public Connection()
{
salsa = new Salsa20();
salsa.KeySize = 128;
salsa.GenerateKey();
salsa.GenerateIV();
salsaEncryptor = salsa.CreateEncryptor();
}
public void Engage()
{
try
{
if (Server)
{
// Send my salsa key
byte[] my_salsa = new byte[24];
Array.Copy(salsa.Key, 0, my_salsa, 0, 16);
Array.Copy(salsa.IV, 0, my_salsa, 16, 8);
Client.Send(my_salsa);
log("Sent MySalsa.");
// Wait for client key
byte[] remote_salsa = ReadNextBlock();
Salsa20 salsa2 = new Salsa20();
salsa2.Key = new byte[16];
salsa2.IV = new byte[8];
Array.Copy(remote_salsa, 0, salsa2.Key, 0, 16);
Array.Copy(remote_salsa, 16, salsa2.IV, 0, 8);
salsaDecryptor = salsa2.CreateDecryptor();
log("Received RemoteSalsa.");
onConnect();
}
else
{
// Wait for server salsa
byte[] remote_salsa = ReadNextBlock();
Salsa20 salsa2 = new Salsa20();
salsa2.Key = new byte[16];
salsa2.IV = new byte[8];
Array.Copy(remote_salsa, 0, salsa2.Key, 0, 16);
Array.Copy(remote_salsa, 16, salsa2.IV, 0, 8);
salsaDecryptor = salsa2.CreateDecryptor();
log("Received RemoteSalsa.");
// Send my salsa encrypted
byte[] my_salsa = new byte[24];
Array.Copy(salsa.Key, 0, my_salsa, 0, 16);
Array.Copy(salsa.IV, 0, my_salsa, 16, 8);
Client.Send(my_salsa);
log("Sent MySalsa.");
onConnect();
}
}
catch (Exception e)
{
Console.WriteLine("ERROR during handshake: " + e.Message + "\n" + e.StackTrace);
}
}
