IETF Logo Mail Archive

Re: [Cfrg] Elliptic Curves - poll on specific curve around 256bit work factor (ends on February 23rd)

Torsten Schuetze <torsten.schuetze@gmx.net> Sat, 21 February 2015 14:19 UTC

Return-Path: <torsten.schuetze@gmx.net>
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 AE4241A6FFC for <cfrg@ietfa.amsl.com>; Sat, 21 Feb 2015 06:19:59 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.91
X-Spam-Level:
X-Spam-Status: No, score=-1.91 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] 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 KyloXjnKmuq1 for <cfrg@ietfa.amsl.com>; Sat, 21 Feb 2015 06:19:58 -0800 (PST)
Received: from mout.gmx.net (mout.gmx.net [212.227.15.19]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id F0FED1A6FF0 for <cfrg@irtf.org>; Sat, 21 Feb 2015 06:19:57 -0800 (PST)
Received: from [192.168.0.2] ([85.216.67.1]) by mail.gmx.com (mrgmx002) with ESMTPSA (Nemesis) id 0M6RiN-1XbKVs2RAJ-00ySBF for <cfrg@irtf.org>; Sat, 21 Feb 2015 15:19:55 +0100
Message-ID: <54E8940D.2000907@gmx.net>
Date: Sat, 21 Feb 2015 15:19:57 +0100
From: Torsten Schuetze <torsten.schuetze@gmx.net>
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0
MIME-Version: 1.0
To: cfrg@irtf.org
References: <54E46EA4.9010002@isode.com>
In-Reply-To: <54E46EA4.9010002@isode.com>
Content-Type: text/plain; charset="windows-1252"
Content-Transfer-Encoding: 7bit
X-Provags-ID: V03:K0:vpLAnBD5uk98OeCMRjXR7vFStjl3mVGcp0tfWVucFhQTMb1izeK ixs5YQ57GEUnLqjf57EmBaiThsuBe/dVRzzvw6fJB6S6Wjjvs8Uvr9N3MgwmfqRC+uLmOxV DhFmPh8Refjot4/7GQljYVaIDbmkPTpkUoyJOxVsHIEbCJpTZjaHLMYymSDmUX8AwPPcghQ D4QlcGoULNKdNRvowMtGA==
X-UI-Out-Filterresults: notjunk:1;
Archived-At: <http://mailarchive.ietf.org/arch/msg/cfrg/0-Y3dm3nLhpl6TUX17cAMPTvZjk>
Subject: Re: [Cfrg] Elliptic Curves - poll on specific curve around 256bit work factor (ends on February 23rd)
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, 21 Feb 2015 14:19:59 -0000

On 18.02.2015 11:51, Alexey Melnikov wrote:
> CFRG chairs are starting another poll:
> 
> Q3: (For people who want CFRG to recommend a curve at 256bit level) Is
> bandwidth cost of going to p521 worth the speed win over primes closer
> to 512 bits?

I would rather prefer 2^512-c but could live with P521, too.

Torsten

v2.23.0 | Report a Bug | By Email