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So use whatever crypto Signal uses, or that WireGuard uses. You're not working in a vacuum. You don't even trust NIST to begin with, and yet we still encrypt things, so I'm a little confuddled by the argument that NIST's role as a trusted arbiter of cryptography is vital to our industry. NIST is mostly a force for evil!

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Signal’s crypto doesn’t solve all problems (neither does wireguard).

For example, we built private information recovery using the first production grade open source implementation of oblivious RAM (https://mobilecoin.com/overview/explain-like-i'm-five/fog you’ll want to skip to the software engineer section) so that organizations could obliviously store and recover customer transactions without being able to observe them. The signal protocol’s techniques might be part of a cryptographic solution but it is not a silver-bullet.

I guess, notably, we never looked at NIST when designing it so maybe that’s the end of the discussion there.

I didn't say Signal and WireGuard "solved all problems", and neither does any given NIST standard! The track record of cryptosystems built to, say, FIPS standards is extremely bad.

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