Esempio n. 1
0
        public void TestChainKeyDerivationV3()
        {
            byte[] seed =
            {
                0x8a, 0xb7, 0x2d, 0x6f, 0x4c,
                0xc5, 0xac, 0x0d, 0x38, 0x7e,
                0xaf, 0x46, 0x33, 0x78, 0xdd,
                0xb2, 0x8e, 0xdd, 0x07, 0x38,
                0x5b, 0x1c, 0xb0, 0x12, 0x50,
                0xc7, 0x15, 0x98, 0x2e, 0x7a,
                0xd4, 0x8f
            };

            byte[] messageKey =
            {
                /* 0x02*/
                0xbf, 0x51, 0xe9, 0xd7,
                0x5e, 0x0e, 0x31, 0x03, 0x10,
                0x51, 0xf8, 0x2a, 0x24, 0x91,
                0xff, 0xc0, 0x84, 0xfa, 0x29,
                0x8b, 0x77, 0x93, 0xbd, 0x9d,
                0xb6, 0x20, 0x05, 0x6f, 0xeb,
                0xf4, 0x52, 0x17
            };

            byte[] macKey =
            {
                0xc6, 0xc7, 0x7d, 0x6a, 0x73,
                0xa3, 0x54, 0x33, 0x7a, 0x56,
                0x43, 0x5e, 0x34, 0x60, 0x7d,
                0xfe, 0x48, 0xe3, 0xac, 0xe1,
                0x4e, 0x77, 0x31, 0x4d, 0xc6,
                0xab, 0xc1, 0x72, 0xe7, 0xa7,
                0x03, 0x0b
            };

            byte[] nextChainKey =
            {
                0x28, 0xe8, 0xf8, 0xfe, 0xe5,
                0x4b, 0x80, 0x1e, 0xef, 0x7c,
                0x5c, 0xfb, 0x2f, 0x17, 0xf3,
                0x2c, 0x7b, 0x33, 0x44, 0x85,
                0xbb, 0xb7, 0x0f, 0xac, 0x6e,
                0xc1, 0x03, 0x42, 0xa2, 0x46,
                0xd1, 0x5d
            };

            ChainKey chainKey = new ChainKey(Hkdf.CreateFor(3), seed, 0);

            CollectionAssert.AreEqual(seed, chainKey.GetKey());
            CollectionAssert.AreEqual(messageKey, chainKey.GetMessageKeys().GetCipherKey());
            CollectionAssert.AreEqual(macKey, chainKey.GetMessageKeys().GetMacKey());
            CollectionAssert.AreEqual(nextChainKey, chainKey.GetNextChainKey().GetKey());
            Assert.AreEqual <uint>(0, chainKey.GetIndex());
            Assert.AreEqual <uint>(0, chainKey.GetMessageKeys().GetCounter());
            Assert.AreEqual <uint>(1, chainKey.GetNextChainKey().GetIndex());
            Assert.AreEqual <uint>(1, chainKey.GetNextChainKey().GetMessageKeys().GetCounter());
        }
Esempio n. 2
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        public void TestChainKeyDerivationV2()
        {
            byte[] seed =
            {
                0x8a, 0xb7, 0x2d, 0x6f, 0x4c,
                0xc5, 0xac, 0x0d, 0x38, 0x7e,
                0xaf, 0x46, 0x33, 0x78, 0xdd,
                0xb2, 0x8e, 0xdd, 0x07, 0x38,
                0x5b, 0x1c, 0xb0, 0x12, 0x50,
                0xc7, 0x15, 0x98, 0x2e, 0x7a,
                0xd4, 0x8f
            };

            byte[] messageKey =
            {
                0x02, 0xa9, 0xaa, 0x6c, 0x7d,
                0xbd, 0x64, 0xf9, 0xd3, 0xaa,
                0x92, 0xf9, 0x2a, 0x27, 0x7b,
                0xf5, 0x46, 0x09, 0xda, 0xdf,
                0x0b, 0x00, 0x82, 0x8a, 0xcf,
                0xc6, 0x1e, 0x3c, 0x72, 0x4b,
                0x84, 0xa7
            };

            byte[] macKey =
            {
                0xbf, 0xbe, 0x5e, 0xfb, 0x60,
                0x30, 0x30, 0x52, 0x67, 0x42,
                0xe3, 0xee, 0x89, 0xc7, 0x02,
                0x4e, 0x88, 0x4e, 0x44, 0x0f,
                0x1f, 0xf3, 0x76, 0xbb, 0x23,
                0x17, 0xb2, 0xd6, 0x4d, 0xeb,
                0x7c, 0x83
            };

            byte[] nextChainKey =
            {
                0x28, 0xe8, 0xf8, 0xfe, 0xe5,
                0x4b, 0x80, 0x1e, 0xef, 0x7c,
                0x5c, 0xfb, 0x2f, 0x17, 0xf3,
                0x2c, 0x7b, 0x33, 0x44, 0x85,
                0xbb, 0xb7, 0x0f, 0xac, 0x6e,
                0xc1, 0x03, 0x42, 0xa2, 0x46,
                0xd1, 0x5d
            };

