/// <summary>
/// Used Post-Exchange to decrypt bytes received from the client
/// </summary>
///
/// <param name="PacketStream">The stream containing the ciphertext</param>
private void ReceiveMessage(Stream PacketStream)
{
if (!_isEstablished)
throw new CryptoProcessingException("DtmKex:Receive", "The VPN has not been established!", new InvalidOperationException());
// get the header
DtmPacket pktHdr = new DtmPacket(PacketStream);
// store total bytes received
_bytesReceived += pktHdr.PayloadLength;
byte[] enc = new byte[pktHdr.PayloadLength];
// get the encrypted data
PacketStream.Read(enc, 0, enc.Length);
// decrypt it using servers processor
byte[] dec = SymmetricTransform(_cltSymProcessor, enc);
// remove padding
dec = UnwrapMessage(dec);
// return the data
if (DataReceived != null)
{
DtmDataReceivedEventArgs args = new DtmDataReceivedEventArgs(new MemoryStream(dec), 0);
DataReceived(this, args);
}
}
/// <summary>
/// Fires when a post-exchange packet containing processed data is received
/// </summary>
private void OnDataReceived(object owner, DtmDataReceivedEventArgs args)
{
Console.WriteLine(Encoding.ASCII.GetString(args.Message.ToArray()));
Console.Write(CON_TITLE);
}
