Ejemplo n.º 1
0
        public void TestBadMessageBundle()
        {
            var aliceStore          = new TestInMemoryAxolotlStore();
            var aliceSessionBuilder = new SessionBuilder(aliceStore, BOB_ADDRESS);

            var bobStore = new TestInMemoryAxolotlStore();

            var bobPreKeyPair            = Curve.GenerateKeyPair();
            var bobSignedPreKeyPair      = Curve.GenerateKeyPair();
            var bobSignedPreKeySignature = Curve.CalculateSignature(bobStore.GetIdentityKeyPair().PrivateKey,
                                                                          bobSignedPreKeyPair.PublicKey.Serialize());

            PreKeyBundle bobPreKey = new PreKeyBundle(bobStore.GetLocalRegistrationId(), 1,
                                                      31337, bobPreKeyPair.PublicKey,
                                                      22, bobSignedPreKeyPair.PublicKey, bobSignedPreKeySignature,
                                                      bobStore.GetIdentityKeyPair().PublicKey);

            bobStore.StorePreKey(31337, new PreKeyRecord(bobPreKey.PreKeyId, bobPreKeyPair));
            bobStore.StoreSignedPreKey(22, new SignedPreKeyRecord(22, currentMillis, bobSignedPreKeyPair, bobSignedPreKeySignature));

            aliceSessionBuilder.Process(bobPreKey);

            var originalMessage    = "L'homme est condamné à être libre";
            var aliceSessionCipher = new SessionCipher(aliceStore, BOB_ADDRESS);
            var outgoingMessageOne = aliceSessionCipher.Encrypt (Encoding.UTF8.GetBytes (originalMessage));

            Assert.True(outgoingMessageOne.GetKeyType() == CiphertextMessage.PREKEY_TYPE);

            var goodMessage = outgoingMessageOne.Serialize();
            var badMessage  = new byte[goodMessage.Length];

            Array.Copy(goodMessage, 0, badMessage, 0, badMessage.Length);

            badMessage[badMessage.Length-10] ^= 0x01;

            var incomingMessage  = new PreKeyWhisperMessage(badMessage);
            var bobSessionCipher = new SessionCipher(bobStore, ALICE_ADDRESS);

            var plaintext = new byte[0];

            try {
                plaintext = bobSessionCipher.Decrypt(incomingMessage);
                throw new InvalidOperationException("Decrypt should have failed!");
            } catch (InvalidMessageException e) {
                Assert.Pass ();
            }

            Assert.True(bobStore.ContainsPreKey(31337));

            plaintext = bobSessionCipher.Decrypt(new PreKeyWhisperMessage(goodMessage));

            Assert.True(originalMessage.Equals(Encoding.UTF8.GetString(plaintext)));
            Assert.True(!bobStore.ContainsPreKey(31337));
        }
Ejemplo n.º 2
0
        private void RunInteraction(SessionRecord aliceSessionRecord, SessionRecord bobSessionRecord)
        {
            var aliceStore = new TestInMemoryAxolotlStore();
            var bobStore   = new TestInMemoryAxolotlStore();

            aliceStore.StoreSession(new AxolotlAddress("+14159999999", 1), aliceSessionRecord);
            bobStore.StoreSession(new AxolotlAddress("+14158888888", 1), bobSessionRecord);

            var aliceCipher    = new SessionCipher(aliceStore, new AxolotlAddress("+14159999999", 1));
            var bobCipher      = new SessionCipher(bobStore, new AxolotlAddress("+14158888888", 1));

            var alicePlaintext = Encoding.UTF8.GetBytes ("This is a plaintext message.");
            var message        = aliceCipher.Encrypt(alicePlaintext);
            var bobPlaintext   = bobCipher.Decrypt(new WhisperMessage(message.Serialize()));

            Assert.True(ArrayComparer.Compare(alicePlaintext, bobPlaintext));

            var bobReply = Encoding.UTF8.GetBytes ("This is a message from Bob.");
            var reply         = bobCipher.Encrypt(bobReply);
            var receivedReply = aliceCipher.Decrypt(new WhisperMessage(reply.Serialize()));

