made mSignatureTime optional in CryptoOperationHelper

10 files changed, 80 insertions, 31 deletions

diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/OpenPgpService.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/OpenPgpService.java
index af99f01c9..2568d68b9 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/OpenPgpService.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/OpenPgpService.java
@@ -64,6 +64,7 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
 import java.util.ArrayList;
+import java.util.Date;
 import java.util.HashSet;
 
 public class OpenPgpService extends RemoteService {
@@ -164,7 +165,9 @@ public class OpenPgpService extends RemoteService {
     }
 
     private static PendingIntent getRequiredInputPendingIntent(Context context,
-                                                               Intent data, RequiredInputParcel requiredInput) {
+                                                               Intent data,
+                                                               RequiredInputParcel requiredInput,
+                                                               CryptoInputParcel cryptoInput) {
 
         switch (requiredInput.mType) {
             case NFC_MOVE_KEY_TO_CARD:
@@ -175,6 +178,7 @@ public class OpenPgpService extends RemoteService {
                 // pass params through to activity that it can be returned again later to repeat pgp operation
                 intent.putExtra(NfcOperationActivity.EXTRA_SERVICE_INTENT, data);
                 intent.putExtra(NfcOperationActivity.EXTRA_REQUIRED_INPUT, requiredInput);
+                intent.putExtra(NfcOperationActivity.EXTRA_CRYPTO_INPUT, cryptoInput);
                 return PendingIntent.getActivity(context, 0, intent,
                         PendingIntent.FLAG_CANCEL_CURRENT);
             }
@@ -185,6 +189,7 @@ public class OpenPgpService extends RemoteService {
                 // pass params through to activity that it can be returned again later to repeat pgp operation
                 intent.putExtra(PassphraseDialogActivity.EXTRA_SERVICE_INTENT, data);
                 intent.putExtra(PassphraseDialogActivity.EXTRA_REQUIRED_INPUT, requiredInput);
+                intent.putExtra(PassphraseDialogActivity.EXTRA_CRYPTO_INPUT, cryptoInput);
                 return PendingIntent.getActivity(context, 0, intent,
                         PendingIntent.FLAG_CANCEL_CURRENT);
             }
@@ -279,12 +284,12 @@ public class OpenPgpService extends RemoteService {
 
             CryptoInputParcel inputParcel = CryptoInputParcelCacheService.getCryptoInputParcel(this, data);
             if (inputParcel == null) {
-                inputParcel = new CryptoInputParcel();
+                inputParcel = new CryptoInputParcel(new Date());
             }
             // override passphrase in input parcel if given by API call
             if (data.hasExtra(OpenPgpApi.EXTRA_PASSPHRASE)) {
-                inputParcel = new CryptoInputParcel(inputParcel.getSignatureTime(),
-                        new Passphrase(data.getCharArrayExtra(OpenPgpApi.EXTRA_PASSPHRASE)));
+                inputParcel.mPassphrase =
+                        new Passphrase(data.getCharArrayExtra(OpenPgpApi.EXTRA_PASSPHRASE));
             }
 
             // execute PGP operation!
@@ -294,7 +299,8 @@ public class OpenPgpService extends RemoteService {
             if (pgpResult.isPending()) {
 
                 RequiredInputParcel requiredInput = pgpResult.getRequiredInputParcel();
-                PendingIntent pIntent = getRequiredInputPendingIntent(getBaseContext(), data, requiredInput);
+                PendingIntent pIntent = getRequiredInputPendingIntent(getBaseContext(), data,
+                        requiredInput, pgpResult.mCryptoInputParcel);
 
                 // return PendingIntent to be executed by client
                 Intent result = new Intent();
@@ -434,12 +440,12 @@ public class OpenPgpService extends RemoteService {
 
             CryptoInputParcel inputParcel = CryptoInputParcelCacheService.getCryptoInputParcel(this, data);
             if (inputParcel == null) {
-                inputParcel = new CryptoInputParcel();
+                inputParcel = new CryptoInputParcel(new Date());
             }
             // override passphrase in input parcel if given by API call
             if (data.hasExtra(OpenPgpApi.EXTRA_PASSPHRASE)) {
-                inputParcel = new CryptoInputParcel(inputParcel.getSignatureTime(),
-                        new Passphrase(data.getCharArrayExtra(OpenPgpApi.EXTRA_PASSPHRASE)));
+                inputParcel.mPassphrase =
+                        new Passphrase(data.getCharArrayExtra(OpenPgpApi.EXTRA_PASSPHRASE));
             }
 
