Ejemplo n.º 1
0
        public static async Task Run(CancellationToken cancellationToken)
        {
            // generate a key pair
            byte[] privateKey = KeyGeneration.GeneratePrivateKey();
            byte[] publicKey  = KeyGeneration.GetPublicKeyFromPrivateKey(privateKey);

            // configuring as a server with the default application key.
            // messages will be padded to 64 bytes and cannot exceed
            // 256 bytes.
            var config = new MicroRatchetConfiguration
            {
                ApplicationKey     = new byte[32],
                IsClient           = false,
                MaximumMessageSize = 256,
                MinimumMessageSize = 64
            };

            // create the MicroRatchet context
            var services = new BouncyCastleServices(privateKey);

            using var context = new MicroRatchetContext(services, config, null);

            Console.WriteLine($"Starting Server with public key: {publicKey.ToHexString()}");

            // Create UDP client. For the server we set
            // the local endpoint to be localhost,
            // listening on the configured port.
            var        serverEndpoint = new IPEndPoint(IPAddress.Loopback, PORT);
            IPEndPoint clientEndpoint = null;

            using var udp = new UdpClient(serverEndpoint);

            if (!cancellationToken.IsCancellationRequested)
            {
                // in order to get the console, udp stuff, and MR stuff to work
                // together (even though nothing was written for async), we need
                // some synchronization.
                // A background thread reads from the console and pushes messages
                // into a queue which then in turn get sent to the server by the
                // Send task.
                // A receive task handles messages from the server


                // The receive task handles incoming UDP messages.
                var messages  = new ConcurrentQueue <string>();
                var semaphore = new SemaphoreSlim(0);
                async Task ReceiveTask()
                {
                    while (!cancellationToken.IsCancellationRequested)
                    {
                        var received = await udp.ReceiveAsync(cancellationToken);

                        Console.WriteLine($"RECEIVED {received.Buffer.Length} bytes");

                        try
                        {
                            // pass the received data to the MR context
                            var message = context.Receive(received.Buffer);

                            // if ToSendBack is not null, the context has accepted
                            // an incoming initialization message and now is bound
                            // to the session from that client key.
                            if (message.ToSendBack != null)
                            {
                                // send the response back
                                await udp.SendAsync(message.ToSendBack, message.ToSendBack.Length, received.RemoteEndPoint);

                                Console.WriteLine($"SENT {message.ToSendBack.Length} bytes RESPONSE");

                                if (context.IsInitialized)
                                {
                                    // message.ToSendBack != null && context.IsInitialized
                                    // typically happens once per session.
                                    clientEndpoint = received.RemoteEndPoint;
                                    Console.WriteLine($"Server initialized with remote public key {context.GetRemotePublicKey().ToHexString()}.");
                                    Console.WriteLine("Type stuff in and press enter to send to the client.\n\n");
                                }
                            }
                            else if (message.Payload != null)
                            {
                                // if a payload is given, the message contains
                                // data sent by the client, which we print to the console.

                                // The message is always padded to the minimum message size,
                                // so read the incoming message as a null-terminated
                                // string.
                                string msg = message.Payload.DecodeNullTerminatedString();

                                // Print the decrypted and decoded message to the console
                                Console.WriteLine($"RECEIVED MESSAGE: {msg}");
                            }
                        }
                        catch (Exception ex)
                        {
                            // one exception you would see in this situation is if second client
                            // tries to initialize a session. Because the context is bound to a remote
                            // public key as soon as a message comes in, and this demo application
                            // contains no logic to handle that situation, it will simply stay bound
                            // to the first session and throw an exception if another client tries to
                            // connect.
                            Console.WriteLine($"An exception was encountered when receiving a message: {ex}");
                        }
                    }
                }

                // the send task dequeues messages, encrypts, and sends
                // them to the server endpoint as UDP messages.
                async Task SendTask()
                {
                    while (!cancellationToken.IsCancellationRequested)
                    {
                        // wait for a message
                        await semaphore.WaitAsync();

                        messages.TryDequeue(out var payload);

                        // encrypt the message using the context. The message
                        // will be padded to the minimum configured message size.
                        var payloadBytes = Encoding.UTF8.GetBytes(payload);
                        var message      = context.Send(payloadBytes);

                        // send as UDP message to the server endpoint.
                        await udp.SendAsync(message, clientEndpoint, cancellationToken);

                        Console.WriteLine($"SENT {payloadBytes.Length} bytes PAYLOAD, resulting in {message.Length} bytes ENCRYPTED MESSAGE");
                    }
                }

                // The console thread reades lines one at a time and
                // enqueues them for sending.
                var consoleReadThread = new Thread(_ =>
                {
                    for (; ;)
                    {
                        string line = Console.ReadLine();
                        if (clientEndpoint != null)
                        {
                            messages.Enqueue(line);
                            semaphore.Release();
                        }
                        else
                        {
                            Console.WriteLine("Cannot send message as no client has initialized a session");
                        }
                    }
                });
                // background threads are terminated when the program exits
                consoleReadThread.IsBackground = true;
                consoleReadThread.Start();

                await Task.WhenAll(ReceiveTask(), SendTask());
            }
        }
Ejemplo n.º 2
0
        public static async Task Run(CancellationToken cancellationToken)
        {
            // generate a key pair
            byte[] privateKey = KeyGeneration.GeneratePrivateKey();
            byte[] publicKey  = KeyGeneration.GetPublicKeyFromPrivateKey(privateKey);

            // configuring as a client with the default application key.
            // messages will be padded to 64 bytes and cannot exceed
            // 256 bytes.
            var config = new MicroRatchetConfiguration
            {
                ApplicationKey     = new byte[32],
                IsClient           = true,
                MaximumMessageSize = 256,
                MinimumMessageSize = 64
            };

