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Move session construction and KeyExchangeMessage into libaxolotl.

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1) Add plain two-way key exchange support libaxolotl by moving
   all the KeyExchangeMessage code there.

2) Move the bulk of KeyExchangeProcessor code to libaxolotl
   for setting up sessions based on retrieved prekeys, received
   prekeybundles, or exchanged key exchange messages.
This commit is contained in:
Moxie Marlinspike
2014-04-22 21:31:57 -07:00
parent a1db221caf
commit 72af8b11c2
25 changed files with 565 additions and 476 deletions
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8
src/org/thoughtcrime/securesms/ReceiveKeyActivity.java
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@@ -32,7 +32,6 @@ import android.widget.TextView;
import org.thoughtcrime.securesms.crypto.DecryptingQueue;
import org.thoughtcrime.securesms.crypto.KeyExchangeProcessor;
import org.thoughtcrime.securesms.crypto.protocol.KeyExchangeMessage;
import org.thoughtcrime.securesms.database.DatabaseFactory;
import org.thoughtcrime.securesms.recipients.Recipient;
import org.thoughtcrime.securesms.service.SendReceiveService;
@@ -45,11 +44,12 @@ import org.whispersystems.libaxolotl.InvalidMessageException;
import org.whispersystems.libaxolotl.InvalidVersionException;
import org.whispersystems.libaxolotl.LegacyMessageException;
import org.whispersystems.libaxolotl.protocol.CiphertextMessage;
import org.whispersystems.libaxolotl.protocol.KeyExchangeMessage;
import org.whispersystems.libaxolotl.protocol.PreKeyWhisperMessage;
import org.whispersystems.textsecure.crypto.IdentityKeyParcelable;
import org.whispersystems.textsecure.crypto.MasterSecret;
import org.whispersystems.textsecure.push.IncomingPushMessage;
import org.whispersystems.textsecure.storage.InvalidKeyIdException;
import org.whispersystems.libaxolotl.InvalidKeyIdException;
import org.whispersystems.textsecure.storage.RecipientDevice;
import org.whispersystems.textsecure.util.Base64;
import org.whispersystems.textsecure.util.InvalidNumberException;
@@ -178,7 +178,7 @@ public class ReceiveKeyActivity extends Activity {
} else if (getIntent().getBooleanExtra("is_identity_update", false)) {
this.identityUpdateMessage = new IdentityKey(Base64.decodeWithoutPadding(messageBody), 0);
} else {
this.keyExchangeMessage = new KeyExchangeMessage(messageBody);
this.keyExchangeMessage = new KeyExchangeMessage(Base64.decodeWithoutPadding(messageBody));
}
} catch (IOException e) {
throw new AssertionError(e);
@@ -228,7 +228,7 @@ public class ReceiveKeyActivity extends Activity {
DatabaseFactory.getEncryptingSmsDatabase(ReceiveKeyActivity.this)
.markAsProcessedKeyExchange(messageId);
} catch (InvalidMessageException e) {
} catch (InvalidKeyException e) {
Log.w("ReceiveKeyActivity", e);
DatabaseFactory.getEncryptingSmsDatabase(ReceiveKeyActivity.this)
.markAsCorruptKeyExchange(messageId);