private void initializeSessionsV2(SessionState aliceSessionState, SessionState bobSessionState) { ECKeyPair aliceIdentityKeyPair = Curve.generateKeyPair(); IdentityKeyPair aliceIdentityKey = new IdentityKeyPair(new IdentityKey(aliceIdentityKeyPair.getPublicKey()), aliceIdentityKeyPair.getPrivateKey()); ECKeyPair aliceBaseKey = Curve.generateKeyPair(); ECKeyPair aliceEphemeralKey = Curve.generateKeyPair(); ECKeyPair bobIdentityKeyPair = Curve.generateKeyPair(); IdentityKeyPair bobIdentityKey = new IdentityKeyPair(new IdentityKey(bobIdentityKeyPair.getPublicKey()), bobIdentityKeyPair.getPrivateKey()); ECKeyPair bobBaseKey = Curve.generateKeyPair(); ECKeyPair bobEphemeralKey = bobBaseKey; AliceAxolotlParameters aliceParameters = AliceAxolotlParameters.newBuilder() .setOurIdentityKey(aliceIdentityKey) .setOurBaseKey(aliceBaseKey) .setTheirIdentityKey(bobIdentityKey.getPublicKey()) .setTheirSignedPreKey(bobEphemeralKey.getPublicKey()) .setTheirRatchetKey(bobEphemeralKey.getPublicKey()) .setTheirOneTimePreKey(May <ECPublicKey> .NoValue) .create(); BobAxolotlParameters bobParameters = BobAxolotlParameters.newBuilder() .setOurIdentityKey(bobIdentityKey) .setOurOneTimePreKey(May <ECKeyPair> .NoValue) .setOurRatchetKey(bobEphemeralKey) .setOurSignedPreKey(bobBaseKey) .setTheirBaseKey(aliceBaseKey.getPublicKey()) .setTheirIdentityKey(aliceIdentityKey.getPublicKey()) .create(); RatchetingSession.initializeSession(aliceSessionState, 2, aliceParameters); RatchetingSession.initializeSession(bobSessionState, 2, bobParameters); }
private May <uint> processV3(SessionRecord sessionRecord, PreKeyWhisperMessage message) { if (sessionRecord.hasSessionState(message.getMessageVersion(), message.getBaseKey().serialize())) { //Log.w(TAG, "We've already setup a session for this V3 message, letting bundled message fall through..."); return(May <uint> .NoValue); } ECKeyPair ourSignedPreKey = signedPreKeyStore.LoadSignedPreKey(message.getSignedPreKeyId()).getKeyPair(); BobAxolotlParameters.Builder parameters = BobAxolotlParameters.newBuilder(); parameters.setTheirBaseKey(message.getBaseKey()) .setTheirIdentityKey(message.getIdentityKey()) .setOurIdentityKey(identityKeyStore.GetIdentityKeyPair()) .setOurSignedPreKey(ourSignedPreKey) .setOurRatchetKey(ourSignedPreKey); if (message.getPreKeyId().HasValue) { parameters.setOurOneTimePreKey(new May <ECKeyPair>(preKeyStore.LoadPreKey(message.getPreKeyId().ForceGetValue()).getKeyPair())); } else { parameters.setOurOneTimePreKey(May <ECKeyPair> .NoValue); } if (!sessionRecord.isFresh()) { sessionRecord.archiveCurrentState(); } RatchetingSession.initializeSession(sessionRecord.getSessionState(), message.getMessageVersion(), parameters.create()); sessionRecord.getSessionState().setLocalRegistrationId(identityKeyStore.GetLocalRegistrationId()); sessionRecord.getSessionState().setRemoteRegistrationId(message.getRegistrationId()); sessionRecord.getSessionState().setAliceBaseKey(message.getBaseKey().serialize()); if (message.getPreKeyId().HasValue&& message.getPreKeyId().ForceGetValue() != Medium.MAX_VALUE) { return(message.getPreKeyId()); } else { return(May <uint> .NoValue); } }
private May <uint> processV2(SessionRecord sessionRecord, PreKeyWhisperMessage message) { if (!message.getPreKeyId().HasValue) { throw new InvalidKeyIdException("V2 message requires one time prekey id!"); } if (!preKeyStore.ContainsPreKey(message.getPreKeyId().ForceGetValue()) && sessionStore.ContainsSession(remoteAddress)) { //Log.w(TAG, "We've already processed the prekey part of this V2 session, letting bundled message fall through..."); return(May <uint> .NoValue); //May.absent(); } ECKeyPair ourPreKey = preKeyStore.LoadPreKey(message.getPreKeyId().ForceGetValue()).getKeyPair(); BobAxolotlParameters.Builder parameters = BobAxolotlParameters.newBuilder(); parameters.setOurIdentityKey(identityKeyStore.GetIdentityKeyPair()) .setOurSignedPreKey(ourPreKey) .setOurRatchetKey(ourPreKey) .setOurOneTimePreKey(May <ECKeyPair> .NoValue) //absent .setTheirIdentityKey(message.getIdentityKey()) .setTheirBaseKey(message.getBaseKey()); if (!sessionRecord.isFresh()) { sessionRecord.archiveCurrentState(); } RatchetingSession.initializeSession(sessionRecord.getSessionState(), message.getMessageVersion(), parameters.create()); sessionRecord.getSessionState().setLocalRegistrationId(identityKeyStore.GetLocalRegistrationId()); sessionRecord.getSessionState().setRemoteRegistrationId(message.getRegistrationId()); sessionRecord.getSessionState().setAliceBaseKey(message.getBaseKey().serialize()); if (message.getPreKeyId().ForceGetValue() != Medium.MAX_VALUE) { return(message.getPreKeyId()); } else { return(May <uint> .NoValue); // May.absent(); } }
public void testRatchetingSessionAsBob() { byte[] bobPublic = { 0x05, 0x2c, 0xb4, 0x97, 0x76, 0xb8, 0x77, 0x02, 0x05, 0x74, 0x5a, 0x3a, 0x6e, 0x24, 0xf5, 0x79, 0xcd, 0xb4, 0xba, 0x7a, 0x89, 0x04, 0x10, 0x05, 0x92, 0x8e, 0xbb, 0xad, 0xc9, 0xc0, 0x5a, 0xd4, 0x58 }; byte[] bobPrivate = { 0xa1, 0xca, 0xb4, 0x8f, 0x7c, 0x89, 0x3f, 0xaf, 0xa9, 0x88, 0x0a, 0x28, 0xc3, 0xb4, 0x99, 0x9d, 0x28, 0xd6, 0x32, 0x95, 0x62, 0xd2, 0x7a, 0x4e, 0xa4, 0xe2, 0x2e, 0x9f, 0xf1, 0xbd, 0xd6, 0x5a }; byte[] bobIdentityPublic = { 0x05, 0xf1, 0xf4, 0x38, 0x74, 0xf6, 0x96, 0x69, 0x56, 0xc2, 0xdd, 0x47, 0x3f, 0x8f, 0xa1, 