IETF Logo Mail Archive

Re: [stir] I-D Action: draft-ietf-stir-certificates-17.txt

Russ Housley <housley@vigilsec.com> Thu, 14 December 2017 21:20 UTC

Return-Path: <housley@vigilsec.com>
X-Original-To: stir@ietfa.amsl.com
Delivered-To: stir@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1F9E91270A3 for <stir@ietfa.amsl.com>; Thu, 14 Dec 2017 13:20:03 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.899
X-Spam-Level:
X-Spam-Status: No, score=-1.899 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, 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 HD_sxkx_I2xY for <stir@ietfa.amsl.com>; Thu, 14 Dec 2017 13:20:01 -0800 (PST)
Received: from mail.smeinc.net (mail.smeinc.net [209.135.209.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id BE5FF1200C1 for <stir@ietf.org>; Thu, 14 Dec 2017 13:20:01 -0800 (PST)
Received: from localhost (localhost [127.0.0.1]) by mail.smeinc.net (Postfix) with ESMTP id 2051D300681 for <stir@ietf.org>; Thu, 14 Dec 2017 16:20:01 -0500 (EST)
X-Virus-Scanned: amavisd-new at mail.smeinc.net
Received: from mail.smeinc.net ([127.0.0.1]) by localhost (mail.smeinc.net [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id ZX04wDGuKy9W for <stir@ietf.org>; Thu, 14 Dec 2017 16:19:59 -0500 (EST)
Received: from new-host.home (pool-108-45-101-150.washdc.fios.verizon.net [108.45.101.150]) by mail.smeinc.net (Postfix) with ESMTPSA id 9E73230029C; Thu, 14 Dec 2017 16:19:59 -0500 (EST)
Content-Type: text/plain; charset="utf-8"
Mime-Version: 1.0 (Mac OS X Mail 10.3 \(3273\))
From: Russ Housley <housley@vigilsec.com>
In-Reply-To: <07AB7CB1-E5A2-45EE-B90E-B11E6A04C018@sn3rd.com>
Date: Thu, 14 Dec 2017 16:19:59 -0500
Cc: IETF STIR Mail List <stir@ietf.org>
Content-Transfer-Encoding: quoted-printable
Message-Id: <1AF855C9-7129-4098-A137-2CF6099A3A1C@vigilsec.com>
References: <151326691971.6099.4107849780973461328@ietfa.amsl.com> <7E30739D-C21C-466E-8C3A-8395171C253D@sn3rd.com> <CABkgnnXCizOyLkJzSR-MHo97O2feOiGXfOVFZeQPoNzj4m452g@mail.gmail.com> <07AB7CB1-E5A2-45EE-B90E-B11E6A04C018@sn3rd.com>
To: Sean Turner <sean@sn3rd.com>, Martin Thomson <martin.thomson@gmail.com>
X-Mailer: Apple Mail (2.3273)
Archived-At: <https://mailarchive.ietf.org/arch/msg/stir/gYKXTT_G6X1pXVmGTG8EgAGiG8I>
Subject: Re: [stir] I-D Action: draft-ietf-stir-certificates-17.txt
X-BeenThere: stir@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: Secure Telephone Identity Revisited <stir.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/stir>, <mailto:stir-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/stir/>
List-Post: <mailto:stir@ietf.org>
List-Help: <mailto:stir-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/stir>, <mailto:stir-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 14 Dec 2017 21:20:03 -0000

> On Dec 14, 2017, at 12:59 PM, Sean Turner <sean@sn3rd.com> wrote:
> 
> Bit to quick in my response, to address the 2nd point:
> 
>> On Dec 14, 2017, at 11:42, Martin Thomson <martin.thomson@gmail.com> wrote:
>> 
>> "123"+900 is now equivalent to "123"+876, which means that you have
>> two ways to represent the same thing.  Don't we try to avoid that in
>> certificates?  (I mean otherwise we'd use BER...)
> 
> As far encoding something the same way: I’d be worried if “123”+900 and “123”+876 resulted in the same DER code, but it doesn’t.

No, this bits on the wire are different, but they specify the same block of telephone numbers.  Why do we want more than one way to specify the same block of numbers?

Russ

v2.23.0 | Report a Bug | By Email