D226 1AD2EE6B" +
+                    "F12FFA06 D98A0864 D8760273 3EC86A64 521F2B18 177B200C" +
+                    "BBE11757 7A615D6C 770988C0 BAD946E2 08E24FA0 74E5AB31" +
+                    "43DB5BFC E0FD108E 4B82D120 A9210801 1A723C12 A787E6D7" +
+                    "88719A10 BDBA5B26 99C32718 6AF4E23C 1A946834 B6150BDA" +
+                    "2583E9CA 2AD44CE8 DBBBC2DB 04DE8EF9 2E8EFC14 1FBECAA6" +
+                    "287C5947 4E6BC05D 99B2964F A090C3A2 233BA186 515BE7ED" +
+                    "1F612970 CEE2D7AF B81BDD76 2170481C D0069127 D5B05AA9" +
+                    "93B4EA98 8D8FDDC1 86FFB7DC 90A6C08F 4DF435C9 34028492" +
+                    "36C3FAB4 D27C7026 C1D4DCB2 602646DE C9751E76 3DBA37BD" +
+                    "F8FF9406 AD9E530E E5DB382F 413001AE B06A53ED 9027D831" +
+                    "179727B0 865A8918 DA3EDBEB CF9B14ED 44CE6CBA CED4BB1B" +
+                    "DB7F1447 E6CC254B 33205151 2BD7AF42 6FB8F401 378CD2BF" +
+                    "5983CA01 C64B92EC F032EA15 D1721D03 F482D7CE 6E74FEF6" +
+                    "D55E702F 46980C82 B5A84031 900B1C9E 59E7C97F BEC7E8F3" +
+                    "23A97A7E 36CC88BE 0F1D45B7 FF585AC5 4BD407B2 2B4154AA" +
+                    "CC8F6D7E BF48E1D8 14CC5ED2 0F8037E0 A79715EE F29BE328" +
+                    "06A1D58B B7C5DA76 F550AA3D 8A1FBFF0 EB19CCB1 A313D55C" +
+                    "DA56C9EC 2EF29632 387FE8D7 6E3C0468 043E8F66 3F4860EE" +
+                    "12BF2D5B 0B7474D6 E694F91E 6DCC4024 FFFFFFFF FFFFFFFF";
 
