Re: ECC in OpenPGP

Peter Gutmann <pgut001@cs.auckland.ac.nz> Tue, 31 August 2010 06:33 UTC

Received: from hoffman.proper.com (localhost [127.0.0.1]) by hoffman.proper.com (8.14.4/8.14.3) with ESMTP id o7V6Xiqa034209 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 30 Aug 2010 23:33:44 -0700 (MST) (envelope-from owner-ietf-openpgp@mail.imc.org)
Received: (from majordom@localhost) by hoffman.proper.com (8.14.4/8.13.5/Submit) id o7V6Xi1L034208; Mon, 30 Aug 2010 23:33:44 -0700 (MST) (envelope-from owner-ietf-openpgp@mail.imc.org)
X-Authentication-Warning: hoffman.proper.com: majordom set sender to owner-ietf-openpgp@mail.imc.org using -f
Received: from mx2-int.auckland.ac.nz (mx2-int.auckland.ac.nz [130.216.12.41]) by hoffman.proper.com (8.14.4/8.14.3) with ESMTP id o7V6XdDh034203 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=FAIL) for <ietf-openpgp@imc.org>; Mon, 30 Aug 2010 23:33:43 -0700 (MST) (envelope-from pgut001@cs.auckland.ac.nz)
DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=auckland.ac.nz; i=pgut001@cs.auckland.ac.nz; q=dns/txt; s=uoa; t=1283236423; x=1314772423; h=from:to:subject:cc:in-reply-to:message-id:date; z=From:=20Peter=20Gutmann=20<pgut001@cs.auckland.ac.nz> |To:=20hironobu@h2np.net,=20jon@callas.org|Subject:=20Re: =20ECC=20in=20OpenPGP|Cc:=20ietf-openpgp@imc.org |In-Reply-To:=20<17360.1283222623@mail.h2np.net> |Message-Id:=20<E1OqKPa-0001Pn-MP@wintermute02.cs.aucklan d.ac.nz>|Date:=20Tue,=2031=20Aug=202010=2018:33:38=20+120 0; bh=KA2cCA22PAvINRrkA7GFvA0YZP1g4qvNPeUNDEz/zic=; b=AQ4K4e2rwgpKT9NB69RVxNFd9h4GJogCt9Woc7PZo4KF6vvL4WK29Cwf P6qJJsHgmqGc7YjlP6EjCEaOoivSsIf2z/fpwHFpHobxVicPYbLoADFOU 1xdEgKvdSyMfz8NNF2hVA5dLim2J9EsZtt+H7J8UdwVFAJgwlkb0ogevz 4=;
X-IronPort-AV: E=Sophos;i="4.56,297,1280664000"; d="scan'208";a="23602209"
X-Ironport-HAT: UNIVERSITY - $RELAY-THROTTLE
X-Ironport-Source: 130.216.207.92 - Outgoing - Outgoing
Received: from wintermute02.cs.auckland.ac.nz ([130.216.207.92]) by mx2-int.auckland.ac.nz with ESMTP/TLS/AES256-SHA; 31 Aug 2010 18:33:39 +1200
Received: from pgut001 by wintermute02.cs.auckland.ac.nz with local (Exim 4.69) (envelope-from <pgut001@cs.auckland.ac.nz>) id 1OqKPa-0001Pn-MP; Tue, 31 Aug 2010 18:33:38 +1200
From: Peter Gutmann <pgut001@cs.auckland.ac.nz>
To: hironobu@h2np.net, jon@callas.org
Subject: Re: ECC in OpenPGP
Cc: ietf-openpgp@imc.org
In-Reply-To: <17360.1283222623@mail.h2np.net>
Message-Id: <E1OqKPa-0001Pn-MP@wintermute02.cs.auckland.ac.nz>
Date: Tue, 31 Aug 2010 18:33:38 +1200
Sender: owner-ietf-openpgp@mail.imc.org
Precedence: bulk
List-Archive: <http://www.imc.org/ietf-openpgp/mail-archive/>
List-Unsubscribe: <mailto:ietf-openpgp-request@imc.org?body=unsubscribe>
List-ID: <ietf-openpgp.imc.org>

Hironobu SUZUKI <hironobu@h2np.net> writes:

>I wrote some program for Ruby OpenSSL Sample.

Thanks for posting that.  Would it be possible to break them down a bit 
further to show sign and verify times separately?  A big downside of DLP-based 
PKCs is that verification is quite slow, which really bites you in a 
sign-once, verify-many situation.

Peter.