public void SendApplicationData(byte[] data)
{
if (!_session.IsAuthenticated)
{
throw new Exception("Not authenticated");
}
var aesIv = TLS12.GetIV();
var applicationData = new ApplicationData
{
SessionId = _session.Id,
AesIv = aesIv,
Data = EncryptAes(data, _session.ClientWriteKey, aesIv)
};
var bytes = _serializer.Serialize <ApplicationData>(applicationData);
var message = new SecurityLayerMessage
{
Type = SecurityMessageType.ApplicationData,
Data = bytes
};
Send(_serializer.Serialize <SecurityLayerMessage>(message));
}
private void HandleApplicationData(byte[] message)
{
var applicationData = _serializer.Deserialize <ApplicationData>(message);
var session = _sessionCache.Get(applicationData.SessionId);
if (!session.IsAuthenticated)
{
// TODO: Send error
}
else
{
var data = DecryptAes(applicationData.Data, session.ClientWriteKey, applicationData.AesIv);
var responseData = ProcessApplicationData(data);
var aesIv = TLS12.GetIV();
var applicationDataResponse = new ApplicationData
{
SessionId = session.Id,
AesIv = aesIv,
Data = EncryptAes(responseData, session.ServerWriteKey, aesIv)
};
var bytes = _serializer.Serialize <ApplicationData>(applicationDataResponse);
Send(bytes);
}
}