Elon's Encrypted DMs with Matthew Garrett
Security Cryptography Whatever
00:00
Encrypted Conversation Keys
The first message you send in a conversation includes... The first client generates this AES key and that's just from secure random. Generates that, encrypts the message with that, and then does this key exchange dance to generate X encrypted conversation keys. If anybody obtains that key at any point in time, they can also meet deeper future messages as well. And those messages are stored on Twitter servers forever. So once you have a valid conversation key, you can decrypt the entire history. Everything going forward, everything going backward, and in theory, everything going forward, if you just stay quiet and just let people keep talking.
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