[Bug 3878] WarnWeakCrypto for non-PQ keys is suppressed if KexAlgorithms option is used

bugzilla-daemon at mindrot.org bugzilla-daemon at mindrot.org
Fri Oct 10 10:13:47 AEDT 2025


https://bugzilla.mindrot.org/show_bug.cgi?id=3878

--- Comment #4 from Damien Miller <djm at mindrot.org> ---
> TBH, a command line option that explicitly and compactly
> lists all crypto algorithms chosen for use once the
> connection is established would be good. 

That's ssh -G, e.g.

[djm at desktop ~]$ ssh -G github.com | grep ^kexalgorithms
kexalgorithms
mlkem768x25519-sha256,sntrup761x25519-sha512,sntrup761x25519-sha512 at openssh.com,curve25519-sha256,curve25519-sha256 at libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256

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