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by topdancing
1325 days ago
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> Signal does not know numbers or how these contatcs interact. > It is described here [2]. Number is only needed for creating the unique hash. Server knows only the recipient, not the sender. Signal does know everyone's numbers as everybody is logged into a Signal account on the server end (this is how your client fetches messages for your number). That same account and IP are also used when you send a message. On top of that fact, sealed sender has been known to be broken for some time now: https://www.ndss-symposium.org/ndss-paper/improving-signals-... |
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