            ChainKey chainKey = new ChainKey(Hkdf.CreateFor(2), seed, 0);

            Assert.AreEqual(seed, chainKey.GetKey());
            CollectionAssert.AreEqual(messageKey, chainKey.GetMessageKeys().GetCipherKey());
            CollectionAssert.AreEqual(macKey, chainKey.GetMessageKeys().GetMacKey());
            CollectionAssert.AreEqual(nextChainKey, chainKey.GetNextChainKey().GetKey());
            Assert.AreEqual <uint>(0, chainKey.GetIndex());
            Assert.AreEqual <uint>(0, chainKey.GetMessageKeys().GetCounter());
            Assert.AreEqual <uint>(1, chainKey.GetNextChainKey().GetIndex());
            Assert.AreEqual <uint>(1, chainKey.GetNextChainKey().GetMessageKeys().GetCounter());
        }
        public void SetSenderChainKey(ChainKey nextChainKey)
        {
            SessionStructure.Types.Chain.Types.ChainKey chainKey = new SessionStructure.Types.Chain.Types.ChainKey
            {
                Key   = ByteString.CopyFrom(nextChainKey.GetKey()),
                Index = nextChainKey.GetIndex()
            };

            _sessionStructure.SenderChain.ChainKey = chainKey;
        }
Esempio n. 4
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        public void SetSenderChainKey(ChainKey nextChainKey)
        {
            Chain.Types.ChainKey chainKey = Chain.Types.ChainKey.CreateBuilder()
                                            .SetKey(ByteString.CopyFrom(nextChainKey.GetKey()))
                                            .SetIndex(nextChainKey.GetIndex())
                                            .Build();

            Chain chain = sessionStructure.SenderChain.ToBuilder()
                          .SetChainKey(chainKey).Build();

            this.sessionStructure = this.sessionStructure.ToBuilder().SetSenderChain(chain).Build();
        }
Esempio n. 5
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        public void SetSenderChain(ECKeyPair senderRatchetKeyPair, ChainKey chainKey)
        {
            Chain.Types.ChainKey chainKeyStructure = Chain.Types.ChainKey.CreateBuilder()
                                                     .SetKey(ByteString.CopyFrom(chainKey.GetKey()))
                                                     .SetIndex(chainKey.GetIndex())
                                                     .Build();

            Chain senderChain = Chain.CreateBuilder()
                                .SetSenderRatchetKey(ByteString.CopyFrom(senderRatchetKeyPair.GetPublicKey().Serialize()))
                                .SetSenderRatchetKeyPrivate(ByteString.CopyFrom(senderRatchetKeyPair.GetPrivateKey().Serialize()))
                                .SetChainKey(chainKeyStructure)
                                .Build();

            this.sessionStructure = this.sessionStructure.ToBuilder().SetSenderChain(senderChain).Build();
        }
Esempio n. 6
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        public void SetReceiverChainKey(ECPublicKey senderEphemeral, ChainKey chainKey)
        {
            Pair <Chain, uint> chainAndIndex = GetReceiverChain(senderEphemeral);
            Chain chain = chainAndIndex.First();

            Chain.Types.ChainKey chainKeyStructure = Chain.Types.ChainKey.CreateBuilder()
                                                     .SetKey(ByteString.CopyFrom(chainKey.GetKey()))
                                                     .SetIndex(chainKey.GetIndex())
                                                     .Build();

            Chain updatedChain = chain.ToBuilder().SetChainKey(chainKeyStructure).Build();

            this.sessionStructure = this.sessionStructure.ToBuilder()
                                    .SetReceiverChains((int)chainAndIndex.Second(), updatedChain)                      // TODO: conv
                                    .Build();
        }
        public void SetReceiverChainKey(IEcPublicKey senderEphemeral, ChainKey chainKey)
        {
            Pair <SessionStructure.Types.Chain, uint> chainAndIndex = GetReceiverChain(senderEphemeral);

            SessionStructure.Types.Chain chain = chainAndIndex.First();

