What is the point for server side open source? You can never trust that this code is launched on the instance which answers to your client' requests. If you d

What is the point for server side open source? You can never trust that this code is launched on the instance which answers to your client' requests. If you don't trust the backend in some particular way, nothing can help you to trust cloud storage. You should better take a look at end-to-end encrypted chats [1]. In theory they don't allow server to get access to any user data, except the fact of sending messages. [1] http://core.telegram.org/api/end-to-end http://core.telegram.org/api/end-to-end