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Re:Military seizes control in Myanmar by 1_player on Monday February 01, 2021 @05:02AM (#25987269)
Only phone numbers: your own contact list IS the social graph. You lose your SIM card, you lose your friends.

Usernames: Signal needs to store your social graph (in a privacy preserving fashion) on a central server.

So, paradoxically, phone numbers were the easiest and most secure option to start with.

Re:Military seizes control in Myanmar by koheripbal on Monday February 01, 2021 @07:57AM (#25988213)
This is the core routing issue. If you don't have centralized system to locate a "user", then the only alternative is to broadcast all messages to everyone, which is not a scalable solution.

Actually, there must be methods for distributed routing. How does TOR finally map a hidden service to an IP address?

Maybe there can be a dynamic DNS service for user accounts on an anonymous messaging network?

Re:Military seizes control in Myanmar by qvtweqbvwe on Monday February 01, 2021 @11:18AM (#25989962)
Distributed Hash Tables