private void SendClientKeyExchange()
{
var preMasterSecret = TLS12.GetPreMasterSecret();
_session.MasterSecret = TLS12.GetMasterSecret(preMasterSecret, _session.ClientRandom, _session.ServerRandom);
var clientKeyExchange = new ClientKeyExchange
{
SessionId = _session.Id,
PreMasterSecret = preMasterSecret
};
var serverRsa = Rsa.CreateFromPublicPEM(_session.RSAPublicPem);
var request = new SecurityLayerMessage
{
Type = SecurityMessageType.ClientKeyExchange,
Data = serverRsa.Encrypt(_serializer.Serialize <ClientKeyExchange>(clientKeyExchange))
};
var requestBytes = _serializer.Serialize <SecurityLayerMessage>(request);
Send(requestBytes);
var responseBytes = Receive();
var message = _serializer.Deserialize <SecurityLayerMessage>(responseBytes);
var serverFinished = _serializer.Deserialize <ServerFinished>(message.Data);
_session.Id = serverFinished.SessionId;
var keys = TLS12.GetKeys(_session.MasterSecret, _session.ClientRandom, _session.ServerRandom);
_session.ClientWriteMACKey = TLS12.GetClientWriteMACKey(keys);
_session.ServerWriteMACKey = TLS12.GetServerWriteMACKey(keys);
_session.ClientWriteKey = TLS12.GetClientWriteKey(keys);
_session.ServerWriteKey = TLS12.GetServerWriteKey(keys);
_session.IsAuthenticated = true;
}
