Re: [kitten] Comments on draft-ietf-krb-wg-camac-08

Nico Williams <nico@cryptonector.com> Fri, 01 August 2014 17:13 UTC

Return-Path: <nico@cryptonector.com>
X-Original-To: kitten@ietfa.amsl.com
Delivered-To: kitten@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id DAD7E1B2840 for <kitten@ietfa.amsl.com>; Fri, 1 Aug 2014 10:13:05 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.044
X-Spam-Level:
X-Spam-Status: No, score=-1.044 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FM_FORGED_GMAIL=0.622, IP_NOT_FRIENDLY=0.334, RCVD_IN_DNSWL_NONE=-0.0001] autolearn=no
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 DCF4xgycaDxf for <kitten@ietfa.amsl.com>; Fri, 1 Aug 2014 10:12:58 -0700 (PDT)
Received: from homiemail-a88.g.dreamhost.com (sub4.mail.dreamhost.com [69.163.253.135]) by ietfa.amsl.com (Postfix) with ESMTP id 2AA7A1B284F for <kitten@ietf.org>; Fri, 1 Aug 2014 10:12:40 -0700 (PDT)
Received: from homiemail-a88.g.dreamhost.com (localhost [127.0.0.1]) by homiemail-a88.g.dreamhost.com (Postfix) with ESMTP id 9082526405D for <kitten@ietf.org>; Fri, 1 Aug 2014 10:12:39 -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=pIr1N5o7qzCpaWhSEUxk fR+IaO8=; b=fbgmAJSxBcXwdDqIzzV0olO/QNosnQsyFuqffmmfiNEs+7+59l4Z +jD/PCJiBcD/EJJDji4d8g7Cpg2lTc/+CvWyuGRwsevQhDP0MpyNn2P+97dhXi/P sPgH2zHiR7M7nmR+OWC2VC4/Iq4Bn2rhHgKzd0SRpGjyM534n/YPa/Q=
Received: from mail-wg0-f46.google.com (mail-wg0-f46.google.com [74.125.82.46]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) (Authenticated sender: nico@cryptonector.com) by homiemail-a88.g.dreamhost.com (Postfix) with ESMTPSA id 43E42264059 for <kitten@ietf.org>; Fri, 1 Aug 2014 10:12:39 -0700 (PDT)
Received: by mail-wg0-f46.google.com with SMTP id m15so4558418wgh.5 for <kitten@ietf.org>; Fri, 01 Aug 2014 10:12:37 -0700 (PDT)
MIME-Version: 1.0
X-Received: by 10.180.37.241 with SMTP id b17mr8769111wik.70.1406913157647; Fri, 01 Aug 2014 10:12:37 -0700 (PDT)
Received: by 10.217.98.6 with HTTP; Fri, 1 Aug 2014 10:12:37 -0700 (PDT)
In-Reply-To: <ldvfvhgrvzl.fsf@sarnath.mit.edu>
References: <tslwqax1mhm.fsf@mit.edu> <53D7DBE2.3010105@mit.edu> <ldvfvhgrvzl.fsf@sarnath.mit.edu>
Date: Fri, 01 Aug 2014 12:12:37 -0500
Message-ID: <CAK3OfOj=HvzinngO0Gj8kJeV=NGrv2pMvO_PBUPX9moQ4t4nzg@mail.gmail.com>
From: Nico Williams <nico@cryptonector.com>
To: Tom Yu <tlyu@mit.edu>
Content-Type: text/plain; charset="UTF-8"
Archived-At: http://mailarchive.ietf.org/arch/msg/kitten/Jk13AHk358mtFx5q1anVFI1M4Yc
Cc: "kitten@ietf.org" <kitten@ietf.org>, Sam Hartman <hartmans-ietf@mit.edu>
Subject: Re: [kitten] Comments on draft-ietf-krb-wg-camac-08
X-BeenThere: kitten@ietf.org
X-Mailman-Version: 2.1.15
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: Fri, 01 Aug 2014 17:13:06 -0000

On Fri, Aug 1, 2014 at 11:54 AM, Tom Yu <tlyu@mit.edu> wrote:
> I agree that AD-CAMMAC should have the same effect on the criticality of
> its contents as AD-KDC-ISSUED.  We can recommend that a CAMMAC be put in
> AD-IF-RELEVANT if it is likely that the consuming service won't
> understand it.  The KDC might have enough knowledge of the capabilities
> of the service that the extra layer of wrapping might not be necessary.

I agree with this.

Nico
--