            // create the MicroRatchet context
            var services = new BouncyCastleServices(privateKey);

            using var context = new MicroRatchetContext(services, config, null);

            Console.WriteLine($"Starting Client with public key: {publicKey.ToHexString()}");

            // Create UDP client. No connection since UDP is a
            // connectionless message based protocol. For the client
            // we don't specify a local endpoint.
            using var udp = new UdpClient();
            var serverEndpoint = new IPEndPoint(IPAddress.Loopback, PORT);

            // Step 1: Initialize
            while (!context.IsInitialized && !cancellationToken.IsCancellationRequested)
            {
                try
                {
                    // 1.1 Send initialization request
                    Console.WriteLine("Sending initialization request");
                    byte[] msg = context.InitiateInitialization();
                    await udp.SendAsync(msg, serverEndpoint, cancellationToken);

                    Console.WriteLine($"SENT {msg.Length} bytes INITIALIZATION REQUEST");

                    // 1.2 Receive initialization response
                    var timeout = CancellationTokenSource.CreateLinkedTokenSource(
                        cancellationToken,
                        new CancellationTokenSource(15000).Token).Token;
                    var receivedData = await udp.ReceiveAsync(timeout);

                    Console.WriteLine($"RECEIVED {receivedData.Buffer.Length} bytes FROM SERVER");
                    var res = context.Receive(receivedData.Buffer);

                    if (res.ToSendBack != null)
                    {
                        Console.WriteLine("Received initialization response.");
                        Console.WriteLine($"Server public key: {context.GetRemotePublicKey().ToHexString()}");
                        Console.WriteLine("Sending first message");
                        // 1.3 Send first request
                        await udp.SendAsync(res.ToSendBack, serverEndpoint, cancellationToken);

                        Console.WriteLine($"SENT BACK {res.ToSendBack.Length} bytes");

                        // 1.4 Receive first response
                        timeout = CancellationTokenSource.CreateLinkedTokenSource(
                            cancellationToken,
                            new CancellationTokenSource(15000).Token).Token;
                        receivedData = await udp.ReceiveAsync(timeout);

                        Console.WriteLine($"RECEIVED {receivedData.Buffer.Length} bytes FROM SERVER");
                        res = context.Receive(receivedData.Buffer);
                    }
                }
                catch (Exception ex)
                {
                    Console.WriteLine($"An exception was encountered: {ex.Message}");
                }
            }

            // the context is now initialized and message can be sent back and forth
            // as needed. Messages being dropped or received out of order does not
            // affect subsequent messages.
            if (!cancellationToken.IsCancellationRequested)
            {
                Console.WriteLine("Client initialized");
                Console.WriteLine("Type stuff in and press enter to send to the server.\n\n");

                // in order to get the console, udp stuff, and MR stuff to work
                // together (even though nothing was written for async), we need
                // some synchronization.
                // A background thread reads from the console and pushes messages
                // into a queue which then in turn get sent to the server by the
                // Send task.
                // A receive task handles messages from the server


                // The receive task handles incoming UDP messages.
                var messages  = new ConcurrentQueue <string>();
                var semaphore = new SemaphoreSlim(0);
                async Task ReceiveTask()
                {
                    while (!cancellationToken.IsCancellationRequested)
                    {
                        var received = await udp.ReceiveAsync(cancellationToken);

                        Console.WriteLine($"RECEIVED {received.Buffer.Length} bytes");

                        try
                        {
                            // pass the received data to the MR context
                            var message = context.Receive(received.Buffer);

                            // The message is always padded to the minimum message size,
                            // so read the incoming message as a null-terminated
                            // string.
                            string msg = message.Payload.DecodeNullTerminatedString();

                            // Print the decrypted and decoded message to the console
                            Console.WriteLine($"RECEIVED MESSAGE: {msg}");
                        }
                        catch (Exception ex)
                        {
                            Console.WriteLine($"An exception was encountered when receiving a message: {ex}");
                        }
                    }
                }

                // the send task dequeues messages, encrypts, and sends
                // them to the server endpoint as UDP messages.
                async Task SendTask()
                {
                    while (!cancellationToken.IsCancellationRequested)
                    {
                        // wait for a message
                        await semaphore.WaitAsync();

                        messages.TryDequeue(out var payload);

                        // encrypt the message using the context. The message
                        // will be padded to the minimum configured message size.
                        var payloadBytes = Encoding.UTF8.GetBytes(payload);
                        var message      = context.Send(payloadBytes);

                        // send as UDP message to the server endpoint.
                        await udp.SendAsync(message, serverEndpoint, cancellationToken);

                        Console.WriteLine($"SENT {payloadBytes.Length} bytes PAYLOAD, resulting in {message.Length} bytes ENCRYPTED MESSAGE");
                    }
                }

