IETF Logo Mail Archive

Re: [TLS] I-D Action: draft-ietf-tls-prohibiting-rc4-01.txt

"Salz, Rich" <rsalz@akamai.com> Thu, 02 October 2014 01:33 UTC

Return-Path: <rsalz@akamai.com>
X-Original-To: tls@ietfa.amsl.com
Delivered-To: tls@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 3E8331A8882 for <tls@ietfa.amsl.com>; Wed, 1 Oct 2014 18:33:05 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.686
X-Spam-Level:
X-Spam-Status: No, score=-2.686 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, RP_MATCHES_RCVD=-0.786] autolearn=ham
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 b_c7t6mOz-EP for <tls@ietfa.amsl.com>; Wed, 1 Oct 2014 18:33:03 -0700 (PDT)
Received: from prod-mail-xrelay06.akamai.com (prod-mail-xrelay06.akamai.com [96.6.114.98]) by ietfa.amsl.com (Postfix) with ESMTP id BA7791A887A for <tls@ietf.org>; Wed, 1 Oct 2014 18:33:03 -0700 (PDT)
Received: from prod-mail-xrelay06.akamai.com (localhost.localdomain [127.0.0.1]) by postfix.imss70 (Postfix) with ESMTP id B0F38165898; Thu, 2 Oct 2014 01:33:02 +0000 (GMT)
Received: from prod-mail-relay09.akamai.com (prod-mail-relay09.akamai.com [172.27.22.68]) by prod-mail-xrelay06.akamai.com (Postfix) with ESMTP id A6429165897; Thu, 2 Oct 2014 01:33:02 +0000 (GMT)
Received: from ustx2ex-cashub.dfw01.corp.akamai.com (ustx2ex-cashub2.dfw01.corp.akamai.com [172.27.25.76]) by prod-mail-relay09.akamai.com (Postfix) with ESMTP id A37AA1E051; Thu, 2 Oct 2014 01:33:02 +0000 (GMT)
Received: from USMBX1.msg.corp.akamai.com ([169.254.2.28]) by ustx2ex-cashub2.dfw01.corp.akamai.com ([172.27.25.76]) with mapi; Wed, 1 Oct 2014 20:33:02 -0500
From: "Salz, Rich" <rsalz@akamai.com>
To: "mrex@sap.com" <mrex@sap.com>, "tls@ietf.org" <tls@ietf.org>
Date: Wed, 01 Oct 2014 20:33:01 -0500
Thread-Topic: [TLS] I-D Action: draft-ietf-tls-prohibiting-rc4-01.txt
Thread-Index: Ac/d2/HkrXpOzG2tQ6aXlZTAM6i8FwABIGdQ
Message-ID: <2A0EFB9C05D0164E98F19BB0AF3708C71D2F8F7D5B@USMBX1.msg.corp.akamai.com>
References: <20141001231254.5238.71176.idtracker@ietfa.amsl.com> <20141002005804.2760C1AE9D@ld9781.wdf.sap.corp>
In-Reply-To: <20141002005804.2760C1AE9D@ld9781.wdf.sap.corp>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
acceptlanguage: en-US
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
Archived-At: http://mailarchive.ietf.org/arch/msg/tls/nLfPtVmQE_n1-RgBT4nAele-LPU
Subject: Re: [TLS] I-D Action: draft-ietf-tls-prohibiting-rc4-01.txt
X-BeenThere: tls@ietf.org
X-Mailman-Version: 2.1.15
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: <http://www.ietf.org/mail-archive/web/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, 02 Oct 2014 01:33:05 -0000

> PS: I still object to the MUST fail requirement to the server.
>     It is not just plain silly it is also incompatible with
>     rfc2119 section 6.  In many situations, the risk in accepting
>     a TLS session with RC4 as a last resort for interop will be
>     quite managable and pretty close to negligible.

Agree.

--  
Principal Security Engineer, Akamai Technologies
IM: rsalz@jabber.me Twitter: RichSalz

v2.23.0 | Report a Bug | By Email