Re: [secdir] SECDIR review of draft-ietf-hokey-key-mgm

"Hoeper Katrin-QWKN37" <khoeper@motorola.com> Tue, 11 August 2009 22:28 UTC

Return-Path: <khoeper@motorola.com>
X-Original-To: secdir@core3.amsl.com
Delivered-To: secdir@core3.amsl.com
Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 5D65428C0D7; Tue, 11 Aug 2009 15:28:16 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -6.599
X-Spam-Level:
X-Spam-Status: No, score=-6.599 tagged_above=-999 required=5 tests=[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 wQlfut2+xEYn; Tue, 11 Aug 2009 15:28:15 -0700 (PDT)
Received: from mail153.messagelabs.com (mail153.messagelabs.com [216.82.253.51]) by core3.amsl.com (Postfix) with ESMTP id 1CED03A68DA; Tue, 11 Aug 2009 15:28:15 -0700 (PDT)
X-VirusChecked: Checked
X-Env-Sender: khoeper@motorola.com
X-Msg-Ref: server-2.tower-153.messagelabs.com!1250029656!16981706!1
X-StarScan-Version: 6.0.0; banners=-,-,-
X-Originating-IP: [129.188.136.8]
Received: (qmail 16205 invoked from network); 11 Aug 2009 22:27:37 -0000
Received: from motgate8.mot.com (HELO motgate8.mot.com) (129.188.136.8) by server-2.tower-153.messagelabs.com with DHE-RSA-AES256-SHA encrypted SMTP; 11 Aug 2009 22:27:37 -0000
Received: from il06exr04.mot.com (il06exr04.mot.com [129.188.137.134]) by motgate8.mot.com (8.14.3/8.14.3) with ESMTP id n7BMRab2009183; Tue, 11 Aug 2009 15:27:36 -0700 (MST)
Received: from il06vts03.mot.com (il06vts03.mot.com [129.188.137.143]) by il06exr04.mot.com (8.13.1/Vontu) with SMTP id n7BMRaQM016535; Tue, 11 Aug 2009 17:27:36 -0500 (CDT)
Received: from de01exm68.ds.mot.com (de01exm68.am.mot.com [10.176.8.24]) by il06exr04.mot.com (8.13.1/8.13.0) with ESMTP id n7BMRZhx016528; Tue, 11 Aug 2009 17:27:36 -0500 (CDT)
X-MimeOLE: Produced By Microsoft Exchange V6.5
Content-class: urn:content-classes:message
MIME-Version: 1.0
Content-Type: text/plain; charset="US-ASCII"
Content-Transfer-Encoding: quoted-printable
Date: Tue, 11 Aug 2009 18:27:14 -0400
Message-ID: <3A241A6B234BE948B8B474D261FEBC2F06555C24@de01exm68.ds.mot.com>
In-Reply-To: <004f01ca1a22$56af4de0$040de9a0$@net>
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
thread-topic: [secdir] SECDIR review of draft-ietf-hokey-key-mgm
thread-index: AcoZ6RjwgdOHSJLUTSaXyXUToQZhhgAKfEsgAC8KAkA=
References: <369289D9-6E39-4673-B50E-0090BBBB6EB2@Isode.com> <00bf01ca19e0$1b703e70$5250bb50$@net> <B1002512-9406-4681-965C-17A7C189DF98@Isode.com> <004f01ca1a22$56af4de0$040de9a0$@net>
From: Hoeper Katrin-QWKN37 <khoeper@motorola.com>
To: Glen Zorn <glenzorn@comcast.net>, Kurt Zeilenga <Kurt.Zeilenga@Isode.com>
X-CFilter-Loop: Reflected
X-Mailman-Approved-At: Tue, 11 Aug 2009 23:22:46 -0700
Cc: gwz@net-zen.net, draft-ietf-hokey-key-mgm@tools.ietf.org, iesg@ietf.org, secdir@ietf.org
Subject: Re: [secdir] SECDIR review of draft-ietf-hokey-key-mgm
X-BeenThere: secdir@ietf.org
X-Mailman-Version: 2.1.9
Precedence: list
List-Id: Security Area Directorate <secdir.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/listinfo/secdir>, <mailto:secdir-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/secdir>
List-Post: <mailto:secdir@ietf.org>
List-Help: <mailto:secdir-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/secdir>, <mailto:secdir-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 11 Aug 2009 22:28:16 -0000

Please find my reply to Glen's comments in-line.

Katrin


> -----Original Message-----
> From: Glen Zorn [mailto:glenzorn@comcast.net]
> Sent: Monday, August 10, 2009 8:24 PM
> To: 'Kurt Zeilenga'
> Cc: secdir@ietf.org; iesg@ietf.org; draft-ietf-hokey-key-
> mgm@tools.ietf.org; gwz@net-zen.net
> Subject: RE: [secdir] SECDIR review of draft-ietf-hokey-key-mgm
><snip> 
> Thanks for pointing that out.  In fact, the document should _not_ talk
> about
> the use of KDE in ERP, since it doesn't exist ;-).  Re-re-re-reading
;-)
> section 6 (which is what I think you are talking about?), I noticed
> A couple of other errors, too.  For example, section 3 says "Here,
> EAP-Initiate and EAP-Finish messages are exchanged between the peer
and
> the
> home AAA server, with the bootstrapping flag in the EAP-Initiate
message
> set"; unfortunately, this is impossible, since the peer and AAA server
do
> not speak the same protocol.  Another example of the same kind of
fuzzy
> writing is in the second paragraph of the same section: "In this case,
the
> local ER server requesting the DSRK MUST include a KDE-Request message
in
> the first EAP-Response   message from the peer".  This _should_ say "
In
> this case, the local ER server requesting the DSRK MUST include a
> KDE-Request message in the AAA packet encapsulating the first
EAP-Response
> message from the peer" in order to agree with RFC 5296 (in fact,
though,
> there's no need for the local ERP server to be involved in this at
all,
> except that that is (erroneously, I think) specified in 5296).
> 
> ...
> 
[KH] Glen, I think you are talking about Section 5 not 3, are you
looking at the current version
(http://ietfreport.isoc.org/all-ids/draft-ietf-hokey-key-mgm-09.txt)?  

Could you please re-check? I am sure your comments still apply, but I'd
like to know which parts are affected.

AFAIK, Section 5 is in complete alignment with RFC 5296 and uses the
same terminology and same protocol description. I understand that there
are some problems in RFC 5296 and there is a request for errata
(http://www.rfc-editor.org/errata_search.php?rfc=5296&eid=1825).

Should I wait until this (and possibly other) errata has been approved
and then modify the key management draft accordingly? If I make changes
now, with the current RFC 5296, we would have a description on how to
use KDE with ERP that does not match the description in RFC 5296.