                // The console thread reades lines one at a time and
                // enqueues them for sending.
                var consoleReadThread = new Thread(_ =>
                {
                    for (; ;)
                    {
                        messages.Enqueue(Console.ReadLine());
                        semaphore.Release();
                    }
                });
                // background threads are terminated when the program exits
                consoleReadThread.IsBackground = true;
                consoleReadThread.Start();

                await Task.WhenAll(ReceiveTask(), SendTask());
            }
        }
Ejemplo n.º 3
0
        public void ReferenceTest1()
        {
            var message1 = new byte[] { 0x3c, 0x07, 0x3f, 0x70, 0xe7, 0xee, 0x7f, 0x88, 0x34, 0x14, 0x8e, 0x1a, 0xb8, 0xb4, 0xd4, 0x33 };
            var message2 = new byte[] { 0x73, 0x17, 0xa6, 0x4a, 0x5c, 0xb5, 0x1c, 0x5f, 0xda, 0x61, 0x33, 0x4e, 0xde, 0x38, 0x54, 0x97, 0xc6, 0x95, 0x14, 0xc6, 0x4b, 0x60, 0xf8, 0xd5, 0x32, 0x37, 0x38, 0xc8, 0x01, 0x38, 0x28, 0x8b };
            var message3 = new byte[] { 0x32, 0x12, 0x57, 0x18, 0x87, 0xa2, 0x26, 0x2a, 0x91, 0x3e, 0xf1, 0xa5, 0x07, 0x76, 0x0f, 0x6d, 0xa2, 0x09, 0x6a, 0x7b, 0xa4, 0x59, 0x5d, 0xc6, 0x2b, 0xca, 0x0e, 0xce, 0xd2, 0xf7, 0xb3, 0x4f, 0x01, 0x52, 0x1c, 0x07, 0x59, 0x06, 0x7b, 0x2a, 0x4c, 0x57, 0xeb, 0x45, 0x64, 0x37, 0x9c, 0xe5, 0x22, 0xcd, 0x77, 0x19, 0x29, 0xe3, 0x6e, 0x21, 0xbf, 0x11, 0x40, 0x6a, 0x89, 0xc8, 0x8f, 0xb0, 0x2b, 0x8e, 0x2a, 0x33, 0x2c, 0xce, 0x24, 0x9f, 0xed, 0xec, 0x3a, 0x50, 0xae, 0x69, 0xcd, 0x99, 0xac, 0x92, 0xd7, 0xaa, 0xe7, 0xca, 0xbf, 0x7b, 0xc4, 0x36, 0xd7, 0xd8, 0x16, 0xf4, 0x59, 0x30, 0xc4, 0x8c, 0x10, 0x66, 0x6a, 0xb6, 0xf2, 0x18, 0x69, 0x8c, 0xae, 0x38, 0x32, 0x54, 0x12, 0xcb, 0x5c, 0xc7, 0x92, 0x3b, 0x3a, 0x71, 0xa4, 0xfd, 0x81, 0x46, 0xf6, 0x7d, 0xf9, 0x97, 0xeb, 0xf2, 0x5c, 0xfc, 0x4f, 0x3c, 0x9c, 0x6f, 0xd8, 0x42, 0x24, 0x11, 0x16, 0xbd, 0xaa, 0x38, 0x0f, 0x0e, 0xe2, 0x92, 0x83, 0x54, 0x0f, 0xd3, 0x6e, 0xe5, 0x2a, 0x36, 0x77, 0x14, 0x80, 0x5e, 0xf9, 0x1f, 0x5b, 0xd0, 0xb5, 0xb5, 0x57, 0x5b, 0xf1, 0x79, 0xf8, 0x30, 0x74, 0xb6, 0xbf, 0xcb, 0x4c, 0x66, 0x32, 0xeb, 0x3a, 0xed, 0x80, 0x5b, 0xd6, 0xd8, 0x57, 0xf8, 0xec, 0xf8, 0x53, 0x05, 0x9a, 0xcc, 0x7b, 0x73, 0x9a, 0xfc, 0xe3, 0x40, 0xef, 0xbb, 0x96, 0x7a, 0x98, 0x9d, 0x73, 0x1b, 0x88, 0x40, 0xbd, 0x94, 0xfc, 0x21, 0x0b, 0x0c, 0xba, 0xf6, 0xc8, 0x53, 0x3a, 0xdf, 0x1a, 0x87, 0xdc, 0xfe, 0x15, 0xa7, 0xbc, 0x0e, 0x3b, 0x3a, 0x67, 0x3b, 0x40, 0xfd, 0xab, 0xa8, 0x75, 0xa0, 0xbf, 0x6a };

