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tatersolid | 1 month ago

It never was FIPS-approved and likely will never be. The wireguard protocol used by Tailscale uses ChaCha20 for encryption which is not FIPS approved.

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keepamovin|1 month ago

Interesting. What is the FIPS version of wireguard?

cronos|1 month ago

There are some forks that are not compatible with regular wireguard, for example from wolfssl. Or just classic mTLS.

tatersolid|1 month ago

> What is the FIPS version of wireguard?

IPsec or TLS-based overlays which use AES encryption and NIST-approved ECC curves or (gasp) RSA for key exchange and authentication. They generally suck in comparison with wireguard, which is a clean-sheet modern cryptographic protocol.