            SessionStructure.Types.Chain.Types.ChainKey chainKeyStructure = new SessionStructure.Types.Chain.Types.ChainKey
            {
                Key   = ByteString.CopyFrom(chainKey.GetKey()),
                Index = chainKey.GetIndex()
            };

            chain.ChainKey = chainKeyStructure;

            _sessionStructure.ReceiverChains[(int)chainAndIndex.Second()] = chain;
        }
        public void SetSenderChain(EcKeyPair senderRatchetKeyPair, ChainKey chainKey)
        {
            SessionStructure.Types.Chain.Types.ChainKey chainKeyStructure = new SessionStructure.Types.Chain.Types.ChainKey
            {
                Key   = ByteString.CopyFrom(chainKey.GetKey()),
                Index = chainKey.GetIndex()
            };

            SessionStructure.Types.Chain senderChain = new SessionStructure.Types.Chain
            {
                SenderRatchetKey        = ByteString.CopyFrom(senderRatchetKeyPair.GetPublicKey().Serialize()),
                SenderRatchetKeyPrivate = ByteString.CopyFrom(senderRatchetKeyPair.GetPrivateKey().Serialize()),
                ChainKey = chainKeyStructure
            };

            _sessionStructure.SenderChain = senderChain;
        }
Esempio n. 9
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        public void AddReceiverChain(ECPublicKey senderRatchetKey, ChainKey chainKey)
        {
            Chain.Types.ChainKey chainKeyStructure = Chain.Types.ChainKey.CreateBuilder()
                                                     .SetKey(ByteString.CopyFrom(chainKey.GetKey()))
                                                     .SetIndex(chainKey.GetIndex())
                                                     .Build();

            Chain chain = Chain.CreateBuilder()
                          .SetChainKey(chainKeyStructure)
                          .SetSenderRatchetKey(ByteString.CopyFrom(senderRatchetKey.Serialize()))
                          .Build();

            this.sessionStructure = this.sessionStructure.ToBuilder().AddReceiverChains(chain).Build();

            if (this.sessionStructure.ReceiverChainsList.Count > 5)
            {
                this.sessionStructure = this.sessionStructure.ToBuilder() /*.ClearReceiverChains()*/.Build(); //RemoveReceiverChains(0) TODO: why does it work without
            }
        }
        public void AddReceiverChain(IEcPublicKey senderRatchetKey, ChainKey chainKey)
        {
            SessionStructure.Types.Chain.Types.ChainKey chainKeyStructure = new SessionStructure.Types.Chain.Types.ChainKey
            {
                Key   = ByteString.CopyFrom(chainKey.GetKey()),
                Index = chainKey.GetIndex()
            };

            SessionStructure.Types.Chain chain = new SessionStructure.Types.Chain
            {
                ChainKey         = chainKeyStructure,
                SenderRatchetKey = ByteString.CopyFrom(senderRatchetKey.Serialize())
            };
            _sessionStructure.ReceiverChains.Add(chain);

            while (_sessionStructure.ReceiverChains.Count > 5)
            {
                _sessionStructure.ReceiverChains.RemoveAt(0); //TODO why was here a TODO?
            }
        }
Esempio n. 11
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        public void SetSenderChainKey(ChainKey nextChainKey)
        {
            StorageProtos.SessionStructure.Types.Chain.Types.ChainKey chainKey = StorageProtos.SessionStructure.Types.Chain.Types.ChainKey.CreateBuilder()
                                                                                 .SetKey(ByteString.CopyFrom(nextChainKey.GetKey()))
                                                                                 .SetIndex(nextChainKey.GetIndex())
                                                                                 .Build();

            StorageProtos.SessionStructure.Types.Chain chain = _sessionStructure.SenderChain.ToBuilder()
                                                               .SetChainKey(chainKey).Build();

            _sessionStructure = _sessionStructure.ToBuilder().SetSenderChain(chain).Build();
        }
Esempio n. 12
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        public void SetSenderChain(EcKeyPair senderRatchetKeyPair, ChainKey chainKey)
        {
            StorageProtos.SessionStructure.Types.Chain.Types.ChainKey chainKeyStructure = StorageProtos.SessionStructure.Types.Chain.Types.ChainKey.CreateBuilder()
                                                                                          .SetKey(ByteString.CopyFrom(chainKey.GetKey()))
                                                                                          .SetIndex(chainKey.GetIndex())
                                                                                          .Build();

            StorageProtos.SessionStructure.Types.Chain senderChain = StorageProtos.SessionStructure.Types.Chain.CreateBuilder()
                                                                     .SetSenderRatchetKey(ByteString.CopyFrom(senderRatchetKeyPair.GetPublicKey().Serialize()))
                                                                     .SetSenderRatchetKeyPrivate(ByteString.CopyFrom(senderRatchetKeyPair.GetPrivateKey().Serialize()))
                                                                     .SetChainKey(chainKeyStructure)
                                                                     .Build();

