Re: [TLS] TLS1.3

"Lewis, Nick" <nick.lewis@usa.g4s.com> Mon, 11 February 2013 10:39 UTC

Return-Path: <nick.lewis@usa.g4s.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 C2F1721F8775 for <tls@ietfa.amsl.com>; Mon, 11 Feb 2013 02:39:28 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -4.053
X-Spam-Level:
X-Spam-Status: No, score=-4.053 tagged_above=-999 required=5 tests=[AWL=0.468, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, SUBJ_ALL_CAPS=2.077, UNPARSEABLE_RELAY=0.001]
Received: from mail.ietf.org ([64.170.98.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 04BjSW-wwOWj for <tls@ietfa.amsl.com>; Mon, 11 Feb 2013 02:39:27 -0800 (PST)
Received: from mail1.bemta3.messagelabs.com (mail1.bemta3.messagelabs.com [195.245.230.34]) by ietfa.amsl.com (Postfix) with ESMTP id B89E921F876E for <tls@ietf.org>; Mon, 11 Feb 2013 02:39:26 -0800 (PST)
Received: from [85.158.137.3:61485] by server-15.bemta-3.messagelabs.com id 53/FF-25405-D5AC8115; Mon, 11 Feb 2013 10:39:25 +0000
X-Env-Sender: nick.lewis@usa.g4s.com
X-Msg-Ref: server-6.tower-38.messagelabs.com!1360579164!11591561!1
X-Originating-IP: [89.206.228.155]
X-StarScan-Received:
X-StarScan-Version: 6.7; banners=-,-,-
X-VirusChecked: Checked
Received: (qmail 10201 invoked from network); 11 Feb 2013 10:39:25 -0000
Received: from unallocated.star.net.uk (HELO gbtwk10s037.Technology.local) (89.206.228.155) by server-6.tower-38.messagelabs.com with RC4-SHA encrypted SMTP; 11 Feb 2013 10:39:25 -0000
Received: from GBTWK10E001.Technology.local ([10.234.1.29]) by gbtwk10s037.Technology.local ([10.234.1.39]) with mapi; Mon, 11 Feb 2013 10:39:24 +0000
From: "Lewis, Nick" <nick.lewis@usa.g4s.com>
To: "'Paterson, Kenny'" <Kenny.Paterson@rhul.ac.uk>
Date: Mon, 11 Feb 2013 10:39:24 +0000
Thread-Topic: [TLS] TLS1.3
Thread-Index: AQHOCDnkM5Cm91Ib2Ua7186ZEOcKaph0ZRRQgAALxYCAAAOYoA==
Message-ID: <AAE0766F5AF36B46BAB7E0EFB9273206194A67DCDF@GBTWK10E001.Technology.local>
References: <AAE0766F5AF36B46BAB7E0EFB9273206194A67DCDC@GBTWK10E001.Technology.local> <B132B06E59C4A540A03C3393F53BC07C408169C0@EXCH-MB01.cc.rhul.local> <AAE0766F5AF36B46BAB7E0EFB9273206194A67DCDE@GBTWK10E001.Technology.local> <B132B06E59C4A540A03C3393F53BC07C40818C02@EXCH-MB01.cc.rhul.local>
In-Reply-To: <B132B06E59C4A540A03C3393F53BC07C40818C02@EXCH-MB01.cc.rhul.local>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
acceptlanguage: en-US
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
MIME-Version: 1.0
Cc: "tls@ietf.org" <tls@ietf.org>
Subject: Re: [TLS] TLS1.3
X-BeenThere: tls@ietf.org
X-Mailman-Version: 2.1.12
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: Mon, 11 Feb 2013 10:39:28 -0000

>SHA-1 is still "acceptable" for applications not related to digital signature generation (see Table 9).

Oops Sorry I forgot that the boundary is "greater than or equal to" the 112bit security of SHA-1 rather than just "greater than"
(It looks as if NSS have until 2030 before they need to support TLS1.2 with HMAC-SHA256)

-- Nick

The details of this company are as follows:
G4S Technology Limited, Registered Office: Challenge House, International Drive, Tewkesbury, Gloucestershire GL20 8UQ, Registered in England No. 2382338.

This communication may contain information which is confidential, personal and/or privileged.

It is for the exclusive use of the intended recipient(s).
If you are not the intended recipient(s), please note that any distribution, forwarding, copying or use of this communication or the information in it is strictly prohibited.

Any personal views expressed in this e-mail are those of the individual sender and the company does not endorse or accept responsibility for them.

Prior to taking any action based upon this e-mail message, you should seek appropriate confirmation of its authenticity.

This e-mail has been scanned for all viruses by MessageLabs.