             PgpSignEncryptOperation op = new PgpSignEncryptOperation(this, new ProviderHelper(getContext()), null);
@@ -449,7 +455,8 @@ public class OpenPgpService extends RemoteService {
 
             if (pgpResult.isPending()) {
                 RequiredInputParcel requiredInput = pgpResult.getRequiredInputParcel();
-                PendingIntent pIntent = getRequiredInputPendingIntent(getBaseContext(), data, requiredInput);
+                PendingIntent pIntent = getRequiredInputPendingIntent(getBaseContext(), data,
+                        requiredInput, pgpResult.mCryptoInputParcel);
 
                 // return PendingIntent to be executed by client
                 Intent result = new Intent();
@@ -519,8 +526,8 @@ public class OpenPgpService extends RemoteService {
             }
             // override passphrase in input parcel if given by API call
             if (data.hasExtra(OpenPgpApi.EXTRA_PASSPHRASE)) {
-                cryptoInput = new CryptoInputParcel(cryptoInput.getSignatureTime(),
-                        new Passphrase(data.getCharArrayExtra(OpenPgpApi.EXTRA_PASSPHRASE)));
+                cryptoInput.mPassphrase =
+                        new Passphrase(data.getCharArrayExtra(OpenPgpApi.EXTRA_PASSPHRASE));
             }
 
             byte[] detachedSignature = data.getByteArrayExtra(OpenPgpApi.EXTRA_DETACHED_SIGNATURE);
@@ -543,7 +550,8 @@ public class OpenPgpService extends RemoteService {
             if (pgpResult.isPending()) {
                 // prepare and return PendingIntent to be executed by client
                 RequiredInputParcel requiredInput = pgpResult.getRequiredInputParcel();
-                PendingIntent pIntent = getRequiredInputPendingIntent(getBaseContext(), data, requiredInput);
+                PendingIntent pIntent = getRequiredInputPendingIntent(getBaseContext(), data,
+                        requiredInput, pgpResult.mCryptoInputParcel);
 
                 Intent result = new Intent();
                 result.putExtra(OpenPgpApi.RESULT_INTENT, pIntent);
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/input/CryptoInputParcel.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/input/CryptoInputParcel.java
index 9ba9601e5..0d8569fe6 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/input/CryptoInputParcel.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/input/CryptoInputParcel.java
@@ -33,7 +33,9 @@ import java.util.Map;
  */
 public class CryptoInputParcel implements Parcelable {
 
-    final Date mSignatureTime;
+    private Date mSignatureTime;
+    private boolean mHasSignature;
+
     public Passphrase mPassphrase;
     // used to supply an explicit proxy to operations that require it
     // this is not final so it can be added to an existing CryptoInputParcel
@@ -48,24 +50,25 @@ public class CryptoInputParcel implements Parcelable {
     private HashMap<ByteBuffer, byte[]> mCryptoData = new HashMap<>();
 
     public CryptoInputParcel() {
-        mSignatureTime = new Date();
+        mSignatureTime = null;
         mPassphrase = null;
         mCachePassphrase = true;
     }
 
     public CryptoInputParcel(Date signatureTime, Passphrase passphrase) {
+        mHasSignature = true;
         mSignatureTime = signatureTime == null ? new Date() : signatureTime;
         mPassphrase = passphrase;
         mCachePassphrase = true;
     }
 
     public CryptoInputParcel(Passphrase passphrase) {
-        mSignatureTime = new Date();
         mPassphrase = passphrase;
         mCachePassphrase = true;
     }
 
     public CryptoInputParcel(Date signatureTime) {
+        mHasSignature = true;
         mSignatureTime = signatureTime == null ? new Date() : signatureTime;
         mPassphrase = null;
         mCachePassphrase = true;
@@ -76,14 +79,22 @@ public class CryptoInputParcel implements Parcelable {
         mParcelableProxy =  parcelableProxy;
     }
 
-    public CryptoInputParcel(boolean cachePassphrase) {
-        mSignatureTime = new Date();
+    public CryptoInputParcel(Date signatureTime, boolean cachePassphrase) {
+        mHasSignature = true;
+        mSignatureTime = signatureTime == null ? new Date() : signatureTime;
         mPassphrase = null;
         mCachePassphrase = cachePassphrase;
     }
 
+    public CryptoInputParcel(boolean cachePassphrase) {
+        mCachePassphrase = cachePassphrase;
+    }
+
     protected CryptoInputParcel(Parcel source) {
-        mSignatureTime = new Date(source.readLong());
+        mHasSignature = source.readByte() != 0;
+        if (mHasSignature) {
+            mSignatureTime = new Date(source.readLong());
+        }
         mPassphrase = source.readParcelable(getClass().getClassLoader());
         mParcelableProxy = source.readParcelable(getClass().getClassLoader());
         mCachePassphrase = source.readByte() != 0;
@@ -107,7 +118,10 @@ public class CryptoInputParcel implements Parcelable {
 
