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package com.trilead.ssh2.signature;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.math.BigInteger;
import java.security.InvalidKeyException;
import java.security.KeyFactory;
import java.security.NoSuchAlgorithmException;
import java.security.Signature;
import java.security.SignatureException;
import java.security.interfaces.RSAPrivateKey;
import java.security.interfaces.RSAPublicKey;
import java.security.spec.InvalidKeySpecException;
import java.security.spec.KeySpec;
import java.security.spec.RSAPublicKeySpec;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.UnsupportedEncodingException;
import com.trilead.ssh2.log.Logger;
import com.trilead.ssh2.packets.TypesReader;
import com.trilead.ssh2.packets.TypesWriter;
import android.app.Activity;
import android.content.IntentSender;
import android.content.Intent;
import android.app.PendingIntent;
import org.openintents.openpgp.IOpenPgpService2;
import org.openintents.openpgp.OpenPgpDecryptionResult;
import org.openintents.openpgp.OpenPgpError;
import org.openintents.openpgp.OpenPgpSignatureResult;
import org.openintents.openpgp.util.OpenPgpApi;
import org.openintents.openpgp.util.OpenPgpServiceConnection;
import org.openintents.openpgp.util.OpenPgpUtils;
/**
* TokenRSASHA1Verify.
*
* @author James McKenzie
*/
public class TokenRSASHA1Verify
{
private static final Object lock = new Object();
private static final Logger log = Logger.getLogger (TokenRSASHA1Verify.class);
private static final int pending_intent_code = 28674;
static private Activity activity;
static private OpenPgpServiceConnection mServiceConnection;
static private boolean async_semaphore = false;
static private boolean async_abort = false;
static private Intent async_intent;
public static void open (Activity _activity)
{
activity = _activity;
if (activity == null)
return;
mServiceConnection = new OpenPgpServiceConnection (activity, "org.sufficientlysecure.keychain");
mServiceConnection.bindToService();
}
public static void callback (int requestCode, int resultCode, Intent intent)
{
if (requestCode != pending_intent_code) return;
synchronized (lock) {
if (resultCode == Activity.RESULT_OK) {
async_intent = intent;
async_abort = false;
} else
async_abort = true;
async_semaphore = true;
lock.notify();
}
}
public static byte[] generateSignature (byte[] message, TokenRSAPrivateKey pk) throws IOException
{
byte [] fail = new byte[0];
long key_id = pk.getKeyId();
if ((activity == null) || (mServiceConnection == null)) return fail;
Intent data = new Intent();
data.setAction (OpenPgpApi.ACTION_SSH_AUTH);
data.putExtra (OpenPgpApi.EXTRA_SIGN_KEY_ID, key_id);
InputStream is = new ByteArrayInputStream (message);
OpenPgpApi api = new OpenPgpApi (activity, mServiceConnection.getService());
Intent result = api.executeApi (data, is, null);
int result_code;
do {
result_code = result.getIntExtra (OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_ERROR);
if (result_code == OpenPgpApi.RESULT_CODE_USER_INTERACTION_REQUIRED) {
synchronized (lock) {
async_semaphore = false;
async_abort = true;
PendingIntent pi = result.getParcelableExtra (OpenPgpApi.RESULT_INTENT);
try {
activity.startIntentSenderForResult (pi.getIntentSender(), pending_intent_code, null, 0, 0, 0);
} catch (IntentSender.SendIntentException e) {
return fail;
}
try {
while (async_semaphore == false)
lock.wait();
} catch (InterruptedException e) { }
if (async_abort)
return fail;
data = async_intent;
}
is = new ByteArrayInputStream (message);
result = api.executeApi (data, is, null);
} else
break;
} while (true);
switch (result_code) {
case OpenPgpApi.RESULT_CODE_SUCCESS: {
byte [] output = result.getByteArrayExtra (OpenPgpApi.RESULT_DETACHED_SIGNATURE);
if (output == null)
return fail;
return output;
}
case OpenPgpApi.RESULT_CODE_ERROR: {
//OpenPgpError error = result.getParcelableExtra (OpenPgpApi.RESULT_ERROR);
return fail;
}
}
return fail;
}
public static void close()
{
if (mServiceConnection != null)
mServiceConnection.unbindFromService();
activity = null;
}
}
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