static void Main(string[] args)
{
try
{
Socket.SendTimeout = 500;
Socket.ReceiveTimeout = 500;
Socket.Connect(server, port);
var helloBytes = new byte[16];
Socket.Receive(helloBytes);
Console.WriteLine("Received hello: " + Encoding.UTF8.GetString(helloBytes));
if (!CheckConnectionChecksum(helloBytes, 16))
{
throw new Exception("Wrong connection Checksum");
}
CryptoBlock.cc_crypt_xor(helloBytes);
SHA1 sha = new SHA1Managed();
var sha1Hash = sha.ComputeHash(helloBytes);
//Init receive cripto block
ReceiveBlock.cc_crypt_init(sha1Hash, 20);
ReceiveBlock.cc_decrypt(helloBytes, 16);
//Init send cripto block
SendBlock.cc_crypt_init(helloBytes, 16);
SendBlock.cc_decrypt(sha1Hash, 20);
SendMessage(MsgTypes.MsgNoHeader, 20, sha1Hash); //Handshake
byte[] userName = new byte[20];
Array.Copy(GetBytes(username), userName, GetBytes(username).Length);
SendMessage(MsgTypes.MsgNoHeader, 20, userName); //Send username in a padded array of 20 bytes
byte[] pwd = new byte[password.Length];
Array.Copy(GetBytes(password), pwd, GetBytes(password).Length);
SendBlock.cc_encrypt(pwd, pwd.Length); //encript psw in cripto block
byte[] cCcam = { Convert.ToByte('C'), Convert.ToByte('C'), Convert.ToByte('c'),
Convert.ToByte('a'), Convert.ToByte('m'), 0 };
SendMessage(MsgTypes.MsgNoHeader, 6, cCcam); //Send "CCcam" with password encripted block
try
{
byte[] receiveBytes = new byte[20];
var recvCount = Socket.Receive(receiveBytes);
if (recvCount > 0)
{
ReceiveBlock.cc_decrypt(receiveBytes, 20);
var valid = Encoding.Default.GetString(receiveBytes).Replace("\0", "") == "CCcam";
Console.WriteLine(valid ? "Connection SUCCESS!" : "Wrong ACK received!");
if (valid && retrieveCardInfo)
{
SendClientInfo();
if (Socket.Connected)
{
ReadCardsInformation();
}
}
}
else
{
Console.WriteLine("Wrong username/password");
}
}
catch (Exception)
{
Console.WriteLine("Wrong username/password");
}
}
catch (Exception)
{
Console.WriteLine("Failed to connect");
}
Socket.Close();
}
static void Main(string[] args)
{
var server = "srv.server.com";
var port = 9999;
var username = "******";
var password = "******";
try
{
Socket.Connect(server, port);
var helloBytes = new byte[16];
Socket.Receive(helloBytes);
Console.WriteLine("Received hello: " + Encoding.UTF8.GetString(helloBytes));
if (!CheckConnectionChecksum(helloBytes, 16))
{
throw new Exception("Wrong connection Checksum");
}
CryptoBlock.cc_crypt_xor(helloBytes);
SHA1 sha = new SHA1Managed();
var sha1Hash = sha.ComputeHash(helloBytes);
//Init receive cripto block
ReceiveBlock.cc_crypt_init(sha1Hash, 20);
ReceiveBlock.cc_decrypt(helloBytes, 16);
//Init send cripto block
SendBlock.cc_crypt_init(helloBytes, 16);
SendBlock.cc_decrypt(sha1Hash, 20);
SendMsg(20, sha1Hash); //Handshake
byte[] userName = new byte[20];
Array.Copy(GetBytes(username), userName, GetBytes(username).Length);
SendMsg(20, userName); //Send username in a padded array of 20 bytes
byte[] pwd = new byte[password.Length];
Array.Copy(GetBytes(password), userName, GetBytes(password).Length);
SendBlock.cc_encrypt(pwd, pwd.Length); //encript psw in cripto block
byte[] cCcam = { Convert.ToByte('C'), Convert.ToByte('C'), Convert.ToByte('c'),
Convert.ToByte('a'), Convert.ToByte('m'), 0 };
SendMsg(6, cCcam); //Send "CCcam" with password encripted block
try
{
byte[] receiveBytes = new byte[20];
var recvCount = Socket.Receive(receiveBytes);
if (recvCount > 0)
{
ReceiveBlock.cc_decrypt(receiveBytes, 20);
Console.WriteLine(Encoding.Default.GetString(receiveBytes).Replace("\0", "") == "CCcam"
? "SUCCESS!"
: "Wrong ACK received!");
}
else
{
Console.WriteLine("Wrong username/password");
}
}
catch (Exception)
{
Console.WriteLine("Wrong username/password");
}
}
catch (Exception)
{
Console.WriteLine("Failed to connect");
}
Socket.Close();
}