            Assert.True(ArrayComparer.Compare(bobReply, receivedReply));

            var aliceCiphertextMessages = new List<CiphertextMessage>();
            var alicePlaintextMessages  = new List<byte[]>();

            for (int i = 0; i < 50; i++) {
                alicePlaintextMessages.Add (Encoding.UTF8.GetBytes (string.Format ("смерть за смерть {0}", i)));
                aliceCiphertextMessages.Add(aliceCipher.Encrypt(Encoding.UTF8.GetBytes (string.Format ("смерть за смерть {0}", i))));
            }

            long seed = CurrentMillis;

            aliceCiphertextMessages.Sort ((x, y) => new Random((int)CurrentMillis + DateTime.UtcNow.Day).Next (-1, 2));
            alicePlaintextMessages.Sort ((x, y) => new Random ((int)CurrentMillis + DateTime.UtcNow.Minute).Next (-1, 2));

            for (int i = 0; i < aliceCiphertextMessages.Count / 2; i++) {
                byte[] receivedPlaintext = bobCipher.Decrypt(new WhisperMessage(aliceCiphertextMessages[i].Serialize()));
                Assert.True(ArrayComparer.Compare(receivedPlaintext, alicePlaintextMessages[i]));
            }

            var bobCiphertextMessages = new List<CiphertextMessage>();
            var bobPlaintextMessages  = new List<byte[]>();

            for (int i=0;i<20;i++) {
                bobPlaintextMessages.Add(Encoding.UTF8.GetBytes (string.Format ("смерть за смерть {0}", i)));
                bobCiphertextMessages.Add(bobCipher.Encrypt(Encoding.UTF8.GetBytes (string.Format ("смерть за смерть {0}", i))));
            }

            seed = CurrentMillis;

            bobCiphertextMessages.Sort ((x, y) => new Random((int)CurrentMillis + DateTime.UtcNow.Day).Next (-1, 2));
            bobPlaintextMessages.Sort ((x, y) => new Random ((int)CurrentMillis + DateTime.UtcNow.Minute).Next (-1, 2));

            for (int i = 0; i < bobCiphertextMessages.Count / 2; i++) {
                byte[] receivedPlaintext = aliceCipher.Decrypt(new WhisperMessage(bobCiphertextMessages[i].Serialize()));
                Assert.True(ArrayComparer.Compare(receivedPlaintext, bobPlaintextMessages[i]));
            }

            for (int i = aliceCiphertextMessages.Count / 2; i < aliceCiphertextMessages.Count; i++) {
                byte[] receivedPlaintext = bobCipher.Decrypt(new WhisperMessage(aliceCiphertextMessages[i].Serialize()));
                Assert.True(ArrayComparer.Compare(receivedPlaintext, alicePlaintextMessages[i]));
            }

            for (int i=bobCiphertextMessages.Count / 2; i < bobCiphertextMessages.Count; i++) {
                byte[] receivedPlaintext = aliceCipher.Decrypt(new WhisperMessage(bobCiphertextMessages[i].Serialize()));
                Assert.True(ArrayComparer.Compare(receivedPlaintext, bobPlaintextMessages[i]));
            }
        }
Ejemplo n.º 3
0
        public void TestBadSignedPreKeySignature()
        {
            var aliceStore          = new TestInMemoryAxolotlStore();
            var aliceSessionBuilder = new SessionBuilder(aliceStore, BOB_ADDRESS);

            IIdentityKeyStore bobIdentityKeyStore = new TestInMemoryIdentityKeyStore();

            ECKeyPair bobPreKeyPair            = Curve.GenerateKeyPair();
            ECKeyPair bobSignedPreKeyPair      = Curve.GenerateKeyPair();
            byte[]    bobSignedPreKeySignature = Curve.CalculateSignature(bobIdentityKeyStore.GetIdentityKeyPair().PrivateKey,
                                                                          bobSignedPreKeyPair.PublicKey.Serialize());

            for (int i = 0; i < bobSignedPreKeySignature.Length * 8; i++)
            {
                var modifiedSignature = new byte[bobSignedPreKeySignature.Length];

                Array.Copy (bobSignedPreKeySignature, 0, modifiedSignature, 0, modifiedSignature.Length);

                modifiedSignature[i/8] ^= (byte)(0x01 << (i % 8));

