IETF Logo Mail Archive

Re: [rtcweb] Consent freshness in the light of no-SDES (Re: Adopting draft-muthu-behave-consent-freshness?)

Martin Thomson <martin.thomson@gmail.com> Mon, 09 September 2013 18:07 UTC

Return-Path: <martin.thomson@gmail.com>
X-Original-To: rtcweb@ietfa.amsl.com
Delivered-To: rtcweb@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A32E311E811F for <rtcweb@ietfa.amsl.com>; Mon, 9 Sep 2013 11:07:12 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.6
X-Spam-Level:
X-Spam-Status: No, score=-2.6 tagged_above=-999 required=5 tests=[AWL=0.000, BAYES_00=-2.599, NO_RELAYS=-0.001]
Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 2xyExWJ2HNRP for <rtcweb@ietfa.amsl.com>; Mon, 9 Sep 2013 11:07:05 -0700 (PDT)
Received: from mail-we0-x230.google.com (mail-we0-x230.google.com [IPv6:2a00:1450:400c:c03::230]) by ietfa.amsl.com (Postfix) with ESMTP id 2CE5E21F9C9A for <rtcweb@ietf.org>; Mon, 9 Sep 2013 11:07:05 -0700 (PDT)
Received: by mail-we0-f176.google.com with SMTP id u56so5606338wes.21 for <rtcweb@ietf.org>; Mon, 09 Sep 2013 11:06:56 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=9XQpwNQFXqPyYDBr+tlQxcCAI2lDMlalgxVArrAn05s=; b=Wm8QLsJqGG2+RwOGClmwoc/lqF/jj6+RYXE7aKeNA1ts01e6IJAVFMQ0L5MarSHEnI No/hqXMOnetEPyRRHJFXzHRfB7v0Fbg+t6ggHwTGsqhIxX13OFHsnb/S65JpohnM6zYK LOK/9+Hyxm57Wg4OHX2D0ZZ+P49JX/jVbnSat2MS0EqOHGUVlPQvmR5D9/XF3oF9RzTR qJHnv3l57LjCqQ4Dy6TDmeX8f0jzmwzt4pR31D37Hmu5VlZNTuVphlGRBy/Nf6+2QcBd gbNe/2jq6PdK2r2DbUH3eAWvGIJyKqlAc0ympdRwy5vtL5LC0V2J0XahSRzXcGTOdudc 6Adg==
MIME-Version: 1.0
X-Received: by 10.180.108.162 with SMTP id hl2mr1246791wib.14.1378750015440; Mon, 09 Sep 2013 11:06:55 -0700 (PDT)
Received: by 10.194.28.39 with HTTP; Mon, 9 Sep 2013 11:06:55 -0700 (PDT)
In-Reply-To: <7594FB04B1934943A5C02806D1A2204B1C49B5F7@ESESSMB209.ericsson.se>
References: <522D88A8.3010209@ericsson.com> <7594FB04B1934943A5C02806D1A2204B1C49B5A1@ESESSMB209.ericsson.se> <522DBEB8.5090207@alvestrand.no> <7594FB04B1934943A5C02806D1A2204B1C49B5F7@ESESSMB209.ericsson.se>
Date: Mon, 09 Sep 2013 11:06:55 -0700
Message-ID: <CABkgnnXpVZVXxdpveXCQQs5n63nCAAR-61RnYpqMvJOvScXkTA@mail.gmail.com>
From: Martin Thomson <martin.thomson@gmail.com>
To: Christer Holmberg <christer.holmberg@ericsson.com>
Content-Type: text/plain; charset="UTF-8"
Cc: "rtcweb@ietf.org" <rtcweb@ietf.org>
Subject: Re: [rtcweb] Consent freshness in the light of no-SDES (Re: Adopting draft-muthu-behave-consent-freshness?)
X-BeenThere: rtcweb@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: Real-Time Communication in WEB-browsers working group list <rtcweb.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/rtcweb>, <mailto:rtcweb-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/rtcweb>
List-Post: <mailto:rtcweb@ietf.org>
List-Help: <mailto:rtcweb-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/rtcweb>, <mailto:rtcweb-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 09 Sep 2013 18:07:12 -0000

On 9 September 2013 05:44, Christer Holmberg
<christer.holmberg@ericsson.com> wrote:
> And, from a security perspective (the backward compatibility is a separate issue) the requirement to integrity protect the STUN binding requests are not affected by the SDES decision?

Integrity protection prevents an on-path attacker who is ignorant of
ICE credentials from artificially extending consent.  That's a fairly
restricted set.

The whole SDES interaction with consent is pretty weak, if you ask me.

v2.23.0 | Report a Bug | By Email