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Nitpick: WhatsApp uses litetally the same encryption algorithm that Signal does. That said, I trust Signal a lot more, just because it isn't owned by Facebook.
by notpushkin 3y ago
Nitpick: WhatsApp uses litetally the same encryption algorithm that Signal does. That said, I trust Signal a lot more, just because it isn't owned by Facebook.
- uoaei 3y agoTo clarify the point made above: Do you trust Meta not to change your key to one they control without notifying you? Do you think they haven't implemented this functionality already?
- notpushkin 3y agoI don't. I think we can decompile WhatsApp and look if something suspicious has been implemented (e. g. some backdoor that hides the key change message), but I'm not sure if somebody does this on a regular basis. That's a bit simpler with the open source Signal, although we still need to verify they haven't slipped a backdoor to their official build. And this backdoor might not be needed though, as UX for key change is (was?) atrocious in both Signal and WhatsApp: https://keybase.io/blog/chat-apps-softer-than-tofu https://keybase.io/blog/chat-apps-softer-than-tofu (2019)