     @Override
     public void writeToParcel(Parcel dest, int flags) {
-        dest.writeLong(mSignatureTime.getTime());
+        dest.writeByte((byte) (mHasSignature ? 1 : 0));
+        if (mHasSignature) {
+            dest.writeLong(mSignatureTime.getTime());
+        }
         dest.writeParcelable(mPassphrase, 0);
         dest.writeParcelable(mParcelableProxy, 0);
         dest.writeByte((byte) (mCachePassphrase ? 1 : 0));
@@ -123,6 +137,10 @@ public class CryptoInputParcel implements Parcelable {
         mParcelableProxy = parcelableProxy;
     }
 
+    public void addSignatureTime(Date signatureTime) {
+        mSignatureTime = signatureTime;
+    }
+
     public void addCryptoData(byte[] hash, byte[] signedHash) {
         mCryptoData.put(ByteBuffer.wrap(hash), signedHash);
     }
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/CertifyKeyFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/CertifyKeyFragment.java
index 467eab785..65baf0593 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/CertifyKeyFragment.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/CertifyKeyFragment.java
@@ -49,6 +49,7 @@ import org.sufficientlysecure.keychain.provider.KeychainDatabase.Tables;
 import org.sufficientlysecure.keychain.provider.ProviderHelper;
 import org.sufficientlysecure.keychain.service.CertifyActionsParcel;
 import org.sufficientlysecure.keychain.service.CertifyActionsParcel.CertifyAction;
+import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
 import org.sufficientlysecure.keychain.ui.adapter.MultiUserIdsAdapter;
 import org.sufficientlysecure.keychain.ui.base.CachingCryptoOperationFragment;
 import org.sufficientlysecure.keychain.ui.util.Notify;
@@ -57,6 +58,7 @@ import org.sufficientlysecure.keychain.util.Log;
 import org.sufficientlysecure.keychain.util.Preferences;
 
 import java.util.ArrayList;
+import java.util.Date;
 
 public class CertifyKeyFragment
         extends CachingCryptoOperationFragment<CertifyActionsParcel, CertifyResult>
@@ -165,7 +167,7 @@ public class CertifyKeyFragment
                     Notify.create(getActivity(), getString(R.string.select_key_to_certify),
                             Notify.Style.ERROR).show();
                 } else {
-                    cryptoOperation();
+                    cryptoOperation(new CryptoInputParcel(new Date()));
                 }
             }
         });
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/CreateKeyFinalFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/CreateKeyFinalFragment.java
index 65bdca5c4..739eb3e35 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/CreateKeyFinalFragment.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/CreateKeyFinalFragment.java
@@ -18,6 +18,7 @@
 package org.sufficientlysecure.keychain.ui;
 
 
+import java.util.Date;
 import java.util.Iterator;
 
 import android.app.Activity;
@@ -47,6 +48,7 @@ import org.sufficientlysecure.keychain.service.ExportKeyringParcel;
 import org.sufficientlysecure.keychain.service.SaveKeyringParcel;
 import org.sufficientlysecure.keychain.service.SaveKeyringParcel.Algorithm;
 import org.sufficientlysecure.keychain.service.SaveKeyringParcel.ChangeUnlockParcel;
+import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
 import org.sufficientlysecure.keychain.ui.CreateKeyActivity.FragAction;
 import org.sufficientlysecure.keychain.ui.base.CryptoOperationHelper;
 import org.sufficientlysecure.keychain.util.Log;
@@ -393,7 +395,7 @@ public class CreateKeyFinalFragment extends Fragment {
 
 
         mMoveToCardOpHelper = new CryptoOperationHelper<>(2, this, callback, R.string.progress_modify);
-        mMoveToCardOpHelper.cryptoOperation();
+        mMoveToCardOpHelper.cryptoOperation(new CryptoInputParcel(new Date()));
     }
 
     private void uploadKey(final EditKeyResult saveKeyResult) {
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DeleteKeyDialogActivity.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DeleteKeyDialogActivity.java
index 924d62199..1b4083a94 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DeleteKeyDialogActivity.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DeleteKeyDialogActivity.java
@@ -50,6 +50,7 @@ import org.sufficientlysecure.keychain.ui.base.CryptoOperationHelper;
 import org.sufficientlysecure.keychain.ui.dialog.CustomAlertDialogBuilder;
 import org.sufficientlysecure.keychain.util.Log;
 
