Re: [TLS] [Cfrg] 3DES diediedie

Hubert Kario <hkario@redhat.com> Thu, 25 August 2016 13:58 UTC

Return-Path: <hkario@redhat.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 5741A12D13A for <tls@ietfa.amsl.com>; Thu, 25 Aug 2016 06:58:39 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -5.379
X-Spam-Level:
X-Spam-Status: No, score=-5.379 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.548, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URI_NO_WWW_INFO_CGI=2.071] autolearn=unavailable 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 mrEFoQLMx5SX for <tls@ietfa.amsl.com>; Thu, 25 Aug 2016 06:58:38 -0700 (PDT)
Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 2D3AB12D844 for <tls@ietf.org>; Thu, 25 Aug 2016 06:58:34 -0700 (PDT)
Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id CD92580F6B; Thu, 25 Aug 2016 13:58:33 +0000 (UTC)
Received: from pintsize.usersys.redhat.com (dhcp-0-191.brq.redhat.com [10.34.0.191]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u7PDwWns029185 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 25 Aug 2016 09:58:33 -0400
From: Hubert Kario <hkario@redhat.com>
To: Ira McDonald <blueroofmusic@gmail.com>
Date: Thu, 25 Aug 2016 15:58:31 +0200
Message-ID: <1609779.HlDFoKz2ng@pintsize.usersys.redhat.com>
User-Agent: KMail/5.2.3 (Linux/4.6.7-300.fc24.x86_64; KDE/5.25.0; x86_64; ; )
In-Reply-To: <CAN40gSu3bvYhEeQ+B8AvfDpyWFt_QA4M2-wgGBZkFAzAWPLOZA@mail.gmail.com>
References: <CAHOTMV+r5PVxqnSozYyqJqq_YocMKV06aAa-43t+5Huzh7Lo=A@mail.gmail.com> <CABcZeBOCUnVvHbMC09w=STZ2xfQXm9i77Aq++gavOq4Qp5b+4Q@mail.gmail.com> <CAN40gSu3bvYhEeQ+B8AvfDpyWFt_QA4M2-wgGBZkFAzAWPLOZA@mail.gmail.com>
MIME-Version: 1.0
Content-Type: multipart/signed; boundary="nextPart98146633.705ya2F7UW"; micalg="pgp-sha512"; protocol="application/pgp-signature"
X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27
X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.27]); Thu, 25 Aug 2016 13:58:33 +0000 (UTC)
Archived-At: <https://mailarchive.ietf.org/arch/msg/tls/lFGTDLJ1EACrgtLETwNHSINb8Ys>
Cc: david wong <davidwong.crypto@gmail.com>, "cfrg@irtf.org" <cfrg@irtf.org>, "tls@ietf.org" <tls@ietf.org>
Subject: Re: [TLS] [Cfrg] 3DES diediedie
X-BeenThere: tls@ietf.org
X-Mailman-Version: 2.1.17
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: Thu, 25 Aug 2016 13:58:39 -0000

On Thursday, 25 August 2016 09:55:10 CEST Ira McDonald wrote:
> Hi,
> 
> This survey of TLS in 1 million web servers shows that 93% support 3DES -
> oof!
> 
> https://jve.linuxwall.info/blog/index.php?post/TLS_Survey
> 
> 3DES hasn't quite disappeared on the Internet.

but less than 0.5% will actually negotiate it, while still between 2% and 3% 
will negotiate RC4:
https://securitypitfalls.wordpress.com/2016/08/07/april-2016-scan-results/

-- 
Regards,
Hubert Kario
Senior Quality Engineer, QE BaseOS Security team
Web: www.cz.redhat.com
Red Hat Czech s.r.o., Purkyňova 99/71, 612 45, Brno, Czech Republic