            var randomC = new byte[] { 0xd4, 0xf7, 0xd4, 0x89, 0x86, 0xdc, 0x90, 0xc8, 0x62, 0x5b, 0xb7, 0x8d, 0xc5, 0x25, 0x51, 0xd4, 0xc2, 0x1d, 0xf7, 0x81, 0x97, 0x33, 0x27, 0x6c, 0x37, 0x00, 0x8d, 0x3e, 0xf3, 0x27, 0xf8, 0xfe, 0x94, 0x44, 0xa0, 0x7f, 0xec, 0xb6, 0x35, 0xe4, 0x4a, 0xb8, 0xaf, 0x49, 0x87, 0x48, 0xfd, 0x6c, 0xdf, 0x77, 0x21, 0xbe, 0xfa, 0xfa, 0x3b, 0x3a, 0x3a, 0x40, 0x4c, 0x39, 0x06, 0xc6, 0x87, 0xcf, 0xc2, 0xff, 0xc0, 0x1e, 0xa2, 0x4e, 0x95, 0xc4, 0x45, 0xc1, 0xb1, 0x88, 0x2d, 0x78, 0x6d, 0xc6, 0xca, 0x4f, 0xf4, 0xff, 0x4e, 0xe3, 0x49, 0x8a, 0x07, 0x0d, 0x08, 0x11, 0xb4, 0xed, 0x19, 0xa3, 0xdb, 0xa8, 0x02, 0x4f, 0x3c, 0x1e, 0x39, 0xb0, 0x29, 0xc6, 0xa9, 0x24, 0xdc, 0x2d, 0x94, 0xf6, 0x08, 0x40, 0x29, 0xab, 0x9c, 0x48, 0xe9, 0x6f, 0x2b, 0x7e, 0xc1, 0xd8, 0x93, 0xde, 0x33, 0x51, 0x69, 0xcd, 0xf3, 0x91, 0xd9, 0x29, 0xa7, 0x96, 0x29, 0xdb, 0xc3, 0xcb, 0xa2, 0xa4, 0x40, 0x52, 0x83, 0x77, 0x5b, 0x48, 0xb5, 0xbf, 0xb7, 0xde, 0x78, 0x1e, 0xc3, 0xcb, 0xb6, 0x04, 0x97, 0xf6, 0x0f, 0x4b, 0x94, 0xc8, 0xc6, 0xa6, 0x6d, 0x6c, 0x09, 0x45, 0x72, 0x7e, 0x07, 0x1d, 0xc5, 0x77, 0xc8, 0x48, 0x21, 0xa2, 0xba, 0xad, 0xe0, 0x4d, 0xef, 0x4b, 0x4c, 0x55, 0x18, 0xed, 0x52, 0x32, 0x67, 0xea, 0x8d, 0x40, 0x2c, 0xab, 0x59, 0x96, 0x30, 0x49, 0x90, 0xb5, 0x19, 0xef, 0x86, 0xf9, 0x2e, 0x20, 0xa3, 0x4b, 0x8a, 0xfd, 0xe2, 0x9a, 0xfa, 0x99, 0x45, 0x84, 0x72, 0x7f, 0x50, 0x49, 0x85, 0xda, 0x08, 0x3d, 0x7f, 0x0d, 0xe6, 0x0d, 0x35, 0x31, 0xa2, 0x24, 0xda, 0x42, 0x2f, 0x69, 0x58, 0x8b, 0x4a, 0x61, 0xaf, 0xb2, 0x11, 0x4c, 0x36, 0x1a, 0x67, 0x38, 0xc5, 0xd0, 0xac, 0x0c };
            var randomS = new byte[] { 0xc9, 0x06, 0xbc, 0xd2, 0xe9, 0xdb, 0x8f, 0x5e, 0x47, 0x26, 0x91, 0xa0, 0xe4, 0xc9, 0xb3, 0x24, 0xf2, 0x9d, 0xfb, 0x2f, 0x33, 0xd7, 0x9c, 0x45, 0x1d, 0xc8, 0x68, 0xbf, 0x9a, 0xfa, 0xb6, 0x56, 0xa0, 0x1a, 0x84, 0xab, 0xdd, 0x53, 0xfc, 0x78, 0x46, 0x72, 0xdf, 0x3e, 0x49, 0x74, 0x76, 0x8c, 0xbf, 0xbf, 0x35, 0x2f, 0xe9, 0xd9, 0x91, 0x54, 0x0c, 0x5d, 0x80, 0x46, 0xb5, 0xee, 0x85, 0x6c, 0xee, 0xf8, 0x4a, 0x66, 0x1f, 0xac, 0xe2, 0x08, 0x14, 0xf6, 0x84, 0xdd, 0xe7, 0xb2, 0x86, 0x77, 0xdf, 0xd2, 0x53, 0x74, 0xb6, 0xd3, 0xce, 0xb7, 0x61, 0xdd, 0x23, 0x46, 0x4d, 0xf8, 0xfc, 0x0c, 0x9b, 0x02, 0xf3, 0x6f, 0x3f, 0x2f, 0x9a, 0x52, 0xaa, 0xc5, 0x67, 0x11, 0xbf, 0x89, 0x97, 0xf5, 0xb9, 0xc4, 0x5d, 0x25, 0x49, 0x68, 0x57, 0x80, 0x07, 0x3c, 0x21, 0x5a, 0x25, 0xaf, 0x23, 0xbc, 0x46, 0x8b, 0xc7, 0x97, 0xbe, 0xe5, 0xec, 0xfc, 0xd1, 0x9e, 0xde, 0x7d, 0x37, 0xce, 0x5f, 0x2e, 0x76, 0x9c, 0x81, 0x72, 0xfb, 0xe9, 0x01, 0x37, 0xde, 0x3a, 0xb5, 0xf1, 0x02, 0xc5, 0x6d, 0x19, 0xce, 0xdf, 0xda, 0xbb, 0xb1, 0xaa, 0x05, 0xcd, 0x80, 0x78, 0xc4, 0x1e, 0x72, 0x21, 0x72, 0x28, 0xe4, 0xce, 0xe1, 0x3b, 0x58, 0x66, 0x5b, 0x18, 0xaa, 0xe0, 0x12, 0x00, 0xfe, 0x11, 0xcf, 0x41, 0x8e, 0xc0, 0x89, 0xa2, 0x9d, 0x7c, 0x55, 0x78, 0x0b, 0x03, 0xb9, 0x63, 0x50, 0x2d, 0x44, 0x90, 0xd1, 0xf1, 0x36, 0xc9, 0x04, 0x8f, 0xcc, 0x1b, 0xc2, 0xef, 0x76, 0x3b, 0x11, 0x77, 0x59, 0xf4, 0x5b, 0xea, 0xdf, 0x56, 0xd4, 0x81, 0x8b, 0x36, 0xfd, 0x02, 0x06, 0xf1, 0x41, 0x4f, 0x47, 0xbc, 0x59, 0x57, 0x31, 0x9a, 0x1b, 0xfa, 0x8a, 0xf9, 0xd8, 0x3e, 0x0c, 0x28, 0x2c, 0xb1, 0xc2, 0x1d };