+import java.util.Date;
 import java.util.HashMap;
 
 public class DeleteKeyDialogActivity extends FragmentActivity {
@@ -134,7 +135,7 @@ public class DeleteKeyDialogActivity extends FragmentActivity {
     }
 
     private void startRevocationOperation() {
-        mRevokeOpHelper.cryptoOperation(new CryptoInputParcel(false));
+        mRevokeOpHelper.cryptoOperation(new CryptoInputParcel(new Date(), false));
     }
 
     private void startDeletionOperation() {
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EditKeyFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EditKeyFragment.java
index 4e9c5a836..4769e68d8 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EditKeyFragment.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EditKeyFragment.java
@@ -68,6 +68,8 @@ import org.sufficientlysecure.keychain.ui.util.Notify;
 import org.sufficientlysecure.keychain.util.Log;
 import org.sufficientlysecure.keychain.util.Passphrase;
 
+import java.util.Date;
+
 public class EditKeyFragment extends QueueingCryptoOperationFragment<SaveKeyringParcel, OperationResult>
         implements LoaderManager.LoaderCallbacks<Cursor> {
 
@@ -151,7 +153,7 @@ public class EditKeyFragment extends QueueingCryptoOperationFragment<SaveKeyring
                         if (mDataUri == null) {
                             returnKeyringParcel();
                         } else {
-                            cryptoOperation(new CryptoInputParcel());
+                            cryptoOperation(new CryptoInputParcel(new Date()));
                         }
                     }
                 }, new OnClickListener() {
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptFilesFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptFilesFragment.java
index 84315860c..3dc93872d 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptFilesFragment.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptFilesFragment.java
@@ -21,6 +21,7 @@ package org.sufficientlysecure.keychain.ui;
 import java.io.File;
 import java.io.IOException;
 import java.util.ArrayList;
+import java.util.Date;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
@@ -57,6 +58,7 @@ import org.sufficientlysecure.keychain.pgp.KeyRing;
 import org.sufficientlysecure.keychain.pgp.PgpConstants;
 import org.sufficientlysecure.keychain.pgp.SignEncryptParcel;
 import org.sufficientlysecure.keychain.provider.TemporaryStorageProvider;
+import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
 import org.sufficientlysecure.keychain.ui.adapter.SpacesItemDecoration;
 import org.sufficientlysecure.keychain.ui.base.CachingCryptoOperationFragment;
 import org.sufficientlysecure.keychain.ui.dialog.DeleteFileDialogFragment;
@@ -279,19 +281,19 @@ public class EncryptFilesFragment
             case R.id.encrypt_save: {
                 hideKeyboard();
                 mAfterEncryptAction = AfterEncryptAction.SAVE;
-                cryptoOperation();
+                cryptoOperation(new CryptoInputParcel(new Date()));
                 break;
             }
             case R.id.encrypt_share: {
                 hideKeyboard();
                 mAfterEncryptAction = AfterEncryptAction.SHARE;
-                cryptoOperation();
+                cryptoOperation(new CryptoInputParcel(new Date()));
                 break;
             }
             case R.id.encrypt_copy: {
                 hideKeyboard();
                 mAfterEncryptAction = AfterEncryptAction.COPY;
-                cryptoOperation();
+                cryptoOperation(new CryptoInputParcel(new Date()));
                 break;
             }
             case R.id.check_use_armor: {
@@ -666,7 +668,7 @@ public class EncryptFilesFragment
                     mOutputUris.add(data.getData());
                     // make sure this is correct at this point
                     mAfterEncryptAction = AfterEncryptAction.SAVE;
-                    cryptoOperation();
+                    cryptoOperation(new CryptoInputParcel(new Date()));
                 }
                 return;
             }
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptTextFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptTextFragment.java
index 7f49b14f8..32257eba5 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptTextFragment.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptTextFragment.java
@@ -40,6 +40,7 @@ import org.sufficientlysecure.keychain.operations.results.SignEncryptResult;
 import org.sufficientlysecure.keychain.pgp.KeyRing;
 import org.sufficientlysecure.keychain.pgp.PgpConstants;
 import org.sufficientlysecure.keychain.pgp.SignEncryptParcel;
+import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
 import org.sufficientlysecure.keychain.ui.base.CachingCryptoOperationFragment;
 import org.sufficientlysecure.keychain.ui.util.Notify;
 import org.sufficientlysecure.keychain.ui.util.Notify.ActionListener;
@@ -48,6 +49,7 @@ import org.sufficientlysecure.keychain.util.Passphrase;
 import org.sufficientlysecure.keychain.util.Preferences;
 import org.sufficientlysecure.keychain.util.ShareHelper;
 