                PreKeyBundle bobPreKey = new PreKeyBundle(bobIdentityKeyStore.GetLocalRegistrationId(), 1,
                                                          31337, bobPreKeyPair.PublicKey,
                                                          22, bobSignedPreKeyPair.PublicKey, modifiedSignature,
                                                          bobIdentityKeyStore.GetIdentityKeyPair().PublicKey);

                try {
                    aliceSessionBuilder.Process(bobPreKey);
                    throw new InvalidOperationException("Accepted modified device key signature!");
                } catch (InvalidKeyException ike) {
                    Assert.Pass();
                }
            }
        }
Ejemplo n.º 4
0
        public void TestSimultaneousKeyExchange()
        {
            var aliceStore          = new TestInMemoryAxolotlStore();
            var aliceSessionBuilder = new SessionBuilder(aliceStore, BOB_ADDRESS);

            var bobStore          = new TestInMemoryAxolotlStore();
            var bobSessionBuilder = new SessionBuilder(bobStore, ALICE_ADDRESS);

            var aliceKeyExchange = aliceSessionBuilder.Process();
            var bobKeyExchange   = bobSessionBuilder.Process();

            Assert.True(aliceKeyExchange != null);
            Assert.True(bobKeyExchange != null);

            var aliceResponse = aliceSessionBuilder.Process(bobKeyExchange);
            var bobResponse   = bobSessionBuilder.Process(aliceKeyExchange);

            Assert.True(aliceResponse != null);
            Assert.True(bobResponse != null);

            var aliceAck = aliceSessionBuilder.Process(bobResponse);
            var bobAck   = bobSessionBuilder.Process(aliceResponse);

            Assert.True(aliceAck == null);
            Assert.True(bobAck == null);

            RunInteraction(aliceStore, bobStore);
        }
Ejemplo n.º 5
0
        public void TestRepeatBundleMessageV3()
        {
            var aliceStore          = new TestInMemoryAxolotlStore();
            var aliceSessionBuilder = new SessionBuilder(aliceStore, BOB_ADDRESS);

            var bobStore = new TestInMemoryAxolotlStore();

            var bobPreKeyPair            = Curve.GenerateKeyPair();
            var bobSignedPreKeyPair      = Curve.GenerateKeyPair();
            var bobSignedPreKeySignature = Curve.CalculateSignature(bobStore.GetIdentityKeyPair().PrivateKey,
                                                                          bobSignedPreKeyPair.PublicKey.Serialize());

            PreKeyBundle bobPreKey = new PreKeyBundle(bobStore.GetLocalRegistrationId(), 1,
                                                      31337, bobPreKeyPair.PublicKey,
                                                      22, bobSignedPreKeyPair.PublicKey, bobSignedPreKeySignature,
                                                      bobStore.GetIdentityKeyPair().PublicKey);

            bobStore.StorePreKey(31337, new PreKeyRecord(bobPreKey.PreKeyId, bobPreKeyPair));
            bobStore.StoreSignedPreKey(22, new SignedPreKeyRecord(22, currentMillis, bobSignedPreKeyPair, bobSignedPreKeySignature));

            aliceSessionBuilder.Process(bobPreKey);

            var originalMessage    = "L'homme est condamné à être libre";
            var aliceSessionCipher = new SessionCipher(aliceStore, BOB_ADDRESS);
            var outgoingMessageOne = aliceSessionCipher.Encrypt (Encoding.UTF8.GetBytes (originalMessage));
            var outgoingMessageTwo = aliceSessionCipher.Encrypt(Encoding.UTF8.GetBytes (originalMessage));