0x5a, 0xde, 0xb7, 0x1d, 0x1c, 0xb9, 0x91, 0xb2, 0x34, 0x16, 0x92, 0x32, 0x4c, 0xef, 0xb1, 0xc5, 0xe6, 0x26 }; byte[] bobIdentityPrivate = { 0x48, 0x75, 0xcc, 0x69, 0xdd, 0xf8, 0xea, 0x07, 0x19, 0xec, 0x94, 0x7d, 0x61, 0x08, 0x11, 0x35, 0x86, 0x8d, 0x5f, 0xd8, 0x01, 0xf0, 0x2c, 0x02, 0x25, 0xe5, 0x16, 0xdf, 0x21, 0x56, 0x60, 0x5e }; byte[] aliceBasePublic = { 0x05, 0x47, 0x2d, 0x1f, 0xb1, 0xa9, 0x86, 0x2c, 0x3a, 0xf6, 0xbe, 0xac, 0xa8, 0x92, 0x02, 0x77, 0xe2, 0xb2, 0x6f, 0x4a, 0x79, 0x21, 0x3e, 0xc7, 0xc9, 0x06, 0xae, 0xb3, 0x5e, 0x03, 0xcf, 0x89, 0x50 }; byte[] aliceEphemeralPublic = { 0x05, 0x6c, 0x3e, 0x0d, 0x1f, 0x52, 0x02, 0x83, 0xef, 0xcc, 0x55, 0xfc, 0xa5, 0xe6, 0x70, 0x75, 0xb9, 0x04, 0x00, 0x7f, 0x18, 0x81, 0xd1, 0x51, 0xaf, 0x76, 0xdf, 0x18, 0xc5, 0x1d, 0x29, 0xd3, 0x4b }; byte[] aliceIdentityPublic = { 0x05, 0xb4, 0xa8, 0x45, 0x56, 0x60, 0xad, 0xa6, 0x5b, 0x40, 0x10, 0x07, 0xf6, 0x15, 0xe6, 0x54, 0x04, 0x17, 0x46, 0x43, 0x2e, 0x33, 0x39, 0xc6, 0x87, 0x51, 0x49, 0xbc, 0xee, 0xfc, 0xb4, 0x2b, 0x4a }; byte[] senderChain = { 0xd2, 0x2f, 0xd5, 0x6d, 0x3f, 0xec, 0x81, 0x9c, 0xf4, 0xc3, 0xd5, 0x0c, 0x56, 0xed, 0xfb, 0x1c, 0x28, 0x0a, 0x1b, 0x31, 0x96, 0x45, 0x37, 0xf1, 0xd1, 0x61, 0xe1, 0xc9, 0x31, 0x48, 0xe3, 0x6b }; IdentityKey bobIdentityKeyPublic = new IdentityKey(bobIdentityPublic, 0); ECPrivateKey bobIdentityKeyPrivate = Curve.decodePrivatePoint(bobIdentityPrivate); IdentityKeyPair bobIdentityKey = new IdentityKeyPair(bobIdentityKeyPublic, bobIdentityKeyPrivate); ECPublicKey bobEphemeralPublicKey = Curve.decodePoint(bobPublic, 0); ECPrivateKey bobEphemeralPrivateKey = Curve.decodePrivatePoint(bobPrivate); ECKeyPair bobEphemeralKey = new ECKeyPair(bobEphemeralPublicKey, bobEphemeralPrivateKey); ECKeyPair bobBaseKey = bobEphemeralKey; ECPublicKey aliceBasePublicKey = Curve.decodePoint(aliceBasePublic, 0); ECPublicKey aliceEphemeralPublicKey = Curve.decodePoint(aliceEphemeralPublic, 0); IdentityKey aliceIdentityPublicKey = new IdentityKey(aliceIdentityPublic, 0); BobAxolotlParameters parameters = BobAxolotlParameters.newBuilder() .setOurIdentityKey(bobIdentityKey) .setOurSignedPreKey(bobBaseKey) .setOurRatchetKey(bobEphemeralKey) .setOurOneTimePreKey(May <ECKeyPair> .NoValue) .setTheirIdentityKey(aliceIdentityPublicKey) .setTheirBaseKey(aliceBasePublicKey) .create(); SessionState session = new SessionState(); RatchetingSession.initializeSession(session, 2, parameters); Assert.AreEqual(session.getLocalIdentityKey(), bobIdentityKey.getPublicKey()); Assert.AreEqual(session.getRemoteIdentityKey(), aliceIdentityPublicKey); CollectionAssert.AreEqual(session.getSenderChainKey().getKey(), senderChain); }