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by SailingSperm 1592 days ago
Yes, signal would manage that. This is still more privacy preserving than a phone number because the the public key isn't attached to your identity in the way a phone number is. You'd still need to getAllContactsPubKey()->encr(PersonAKey)->SendToAllContacts

So signal knows you requested all your contact pubkeys, that you sent a duplicate broadcast to all contacts, obscuring who it was intended for... that could be 0-n of m persons.