private static void ExchangeKeys(object state)
{
byte num = 0;
KeyExchangeParameter parameter = (KeyExchangeParameter)state;
DiffieHellmanKeyExchange exchange = null;
try
{
exchange = new DiffieHellmanKeyExchange();
num = 1;
exchange.DeriveSharedKey(parameter.ClientPublicKey);
parameter.PublicKey = exchange.PublicKey;
parameter.SharedKey = exchange.SharedKey;
}
catch (ThreadAbortException)
{
if (log.IsWarnEnabled)
{
string message = string.Format("Key exchange was aborted\r\nstep={0}\r\nClientKey={1}", num, (parameter.ClientPublicKey == null) ? "{null}" : BitConverter.ToString(parameter.ClientPublicKey));
if (exchange != null)
{
message = message + string.Format("\r\nSecret={0}\r\nPrime={1}\r\nPublicKey={2}\r\nSharedKey={3}", new object[] { (exchange.Secret == null) ? "{null}" : exchange.Secret.ToString(), (exchange.Prime == null) ? "{null}" : exchange.Prime.ToString(), (exchange.PublicKey == null) ? "{null}" : BitConverter.ToString(exchange.PublicKey), (exchange.SharedKey == null) ? "{null}" : BitConverter.ToString(exchange.SharedKey) });
}
log.Warn(message);
}
}
}
/// <summary>
/// Initializes the peer to receive and send encrypted operations.
/// </summary>
/// <returns>
/// Returns <see cref="F:Photon.SocketServer.SendResult.Ok"/> if the event was successfully sent;
/// otherwise an error value. See <see cref="T:Photon.SocketServer.SendResult"/> for more information.
/// </returns>
public SendResult InitializeEncryption()
{
this.keyExchange = new DiffieHellmanKeyExchange();
OperationRequest request2 = new OperationRequest
{
OperationCode = 0
};
Dictionary <byte, object> dictionary = new Dictionary <byte, object>(2);
dictionary.Add(1, this.keyExchange.PublicKey);
dictionary.Add(2, (byte)0);
request2.Parameters = dictionary;
OperationRequest request = request2;
return(this.SendInternalOperationRequest(request));
}
protected virtual TlsServerKeyExchange GenerateServerKeyExchange()
{
if (PendingCrypto.Cipher.ExchangeAlgorithmType == ExchangeAlgorithmType.RsaSign)
{
HandshakeParameters.KeyExchange = new RSAKeyExchange();
return(null);
}
else if (PendingCrypto.Cipher.ExchangeAlgorithmType != ExchangeAlgorithmType.DiffieHellman)
{
throw new InvalidOperationException();
}
var signatureType = SelectSignatureAlgorithm();
var dh = DiffieHellmanKeyExchange.Create(Context, signatureType);
HandshakeParameters.KeyExchange = dh;
return(new TlsServerKeyExchange(dh));
}
protected virtual TlsServerKeyExchange GenerateServerKeyExchange ()
{
if (PendingCrypto.Cipher.ExchangeAlgorithmType == ExchangeAlgorithmType.RsaSign) {
HandshakeParameters.KeyExchange = new RSAKeyExchange ();
return null;
} else if (PendingCrypto.Cipher.ExchangeAlgorithmType != ExchangeAlgorithmType.DiffieHellman) {
throw new InvalidOperationException ();
}
var dh = new DiffieHellmanKeyExchange (Context);
HandshakeParameters.KeyExchange = dh;
return new TlsServerKeyExchange (dh);
}