            Assert.True(outgoingMessageOne.GetKeyType() == CiphertextMessage.PREKEY_TYPE);
            Assert.True(outgoingMessageTwo.GetKeyType() == CiphertextMessage.PREKEY_TYPE);

            var incomingMessage = new PreKeyWhisperMessage(outgoingMessageOne.Serialize());

            var bobSessionCipher = new SessionCipher(bobStore, ALICE_ADDRESS);

            var plaintext = bobSessionCipher.Decrypt(incomingMessage);
            Assert.True(originalMessage.Equals(Encoding.UTF8.GetString(plaintext)));

            var bobOutgoingMessage = bobSessionCipher.Encrypt (Encoding.UTF8.GetBytes (originalMessage));

            var alicePlaintext = aliceSessionCipher.Decrypt(new WhisperMessage(bobOutgoingMessage.Serialize()));
            Assert.True(originalMessage.Equals(Encoding.UTF8.GetString(alicePlaintext)));

            // The test

            var incomingMessageTwo = new PreKeyWhisperMessage(outgoingMessageTwo.Serialize());

            plaintext = bobSessionCipher.Decrypt(new PreKeyWhisperMessage(incomingMessageTwo.Serialize()));
            Assert.True(originalMessage.Equals(Encoding.UTF8.GetString(plaintext)));

            bobOutgoingMessage = bobSessionCipher.Encrypt (Encoding.UTF8.GetBytes (originalMessage));
            alicePlaintext = aliceSessionCipher.Decrypt(new WhisperMessage(bobOutgoingMessage.Serialize()));
            Assert.True(originalMessage.Equals(Encoding.UTF8.GetString (alicePlaintext)));
        }
Ejemplo n.º 6
0
        public void TestOptionalOneTimePreKey()
        {
            var aliceStore          = new TestInMemoryAxolotlStore();
            var aliceSessionBuilder = new SessionBuilder(aliceStore, BOB_ADDRESS);

            var bobStore = new TestInMemoryAxolotlStore();

            var bobPreKeyPair            = Curve.GenerateKeyPair();
            var bobSignedPreKeyPair      = Curve.GenerateKeyPair();
            var bobSignedPreKeySignature = Curve.CalculateSignature(bobStore.GetIdentityKeyPair().PrivateKey,
                                                                          bobSignedPreKeyPair.PublicKey.Serialize());

            var bobPreKey = new PreKeyBundle(bobStore.GetLocalRegistrationId(), 1,
                                                      0, null,
                                                      22, bobSignedPreKeyPair.PublicKey,
                                                      bobSignedPreKeySignature,
                                                      bobStore.GetIdentityKeyPair().PublicKey);

            aliceSessionBuilder.Process(bobPreKey);

            Assert.True(aliceStore.ContainsSession(BOB_ADDRESS));
            Assert.True(aliceStore.LoadSession(BOB_ADDRESS).SessionState.GetSessionVersion() == 3);

            var originalMessage    = "L'homme est condamné à être libre";
            var aliceSessionCipher = new SessionCipher(aliceStore, BOB_ADDRESS);
            var outgoingMessage = aliceSessionCipher.Encrypt (Encoding.UTF8.GetBytes (originalMessage));

            Assert.True(outgoingMessage.GetKeyType() == CiphertextMessage.PREKEY_TYPE);

            var incomingMessage = new PreKeyWhisperMessage(outgoingMessage.Serialize());
            Assert.True(!incomingMessage.PreKeyId.HasValue);

            bobStore.StorePreKey(31337, new PreKeyRecord(bobPreKey.PreKeyId, bobPreKeyPair));
            bobStore.StoreSignedPreKey(22, new SignedPreKeyRecord(22, currentMillis, bobSignedPreKeyPair, bobSignedPreKeySignature));

            var bobSessionCipher = new SessionCipher(bobStore, ALICE_ADDRESS);
            var plaintext        = bobSessionCipher.Decrypt(incomingMessage);

            Assert.True(bobStore.ContainsSession(ALICE_ADDRESS));
            Assert.True(bobStore.LoadSession(ALICE_ADDRESS).SessionState.GetSessionVersion() == 3);
            Assert.True(bobStore.LoadSession(ALICE_ADDRESS).SessionState.AliceBaseKey != null);
            Assert.True(originalMessage.Equals(Encoding.UTF8.GetString(plaintext)));
        }
Ejemplo n.º 7
0
        public void TestBasicPreKeyV3()
        {
            var aliceStore         		 = new TestInMemoryAxolotlStore();
            var aliceSessionBuilder		 = new SessionBuilder(aliceStore, BOB_ADDRESS);

