Ejemplo n.º 1
0
        /**
         * Generate an identity key pair.  Clients should only do this once,
         * at install time.
         *
         * @return the generated IdentityKeyPair.
         */

        public static IdentityKeyPair GenerateIdentityKeyPair()
        {
            ECKeyPair   keyPair   = Curve.GenerateKeyPair();
            IdentityKey publicKey = new IdentityKey(keyPair.GetPublicKey());

            return(new IdentityKeyPair(publicKey, keyPair.GetPrivateKey()));
        }
Ejemplo n.º 2
0
 public SignedPreKeyRecord(uint id, ulong timestamp, ECKeyPair keyPair, byte[] signature)
 {
     this.structure = SignedPreKeyRecordStructure.CreateBuilder()
                      .SetId(id)
                      .SetPublicKey(ByteString.CopyFrom(keyPair.GetPublicKey().Serialize()))
                      .SetPrivateKey(ByteString.CopyFrom(keyPair.GetPrivateKey().Serialize()))
                      .SetSignature(ByteString.CopyFrom(signature))
                      .SetTimestamp(timestamp)
                      .Build();
 }
Ejemplo n.º 3
0
 public PreKeyRecord(uint id, ECKeyPair keyPair)
 {
     this.structure = PreKeyRecordStructure.CreateBuilder()
                      .SetId(id)
                      .SetPublicKey(ByteString.CopyFrom(keyPair.GetPublicKey()
                                                        .Serialize()))
                      .SetPrivateKey(ByteString.CopyFrom(keyPair.GetPrivateKey()
                                                         .Serialize()))
                      .Build();
 }
Ejemplo n.º 4
0
        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();
        }
Ejemplo n.º 5
0
        public void SetPendingKeyExchange(uint sequence,
                                          ECKeyPair ourBaseKey,
                                          ECKeyPair ourRatchetKey,
                                          IdentityKeyPair ourIdentityKey)
        {
            PendingKeyExchange structure =
                PendingKeyExchange.CreateBuilder()
                .SetSequence(sequence)
                .SetLocalBaseKey(ByteString.CopyFrom(ourBaseKey.GetPublicKey().Serialize()))
                .SetLocalBaseKeyPrivate(ByteString.CopyFrom(ourBaseKey.GetPrivateKey().Serialize()))
                .SetLocalRatchetKey(ByteString.CopyFrom(ourRatchetKey.GetPublicKey().Serialize()))
                .SetLocalRatchetKeyPrivate(ByteString.CopyFrom(ourRatchetKey.GetPrivateKey().Serialize()))
                .SetLocalIdentityKey(ByteString.CopyFrom(ourIdentityKey.GetPublicKey().Serialize()))
                .SetLocalIdentityKeyPrivate(ByteString.CopyFrom(ourIdentityKey.GetPrivateKey().Serialize()))
                .Build();

            this.sessionStructure = this.sessionStructure.ToBuilder()
                                    .SetPendingKeyExchange(structure)
                                    .Build();
        }
Ejemplo n.º 6
0
 public SenderKeyState(uint id, uint iteration, byte[] chainKey, ECKeyPair signatureKey)
     : this(id, iteration, chainKey, signatureKey.GetPublicKey(), new May <ECPrivateKey>(signatureKey.GetPrivateKey()))
 {
 }
Ejemplo n.º 7
0
        public Pair <RootKey, ChainKey> CreateChain(ECPublicKey theirRatchetKey, ECKeyPair ourRatchetKey)
        {
            byte[]             sharedSecret       = Curve.CalculateAgreement(theirRatchetKey, ourRatchetKey.GetPrivateKey());
            byte[]             derivedSecretBytes = kdf.DeriveSecrets(sharedSecret, key, Encoding.UTF8.GetBytes("WhisperRatchet"), DerivedRootSecrets.SIZE);
            DerivedRootSecrets derivedSecrets     = new DerivedRootSecrets(derivedSecretBytes);

            RootKey  newRootKey  = new RootKey(kdf, derivedSecrets.GetRootKey());
            ChainKey newChainKey = new ChainKey(kdf, derivedSecrets.GetChainKey(), 0);

            return(new Pair <RootKey, ChainKey>(newRootKey, newChainKey));
        }