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Re: [DNSOP] [Ext] New Version Notification for draft-fanf-dnsop-sha-ll-not-00.txt (fwd)

Tony Finch <dot@dotat.at> Tue, 10 March 2020 02:24 UTC

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Date: Tue, 10 Mar 2020 02:24:49 +0000
From: Tony Finch <dot@dotat.at>
To: Paul Hoffman <paul.hoffman@icann.org>
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Subject: Re: [DNSOP] [Ext] New Version Notification for draft-fanf-dnsop-sha-ll-not-00.txt (fwd)
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Paul Hoffman <paul.hoffman@icann.org> wrote:
> On Mar 9, 2020, at 6:46 PM, Tony Finch <dot@dotat.at> wrote:

> > Which is why the timetable aims to stop the use of SHA-1 for signing
> > before it stops the use of SHA-1 for validating, assuming
> > optimistically that we actually have 2 years available. (I fear we
> > don't.)
>
> Who is "we" there?

Mainly, people who don't want DNSSEC to be open to criticism for using
broken cryptography.

> > WRT updating RFC 8624, my hope is that updated implementation
> > requirements will encourage better tools to make it easier to upgrade
> > from SHA-1 before SHA-1 becomes useless. My initial suggestions are
> > probably ham-fisted, but for software that is on an annual cycle of
> > feature releases there isn't time for a multi-stage deprecation. I
> > don't think there's any point addressing a draft to operators if the
> > tooling still encourages the use of SHA-1.
>
> Then consider writing a draft that strongly discourages implementations
> from encouraging or even being neutral about algorithms with SHA-1.

That's what I tried to do.

Tony.
-- 
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