protected void SendConnectChallengeResponse(IPEndPoint addr, Nonce clientNonce, bool wantsKeyExchange, bool wantsCertificate)
{
var stream = new PacketStream();
stream.Write((byte)PacketType.ConnectChallengeResponse);
clientNonce.Write(stream);
var identityToken = ComputeClientIdentityToken(addr, clientNonce);
stream.Write(identityToken);
PuzzleManager.CurrentNonce.Write(stream);
stream.Write(PuzzleManager.CurrentDifficulty);
// ReSharper disable PossibleNullReferenceException
if (stream.WriteFlag(RequiresKeyExchange || (wantsKeyExchange && PrivateKey != null)))
{
stream.Write(stream.WriteFlag(wantsCertificate && Certificate != null) ? Certificate : PrivateKey.GetPublicKey());
}
// ReSharper restore PossibleNullReferenceException
stream.SendTo(Socket, addr);
}