            var applicationKey = new byte[] { 0xef, 0x3f, 0xb4, 0x74, 0xe1, 0x41, 0x07, 0x76, 0xe5, 0xbf, 0x85, 0x94, 0xd2, 0x95, 0xb0, 0x5f, 0x3e, 0x04, 0xe2, 0x21, 0xce, 0x5a, 0x3e, 0xf3, 0xee, 0x40, 0xca, 0x33, 0x24, 0x78, 0xbb, 0x78 };
            var privateKeyC    = new byte[] { 0x47, 0x3e, 0x33, 0x6b, 0xa2, 0xc7, 0xfb, 0xae, 0xc3, 0x9f, 0x38, 0xd6, 0x2e, 0x3e, 0x8d, 0xda, 0xc8, 0x8f, 0x09, 0x0f, 0xb6, 0xbe, 0x85, 0xd7, 0x3c, 0xc5, 0xf6, 0x11, 0x39, 0xa6, 0x3b, 0xb0 };
            var privateKeyS    = new byte[] { 0x69, 0xb2, 0x36, 0x09, 0x02, 0x55, 0x3c, 0xf8, 0x65, 0x79, 0x79, 0xfb, 0xea, 0xc6, 0xcf, 0x80, 0x2d, 0x49, 0xd1, 0x30, 0x73, 0xd9, 0xa7, 0x11, 0x48, 0x4f, 0x42, 0x9f, 0x85, 0x12, 0x11, 0x40 };

            //var rng = new RandomNumberGenerator();
            //message1 = rng.Generate(16);
            //message2 = rng.Generate(32);
            //message3 = rng.Generate(256 - 16);
            //randomC = rng.Generate(256);
            //randomS = rng.Generate(256);
            //applicationKey = rng.Generate(32);
            //privateKeyC = KeyGeneration.GeneratePrivateKey();
            //privateKeyS = KeyGeneration.GeneratePrivateKey();

            //BytePrintHelper.PrintAsByteArray(nameof(message1), message1);
            //BytePrintHelper.PrintAsByteArray(nameof(message2), message2);
            //BytePrintHelper.PrintAsByteArray(nameof(message3), message3);
            //BytePrintHelper.PrintAsByteArray(nameof(randomC), randomC);
            //BytePrintHelper.PrintAsByteArray(nameof(randomS), randomS);
            //BytePrintHelper.PrintAsByteArray(nameof(applicationKey), applicationKey);
            //BytePrintHelper.PrintAsByteArray(nameof(privateKeyC), privateKeyC);
            //BytePrintHelper.PrintAsByteArray(nameof(privateKeyS), privateKeyS);