            var bobStore           		 = new TestInMemoryAxolotlStore();
            var bobPreKeyPair      		 = Curve.GenerateKeyPair();
            var bobSignedPreKeyPair		 = Curve.GenerateKeyPair();
            var bobSignedPreKeySignature = Curve.CalculateSignature(bobStore.GetIdentityKeyPair().PrivateKey,
                                                                             bobSignedPreKeyPair.PublicKey.Serialize());

            var bobPreKey = new PreKeyBundle(bobStore.GetLocalRegistrationId(), 1,
                                                      31337, bobPreKeyPair.PublicKey,
                                                      22, bobSignedPreKeyPair.PublicKey,
                                                      bobSignedPreKeySignature,
                                                      bobStore.GetIdentityKeyPair().PublicKey);

            aliceSessionBuilder.Process(bobPreKey);

            Assert.True(aliceStore.ContainsSession(BOB_ADDRESS));
            Assert.True(aliceStore.LoadSession(BOB_ADDRESS).SessionState.GetSessionVersion() == 3);

            var originalMessage    = "L'homme est condamné à être libre";
            var aliceSessionCipher = new SessionCipher(aliceStore, BOB_ADDRESS);
            var outgoingMessage = aliceSessionCipher.Encrypt (Encoding.UTF8.GetBytes (originalMessage));

            Assert.True(outgoingMessage.GetKeyType() == CiphertextMessage.PREKEY_TYPE);

            PreKeyWhisperMessage incomingMessage = new PreKeyWhisperMessage(outgoingMessage.Serialize());
            bobStore.StorePreKey(31337, new PreKeyRecord(bobPreKey.PreKeyId, bobPreKeyPair));
            bobStore.StoreSignedPreKey(22, new SignedPreKeyRecord(22, currentMillis, bobSignedPreKeyPair, bobSignedPreKeySignature));

            SessionCipher bobSessionCipher = new SessionCipher(bobStore, ALICE_ADDRESS);
            byte[] plaintext = bobSessionCipher.Decrypt(incomingMessage, new TestDecryptionCallback());

            Assert.True(bobStore.ContainsSession(ALICE_ADDRESS));
            Assert.True(bobStore.LoadSession(ALICE_ADDRESS).SessionState.GetSessionVersion() == 3);
            Assert.True(bobStore.LoadSession(ALICE_ADDRESS).SessionState.AliceBaseKey != null);
            Assert.True(originalMessage.Equals(Encoding.UTF8.GetString(plaintext)));

            CiphertextMessage bobOutgoingMessage = bobSessionCipher.Encrypt (Encoding.UTF8.GetBytes (originalMessage));
            Assert.True(bobOutgoingMessage.GetKeyType() == CiphertextMessage.WHISPER_TYPE);

            var alicePlaintext = aliceSessionCipher.Decrypt(new WhisperMessage(bobOutgoingMessage.Serialize()));
            Assert.True (Encoding.UTF8.GetString(alicePlaintext).Equals (originalMessage));

            RunInteraction(aliceStore, bobStore);

            aliceStore          = new TestInMemoryAxolotlStore();
            aliceSessionBuilder = new SessionBuilder(aliceStore, BOB_ADDRESS);
            aliceSessionCipher  = new SessionCipher(aliceStore, BOB_ADDRESS);

            bobPreKeyPair            = Curve.GenerateKeyPair();
            bobSignedPreKeyPair      = Curve.GenerateKeyPair();
            bobSignedPreKeySignature = Curve.CalculateSignature(bobStore.GetIdentityKeyPair().PrivateKey, bobSignedPreKeyPair.PublicKey.Serialize());
            bobPreKey = new PreKeyBundle(bobStore.GetLocalRegistrationId(),
                                         1, 31338, bobPreKeyPair.PublicKey,
                                         23, bobSignedPreKeyPair.PublicKey, bobSignedPreKeySignature,
                                         bobStore.GetIdentityKeyPair().PublicKey);

            bobStore.StorePreKey(31338, new PreKeyRecord(bobPreKey.PreKeyId, bobPreKeyPair));
            bobStore.StoreSignedPreKey(23, new SignedPreKeyRecord(23, currentMillis, bobSignedPreKeyPair, bobSignedPreKeySignature));
            aliceSessionBuilder.Process(bobPreKey);

