private static void HandleHandshakeMessage2(SksMessageReceivedEventArgs sksMessageReceivedEventArgs)
{
var user = GetUserByIpAndPort(sksMessageReceivedEventArgs.FromIp, sksMessageReceivedEventArgs.FromPort);
Handshake handshake;
lock (handshakesLock)
{
handshake = Handshakes.FirstOrDefault(h => h.User == user);
}
if (handshake == null)
{
Logger.Log(LogTag, "ERROR: Handshake message 2 - handshake doesn't exist");
return;
}
var message = HandshakeMessage2.FromString(sksMessageReceivedEventArgs.Message);
user.Protocol = message.ProtocolId;
switch (message.ProtocolId)
{
case ProtocolType.None:
break;
case ProtocolType.Akep2:
InitAkep2(user, SksClientType.Local);
break;
case ProtocolType.LamportScheme:
InitLamportScheme(user, SksClientType.Local);
break;
case ProtocolType.OtwayRees:
break;
case ProtocolType.Rsa:
break;
default:
throw new ArgumentOutOfRangeException();
}
}
private static void HandleHandshakeMessage1(SksMessageReceivedEventArgs sksMessageReceivedEventArgs)
{
var user = GetUserByIpAndPort(sksMessageReceivedEventArgs.FromIp, sksMessageReceivedEventArgs.FromPort);
Handshake handshake;
lock (handshakesLock)
{
handshake = Handshakes.FirstOrDefault(h => h.User == user);
}
if (handshake != null)
{
Logger.Log(LogTag, "ERROR: Handshake message 1 - handshake already existed");
return;
}
handshake = InitHandshake(user, SksClientType.Remote);
if (handshake == null)
{
return;
}
var message = HandshakeMessage1.FromString(sksMessageReceivedEventArgs.Message);
user.Protocol = Utils.DetermineProtocol(user);
if (user.Protocol == ProtocolType.LamportScheme)
{
InitLamportScheme(user, SksClientType.Remote);
}
var newMessage = new HandshakeMessage2(user.Protocol, null);
user.SendMessage(newMessage.ToString());
handshake.IncrementMessageCount();
}