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I'm curious how it encrypts. I've got 500 "Signal connections"... Does it do them all at once (with some kind of "group key" like in group chat) and in a way that can be decrypted by any of the individual keys? Can't find any details on github or the official forum...

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I've always thought creating a shared key which rotates as soon as a single individual is added or removed is smart. There are security implications related to whose decryption key leaked, not sure if that's a legitimate threat model for almost any scenario though.

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