public void SendMessage(string msg)
{
if (key == null)
{
return;
}
string enMsg = CryptoClass.TDESencodeString(msg, key);
byte[] endMsg = Encoding.ASCII.GetBytes(enMsg);
try
{
ns.Write(endMsg, 0, endMsg.Length);
}
catch (Exception ex)
{
}
}
private void GetAuth()
{
//kanalas per kuri bus komunikuojama
byte[] buffer = new byte[1024];
//nuskaitom info is rysio
ns.Read(buffer, 0, buffer.Length);
int usernameLength = BitConverter.ToInt32(buffer, 0);
username = Encoding.ASCII.GetString(buffer, sizeof(int), usernameLength);
int publicKeyLength = BitConverter.ToInt32(buffer, sizeof(int) + usernameLength);
string publicKey = Encoding.ASCII.GetString(buffer, sizeof(int) * 2 + usernameLength, publicKeyLength);
DialogResult result = MessageBox.Show("Are you sure?", "Confirm", MessageBoxButtons.YesNo);
if (result == DialogResult.Yes)
{
// priimti clienta
key = CryptoClass.RandomString(20);
string encryptedKey = CryptoClass.RSAencodeString(key, publicKey);
byte[] encryptedKeyBytes = Encoding.ASCII.GetBytes(encryptedKey);
ns.Write(encryptedKeyBytes, 0, encryptedKeyBytes.Length);
// MessageBox.Show("s: "+ key);
}
else
{
dListeners(this);
ns.Close();
client.Close();
}
}
