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

Peter Gutmann <pgut001@cs.auckland.ac.nz> Tue, 01 December 2020 00:21 UTC

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From: Peter Gutmann <pgut001@cs.auckland.ac.nz>
To: Nick Lamb <njl@tlrmx.org>, "tls@ietf.org" <tls@ietf.org>
CC: Keith Moore <moore@network-heretics.com>
Thread-Topic: [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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Date: Tue, 1 Dec 2020 00:21:30 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/tls/hfQXRePlcDBW16XntMQ42cBgg_M>
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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Nick Lamb <njl@tlrmx.org> writes:

>You won't get such a certificate from a public CA (presumably meaning a CA
>issuing in the Web PKI).

Well, you're less likely to now thanks to CT.  Before that public CAs issued
huge numbers of them, including EV certs.

>They're subject to the CA/B Baseline Requirements which explicitly forbid
>this (in 7.1.4.2.1):

In practice the BR is more what you'd call "guidelines" than actual rules...

Peter.