Re: [saag] SHA-1 to SHA-n transition

Peter Gutmann <pgut001@cs.auckland.ac.nz> Tue, 03 March 2009 16:26 UTC

Return-Path: <pgut001@cs.auckland.ac.nz>
X-Original-To: saag@core3.amsl.com
Delivered-To: saag@core3.amsl.com
Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 7BA753A6955 for <saag@core3.amsl.com>; Tue, 3 Mar 2009 08:26:23 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -5.849
X-Spam-Level:
X-Spam-Status: No, score=-5.849 tagged_above=-999 required=5 tests=[AWL=0.750, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4]
Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id WLkX0TFkydoV for <saag@core3.amsl.com>; Tue, 3 Mar 2009 08:26:22 -0800 (PST)
Received: from mailhost.auckland.ac.nz (larry.its.auckland.ac.nz [130.216.12.34]) by core3.amsl.com (Postfix) with ESMTP id 7DBA63A684F for <saag@ietf.org>; Tue, 3 Mar 2009 08:26:21 -0800 (PST)
Received: from localhost (localhost.localdomain [127.0.0.1]) by mailhost.auckland.ac.nz (Postfix) with ESMTP id 0C24B19A7F; Wed, 4 Mar 2009 05:26:48 +1300 (NZDT)
X-Virus-Scanned: by amavisd-new at mailhost.auckland.ac.nz
Received: from mailhost.auckland.ac.nz ([127.0.0.1]) by localhost (larry.its.auckland.ac.nz [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id J8u1vFs0d6h9; Wed, 4 Mar 2009 05:26:47 +1300 (NZDT)
Received: from iris.cs.auckland.ac.nz (iris.cs.auckland.ac.nz [130.216.33.152]) by mailhost.auckland.ac.nz (Postfix) with ESMTP id E0F4319714; Wed, 4 Mar 2009 05:26:47 +1300 (NZDT)
Received: from wintermute01.cs.auckland.ac.nz (wintermute01.cs.auckland.ac.nz [130.216.34.38]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by iris.cs.auckland.ac.nz (Postfix) with ESMTP id 635FC1DE4001; Wed, 4 Mar 2009 05:26:47 +1300 (NZDT)
Received: from pgut001 by wintermute01.cs.auckland.ac.nz with local (Exim 4.63) (envelope-from <pgut001@wintermute01.cs.auckland.ac.nz>) id 1LeXSB-0000gr-AM; Wed, 04 Mar 2009 05:26:47 +1300
From: Peter Gutmann <pgut001@cs.auckland.ac.nz>
To: Nicolas.Williams@sun.com, pgut001@cs.auckland.ac.nz
In-Reply-To: <20090303160007.GW9992@Sun.COM>
Message-Id: <E1LeXSB-0000gr-AM@wintermute01.cs.auckland.ac.nz>
Sender: pgut001 <pgut001@cs.auckland.ac.nz>
Date: Wed, 04 Mar 2009 05:26:47 +1300
Cc: saag@ietf.org, mouse@Rodents-Montreal.ORG
Subject: Re: [saag] SHA-1 to SHA-n transition
X-BeenThere: saag@ietf.org
X-Mailman-Version: 2.1.9
Precedence: list
List-Id: Security Area Advisory Group <saag.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/listinfo/saag>, <mailto:saag-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/saag>
List-Post: <mailto:saag@ietf.org>
List-Help: <mailto:saag-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/saag>, <mailto:saag-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 03 Mar 2009 16:26:23 -0000

Nicolas Williams <Nicolas.Williams@sun.com> writes:
>On Wed, Mar 04, 2009 at 04:46:42AM +1300, Peter Gutmann wrote:
>> (I don't know the answer either, but admitting you have a problem with your
>> current approach is always the first step to recovery).
>
>How long has the consensus been that web security is broke?  Admitting
>you have a problem is the first step, but it is not sufficient.

By "current approach" I meant PKI as a means of addressing web security
problems.  The response to 20 (or 30, see before) years of PKI failure as
recently as a year ago has been EV certs, i.e. more of what we already know
doesn't work.  It looks like we're nowhere near admitting that we have a
problem yet if the response to the failure of PKI is PKI-me-harder.

Peter.