     public static final String P8192 =
             "FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1" +
-            "29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD" +
-            "EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245" +
-            "E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED" +
-            "EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE45B3D" +
-            "C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 FD24CF5F" +
-            "83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D" +
-            "670C354E 4ABC9804 F1746C08 CA18217C 32905E46 2E36CE3B" +
-            "E39E772C 180E8603 9B2783A2 EC07A28F B5C55DF0 6F4C52C9" +
-            "DE2BCBF6 95581718 3995497C EA956AE5 15D22618 98FA0510" +
-            "15728E5A 8AAAC42D AD33170D 04507A33 A85521AB DF1CBA64" +
-            "ECFB8504 58DBEF0A 8AEA7157 5D060C7D B3970F85 A6E1E4C7" +
-            "ABF5AE8C DB0933D7 1E8C94E0 4A25619D CEE3D226 1AD2EE6B" +
-            "F12FFA06 D98A0864 D8760273 3EC86A64 521F2B18 177B200C" +
-            "BBE11757 7A615D6C 770988C0 BAD946E2 08E24FA0 74E5AB31" +
-            "43DB5BFC E0FD108E 4B82D120 A9210801 1A723C12 A787E6D7" +
-            "88719A10 BDBA5B26 99C32718 6AF4E23C 1A946834 B6150BDA" +
-            "2583E9CA 2AD44CE8 DBBBC2DB 04DE8EF9 2E8EFC14 1FBECAA6" +
-            "287C5947 4E6BC05D 99B2964F A090C3A2 233BA186 515BE7ED" +
-            "1F612970 CEE2D7AF B81BDD76 2170481C D0069127 D5B05AA9" +
-            "93B4EA98 8D8FDDC1 86FFB7DC 90A6C08F 4DF435C9 34028492" +
-            "36C3FAB4 D27C7026 C1D4DCB2 602646DE C9751E76 3DBA37BD" +
-            "F8FF9406 AD9E530E E5DB382F 413001AE B06A53ED 9027D831" +
-            "179727B0 865A8918 DA3EDBEB CF9B14ED 44CE6CBA CED4BB1B" +
-            "DB7F1447 E6CC254B 33205151 2BD7AF42 6FB8F401 378CD2BF" +
-            "5983CA01 C64B92EC F032EA15 D1721D03 F482D7CE 6E74FEF6" +
-            "D55E702F 46980C82 B5A84031 900B1C9E 59E7C97F BEC7E8F3" +
-            "23A97A7E 36CC88BE 0F1D45B7 FF585AC5 4BD407B2 2B4154AA" +
-            "CC8F6D7E BF48E1D8 14CC5ED2 0F8037E0 A79715EE F29BE328" +
-            "06A1D58B B7C5DA76 F550AA3D 8A1FBFF0 EB19CCB1 A313D55C" +
-            "DA56C9EC 2EF29632 387FE8D7 6E3C0468 043E8F66 3F4860EE" +
-            "12BF2D5B 0B7474D6 E694F91E 6DBE1159 74A3926F 12FEE5E4" +
-            "38777CB6 A932DF8C D8BEC4D0 73B931BA 3BC832B6 8D9DD300" +
-            "741FA7BF 8AFC47ED 2576F693 6BA42466 3AAB639C 5AE4F568" +
-            "3423B474 2BF1C978 238F16CB E39D652D E3FDB8BE FC848AD9" +
-            "22222E04 A4037C07 13EB57A8 1A23F0C7 3473FC64 6CEA306B" +
-            "4BCBC886 2F8385DD FA9D4B7F A2C087E8 79683303 ED5BDD3A" +
-            "062B3CF5 B3A278A6 6D2A13F8 3F44F82D DF310EE0 74AB6A36" +
-            "4597E899 A0255DC1 64F31CC5 0846851D F9AB4819 5DED7EA1" +
-            "B1D510BD 7EE74D73 FAF36BC3 1ECFA268 359046F4 EB879F92" +
-            "4009438B 481C6CD7 889A002E D5EE382B C9190DA6 FC026E47" +
-            "9558E447 5677E9AA 9E3050E2 765694DF C81F56E8 80B96E71" +
-            "60C980DD 98EDD3DF FFFFFFFF FFFFFFFF";
+                    "29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD" +
+                    "EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245" +
+                    "E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED" +
+                    "EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE45B3D" +
+                    "C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 FD24CF5F" +
+                    "83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D" +
+                    "670C354E 4ABC9804 F1746C08 CA18217C 32905E46 2E36CE3B" +
+                    "E39E772C 180E8603 9B2783A2 EC07A28F B5C55DF0 6F4C52C9" +
+                    "DE2BCBF6 95581718 3995497C EA956AE5 15D22618 98FA0510" +
