Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-oldversions-deprecate-09.txt> (Deprecating TLSv1.0 and TLSv1.1) to Best Current Practice

Rob Sayre <sayrer@gmail.com> Fri, 04 December 2020 01:03 UTC

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In-Reply-To: <7c4750e8-a3d6-dadd-b854-9ac5785c2938@cs.tcd.ie>
From: Rob Sayre <sayrer@gmail.com>
Date: Thu, 3 Dec 2020 17:03:11 -0800
Message-ID: <CAChr6Swh95d=j7bo=DcE1SmP2QBQ=5+u=p4WQuAyQZ9-nEc-Xg@mail.gmail.com>
To: Stephen Farrell <stephen.farrell@cs.tcd.ie>
Cc: "Ackermann, Michael" <MAckermann@bcbsm.com>, Eliot Lear <lear=40cisco.com@dmarc.ietf.org>, "last-call@ietf.org" <last-call@ietf.org>, "tls-chairs@ietf.org" <tls-chairs@ietf.org>, "draft-ietf-tls-oldversions-deprecate@ietf.org" <draft-ietf-tls-oldversions-deprecate@ietf.org>, "STARK, BARBARA H" <bs7652@att.com>, "tls@ietf.org" <tls@ietf.org>
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Subject: Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-oldversions-deprecate-09.txt> (Deprecating TLSv1.0 and TLSv1.1) to Best Current Practice
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On Thu, Dec 3, 2020 at 4:54 PM Stephen Farrell <stephen.farrell@cs.tcd.ie>
wrote:

>
> There are of course a set of networks that have difficulty
> in managing and updating the systems that make up their
> networks.
>

That's true, but attackers run on their own schedule.

I don't think IETF documents should include caveats for older TLS versions
that are quite obviously flawed.

thanks,
Rob