private static void HandleChatMessage(SksMessageReceivedEventArgs sksMessageReceivedEventArgs)
{
var user = GetUserByIpAndPort(sksMessageReceivedEventArgs.FromIp, sksMessageReceivedEventArgs.FromPort);
var message = ChatMessage.FromString(sksMessageReceivedEventArgs.Message);
var secret = user.GetSecretFromProtocol();
var messageStr = SksAes.DecryptStringFromBytes_Aes(message.EncryptedMessageBytes, secret, message.Iv);
user.Client.OnChatMessageReceived(user.Client.tcpClient, messageStr);
}