public static void ServerKeyExchange(TlsConnection connection) { byte[] data = new byte[7 + TlsConnection.SrpNBytes.Length + TlsConnection.SrpGBytes.Length + TlsConnection.SrpSBytes.Length + connection.SrpB.Length]; //N data[0] = (byte)(TlsConnection.SrpNBytes.Length >> 8); data[1] = (byte)TlsConnection.SrpNBytes.Length; Buffer.BlockCopy(TlsConnection.SrpNBytes, 0, data, 2, TlsConnection.SrpNBytes.Length); int offset = TlsConnection.SrpNBytes.Length + 2; //G data[offset] = (byte)(TlsConnection.SrpGBytes.Length >> 8); data[offset + 1] = (byte)TlsConnection.SrpGBytes.Length; Buffer.BlockCopy(TlsConnection.SrpGBytes, 0, data, offset + 2, TlsConnection.SrpGBytes.Length); offset += TlsConnection.SrpGBytes.Length + 2; //S data[offset] = (byte)TlsConnection.SrpSBytes.Length; Buffer.BlockCopy(TlsConnection.SrpSBytes, 0, data, offset + 1, TlsConnection.SrpSBytes.Length); offset += TlsConnection.SrpSBytes.Length + 1; //B data[offset] = (byte)(connection.SrpB.Length >> 8); data[offset + 1] = (byte)connection.SrpB.Length; Buffer.BlockCopy(connection.SrpB, 0, data, offset + 2, connection.SrpB.Length); TlsResponse.Handshake(connection, 12, ref data); }
public static void ServerServerFinish(TlsConnection connection) { Log.Success("ServerServerFinish", "Finished the transaction!"); var sha256 = SHA256.Create(); var handshakeHash = sha256.ComputeHash(connection.HandshakeMessages.ToArray()); var prfClient = new PseudoRandomFunction(connection.MasterSecretBytes, "server finished", handshakeHash); byte[] servVerData = prfClient.GenerateBytes(12); TlsResponse.Handshake(connection, 20, ref servVerData); }
public static void ServerHello(TlsConnection connection) { byte[] data = new byte[] { 0x03, 0x03 // Version: TLS 1.2 , 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 , 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 , 0x00 // Session ID length: 0 , 0xc0, 0x1d // Cipher suite: TLS_SRP_SHA_WITH_AES_128_CBC_SHA , 0x00 // Compression method: null }; connection.ServerRandom = new byte[32]; Utils.Random.NextBytes(connection.ServerRandom); Buffer.BlockCopy(connection.ServerRandom, 0, data, 2, 32); TlsResponse.Handshake(connection, 2, ref data); }
public static void ServerHelloDone(TlsConnection connection) { Log.Success("ServerHelloDone", "Finished server hello!"); byte[] data = new byte[0]; TlsResponse.Handshake(connection, 14, ref data); }