Re: SHA-1 practical recommendations?

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Daniel Pocock <daniel@xxxxxxxxxx> writes:

> What about KexAlgorithms - should people change this either on client,
> server or both to remove entries like
> diffie-hellman-group-exchange-sha1, and diffie-hellman-group14-sha1 ?

You may find interest in the IETF draft

  https://datatracker.ietf.org/doc/draft-ietf-curdle-ssh-kex-sha2/

Any KeX with *sha1* in the name should be avoided or put last in the
list to be negotiated.

> Is there any SHA1 value cached in known_hosts or does that only
> contain full public keys?

The SSH host keys are just the public keys. The hash is determined by
the negotiation.

	Be safe, stay healthy,
	-- Mark
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