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Re: draft-baushke-ssh-dh-group-sha2-01 (was Re: DH group exchange)



denis bider <ietf-ssh3%denisbider.com@localhost> writes:

> Comments:
>
>
> - If we're being comprehensive, we should include a position with
> regard to Curve25519 and Curve448:
>
> https://tools.ietf.org/html/draft-josefsson-ssh-curves-03
>
> I suggest we take the following positions:
>
> curve25519-sha256    SHOULD
> curve448-sha256      SHOULD, or MAY?
>
> That being said:
>
>
> - Given the recent NSA recommendations, it seems to me it would be
> prudent to update the Curve25519/Curve448 draft, and to replace the
> SHA-256 algorithm with SHA-512 for Curve448. This would create the
> method "curve448-sha512" instead of "curve448-sha256".
>
> Simon, what do you think? Could your draft be updated to do that?

Yes, that will be part of -04.  For what's it worth: I support
curve25519-sha256 as MUST and curve448-sha512 as MAY in
draft-baushke-ssh-dh-group-sha2.

/Simon

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