            var ec1  = new byte[] { 0xd4, 0xf7, 0xd4, 0x89, 0x86, 0xdc, 0x90, 0xc8, 0x62, 0x5b, 0xb7, 0x8d, 0xc5, 0x25, 0x51, 0xd4, 0xb1, 0x4b, 0xdd, 0x0d, 0x6f, 0xda, 0x36, 0x98, 0x3e, 0xb9, 0xd0, 0x1e, 0x90, 0x93, 0x7d, 0x7c, 0x3d, 0x96, 0x17, 0xe1, 0x9e, 0x13, 0xa8, 0xec, 0x29, 0x7f, 0xac, 0x75, 0xaf, 0xff, 0x65, 0xf7, 0x1a, 0xf8, 0xc3, 0x52, 0xa1, 0xb7, 0x6f, 0x8d, 0x37, 0x1b, 0xc5, 0xec, 0x53, 0x18, 0xfe, 0x42, 0x1e, 0x21, 0xf1, 0xf2, 0xbc, 0x36, 0x45, 0xee, 0xe4, 0x12, 0xb9, 0xb2, 0xac, 0x7e, 0x46, 0xd0, 0xe9, 0x7f, 0x43, 0xf3, 0xa9, 0xe8, 0xa5, 0xec, 0xf4, 0xcf, 0xa9, 0x27, 0x16, 0x72, 0x30, 0xd4, 0xb0, 0x42, 0x31, 0x71, 0xa5, 0xfc, 0xe6, 0x52, 0xe5, 0x56, 0x62, 0x26, 0x64, 0x3e, 0xe7, 0xa3, 0x39, 0x0a, 0x1f, 0x24, 0x2a, 0xac, 0xf8, 0xb5, 0x37, 0x2e, 0x1e, 0x90, 0x80, 0x36, 0x17, 0x2c, 0x71, 0x17, 0x31, 0xac, 0x25, 0x23, 0xdb, 0x2a, 0x2c, 0x42, 0x1e, 0x29, 0x34, 0x4c, 0x1b, 0x2d, 0xe9, 0x2c, 0x41, 0x81, 0xef, 0x95, 0x62, 0xeb, 0x95, 0xa0, 0x64, 0xf1 };
            var es2  = new byte[] { 0xc9, 0x06, 0xbc, 0xd2, 0xe9, 0xdb, 0x8f, 0x5e, 0x47, 0x26, 0x91, 0xa0, 0xe4, 0xc9, 0xb3, 0x24, 0x4a, 0xb3, 0x7d, 0xdc, 0x64, 0x3b, 0x1e, 0xb2, 0xa9, 0xc6, 0xcb, 0xba, 0x5c, 0x56, 0x26, 0x0e, 0x19, 0x39, 0x9f, 0x09, 0xa5, 0x36, 0xfc, 0x44, 0x76, 0xfc, 0x8d, 0xb6, 0x1d, 0xdd, 0x20, 0x2e, 0xd4, 0xf7, 0xd4, 0x89, 0x86, 0xdc, 0x90, 0xc8, 0x62, 0x5b, 0xb7, 0x8d, 0xc5, 0x25, 0x51, 0xd4, 0x6a, 0x42, 0x9b, 0x65, 0x66, 0xe3, 0x63, 0xe5, 0xe2, 0x9c, 0xe9, 0x36, 0xb3, 0xd6, 0xaf, 0xd0, 0xa6, 0x02, 0x38, 0x4e, 0xdf, 0x86, 0x7d, 0xf2, 0x8a, 0xfe, 0xf4, 0x5d, 0xe5, 0x87, 0xd9, 0x0e, 0x52, 0xd1, 0x12, 0x1b, 0xe5, 0x67, 0x5f, 0xec, 0xda, 0x61, 0x74, 0x70, 0x6d, 0x2c, 0x0e, 0x52, 0x87, 0x84, 0x9f, 0xcd, 0x25, 0x04, 0xc8, 0x6e, 0x87, 0xbf, 0x0a, 0x09, 0x2e, 0x31, 0x89, 0x12, 0xb8, 0x6d, 0x9e, 0x99, 0xee, 0xf5, 0x79, 0xb6, 0x98, 0xac, 0x4a, 0xe3, 0xb2, 0x12, 0xf4, 0xcb, 0xf0, 0xaa, 0xc8, 0x50, 0xf1, 0x40, 0xcb, 0x04, 0x73, 0xb6, 0x38, 0x5d, 0xbc, 0xcb, 0xbd, 0xff, 0xf9, 0xbb, 0xdc, 0x67, 0x78, 0xed, 0xd9, 0xbb, 0x52, 0x72, 0x3e, 0x1b, 0xe9, 0x20, 0x87, 0x79, 0x09, 0xfc, 0x29, 0xbf, 0x4e, 0x62, 0x9c, 0x13, 0x31, 0x21, 0xc9, 0x71, 0xd2, 0x66, 0x5e, 0x47, 0xca, 0xee, 0xa2, 0x5f, 0x4a, 0x95, 0xb3, 0x67, 0x36, 0x00, 0x73, 0x19, 0x4f, 0x86, 0xab, 0xf1, 0x3e, 0xd4, 0xce, 0x0c, 0x9a, 0xf3, 0x68, 0x03, 0x8a, 0x36, 0x79, 0x6e, 0xb6, 0x0a, 0x7d, 0x59, 0x64, 0xf1, 0xd0, 0x32, 0xa9, 0x40, 0x94, 0x93, 0x71, 0x5e, 0x36, 0x72 };
            var ec3  = new byte[] { 0xa0, 0xd7, 0xb7, 0xfa, 0x7e, 0x1b, 0xbc, 0xad, 0xce, 0x9b, 0x4b, 0xdd, 0xfc, 0x27, 0x3f, 0x06, 0x2e, 0xef, 0x91, 0xf3, 0x4e, 0x5b, 0xd9, 0xfd, 0x86, 0x81, 0x4f, 0x1f, 0xa9, 0x3f, 0x26, 0xd4, 0x0d, 0xdc, 0x48, 0x5c, 0x0b, 0xe8, 0xbf, 0x70, 0xa5, 0xe2, 0xc5, 0xa9, 0x62, 0xde, 0xf9, 0x0b, 0xbc, 0xe6, 0xcd, 0x9a, 0x47, 0x4c, 0x99, 0xa8, 0xe8, 0x11, 0x9c, 0x00, 0x0d, 0x80, 0x68, 0xdf };
            var es4  = new byte[] { 0x29, 0xa8, 0xbb, 0x57, 0x5f, 0xa5, 0x00, 0x07, 0x8a, 0x4a, 0x56, 0x47, 0x2b, 0xc5, 0x50, 0x3f, 0x3b, 0x7f, 0xe8, 0x5d, 0x6e, 0x7f, 0x8d, 0x5e, 0x98, 0x68, 0x90, 0x9a, 0x2c, 0x5b, 0xb9, 0x89 };
            var ec6  = new byte[] { 0x29, 0x3f, 0x3d, 0x0f, 0xf8, 0xad, 0x1f, 0xe2, 0x17, 0x69, 0x8f, 0x26, 0xf4, 0x40, 0xe0, 0x87, 0x25, 0xe1, 0xcc, 0x1b, 0x91, 0x89, 0x70, 0x88, 0x38, 0xbc, 0x49, 0x90, 0x2f, 0x68, 0x9f, 0xb2, 0xcc, 0x3b, 0x43, 0xd7, 0xea, 0x95, 0xf7, 0xd3, 0x53, 0x44, 0x41, 0x7b, 0x80, 0x0c, 0xe5, 0x2d, 0x8d, 0x97, 0x29, 0x40, 0xac, 0xd0, 0x5d, 0xbd, 0xea, 0xec, 0xaf, 0xa3, 0xcb, 0x7a, 0x77, 0x77 };
            var es7  = new byte[] { 0x3c, 0x07, 0x3f, 0x70, 0xe7, 0xee, 0x7f, 0x88, 0x34, 0x14, 0x8e, 0x1a, 0xb8, 0xb4, 0xd4, 0x33 };
