Re: [Cfrg] Curve selection revisited

Russ Housley <housley@vigilsec.com> Thu, 31 July 2014 16:57 UTC

Return-Path: <housley@vigilsec.com>
X-Original-To: cfrg@ietfa.amsl.com
Delivered-To: cfrg@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id B340E1A0180 for <cfrg@ietfa.amsl.com>; Thu, 31 Jul 2014 09:57:07 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -100.001
X-Spam-Level:
X-Spam-Status: No, score=-100.001 tagged_above=-999 required=5 tests=[BAYES_20=-0.001, USER_IN_WHITELIST=-100] 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 yON3PEdJ3iTX for <cfrg@ietfa.amsl.com>; Thu, 31 Jul 2014 09:57:06 -0700 (PDT)
Received: from odin.smetech.net (mail.smetech.net [209.135.209.4]) by ietfa.amsl.com (Postfix) with ESMTP id 08AF01A00CA for <cfrg@irtf.org>; Thu, 31 Jul 2014 09:57:06 -0700 (PDT)
Received: from localhost (unknown [209.135.209.5]) by odin.smetech.net (Postfix) with ESMTP id E3F27F9C04C for <cfrg@irtf.org>; Thu, 31 Jul 2014 12:56:54 -0400 (EDT)
X-Virus-Scanned: amavisd-new at smetech.net
Received: from odin.smetech.net ([209.135.209.4]) by localhost (ronin.smeinc.net [209.135.209.5]) (amavisd-new, port 10024) with ESMTP id MkkKMLh0uV5z for <cfrg@irtf.org>; Thu, 31 Jul 2014 12:56:54 -0400 (EDT)
Received: from [192.168.2.108] (pool-96-255-70-16.washdc.fios.verizon.net [96.255.70.16]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by odin.smetech.net (Postfix) with ESMTP id 8FE8DF9C047 for <cfrg@irtf.org>; Thu, 31 Jul 2014 12:56:54 -0400 (EDT)
Content-Type: text/plain; charset=us-ascii
Mime-Version: 1.0 (Apple Message framework v1085)
From: Russ Housley <housley@vigilsec.com>
In-Reply-To: <CABqy+so6JcL3drjXuiQfLhm-LPMOJuS9ES5Hyb1UQRhi-gV2jA@mail.gmail.com>
Date: Thu, 31 Jul 2014 12:56:43 -0400
Content-Transfer-Encoding: quoted-printable
Message-Id: <620BB268-735C-4204-9788-88E1D244CABB@vigilsec.com>
References: <CA+Vbu7xroa68=HOZtbf=oz7kK2EeUv_z1okpnjxHPR0ZtHD5cA@mail.gmail.com> <CFF7E184.28E9F%kenny.paterson@rhul.ac.uk> <53D2781B.8030605@sbcglobal.net> <CACsn0ckqFigWoH2+OOEHSd2VWPp8y6=m8H5OsFRyjXmjK7+m4w@mail.gmail.com> <CABqy+srxMNuG0AaQd0SaegHvZWgbW762EQq+iAHL_fbu6sOJJQ@mail.gmail.com> <53D420B3.10707@brainhub.org> <CABqy+so6JcL3drjXuiQfLhm-LPMOJuS9ES5Hyb1UQRhi-gV2jA@mail.gmail.com>
To: IRTF CFRG <cfrg@irtf.org>
X-Mailer: Apple Mail (2.1085)
Archived-At: http://mailarchive.ietf.org/arch/msg/cfrg/qDGjP7AneqfSoPdIxT1Jf5nCeNA
Subject: Re: [Cfrg] Curve selection revisited
X-BeenThere: cfrg@irtf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: Crypto Forum Research Group <cfrg.irtf.org>
List-Unsubscribe: <http://www.irtf.org/mailman/options/cfrg>, <mailto:cfrg-request@irtf.org?subject=unsubscribe>
List-Archive: <http://www.irtf.org/mail-archive/web/cfrg/>
List-Post: <mailto:cfrg@irtf.org>
List-Help: <mailto:cfrg-request@irtf.org?subject=help>
List-Subscribe: <http://www.irtf.org/mailman/listinfo/cfrg>, <mailto:cfrg-request@irtf.org?subject=subscribe>
X-List-Received-Date: Thu, 31 Jul 2014 16:57:07 -0000

We seem to have gone away from discussing requirements.  Can we get back to that?

I would like to see us use of the same curve for digital signature and key agreement.  This provides obvious modularity, and it seems to fit well with the security protocols that already have support for ECC.

Russ