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Re: [Dcrup] Review of draft-ietf-dcrup-dkim-crypto-03

Eric Rescorla <ekr@rtfm.com> Fri, 07 July 2017 15:31 UTC

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From: Eric Rescorla <ekr@rtfm.com>
Date: Fri, 07 Jul 2017 08:30:43 -0700
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To: "Salz, Rich" <rsalz@akamai.com>
Cc: Martin Thomson <martin.thomson@gmail.com>, "dcrup@ietf.org" <dcrup@ietf.org>
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Subject: Re: [Dcrup] Review of draft-ietf-dcrup-dkim-crypto-03
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On Fri, Jul 7, 2017 at 8:06 AM, Salz, Rich <rsalz@akamai.com> wrote:

> As an individual ...
>
> > I think that Scott's draft does a much better job of the SHA-1 removal
> and
> > attempting to do this all at once in this document isn't helping its
> clarity at all.
>
> I assume you mean Scott Kitterman and not Scott Rose. :)  I think we
> should refer to documents by name to avoid the ambiguity (and keep in mind
> that these are WG documents, not individual authors's).
>
> > On hashing here: hash everything.  Ed25519 might be the last algorithm
> that
> > has a key that is this small.  Uniformity is more valuable than space
> here.
>
> I disagree, and so far the WG seems to be leaning against this view.
> We'll talk in Prague, of course, but right now the only voices for hashing
> are you and ekr.
>

Also Jim Fenton, I believe.
https://www.ietf.org/mail-archive/web/dcrup/current/msg00304.html

-Ekr


>
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