You're right and I believe WhisperSystems is doing something similar (or was at least working on it last year when I spoke with one of the developers). I vaguel

You're right and I believe WhisperSystems is doing something similar (or was at least working on it last year when I spoke with one of the developers). I vaguely remember them claiming that group chat is about the same as multi-device, cryptography-wise. I specifically meant Telegrams E2E implementation. Apart from other problems with it [1] the fact that it's not on by default, as others have stated, makes that most people (especially non-technical users) don't use it. [1] https://github.com/zhukov/webogram/issues/126#issuecomment-127982342 https://github.com/zhukov/webogram/issues/126#issuecomment-1...