private static string getResponse64(Socket s)
{
string sResponse;
byte[] bytes = new byte[2048];
while (s.Available == 0)
{
System.Threading.Thread.Sleep(100);
}
int recvd = s.Receive(bytes, 0, s.Available, SocketFlags.None);
sResponse = Convert.ToBase64String(bytes, 0, recvd);
sResponse = RijndaelSimple.Decrypt(sResponse,
passPhrase,
saltValue,
hashAlgorithm,
passwordIterations,
initVector,
keySize);
return(sResponse);
}
private static string recvMsgPart(Socket sockin)
{
byte[] req = new byte[1024];
// Receive length
while (sockin.Available == 0)
{
System.Threading.Thread.Sleep(100);
}
int rbytes = sockin.Receive(req, 0, sockin.Available, SocketFlags.None);
string sreq = Convert.ToBase64String(req, 0, rbytes);
//MessageBox.Show(sreq);
sreq = RijndaelSimple.Decrypt(sreq,
passPhrase,
saltValue,
hashAlgorithm,
passwordIterations,
initVector,
keySize);
int msgLen = Int32.Parse(sreq);
//MessageBox.Show("length = " + msgLen);
// send ack for length
byte[] resp = new byte[2048];
string sresp = "000";
//resp = enc.GetBytes(sresp);
sresp = RijndaelSimple.Encrypt(sresp,
passPhrase,
saltValue,
hashAlgorithm,
passwordIterations,
initVector,
keySize);
resp = Convert.FromBase64String(sresp);
sockin.Send(resp, 0, resp.Length, SocketFlags.None);
// MessageBox.Show("Length ack sent");
// receive message
int rcvd = 0;
string encryptedMsgBody = "";
req = null;
req = new byte[msgLen];
while (rcvd < msgLen)
{
while (sockin.Available == 0)
{
System.Threading.Thread.Sleep(100);
}
rbytes = sockin.Receive(req, rcvd, sockin.Available, SocketFlags.None);
rcvd = rcvd + rbytes;
}
encryptedMsgBody = Convert.ToBase64String(req);
//MessageBox.Show("rbytes = " + req.Length + " length = " + encryptedMsgBody.Length);
sreq = RijndaelSimple.Decrypt(encryptedMsgBody,
passPhrase,
saltValue,
hashAlgorithm,
passwordIterations,
initVector,
keySize);
//MessageBox.Show(sreq.Substring(0,3) + " " + sreq.Substring(sreq.Length-3,2));
resp = null;
resp = new byte[2048];
sresp = "000";
//resp = enc.GetBytes(sresp);
sresp = RijndaelSimple.Encrypt(sresp,
passPhrase,
saltValue,
hashAlgorithm,
passwordIterations,
initVector,
keySize);
resp = Convert.FromBase64String(sresp);
sockin.Send(resp, 0, resp.Length, SocketFlags.None);
//MessageBox.Show("msgPart ack sent");
return(sreq);
}