this post was submitted on 05 Apr 2025
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The encryption still works roughly the same, the difference is mostly visible metadata.
Multiple bundles of encrypted message + decryption key & recipient tag for 1 person, or one bundle of the encrypted message and then keys for multiple people & recipients which the server can separate out when relaying the message
(message keys are encrypted to each recipient's keypair*)
*simplified because I can't be bothered to explain how deniability is implemented. Just look up the Signal protocol's ratchet