There's probably at least 100 people who could code both Diffie-Hellman and ChaCha20 from memory. That's all you need for nation-state proof end-to-end private messaging. Banning it, or mandating backdoors in cryptography, are pointless when the bad guys can do that anyway.
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If I was worried about Post-Quantum risks, I'd watch more talks by
@EllipticKiwi and@durumcrustulum :)Thanks. Twitter will use this to make your timeline better. UndoUndo
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True to a point, if you are worried about PQ risks and can't do LWE from memory (maybe Peikert can, lel) just do symmetric everything

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If you screw up encrypting with lattices, you end up with word salad.
End of conversation
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