Re: [Cfrg] Elliptic Curves - poll on security levels (ends on February 17th)

Michael Scott <mike.scott@certivox.com> Sat, 14 February 2015 12:26 UTC

Return-Path: <mike.scott@certivox.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 52D0F1A1C05 for <cfrg@ietfa.amsl.com>; Sat, 14 Feb 2015 04:26:39 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.978
X-Spam-Level:
X-Spam-Status: No, score=-1.978 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FM_FORGED_GMAIL=0.622, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001] 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 SukZ-SGmEo2b for <cfrg@ietfa.amsl.com>; Sat, 14 Feb 2015 04:26:37 -0800 (PST)
Received: from mail-ig0-f173.google.com (mail-ig0-f173.google.com [209.85.213.173]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 9C2121A1BF3 for <cfrg@irtf.org>; Sat, 14 Feb 2015 04:26:37 -0800 (PST)
Received: by mail-ig0-f173.google.com with SMTP id a13so15728259igq.0 for <cfrg@irtf.org>; Sat, 14 Feb 2015 04:26:37 -0800 (PST)
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:date:message-id:subject:from:to :content-type; bh=CIwS080GS1dPmUfxCus2pVHZEP2PD/DXiFQzEYSk4Wg=; b=QXinAmbRUJehkbAhf6Gtq8I5OzhJ7sqcxXGAf3qeQf5OgWnk1NLQgqKFaE76wNCzOL Qaej2KX+4XTKXDLpErp1/jp8nieaVo2Z43f765xkTfUVWmI3RSWBOcRVXB7ZRwH07lg7 yQQX2sqzPUcIxpb3TE/oYeIsdlJBqJuDwJWROo9Zrd7M9WNG2AesoKA3qQVYvKE97Z75 guz2jB8UOnIRaL1vnudOD4proI6K7j/4m3TTl5qde0McBW7q8O8Ronh8WancX+NwSC9P aihDP+wf55W/wSPYjoniJ3P5TChgm0EkJjGcTftQkPJVdrdDRhwzgBJTGmrqeGMCdR2o Q+Aw==
X-Gm-Message-State: ALoCoQkQUMI3gWnWKc8XaXa/QMfFX9Cog3vC3jT0pmLik1XlwaHdJ9aR6eVJp+OG7h8RGgYoVWKo
MIME-Version: 1.0
X-Received: by 10.50.32.71 with SMTP id g7mr10223820igi.4.1423916797092; Sat, 14 Feb 2015 04:26:37 -0800 (PST)
Received: by 10.36.115.76 with HTTP; Sat, 14 Feb 2015 04:26:37 -0800 (PST)
Date: Sat, 14 Feb 2015 12:26:37 +0000
Message-ID: <CAEseHRpO+4ZsH5gJJYx+1E7ZNVvAOuG4oKxWB4mUEkw_2-st=A@mail.gmail.com>
From: Michael Scott <mike.scott@certivox.com>
To: cfrg@irtf.org
Content-Type: multipart/alternative; boundary="047d7b10cb2de18445050f0b76cc"
Archived-At: <http://mailarchive.ietf.org/arch/msg/cfrg/v7e9mCC-x4Z8Ldv1zjLwe8jHOmI>
Subject: Re: [Cfrg] Elliptic Curves - poll on security levels (ends on February 17th)
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: Sat, 14 Feb 2015 12:26:39 -0000

>Q1: Should CFRG recommend a curve at the 192-bit security level?

No

>Q2: Should CFRG recommend a curve at the 256-bit security level?

No

(only point would be to match AES-192 and AES-256, which are only useful if
some-one comes up with a quantum computer, in which elliptic curves of any
size are toast!)



Michael Scott