+import java.util.Date;
 import java.util.HashSet;
 import java.util.Set;
 
@@ -168,13 +170,13 @@ public class EncryptTextFragment
             case R.id.encrypt_copy: {
                 hideKeyboard();
                 mShareAfterEncrypt = false;
-                cryptoOperation();
+                cryptoOperation(new CryptoInputParcel(new Date()));
                 break;
             }
             case R.id.encrypt_share: {
                 hideKeyboard();
                 mShareAfterEncrypt = true;
-                cryptoOperation();
+                cryptoOperation(new CryptoInputParcel(new Date()));
                 break;
             }
             default: {
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/NfcOperationActivity.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/NfcOperationActivity.java
index e9066b76c..1584b87ae 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/NfcOperationActivity.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/NfcOperationActivity.java
@@ -33,12 +33,15 @@ import org.sufficientlysecure.keychain.util.Preferences;
 import java.io.IOException;
 import java.nio.ByteBuffer;
 import java.util.Arrays;
+import java.util.Date;
 
 /**
  * This class provides a communication interface to OpenPGP applications on ISO SmartCard compliant
  * NFC devices.
  * <p/>
  * For the full specs, see http://g10code.com/docs/openpgp-card-2.0.pdf
+ * NOTE: If no CryptoInputParcel is passed via EXTRA_CRYPTO_INPUT, the CryptoInputParcel is created
+ * internally and is NOT meant to be used by signing operations before adding signature time
  */
 public class NfcOperationActivity extends BaseNfcActivity {
 
@@ -73,7 +76,8 @@ public class NfcOperationActivity extends BaseNfcActivity {
         if (mInputParcel == null) {
             // for compatibility when used from OpenPgpService
             // (or any place other than CryptoOperationHelper)
-            mInputParcel = new CryptoInputParcel(mRequiredInput.mSignatureTime);
+            // NOTE: This CryptoInputParcel cannot be used for signing without adding signature time
+            mInputParcel = new CryptoInputParcel();
         }
 
         setTitle(R.string.nfc_text);
@@ -131,6 +135,9 @@ public class NfcOperationActivity extends BaseNfcActivity {
                 break;
             }
             case NFC_SIGN: {
+                if (mInputParcel.getSignatureTime() == null) {
+                    mInputParcel.addSignatureTime(new Date());
+                }
                 for (int i = 0; i < mRequiredInput.mInputData.length; i++) {
                     byte[] hash = mRequiredInput.mInputData[i];
                     int algo = mRequiredInput.mSignAlgos[i];
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/PassphraseDialogActivity.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/PassphraseDialogActivity.java
index d68b39fc1..8b482584d 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/PassphraseDialogActivity.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/PassphraseDialogActivity.java
@@ -66,6 +66,8 @@ import org.sufficientlysecure.keychain.util.Preferences;
 /**
  * We can not directly create a dialog on the application context.
  * This activity encapsulates a DialogFragment to emulate a dialog.
+ * NOTE: If no CryptoInputParcel is passed via EXTRA_CRYPTO_INPUT, the CryptoInputParcel is created
+ * internally and is NOT meant to be used by signing operations before adding a signature time
  */
 public class PassphraseDialogActivity extends FragmentActivity {
     public static final String RESULT_CRYPTO_INPUT = "result_data";
@@ -97,6 +99,8 @@ public class PassphraseDialogActivity extends FragmentActivity {
 
         if (mCryptoInputParcel == null) {
             // not all usages of PassphraseActivity are from CryptoInputOperation
+            // NOTE: This CryptoInputParcel cannot be used for signing operations without setting
+            // signature time
             mCryptoInputParcel = new CryptoInputParcel();
         }
 
@@ -123,7 +127,8 @@ public class PassphraseDialogActivity extends FragmentActivity {
                                 SecretKeyType.PASSPHRASE_EMPTY) {
                             // also return passphrase back to activity
                             Intent returnIntent = new Intent();
-                            returnIntent.putExtra(RESULT_CRYPTO_INPUT, new CryptoInputParcel(new Passphrase("")));
+                            mCryptoInputParcel.mPassphrase = new Passphrase("");
+                            returnIntent.putExtra(RESULT_CRYPTO_INPUT, mCryptoInputParcel);
                             setResult(RESULT_OK, returnIntent);
                             finish();
                             return;