private void buttonLogin_Click(object sender, EventArgs e)
{
UdpClient klienti = new UdpClient();
Socket newSocket = new Socket(AddressFamily.InterNetwork,
SocketType.Dgram, ProtocolType.Udp);
IPEndPoint ep = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 12000);
EndPoint tempRemote = (EndPoint)ep;
klienti.Connect(ep);
byte[] bytesend = Encoding.ASCII.GetBytes(textBoxUsername.Text + ' ' + textBoxPassword.Text);
klienti.Send(bytesend, bytesend.Length);
byte[] receivedData = klienti.Receive(ref ep);
if (string.Equals(Encoding.ASCII.GetString(receivedData), "Wrong password/username"))
{
textBoxUsername.Text = "";
textBoxPassword.Text = "";
Console.WriteLine(Encoding.ASCII.GetString(receivedData));
grade.Text = Encoding.ASCII.GetString(receivedData);
}
Console.WriteLine(Encoding.ASCII.GetString(receivedData));
grade.Text = Encoding.ASCII.GetString(receivedData);
X509Certificate2 cert = GetCertificateFromStore("CN=RootCA");
if (cert == null)
{
Console.WriteLine("Certificate 'CN=CERT_SIGN_TEST_CERT' not found.");
Console.ReadLine();
}
if (Validate())
{
string email = textBoxUsername.Text.Trim();
string password = textBoxPassword.Text.Trim();
DES des = new DES();
string mesazhi = email + ":" + password + ":" + "blla";
Console.WriteLine(mesazhi);
byte[] encrytedData = des.Enkripto(mesazhi);
byte[] IV = des.getIV();
byte[] key = des.getKey();
byte[] encryptedKey = EncryptDataOaepSha1(cert, key);
Console.WriteLine(encryptedKey.Length);
Console.WriteLine(Convert.ToBase64String(encryptedKey));
Console.WriteLine(Convert.ToBase64String(key));
Console.WriteLine(Convert.ToBase64String(DecryptDataOaepSha1(cert, encryptedKey)));
string delimiter = ".";
string fullmessageEncrypted = Convert.ToBase64String(IV) + delimiter + delimiter + Convert.ToBase64String(encrytedData);
Console.WriteLine("qa qova :" + fullmessageEncrypted.Length);
Console.WriteLine("IV:" + Convert.ToBase64String(IV));
Console.WriteLine("Qelsi: " + Convert.ToBase64String(encryptedKey));
Console.WriteLine("Mesazhi: " + Convert.ToBase64String(encrytedData));
if (Encoding.UTF8.GetString(des.Dekripto(Convert.ToBase64String(receivedData))).Substring(0, 2) == "OK")
{
MessageBox.Show("Successful Login");
}
else
{
MessageBox.Show("Login failed");
}
}
}