            var es8  = new byte[] { 0x17, 0x57, 0x08, 0x06, 0xa3, 0x70, 0x18, 0xf2, 0xda, 0xaf, 0x2e, 0x87, 0x7d, 0xc8, 0xa5, 0x3e, 0xc2, 0xcb, 0x63, 0x40, 0xaa, 0x9a, 0xfb, 0xd7, 0x9a, 0x7b, 0xca, 0xe5, 0xfe, 0x3e, 0xed, 0x04, 0xaf, 0x56, 0x97, 0x2c, 0x9e, 0x3a, 0xea, 0xaa, 0x68, 0x9b, 0x4d, 0xd8, 0x9f, 0xe7, 0x25, 0x15, 0xb5, 0xf6, 0x69, 0x1a, 0xde, 0x61, 0xe2, 0x6e, 0xe9, 0x19, 0xd7, 0x4b, 0x05, 0x01, 0xaf, 0x3d, 0x0d, 0x2b, 0x35, 0x9a, 0xf3, 0x2c, 0xee, 0xeb, 0x0a, 0x68, 0x47, 0xe5, 0xd2, 0xf2, 0xee, 0x90 };
            var ec9  = new byte[] { 0x73, 0x17, 0xa6, 0x4a, 0x5c, 0xb5, 0x1c, 0x5f, 0xda, 0x61, 0x33, 0x4e, 0xde, 0x38, 0x54, 0x97, 0xc6, 0x95, 0x14, 0xc6, 0x4b, 0x60, 0xf8, 0xd5, 0x32, 0x37, 0x38, 0xc8, 0x01, 0x38, 0x28, 0x8b };
            var ec10 = new byte[] { 0xf7, 0x11, 0x86, 0xd0, 0x87, 0x67, 0xf2, 0xf1, 0x98, 0x75, 0xe4, 0x12, 0xd6, 0xff, 0x75, 0x4d, 0xfd, 0x23, 0x8a, 0xf8, 0x71, 0x00, 0x0f, 0xe1, 0x19, 0x74, 0x17, 0x0d, 0xc0, 0xf1, 0xb1, 0x75, 0x2b, 0x74, 0xf7, 0x5e, 0xd2, 0x58, 0x01, 0x2a, 0xa4, 0x39, 0x51, 0xe3, 0x6f, 0x5b, 0x24, 0x01, 0x19, 0x86, 0x9a, 0xf6, 0x8c, 0x37, 0x43, 0xb1, 0xfd, 0x0a, 0xc0, 0x37, 0xd0, 0x02, 0x0a, 0xc8, 0x1c, 0x74, 0x2b, 0x26, 0x17, 0xde, 0x34, 0x0a, 0x21, 0x8b, 0xda, 0x1f, 0xae, 0x19, 0x81, 0x14, 0x97, 0x60, 0x62, 0x38, 0x48, 0xb0, 0x99, 0x3e, 0x82, 0x19, 0xad, 0xdd, 0xb3, 0x4e, 0x63, 0x9f, 0x4f, 0x25, 0xe7, 0x43, 0xe7, 0x30, 0x1b, 0xde, 0x14, 0x8b, 0x55, 0xd7, 0xe9, 0x69, 0x75, 0x03, 0x36, 0xce, 0xd7, 0xab, 0x00, 0x4e, 0x1c, 0xaa, 0xfd, 0xd7, 0x35, 0x1f, 0x45, 0x79, 0x02, 0x7a, 0x86, 0x1c, 0x7b, 0x1e, 0xbc, 0x13, 0x1f, 0xa6, 0x1e, 0x10, 0x27, 0xcd, 0xb4, 0x20, 0x8d, 0xbd, 0x1e, 0xe1, 0x6b, 0xe2, 0xfb, 0xfd, 0xc5, 0x54, 0xf5, 0x70, 0x54, 0xb9, 0xe2, 0x53, 0xe0, 0x5a, 0x7b, 0xed, 0x0a, 0x7e, 0x24, 0xa8, 0x39, 0x42, 0x5b, 0xa3, 0x90, 0x81, 0x96, 0x15, 0x97, 0xd0, 0x0a, 0x5f, 0x4a, 0x33, 0xfb, 0x1b, 0x73, 0x29, 0x09, 0xa4, 0x8d, 0xb9, 0xcc, 0xf5, 0xcd, 0x5f, 0x0b, 0x41, 0xf2, 0xf7, 0xd1, 0xc9, 0xab, 0x9f, 0x4d, 0x63, 0x38, 0xaa, 0x68, 0x52, 0xcc, 0xe9, 0x3d, 0x72, 0x68, 0xcf, 0xa9, 0x96, 0x9b, 0xa8, 0x63, 0xb3, 0xa9, 0xb2, 0x44, 0x70, 0x92, 0x7d, 0x1c, 0x51, 0x30, 0xb0, 0x3a, 0xd2, 0x28, 0xb1, 0x02, 0x01, 0xf0, 0x0d, 0x28, 0x35, 0x5d, 0x44, 0x3a, 0x1d, 0xc9, 0xc4, 0xc5, 0x1a, 0x3d, 0xd4, 0xdf, 0xb6, 0x1b, 0xbb, 0xb8, 0x38, 0x95, 0xde };
            var es11 = new byte[] { 0x32, 0x12, 0x57, 0x18, 0x87, 0xa2, 0x26, 0x2a, 0x91, 0x3e, 0xf1, 0xa5, 0x07, 0x76, 0x0f, 0x6d, 0xa2, 0x09, 0x6a, 0x7b, 0xa4, 0x59, 0x5d, 0xc6, 0x2b, 0xca, 0x0e, 0xce, 0xd2, 0xf7, 0xb3, 0x4f, 0x01, 0x52, 0x1c, 0x07, 0x59, 0x06, 0x7b, 0x2a, 0x4c, 0x57, 0xeb, 0x45, 0x64, 0x37, 0x9c, 0xe5, 0x22, 0xcd, 0x77, 0x19, 0x29, 0xe3, 0x6e, 0x21, 0xbf, 0x11, 0x40, 0x6a, 0x89, 0xc8, 0x8f, 0xb0, 0x2b, 0x8e, 0x2a, 0x33, 0x2c, 0xce, 0x24, 0x9f, 0xed, 0xec, 0x3a, 0x50, 0xae, 0x69, 0xcd, 0x99, 0xac, 0x92, 0xd7, 0xaa, 0xe7, 0xca, 0xbf, 0x7b, 0xc4, 0x36, 0xd7, 0xd8, 0x16, 0xf4, 0x59, 0x30, 0xc4, 0x8c, 0x10, 0x66, 0x6a, 0xb6, 0xf2, 0x18, 0x69, 0x8c, 0xae, 0x38, 0x32, 0x54, 0x12, 0xcb, 0x5c, 0xc7, 0x92, 0x3b, 0x3a, 0x71, 0xa4, 0xfd, 0x81, 0x46, 0xf6, 0x7d, 0xf9, 0x97, 0xeb, 0xf2, 0x5c, 0xfc, 0x4f, 0x3c, 0x9c, 0x6f, 0xd8, 0x42, 0x24, 0x11, 0x16, 0xbd, 0xaa, 0x38, 0x0f, 0x0e, 0xe2, 0x92, 0x83, 0x54, 0x0f, 0xd3, 0x6e, 0xe5, 0x2a, 0x36, 0x77, 0x14, 0x80, 0x5e, 0xf9, 0x1f, 0x5b, 0xd0, 0xb5, 0xb5, 0x57, 0x5b, 0xf1, 0x79, 0xf8, 0x30, 0x74, 0xb6, 0xbf, 0xcb, 0x4c, 0x66, 0x32, 0xeb, 0x3a, 0xed, 0x80, 0x5b, 0xd6, 0xd8, 0x57, 0xf8, 0xec, 0xf8, 0x53, 0x05, 0x9a, 0xcc, 0x7b, 0x73, 0x9a, 0xfc, 0xe3, 0x40, 0xef, 0xbb, 0x96, 0x7a, 0x98, 0x9d, 0x73, 0x1b, 0x88, 0x40, 0xbd, 0x94, 0xfc, 0x21, 0x0b, 0x0c, 0xba, 0xf6, 0xc8, 0x53, 0x3a, 0xdf, 0x1a, 0x87, 0xdc, 0xfe, 0x15, 0xa7, 0xbc, 0x0e, 0x3b, 0x3a, 0x67, 0x3b, 0x40, 0xfd, 0xab, 0xa8, 0x75, 0xa0, 0xbf, 0x6a };


