IETF Logo Mail Archive

Re: [TLS] WGLC for "Deprecating TLSv1.0 and TLSv1.1"

Viktor Dukhovni <ietf-dane@dukhovni.org> Fri, 03 May 2019 17:36 UTC

Return-Path: <ietf-dane@dukhovni.org>
X-Original-To: tls@ietfa.amsl.com
Delivered-To: tls@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 632861202FC for <tls@ietfa.amsl.com>; Fri, 3 May 2019 10:36:43 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -4.201
X-Spam-Level:
X-Spam-Status: No, score=-4.201 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id qj5RhrH-KhMu for <tls@ietfa.amsl.com>; Fri, 3 May 2019 10:36:41 -0700 (PDT)
Received: from straasha.imrryr.org (straasha.imrryr.org [100.2.39.101]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E0B271202F8 for <tls@ietf.org>; Fri, 3 May 2019 10:36:40 -0700 (PDT)
Received: from [10.200.0.109] (unknown [8.2.105.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by straasha.imrryr.org (Postfix) with ESMTPSA id 9FD882BA3B for <tls@ietf.org>; Fri, 3 May 2019 13:36:39 -0400 (EDT)
Content-Type: text/plain; charset="us-ascii"
Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.8\))
From: Viktor Dukhovni <ietf-dane@dukhovni.org>
In-Reply-To: <1556904629782.23087@cs.auckland.ac.nz>
Date: Fri, 03 May 2019 13:36:39 -0400
Content-Transfer-Encoding: quoted-printable
Reply-To: IETF TLS WG <tls@ietf.org>
Message-Id: <A0549AD3-6283-4205-96E8-F82D541A5171@dukhovni.org>
References: <28511b10-8f6a-4394-95a9-5188130f7b58@www.fastmail.com> <7d37f7ca-e253-4c95-9cf7-2d16b0b6a0aa@www.fastmail.com> <20190430234952.21F5C404C@ld9781.wdf.sap.corp> <5441930.X76MtM1CnQ@pintsize.usersys.redhat.com> <1556902416424.28526@cs.auckland.ac.nz> <20190503172022.GH4464@akamai.com> <1556904629782.23087@cs.auckland.ac.nz>
To: IETF TLS WG <tls@ietf.org>
X-Mailer: Apple Mail (2.3445.104.8)
Archived-At: <https://mailarchive.ietf.org/arch/msg/tls/Txy4LxLlLGSAKXdb4NMqI3W-p-8>
Subject: Re: [TLS] WGLC for "Deprecating TLSv1.0 and TLSv1.1"
X-BeenThere: tls@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "This is the mailing list for the Transport Layer Security working group of the IETF." <tls.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/tls>, <mailto:tls-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/tls/>
List-Post: <mailto:tls@ietf.org>
List-Help: <mailto:tls-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/tls>, <mailto:tls-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 03 May 2019 17:36:43 -0000

> On May 3, 2019, at 1:30 PM, Peter Gutmann <pgut001@cs.auckland.ac.nz> wrote:
> 
> Having said that, given an RFC saying MUST NOT 1.0 and 1.1 which is what the
> original discussion was about, why not also add MUST NOT MD5 and SHA1 in TLS
> 1.2 to the text?

And perhaps MUST EtM, ... which starts to look a lot like "must TLS-LTS"... :-)
If we really are raising the floor, just the protocol version is ultimately only
part of the story.  The whole story is TLS 1.2 minus a lot of options plus a few
requirements.

-- 
	Viktor.

v2.23.0 | Report a Bug | By Email