IETF Logo Mail Archive

Re: [secdir] Secdir Review of draft-ietf-netconf-rfc5539bis-09

Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de> Wed, 11 March 2015 07:16 UTC

Return-Path: <j.schoenwaelder@jacobs-university.de>
X-Original-To: secdir@ietfa.amsl.com
Delivered-To: secdir@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 39AAE1A912B; Wed, 11 Mar 2015 00:16:04 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -3.86
X-Spam-Level:
X-Spam-Status: No, score=-3.86 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_MED=-2.3, T_RP_MATCHES_RCVD=-0.01] autolearn=ham
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 MiLIweo8OtvH; Wed, 11 Mar 2015 00:16:02 -0700 (PDT)
Received: from atlas3.jacobs-university.de (atlas3.jacobs-university.de [212.201.44.18]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id B748E1A9073; Wed, 11 Mar 2015 00:16:02 -0700 (PDT)
Received: from localhost (demetrius5.irc-it.jacobs-university.de [10.70.0.222]) by atlas3.jacobs-university.de (Postfix) with ESMTP id 895482DCC; Wed, 11 Mar 2015 08:16:01 +0100 (CET)
X-Virus-Scanned: amavisd-new at jacobs-university.de
Received: from atlas3.jacobs-university.de ([10.70.0.220]) by localhost (demetrius5.jacobs-university.de [10.70.0.222]) (amavisd-new, port 10030) with ESMTP id Q9y9UEY4Ac4C; Wed, 11 Mar 2015 08:15:48 +0100 (CET)
Received: from hermes.jacobs-university.de (hermes.jacobs-university.de [212.201.44.23]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "hermes.jacobs-university.de", Issuer "Jacobs University CA - G01" (verified OK)) by atlas3.jacobs-university.de (Postfix) with ESMTPS; Wed, 11 Mar 2015 08:16:00 +0100 (CET)
Received: from localhost (demetrius1.jacobs-university.de [212.201.44.46]) by hermes.jacobs-university.de (Postfix) with ESMTP id B85162003D; Wed, 11 Mar 2015 08:16:00 +0100 (CET)
X-Virus-Scanned: amavisd-new at jacobs-university.de
Received: from hermes.jacobs-university.de ([212.201.44.23]) by localhost (demetrius1.jacobs-university.de [212.201.44.32]) (amavisd-new, port 10024) with ESMTP id JpQOVjb0Aue9; Wed, 11 Mar 2015 08:15:59 +0100 (CET)
Received: from elstar.local (elstar.jacobs.jacobs-university.de [10.50.231.133]) by hermes.jacobs-university.de (Postfix) with ESMTP id 579D82003C; Wed, 11 Mar 2015 08:15:59 +0100 (CET)
Received: by elstar.local (Postfix, from userid 501) id 45F1A32769AF; Wed, 11 Mar 2015 08:15:59 +0100 (CET)
Date: Wed, 11 Mar 2015 08:15:59 +0100
From: Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
To: "t. p." <daedulus@btconnect.com>
Message-ID: <20150311071559.GC8717@elstar.local>
Mail-Followup-To: "t. p." <daedulus@btconnect.com>, Sam Hartman <hartmans-ietf@mit.edu>, ietf@ietf.org, secdir@ietf.org, iesg@ietf.org, draft-ietf-netconf-rfc5539bis.all@tools.ietf.org
References: <tsltwxtauij.fsf@mit.edu> <006c01d05b3c$c44eac40$4001a8c0@gateway.2wire.net>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Disposition: inline
In-Reply-To: <006c01d05b3c$c44eac40$4001a8c0@gateway.2wire.net>
User-Agent: Mutt/1.4.2.3i
Archived-At: <http://mailarchive.ietf.org/arch/msg/secdir/GLKhba82rRNsr8eJol68yzzQREU>
Cc: iesg@ietf.org, draft-ietf-netconf-rfc5539bis.all@tools.ietf.org, Sam Hartman <hartmans-ietf@mit.edu>, ietf@ietf.org, secdir@ietf.org
Subject: Re: [secdir] Secdir Review of draft-ietf-netconf-rfc5539bis-09
X-BeenThere: secdir@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
Reply-To: Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
List-Id: Security Area Directorate <secdir.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/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: Wed, 11 Mar 2015 07:16:04 -0000

On Tue, Mar 10, 2015 at 02:16:04PM +0000, t. p. wrote:
> ----- Original Message -----
> From: "Sam Hartman" <hartmans-ietf@mit.edu>
> To: "t.p." <daedulus@btconnect.com>
> Cc: "Sam Hartman" <hartmans-ietf@mit.edu>; <ietf@ietf.org>;
> <secdir@ietf.org>; <iesg@ietf.org>;
> <draft-ietf-netconf-rfc5539bis.all@tools.ietf.org>
> Sent: Tuesday, March 10, 2015 12:48 PM
> > >>>>> "t" == t p <daedulus@btconnect.com> writes:
> >
> > Well, I think you still need to answer questions like
> >
> > * Is it a fingerprint of the cert or the key?
> >
> > * Is the server expected to re-normalize the DER?    Allowed to
> >   re-normalize the DER?
> 
> Sam
> 
> Thank you for your comments.
> 
> The I-D specifies fingerprint of the certificate so that is specified.
> 
> Normalisation is not specified and is an interesting point; as you say,
> something to be considered.
>

The model follows RFC 6353 (STD 78) and I am not aware of any issues
that were reported against STD 78 because fingerprints do have issues
with being ambiguous. So are we talking about a real-world problem or
a problem that could exist in theory?

/js

-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
Fax:   +49 421 200 3103         <http://www.jacobs-university.de/>

v2.23.0 | Report a Bug | By Email