+                    "15728E5A 8AAAC42D AD33170D 04507A33 A85521AB DF1CBA64" +
+                    "ECFB8504 58DBEF0A 8AEA7157 5D060C7D B3970F85 A6E1E4C7" +
+                    "ABF5AE8C DB0933D7 1E8C94E0 4A25619D CEE3D226 1AD2EE6B" +
+                    "F12FFA06 D98A0864 D8760273 3EC86A64 521F2B18 177B200C" +
+                    "BBE11757 7A615D6C 770988C0 BAD946E2 08E24FA0 74E5AB31" +
+                    "43DB5BFC E0FD108E 4B82D120 A9210801 1A723C12 A787E6D7" +
+                    "88719A10 BDBA5B26 99C32718 6AF4E23C 1A946834 B6150BDA" +
+                    "2583E9CA 2AD44CE8 DBBBC2DB 04DE8EF9 2E8EFC14 1FBECAA6" +
+                    "287C5947 4E6BC05D 99B2964F A090C3A2 233BA186 515BE7ED" +
+                    "1F612970 CEE2D7AF B81BDD76 2170481C D0069127 D5B05AA9" +
+                    "93B4EA98 8D8FDDC1 86FFB7DC 90A6C08F 4DF435C9 34028492" +
+                    "36C3FAB4 D27C7026 C1D4DCB2 602646DE C9751E76 3DBA37BD" +
+                    "F8FF9406 AD9E530E E5DB382F 413001AE B06A53ED 9027D831" +
+                    "179727B0 865A8918 DA3EDBEB CF9B14ED 44CE6CBA CED4BB1B" +
+                    "DB7F1447 E6CC254B 33205151 2BD7AF42 6FB8F401 378CD2BF" +
+                    "5983CA01 C64B92EC F032EA15 D1721D03 F482D7CE 6E74FEF6" +
+                    "D55E702F 46980C82 B5A84031 900B1C9E 59E7C97F BEC7E8F3" +
+                    "23A97A7E 36CC88BE 0F1D45B7 FF585AC5 4BD407B2 2B4154AA" +
+                    "CC8F6D7E BF48E1D8 14CC5ED2 0F8037E0 A79715EE F29BE328" +
+                    "06A1D58B B7C5DA76 F550AA3D 8A1FBFF0 EB19CCB1 A313D55C" +
+                    "DA56C9EC 2EF29632 387FE8D7 6E3C0468 043E8F66 3F4860EE" +
+                    "12BF2D5B 0B7474D6 E694F91E 6DBE1159 74A3926F 12FEE5E4" +
+                    "38777CB6 A932DF8C D8BEC4D0 73B931BA 3BC832B6 8D9DD300" +
+                    "741FA7BF 8AFC47ED 2576F693 6BA42466 3AAB639C 5AE4F568" +
+                    "3423B474 2BF1C978 238F16CB E39D652D E3FDB8BE FC848AD9" +
+                    "22222E04 A4037C07 13EB57A8 1A23F0C7 3473FC64 6CEA306B" +
+                    "4BCBC886 2F8385DD FA9D4B7F A2C087E8 79683303 ED5BDD3A" +
+                    "062B3CF5 B3A278A6 6D2A13F8 3F44F82D DF310EE0 74AB6A36" +
+                    "4597E899 A0255DC1 64F31CC5 0846851D F9AB4819 5DED7EA1" +
+                    "B1D510BD 7EE74D73 FAF36BC3 1ECFA268 359046F4 EB879F92" +
+                    "4009438B 481C6CD7 889A002E D5EE382B C9190DA6 FC026E47" +
+                    "9558E447 5677E9AA 9E3050E2 765694DF C81F56E8 80B96E71" +
+                    "60C980DD 98EDD3DF FFFFFFFF FFFFFFFF";
 
     public static BigInteger getBestPrime(int keySize) {
         String primeString;
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/QrCodeUtils.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/QrCodeUtils.java
index 9e8118e7a..8c3367bea 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/QrCodeUtils.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/QrCodeUtils.java
@@ -18,26 +18,24 @@
 
 package org.sufficientlysecure.keychain.util;
 
-import java.util.Hashtable;
-
-import org.sufficientlysecure.keychain.Constants;
-
 import android.graphics.Bitmap;
 import android.graphics.Color;
-
 import com.google.zxing.BarcodeFormat;
 import com.google.zxing.EncodeHintType;
 import com.google.zxing.WriterException;
 import com.google.zxing.common.BitMatrix;
 import com.google.zxing.qrcode.QRCodeWriter;
 import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
+import org.sufficientlysecure.keychain.Constants;
+
+import java.util.Hashtable;
 
 public class QrCodeUtils {
-    public final static QRCodeWriter QR_CODE_WRITER = new QRCodeWriter();
+    public static final QRCodeWriter QR_CODE_WRITER = new QRCodeWriter();
 
     /**
      * Generate Bitmap with QR Code based on input.
-     * 
+     *
      * @param input
      * @param size
      * @return QR Code as Bitmap