IETF Logo Mail Archive

Re: [TLS] Adoption call for Deprecating FFDH(E) Ciphersuites in TLS

Ilari Liusvaara <ilariliusvaara@welho.com> Fri, 06 August 2021 18:51 UTC

Return-Path: <ilariliusvaara@welho.com>
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 B7C3E3A10CB for <tls@ietfa.amsl.com>; Fri, 6 Aug 2021 11:51:16 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.498
X-Spam-Level:
X-Spam-Status: No, score=-1.498 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, KHOP_HELO_FCRDNS=0.399, SPF_HELO_NONE=0.001, SPF_NONE=0.001, URIBL_BLOCKED=0.001] autolearn=no 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 BiGXNABWFlUi for <tls@ietfa.amsl.com>; Fri, 6 Aug 2021 11:51:12 -0700 (PDT)
Received: from welho-filter1.welho.com (welho-filter1b.welho.com [83.102.41.27]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id A31453A1037 for <tls@ietf.org>; Fri, 6 Aug 2021 11:51:11 -0700 (PDT)
Received: from localhost (localhost [127.0.0.1]) by welho-filter1.welho.com (Postfix) with ESMTP id 1324F1EA38 for <tls@ietf.org>; Fri, 6 Aug 2021 21:51:09 +0300 (EEST)
X-Virus-Scanned: Debian amavisd-new at pp.htv.fi
Received: from welho-smtp1.welho.com ([IPv6:::ffff:83.102.41.84]) by localhost (welho-filter1.welho.com [::ffff:83.102.41.23]) (amavisd-new, port 10024) with ESMTP id QkzmlyMrWArR for <tls@ietf.org>; Fri, 6 Aug 2021 21:51:08 +0300 (EEST)
Received: from LK-Perkele-VII2 (87-92-216-160.rev.dnainternet.fi [87.92.216.160]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by welho-smtp1.welho.com (Postfix) with ESMTPSA id C9591292 for <tls@ietf.org>; Fri, 6 Aug 2021 21:51:07 +0300 (EEST)
Date: Fri, 06 Aug 2021 21:51:07 +0300
From: Ilari Liusvaara <ilariliusvaara@welho.com>
To: "<tls@ietf.org>" <tls@ietf.org>
Message-ID: <YQ2Em9zwGoK23Z2K@LK-Perkele-VII2.locald>
References: <CAOgPGoC4C0bWz0h0iyzGzMPEoDKAPv4euoOkmS+6Uuxncux4Zg@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Disposition: inline
In-Reply-To: <CAOgPGoC4C0bWz0h0iyzGzMPEoDKAPv4euoOkmS+6Uuxncux4Zg@mail.gmail.com>
Sender: ilariliusvaara@welho.com
Archived-At: <https://mailarchive.ietf.org/arch/msg/tls/-g89gEY6flf3iAthRgltGDpiMbE>
Subject: Re: [TLS] Adoption call for Deprecating FFDH(E) Ciphersuites in TLS
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, 06 Aug 2021 18:51:21 -0000

On Thu, Jul 29, 2021 at 02:50:24PM -0700, Joseph Salowey wrote:
> This is a working group call for adoption for Deprecating FFDH(E)
> Ciphersuites in TLS (draft-bartle-tls-deprecate-ffdhe-00
> <https://datatracker.ietf.org/doc/draft-bartle-tls-deprecate-ffdhe/>). We
> had a presentation for this draft at the IETF 110 meeting and since it is
> a similar topic to the key exchange deprecation draft the chairs want to
> get a sense if the working group wants to adopt this draft (perhaps the
> drafts could be merged if both move forward).  Please review the draft and
> post your comments to the list by Friday, August 13, 2021.

I do not support adoption, as I think this stuff should be folded into
deprecate-obsolete-kex.

As note: the DH_anon and ECDH_anon names are a bit misleading: Those
two are actually ephemeral (but are still rarely a good idea to use).


-Ilari

v2.23.0 | Report a Bug | By Email