            outgoingMessage = aliceSessionCipher.Encrypt (Encoding.UTF8.GetBytes (originalMessage));

            try {
                plaintext = bobSessionCipher.Decrypt(new PreKeyWhisperMessage(outgoingMessage.Serialize()));
                throw new InvalidOperationException("shouldn't be trusted!");
            } catch (UntrustedIdentityException uie) {
                bobStore.SaveIdentity(ALICE_ADDRESS.Name, new PreKeyWhisperMessage(outgoingMessage.Serialize()).IdentityKey);
            }

            plaintext = bobSessionCipher.Decrypt(new PreKeyWhisperMessage(outgoingMessage.Serialize()));
            Assert.True(Encoding.UTF8.GetString(plaintext).Equals(originalMessage));

            bobPreKey = new PreKeyBundle(bobStore.GetLocalRegistrationId(), 1,
                                         31337, Curve.GenerateKeyPair().PublicKey,
                                         23, bobSignedPreKeyPair.PublicKey, bobSignedPreKeySignature,
                                         aliceStore.GetIdentityKeyPair().PublicKey);

            try {
                aliceSessionBuilder.Process(bobPreKey);
                throw new InvalidOperationException("shoulnd't be trusted!");
            } catch (UntrustedIdentityException uie) {
                Assert.Pass();
            }
        }
Ejemplo n.º 8
0
        public void TestBasicPreKeyV2()
        {
            IAxolotlStore   aliceStore         = new TestInMemoryAxolotlStore();
            SessionBuilder aliceSessionBuilder = new SessionBuilder(aliceStore, BOB_ADDRESS);

            IAxolotlStore bobStore      = new TestInMemoryAxolotlStore();
            ECKeyPair    bobPreKeyPair = Curve.GenerateKeyPair();
            PreKeyBundle bobPreKey     = new PreKeyBundle(bobStore.GetLocalRegistrationId(), 1,
                                                          31337, bobPreKeyPair.PublicKey,
                                                          0, null, null,
                                                          bobStore.GetIdentityKeyPair().PublicKey);

            aliceSessionBuilder.Process(bobPreKey);

            Assert.True(aliceStore.ContainsSession(BOB_ADDRESS));
            Assert.True(aliceStore.LoadSession(BOB_ADDRESS).SessionState.GetSessionVersion() == 2);

            var originalMessage    = "L'homme est condamné à être libre";
            var aliceSessionCipher = new SessionCipher(aliceStore, BOB_ADDRESS);
            var outgoingMessage    = aliceSessionCipher.Encrypt(Encoding.UTF8.GetBytes(originalMessage));

            Assert.True(outgoingMessage.GetKeyType() == CiphertextMessage.PREKEY_TYPE);

            PreKeyWhisperMessage incomingMessage = new PreKeyWhisperMessage(outgoingMessage.Serialize());
            bobStore.StorePreKey((UInt32)31337, new PreKeyRecord(bobPreKey.PreKeyId, bobPreKeyPair));

            var bobSessionCipher = new SessionCipher(bobStore, ALICE_ADDRESS);
            var plaintext        = bobSessionCipher.Decrypt(incomingMessage);

            Assert.True(bobStore.ContainsSession(ALICE_ADDRESS));
            Assert.True(bobStore.LoadSession(ALICE_ADDRESS).SessionState.GetSessionVersion() == 2);
            Assert.True(originalMessage.Equals(new string(plaintext.Select(x => (char)x).ToArray())));

            var bobOutgoingMessage = bobSessionCipher.Encrypt (Encoding.UTF8.GetBytes (originalMessage));
            Assert.True(bobOutgoingMessage.GetKeyType() == CiphertextMessage.WHISPER_TYPE);

            var alicePlaintext = aliceSessionCipher.Decrypt((WhisperMessage)bobOutgoingMessage);
            Assert.True(new string(alicePlaintext.Select(x => (char)x).ToArray()).Equals(originalMessage));

