Re: [rtcweb] Resolving whether to support additional key management methods

Harald Alvestrand <harald@alvestrand.no> Fri, 05 October 2012 17:11 UTC

Return-Path: <harald@alvestrand.no>
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 CB32221F87AF for <rtcweb@ietfa.amsl.com>; Fri, 5 Oct 2012 10:11:10 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -110.399
X-Spam-Level:
X-Spam-Status: No, score=-110.399 tagged_above=-999 required=5 tests=[AWL=0.200, BAYES_00=-2.599, RCVD_IN_DNSWL_HI=-8, USER_IN_WHITELIST=-100]
Received: from mail.ietf.org ([64.170.98.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id A7GMHY2GqSes for <rtcweb@ietfa.amsl.com>; Fri, 5 Oct 2012 10:11:10 -0700 (PDT)
Received: from eikenes.alvestrand.no (eikenes.alvestrand.no [158.38.152.233]) by ietfa.amsl.com (Postfix) with ESMTP id 089B221F875E for <rtcweb@ietf.org>; Fri, 5 Oct 2012 10:11:10 -0700 (PDT)
Received: from localhost (localhost [127.0.0.1]) by eikenes.alvestrand.no (Postfix) with ESMTP id 08F9239E1D0 for <rtcweb@ietf.org>; Fri, 5 Oct 2012 19:11:08 +0200 (CEST)
X-Virus-Scanned: Debian amavisd-new at eikenes.alvestrand.no
Received: from eikenes.alvestrand.no ([127.0.0.1]) by localhost (eikenes.alvestrand.no [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 3VDAD9irnGH7 for <rtcweb@ietf.org>; Fri, 5 Oct 2012 19:11:07 +0200 (CEST)
Received: from hta-dell.lul.corp.google.com (unknown [IPv6:2620:0:1043:1:be30:5bff:fede:bcdc]) by eikenes.alvestrand.no (Postfix) with ESMTPSA id D3F3A39E1BD for <rtcweb@ietf.org>; Fri, 5 Oct 2012 19:11:06 +0200 (CEST)
Message-ID: <506F14AA.5020802@alvestrand.no>
Date: Fri, 05 Oct 2012 19:11:06 +0200
From: Harald Alvestrand <harald@alvestrand.no>
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:15.0) Gecko/20120827 Thunderbird/15.0
MIME-Version: 1.0
To: rtcweb@ietf.org
References: <CA+9kkMD6vG1e0eqgk75fiu_QFqEDJb6QaEqTTWE9n5LnTmFz_A@mail.gmail.com>
In-Reply-To: <CA+9kkMD6vG1e0eqgk75fiu_QFqEDJb6QaEqTTWE9n5LnTmFz_A@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Subject: Re: [rtcweb] Resolving whether to support additional key management methods
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: Fri, 05 Oct 2012 17:11:10 -0000

On 10/04/2012 05:32 PM, Ted Hardie wrote:
> The Chairs would like to foster resolution of the long-running
> discussion of support for additional key management methods, e.g. as
> described in draft-ohlsson-rtcweb-sdes-support and the meeting
> materials supporting draft-ietf-avtcore-srtp-ekt.   Working group
> discussion of this matter is, of course, welcome, but the chairs are
> also considering a virtual interim meeting in January of 2013, focused
> on this specific topic.  Comments on this plan or on the relevant
> approaches is welcome.

What is the proposed outcome space of this discussion?
We already have a decision of "MUST do DTLS(-SRTP)", but I'm not sure 
what the other questions are.

I could see the result of the SDES discussion being one of:

- MUST do SDES
- SHOULD do SDES
- MAY do SDES
- MUST NOT do SDES

I also see another discussion around EKT, which could conclude

- MUST do EKT
- MAY do EKT
- MUST NOT do EKT

(I don't see much point in "SHOULD do EKT" - it doesn't give 
interoperability, so is not much more useful than MAY)

Are there other things on the table? Are both of the above on the table?
>
> regards,
>
> Ted, Cullen, Magnus
> _______________________________________________
> rtcweb mailing list
> rtcweb@ietf.org
> https://www.ietf.org/mailman/listinfo/rtcweb