Re: [kitten] Input on Paul's concerns about aes-cbc
Nico Williams <nico@cryptonector.com> Tue, 08 October 2013 04:00 UTC
Return-Path: <nico@cryptonector.com>
X-Original-To: kitten@ietfa.amsl.com
Delivered-To: kitten@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1CF5621E8128 for <kitten@ietfa.amsl.com>; Mon, 7 Oct 2013 21:00:56 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.952
X-Spam-Level:
X-Spam-Status: No, score=-1.952 tagged_above=-999 required=5 tests=[AWL=0.025, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622]
Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id WR6zh4aXdLjD for <kitten@ietfa.amsl.com>; Mon, 7 Oct 2013 21:00:51 -0700 (PDT)
Received: from homiemail-a27.g.dreamhost.com (caiajhbdcbhh.dreamhost.com [208.97.132.177]) by ietfa.amsl.com (Postfix) with ESMTP id 5A5C921E81F9 for <kitten@ietf.org>; Mon, 7 Oct 2013 21:00:45 -0700 (PDT)
Received: from homiemail-a27.g.dreamhost.com (localhost [127.0.0.1]) by homiemail-a27.g.dreamhost.com (Postfix) with ESMTP id BA54E59805F for <kitten@ietf.org>; Mon, 7 Oct 2013 21:00:44 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=cryptonector.com; h= mime-version:in-reply-to:references:date:message-id:subject:from :to:cc:content-type; s=cryptonector.com; bh=GcVb2pSVvaHKrP00wZh9 65y7VAk=; b=AQyvJ72NOA6PR7byhgVZqEmGccz5s8DHN12SSbioyOiHm/S6FmoA EvClQKD+bGFP0ASfPZh7ZGlGSfX+cvazP1iJnhHGMeFF5dPAJ2wfbd4iFNuGTaYR cwWaAC1J1QTIhSHvB61UA8g1rIvnt4AqFj2t8tB3FfpZ60F9z8DWd5c=
Received: from mail-wg0-f45.google.com (mail-wg0-f45.google.com [74.125.82.45]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) (Authenticated sender: nico@cryptonector.com) by homiemail-a27.g.dreamhost.com (Postfix) with ESMTPSA id 6577E598058 for <kitten@ietf.org>; Mon, 7 Oct 2013 21:00:44 -0700 (PDT)
Received: by mail-wg0-f45.google.com with SMTP id y10so8295147wgg.12 for <kitten@ietf.org>; Mon, 07 Oct 2013 21:00:42 -0700 (PDT)
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=GbDP6YXvjfYgYjNwsw9Vono5aCFV9NGiAeeVNCLv3i4=; b=liJKfpTQNz1At/9KODS30hlYIPT+LXqbiXWoWA/G45NbEVrZW7yV4ThPWlSpQSOOKl ur4UwvyuFZBsEdSHrx+Wve29qPS+4c6gtHUG1nsAGYjOgh1Pg4mdJSPn1cnjKX+RIPl6 KJzltroWj56IVWNahzOKAVGCKZPmqA6fl2p1yAV02elek1oK36p2HnKyVwkxFxhXuvNM MmsHZA0Ie4kdThWUygVSeesaKjybMXb02CiQ9IqHWZMU+Le6prOPB6okIesc8RjXXL6Q MQdzF9M1nyDAN/g4e8x/FZNPnRE5EBZ7CStim6CNEqF2x+2047du+SQF6FHtUrUlaosV mUVA==
MIME-Version: 1.0
X-Received: by 10.194.193.4 with SMTP id hk4mr27431866wjc.29.1381204533322; Mon, 07 Oct 2013 20:55:33 -0700 (PDT)
Received: by 10.216.165.5 with HTTP; Mon, 7 Oct 2013 20:55:33 -0700 (PDT)
In-Reply-To: <064ca7780d4943b1868670461c2c7184@BLUPR03MB279.namprd03.prod.outlook.com>
References: <tslob752llm.fsf@mit.edu> <524ECE01.3060401@mit.edu> <CAK3OfOger4OxBoBc=jCVBRZeXO2OeJa5mRoONij98gnRFPGMyw@mail.gmail.com> <064ca7780d4943b1868670461c2c7184@BLUPR03MB279.namprd03.prod.outlook.com>
Date: Mon, 07 Oct 2013 22:55:33 -0500
Message-ID: <CAK3OfOgTZPzvqtBDvWeQY8NGCGFvb8ZooREE2bL5Lug5ay4oyg@mail.gmail.com>
From: Nico Williams <nico@cryptonector.com>
To: "Paul Miller (NT)" <paumil@microsoft.com>
Content-Type: text/plain; charset="UTF-8"
Cc: "kitten@ietf.org" <kitten@ietf.org>, Sam Hartman <hartmans-ietf@mit.edu>
Subject: Re: [kitten] Input on Paul's concerns about aes-cbc
X-BeenThere: kitten@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: Common Authentication Technologies - Next Generation <kitten.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/kitten>, <mailto:kitten-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/kitten>
List-Post: <mailto:kitten@ietf.org>
List-Help: <mailto:kitten-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/kitten>, <mailto:kitten-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 08 Oct 2013 04:00:56 -0000
On Mon, Oct 7, 2013 at 7:22 PM, Paul Miller (NT) <paumil@microsoft.com> wrote: > [...] Thanks, that was exactly what I was looking for. That's convincing. We need the new enctype to require no padding. I'm not a fan of coutner modes for Kerberos, but if someone has a specific proposal I would review it; the same goes for just about any cipher modes other than CTS. Assuming nobody proposes such a thing that leaves us with confounded CTS or random IV CTS (including short-plaintext cases because of non-GSS RFC3961 applications). Nico --
- [kitten] Input on Paul's concerns about aes-cbc Sam Hartman
- Re: [kitten] Input on Paul's concerns about aes-c… Greg Hudson
- Re: [kitten] Input on Paul's concerns about aes-c… Nico Williams
- Re: [kitten] Input on Paul's concerns about aes-c… Paul Miller (NT)
- Re: [kitten] Input on Paul's concerns about aes-c… Nico Williams
- Re: [kitten] Input on Paul's concerns about aes-c… Luke Howard
- Re: [kitten] Input on Paul's concerns about aes-c… Martin Rex
- Re: [kitten] Input on Paul's concerns about aes-c… Luke Howard
- [kitten] DES enctypes are not PKCS#7 padded (Re: … Tom Yu
- Re: [kitten] DES enctypes are not PKCS#7 padded (… Luke Howard
- Re: [kitten] DES enctypes are not PKCS#7 padded (… Tom Yu
- Re: [kitten] Input on Paul's concerns about aes-c… Luke Howard
- Re: [kitten] Input on Paul's concerns about aes-c… Tom Yu
- Re: [kitten] Input on Paul's concerns about aes-c… Benjamin Kaduk