            RunInteraction(aliceStore, bobStore);

            aliceStore          = new TestInMemoryAxolotlStore();
            aliceSessionBuilder = new SessionBuilder(aliceStore, BOB_ADDRESS);
            aliceSessionCipher  = new SessionCipher(aliceStore, BOB_ADDRESS);

            bobPreKeyPair = Curve.GenerateKeyPair();
            bobPreKey = new PreKeyBundle(bobStore.GetLocalRegistrationId(),
                                         1, 31338, bobPreKeyPair.PublicKey,
                                         0, null, null, bobStore.GetIdentityKeyPair().PublicKey	);

            bobStore.StorePreKey((UInt32)31338, new PreKeyRecord(bobPreKey.PreKeyId, bobPreKeyPair));
            aliceSessionBuilder.Process(bobPreKey);

            outgoingMessage = aliceSessionCipher.Encrypt (Encoding.UTF8.GetBytes (originalMessage));

            try {
                bobSessionCipher.Decrypt(new PreKeyWhisperMessage(outgoingMessage.Serialize()));
                throw new InvalidOperationException("shouldn't be trusted!");
            } catch (UntrustedIdentityException uie) {
                bobStore.SaveIdentity(ALICE_ADDRESS.Name, new PreKeyWhisperMessage(outgoingMessage.Serialize()).IdentityKey);
            }

            plaintext = bobSessionCipher.Decrypt(new PreKeyWhisperMessage(outgoingMessage.Serialize()));

            Assert.True(new string(plaintext.Select(x => (char)x).ToArray()).Equals(originalMessage));

            bobPreKey = new PreKeyBundle(bobStore.GetLocalRegistrationId(), 1,
                                         31337, Curve.GenerateKeyPair().PublicKey,
                                         0, null, null,
                                         aliceStore.GetIdentityKeyPair().PublicKey);

            try {
                aliceSessionBuilder.Process(bobPreKey);
                throw new InvalidOperationException("shoulnd't be trusted!");
            } catch (UntrustedIdentityException uie) {
                Assert.Pass();
            }
        }
Ejemplo n.º 9
0
        public void TestBasicKeyExchange()
        {
            var aliceStore          = new TestInMemoryAxolotlStore();
            var aliceSessionBuilder = new SessionBuilder(aliceStore, BOB_ADDRESS);

            var bobStore          = new TestInMemoryAxolotlStore();
            var bobSessionBuilder = new SessionBuilder(bobStore, ALICE_ADDRESS);

            var aliceKeyExchangeMessage      = aliceSessionBuilder.Process();
            Assert.True(aliceKeyExchangeMessage != null);

            var aliceKeyExchangeMessageBytes = aliceKeyExchangeMessage.Serialize();
            var bobKeyExchangeMessage        = bobSessionBuilder.Process(new KeyExchangeMessage(aliceKeyExchangeMessageBytes));

            Assert.True(bobKeyExchangeMessage != null);

            var bobKeyExchangeMessageBytes = bobKeyExchangeMessage.Serialize();
            var response = aliceSessionBuilder.Process(new KeyExchangeMessage(bobKeyExchangeMessageBytes));

            Assert.True(response == null);
            Assert.True(aliceStore.ContainsSession(BOB_ADDRESS));
            Assert.True(bobStore.ContainsSession(ALICE_ADDRESS));

            RunInteraction(aliceStore, bobStore);

            aliceStore              = new TestInMemoryAxolotlStore();
            aliceSessionBuilder     = new SessionBuilder(aliceStore, BOB_ADDRESS);
            aliceKeyExchangeMessage = aliceSessionBuilder.Process();

            try {
                bobKeyExchangeMessage = bobSessionBuilder.Process(aliceKeyExchangeMessage);
                throw new InvalidOperationException("This identity shouldn't be trusted!");
            } catch (UntrustedIdentityException uie) {
                bobStore.SaveIdentity(ALICE_ADDRESS.Name, aliceKeyExchangeMessage.IdentityKey);
                bobKeyExchangeMessage = bobSessionBuilder.Process(aliceKeyExchangeMessage);
            }

            Assert.True(aliceSessionBuilder.Process(bobKeyExchangeMessage) == null);

            RunInteraction(aliceStore, bobStore);
        }