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1. NSA or similar agencies are not commercial.
2. Not the issue I'm talking about, I'm saying that today's network traffic will be decryptable by quantum computers. Just because the traffic is 3 or 5 years old it doesn't mean that it doesn't concern your privacy.
Quantum computers will be able to crack about every algo that exists today as they are 100x+ as fast. Multiple companies and open source projects are working on solutions though!
@linuxxx they are not exactly 100x faster, they are just pretty good with math problems like integer factorization. Quantum computers don't really pose a threat on symmetric encryption, just most asymmetric encryption methods since these methods rely on the slowness of integer factorization on classical computers.
Anyways, it's possible to use SIDH with TLS 1.3 to get quantum resistant encryption.