private static void StartServer3()
{
listen3.Start();
try
{
while (true)
{
Console.WriteLine("127.0.0.1:12347: started (DECRYPT)...");
TcpClient client = listen3.AcceptTcpClient();
using (NetworkStream stream = client.GetStream())
{
using (StreamReader reader = new StreamReader(stream))
{
string message = reader.ReadLine();
Console.WriteLine("Получено: " + message);
var sDecrypted = Sha.Decrypt(message.Split(' ')[0], message.Split(' ')[1]);
using (StreamWriter writer = new StreamWriter(stream))
{
writer.WriteLine(sDecrypted);
}
}
}
Thread.Sleep(500);
client.Close();
}
}
catch (Exception err)
{
Console.WriteLine(err.Message);
}
}
/// <summary>
/// Decrypt a string.
/// </summary>
/// <param name="encryptedText">String to be decrypted</param>
/// <param name="password">Password used during encryption</param>
/// <exception cref="FormatException"></exception>
public static string Decrypt(string encryptedText, string password)
{
if (encryptedText == null)
{
return(null);
}
if (password == null)
{
password = String.Empty;
}
// Get the bytes of the string
var bytesToBeDecrypted = Convert.FromBase64String(encryptedText);
var passwordBytes = Encoding.UTF8.GetBytes(password);
passwordBytes = SHA256.Create().ComputeHash(passwordBytes);
var bytesDecrypted = Sha.Decrypt(bytesToBeDecrypted, passwordBytes);
return(Encoding.UTF8.GetString(bytesDecrypted));
}