public void Send(string message) { ChatUser sender = ChatingUsers.Find(x => x.ChatUserName == Context.User.Identity.Name); string chatRoomName = sender.ChatRoomName; string name = sender.DisplayUserName; ChatUser reciver = ChatingUsers.Find(x => x.ChatUserName != Context.User.Identity.Name && x.ChatRoomName == chatRoomName); if (sender.CurrentDeriveKey != null) { IM.OTRSend(sender.CurrentDeriveKey, message, out byte[] encryptedMessage); byte[] signature = MAC.Sign(sender.KeyForSigning, message); Clients.User(reciver.ChatUserName).reciveMessage(name, encryptedMessage, signature, chatRoomName); } }