            _sessionStructure = _sessionStructure.ToBuilder().SetSenderChain(senderChain).Build();
        }
Esempio n. 13
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        public void TestRootKeyDerivationV2()
        {
            byte[] rootKeySeed =
            {
                0x7b, 0xa6, 0xde, 0xbc, 0x2b,
                0xc1, 0xbb, 0xf9, 0x1a, 0xbb,
                0xc1, 0x36, 0x74, 0x04, 0x17,
                0x6c, 0xa6, 0x23, 0x09, 0x5b,
                0x7e, 0xc6, 0x6b, 0x45, 0xf6,
                0x02, 0xd9, 0x35, 0x38, 0x94,
                0x2d, 0xcc
            };

            byte[] alicePublic =
            {
                0x05, 0xee, 0x4f, 0xa6, 0xcd,
                0xc0, 0x30, 0xdf, 0x49, 0xec,
                0xd0, 0xba, 0x6c, 0xfc, 0xff,
                0xb2, 0x33, 0xd3, 0x65, 0xa2,
                0x7f, 0xad, 0xbe, 0xff, 0x77,
                0xe9, 0x63, 0xfc, 0xb1, 0x62,
                0x22, 0xe1, 0x3a
            };

            byte[] alicePrivate =
            {
                0x21, 0x68, 0x22, 0xec, 0x67,
                0xeb, 0x38, 0x04, 0x9e, 0xba,
                0xe7, 0xb9, 0x39, 0xba, 0xea,
                0xeb, 0xb1, 0x51, 0xbb, 0xb3,
                0x2d, 0xb8, 0x0f, 0xd3, 0x89,
                0x24, 0x5a, 0xc3, 0x7a, 0x94,
                0x8e, 0x50
            };

            byte[] bobPublic =
            {
                0x05, 0xab, 0xb8, 0xeb, 0x29,
                0xcc, 0x80, 0xb4, 0x71, 0x09,
                0xa2, 0x26, 0x5a, 0xbe, 0x97,
                0x98, 0x48, 0x54, 0x06, 0xe3,
                0x2d, 0xa2, 0x68, 0x93, 0x4a,
                0x95, 0x55, 0xe8, 0x47, 0x57,
                0x70, 0x8a, 0x30
            };

            byte[] nextRoot =
            {
                0xb1, 0x14, 0xf5, 0xde, 0x28,
                0x01, 0x19, 0x85, 0xe6, 0xeb,
                0xa2, 0x5d, 0x50, 0xe7, 0xec,
                0x41, 0xa9, 0xb0, 0x2f, 0x56,
                0x93, 0xc5, 0xc7, 0x88, 0xa6,
                0x3a, 0x06, 0xd2, 0x12, 0xa2,
                0xf7, 0x31
            };

            byte[] nextChain =
            {
                0x9d, 0x7d, 0x24, 0x69, 0xbc,
                0x9a, 0xe5, 0x3e, 0xe9, 0x80,
                0x5a, 0xa3, 0x26, 0x4d, 0x24,
                0x99, 0xa3, 0xac, 0xe8, 0x0f,
                0x4c, 0xca, 0xe2, 0xda, 0x13,
                0x43, 0x0c, 0x5c, 0x55, 0xb5,
                0xca, 0x5f
            };

            IEcPublicKey  alicePublicKey  = Curve.DecodePoint(alicePublic, 0);
            IEcPrivateKey alicePrivateKey = Curve.DecodePrivatePoint(alicePrivate);
            EcKeyPair     aliceKeyPair    = new EcKeyPair(alicePublicKey, alicePrivateKey);

            IEcPublicKey bobPublicKey = Curve.DecodePoint(bobPublic, 0);
            RootKey      rootKey      = new RootKey(Hkdf.CreateFor(2), rootKeySeed);

            Pair <RootKey, ChainKey> rootKeyChainKeyPair = rootKey.CreateChain(bobPublicKey, aliceKeyPair);
            RootKey  nextRootKey  = rootKeyChainKeyPair.First();
            ChainKey nextChainKey = rootKeyChainKeyPair.Second();

            CollectionAssert.AreEqual(rootKey.GetKeyBytes(), rootKeySeed);
            CollectionAssert.AreEqual(nextRootKey.GetKeyBytes(), nextRoot);
            CollectionAssert.AreEqual(nextChainKey.GetKey(), nextChain);
        }