IETF Logo Mail Archive

Re: [Ace] Update of access rights

Olaf Bergmann <bergmann@tzi.org> Mon, 18 May 2020 06:32 UTC

Return-Path: <bergmann@tzi.org>
X-Original-To: ace@ietfa.amsl.com
Delivered-To: ace@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 085B53A0884 for <ace@ietfa.amsl.com>; Sun, 17 May 2020 23:32:28 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: 0.001
X-Spam-Level:
X-Spam-Status: No, score=0.001 tagged_above=-999 required=5 tests=[SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=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 uhXDI4tpMAqN for <ace@ietfa.amsl.com>; Sun, 17 May 2020 23:32:25 -0700 (PDT)
Received: from gabriel-vm-2.zfn.uni-bremen.de (gabriel-vm-2.zfn.uni-bremen.de [134.102.50.17]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id BAAC93A0881 for <ace@ietf.org>; Sun, 17 May 2020 23:32:24 -0700 (PDT)
Received: from wangari.tzi.org (p54bded4c.dip0.t-ipconnect.de [84.189.237.76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by gabriel-vm-2.zfn.uni-bremen.de (Postfix) with ESMTPSA id 49QThQ2myfzyWg; Mon, 18 May 2020 08:32:22 +0200 (CEST)
From: Olaf Bergmann <bergmann@tzi.org>
To: Jim Schaad <ietf@augustcellars.com>
Cc: 'Francesca Palombini' <francesca.palombini@ericsson.com>, 'Ace Wg' <ace@ietf.org>
References: <8063D003-2C48-4157-B80E-B7AF3D2099FC@ericsson.com> <20680.1588694462@localhost> <CB1396B3-5D52-422A-AFC4-0FB362C2C0F5@ericsson.com> <29287.1588780702@localhost> <006401d62cc3$70d795f0$5286c1d0$@augustcellars.com>
Date: Mon, 18 May 2020 08:32:21 +0200
In-Reply-To: <006401d62cc3$70d795f0$5286c1d0$@augustcellars.com> (Jim Schaad's message of "Sun, 17 May 2020 20:21:35 -0700")
Message-ID: <87eerhkb2i.fsf@wangari>
User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux)
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: quoted-printable
Archived-At: <https://mailarchive.ietf.org/arch/msg/ace/tzDOqafU1uWckzWuleNItpYbbng>
Subject: Re: [Ace] Update of access rights
X-BeenThere: ace@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "Authentication and Authorization for Constrained Environments \(ace\)" <ace.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/ace>, <mailto:ace-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/ace/>
List-Post: <mailto:ace@ietf.org>
List-Help: <mailto:ace-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ace>, <mailto:ace-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 18 May 2020 06:32:28 -0000

Hi Jim,

Jim Schaad <ietf@augustcellars.com> writes:

> define a new claim which says - This token supersedes the token(s)
> with CWTID values of "x", "y" and "z".

Isn't this the same as token revocation with all its implications?  I
would prefer strict token ordering combined with a sound revocation
mechanism. In both scenarios, you would still have the issue that the
client forwards the superseding token/revocation message if it has a
benefit from doing so.

Grüße
Olaf

v2.23.0 | Report a Bug | By Email