public void gui_key(int x)
{
Tao_p_g();
dh = new diffie_hellman(p, g);
string s = x + ";" + p + ";" + g + ";" + dh.Publickey;
senddata(s);
}
public void gen_keychung_va_send_key_public(string[] mess)
{
p = Convert.ToInt32(mess[1]);
g = Convert.ToInt32(mess[2]);
dh = new diffie_hellman(p, g);
dh.Tinh_key_chung(Convert.ToInt32(mess[3]));
key = mySHA256.ComputeHash(Encoding.ASCII.GetBytes(Convert.ToString(dh.Key_Chung)));
senddata(Convert.ToString(2 + ";" + dh.Publickey));
this.SetText(Convert.ToString(dh.Key_Chung), "Server");
textBoxkey.Text = Convert.ToBase64String(key);
}