            var configC = new MicroRatchetConfiguration
            {
                IsClient           = true,
                MaximumMessageSize = 256,
                MinimumMessageSize = 32,
                ApplicationKey     = applicationKey
            };
            var configS = new MicroRatchetConfiguration
            {
                IsClient           = false,
                MaximumMessageSize = 256,
                MinimumMessageSize = 32,
                ApplicationKey     = applicationKey
            };

            var rngC       = new FakeRandomNumberGenerator(randomC);
            var signatureC = new Signature(privateKeyC, new SecureRandom(rngC));
            var rngS       = new FakeRandomNumberGenerator(randomS);
            var signatureS = new Signature(privateKeyS, new SecureRandom(rngS));

            var servicesC = new BouncyCastleServices(privateKeyC)
            {
                Signature             = signatureC,
                RandomNumberGenerator = rngC,
            };

            servicesC.KeyAgreementFactory = new DeterministicKexFac(servicesC.KeyAgreementFactory, rngC);

            var servicesS = new BouncyCastleServices(privateKeyS)
            {
                Signature             = signatureS,
                RandomNumberGenerator = rngS,
            };

            servicesS.KeyAgreementFactory = new DeterministicKexFac(servicesS.KeyAgreementFactory, rngS);

            var C = new MicroRatchetContext(servicesC, configC, null);
            var S = new MicroRatchetContext(servicesS, configS, null);

            var c1 = C.InitiateInitialization();
            var s2 = S.Receive(c1).ToSendBack;
            var c3 = C.Receive(s2).ToSendBack;
            var s4 = S.Receive(c3).ToSendBack;
            var c5 = C.Receive(s4).ToSendBack;

            //BytePrintHelper.PrintAsByteArray("ec1", c1);
            //BytePrintHelper.PrintAsByteArray("es2", s2);
            //BytePrintHelper.PrintAsByteArray("ec3", c3);
            //BytePrintHelper.PrintAsByteArray("es4", s4);

            Assert.Equal(ec1, c1);
            Assert.Equal(es2, s2);
            Assert.Equal(ec3, c3);
            Assert.Equal(es4, s4);
            Assert.Null(c5);

            var c6  = C.Send(message1);
            var s7  = S.Receive(c6).Payload;
            var s8  = S.Send(message2);
            var c9  = C.Receive(s8).Payload;
            var c10 = C.Send(message3);
            var s11 = S.Receive(c10).Payload;

            //BytePrintHelper.PrintAsByteArray("ec6", c6);
            //BytePrintHelper.PrintAsByteArray("es7", s7);
            //BytePrintHelper.PrintAsByteArray("es8", s8);
            //BytePrintHelper.PrintAsByteArray("ec9", c9);
            //BytePrintHelper.PrintAsByteArray("ec10", c10);
            //BytePrintHelper.PrintAsByteArray("es11", s11);

            Assert.Equal(ec6, c6);
            Assert.Equal(es7, s7);
            Assert.Equal(es8, s8);
            Assert.Equal(ec9, c9);
            Assert.Equal(ec10, c10);
            Assert.Equal(es11, s11);

            Assert.Equal(message1, s7);
            Assert.Equal(message2, c9);
            Assert.Equal(message3, s11);
        }