//Отправка сообщений private void SendMessage() { Socket socket = new Socket(IpServer.AddressFamily, SocketType.Stream, ProtocolType.Tcp); try { socket.Connect(IpServer, port); label4.Text = "Подключение с сервером установлено"; Send.Enabled = true; byte[] key = Encoding.UTF8.GetBytes("Key"); RC4 encoder = new RC4(key); string message = DateTime.Now.ToString("[HH:mm:ss]") + Login + ": " + richTextBox1.Text; byte[] encryptBytes = Encoding.UTF8.GetBytes(message); byte[] result = encoder.Encode(encryptBytes, encryptBytes.Length); int SendMsg = socket.Send(result); byte[] buffer = new byte[1024]; int bytesRec = socket.Receive(buffer); RC4 decoder = new RC4(key); byte[] decryptedBytes = decoder.Decode(result, result.Length); string message1 = Encoding.UTF8.GetString(decryptedBytes); richTextBox2.Text = richTextBox2.Text + message1 + "\r\n"; using (var sw = File.AppendText(@"Log_chat.txt")) { sw.WriteLine(message + "\r\n"); } richTextBox1.Clear(); } catch (Exception ex) { MessageBox.Show(ex.Message); } }
private void DeCipher(string outputFile) { byte[] bytes = File.ReadAllBytes(outputFile); RC4 decoder = new RC4(key); byte[] result = decoder.Decode(bytes, bytes.Length); File.WriteAllBytes(outputFile, result); }
public static byte[] RC4_Decrypt_Method(byte[] raw_resource) { byte[] decoded = null; for (int i = 0; i < Helper.RC4keys.Count; i++) { RC4 rc4 = new RC4(Encoding.ASCII.GetBytes(Helper.RC4keys[i])); decoded = rc4.Decode(raw_resource, raw_resource.Length); if (decoded.Take(2).SequenceEqual(valid_gzip)) { decoded = gzip_decompress(decoded); return(decoded); } else { return(decoded); } } return(null); }
public void loadSeparatedAssets(string projectPath, bool locked) { _projectPath = projectPath; Assets.items.Clear(); string[] packs = Directory.GetFiles(Path.Combine(projectPath), "*.pak"); for (int i = 0; i < packs.Length; i++) { AssetList list = new AssetList(); if (locked) { byte[] key = ByteConverter.GetBytes("dfy3hfi3789y478yhge7y578yrhgiudhr8967498u839udhkjghjk"); RC4 rc4 = new RC4(key); byte[] file = File.ReadAllBytes(packs[i]); file = rc4.Decode(file, file.Length); MemoryStream ms = new MemoryStream(); ms.Write(file, 0, file.Length); ms.Seek(0, SeekOrigin.Begin); list = (AssetList)Serialization.deserialize(ms); ms.Dispose(); } else { list = (AssetList)Serialization.deserialize(packs[i]); } for (int j = 0; j < list.Count; j++) { Assets.items.Add(list[j]); } } if (Assets.items.Count > 0) setReferences(); }