Re: [TLS] Call for adoption of draft-sullivan-tls-exported-authenticator

Ilari Liusvaara <ilariliusvaara@welho.com> Sat, 15 April 2017 13:41 UTC

Return-Path: <ilariliusvaara@welho.com>
X-Original-To: tls@ietfa.amsl.com
Delivered-To: tls@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 84781120727 for <tls@ietfa.amsl.com>; Sat, 15 Apr 2017 06:41:58 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.901
X-Spam-Level:
X-Spam-Status: No, score=-1.901 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, RP_MATCHES_RCVD=-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 oTV0TCFBYkng for <tls@ietfa.amsl.com>; Sat, 15 Apr 2017 06:41:56 -0700 (PDT)
Received: from welho-filter1.welho.com (welho-filter1.welho.com [83.102.41.23]) by ietfa.amsl.com (Postfix) with ESMTP id 7F05712709D for <tls@ietf.org>; Sat, 15 Apr 2017 06:41:55 -0700 (PDT)
Received: from localhost (localhost [127.0.0.1]) by welho-filter1.welho.com (Postfix) with ESMTP id 777891FCA4 for <tls@ietf.org>; Sat, 15 Apr 2017 16:41:53 +0300 (EEST)
X-Virus-Scanned: Debian amavisd-new at pp.htv.fi
Received: from welho-smtp2.welho.com ([IPv6:::ffff:83.102.41.85]) by localhost (welho-filter1.welho.com [::ffff:83.102.41.23]) (amavisd-new, port 10024) with ESMTP id 4NEfDv41NISQ for <tls@ietf.org>; Sat, 15 Apr 2017 16:41:53 +0300 (EEST)
Received: from LK-Perkele-V2 (87-92-51-204.bb.dnainternet.fi [87.92.51.204]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by welho-smtp2.welho.com (Postfix) with ESMTPSA id 32D5521C for <tls@ietf.org>; Sat, 15 Apr 2017 16:41:53 +0300 (EEST)
Date: Sat, 15 Apr 2017 16:41:52 +0300
From: Ilari Liusvaara <ilariliusvaara@welho.com>
To: "tls@ietf.org" <tls@ietf.org>
Message-ID: <20170415134152.GA7893@LK-Perkele-V2.elisa-laajakaista.fi>
References: <CAOgPGoCvpjoexe0u2bT+P5eO75L2UbAtmCOx_1x+WxWvv8ktPA@mail.gmail.com> <20170414114425.GA3649@LK-Perkele-V2.elisa-laajakaista.fi>
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Disposition: inline
In-Reply-To: <20170414114425.GA3649@LK-Perkele-V2.elisa-laajakaista.fi>
User-Agent: Mutt/1.5.23 (2014-03-12)
Sender: ilariliusvaara@welho.com
Archived-At: <https://mailarchive.ietf.org/arch/msg/tls/faP1HJJg3drLkyuohvyf_Rw-tJM>
Subject: Re: [TLS] Call for adoption of draft-sullivan-tls-exported-authenticator
X-BeenThere: tls@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: "This is the mailing list for the Transport Layer Security working group of the IETF." <tls.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/tls>, <mailto:tls-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/tls/>
List-Post: <mailto:tls@ietf.org>
List-Help: <mailto:tls-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/tls>, <mailto:tls-request@ietf.org?subject=subscribe>
X-List-Received-Date: Sat, 15 Apr 2017 13:41:58 -0000

On Fri, Apr 14, 2017 at 02:44:25PM +0300, Ilari Liusvaara wrote:
> On Thu, Apr 13, 2017 at 09:29:27PM -0700, Joseph Salowey wrote:
> > Hey Folks,
> > 
> > At the IETF 98 meeting in Chicago there was support in the room to adopt
> > draft-sullivan-tls-exported-authenticator [0]. We are looking for feedback
> > on adopting this draft form the list. Please respond if you support the
> > draft and are willing to review it. If you object to its adoption, please
> > let us know why. Please respond to the list by 20170501
> > 
> 
> Looking at the draft and reviewing it:

Another edge-case I figured:

How do certificate type extensions (#9, #19 and #20) work with exported
authenticators?

Where other extensions are either meaningless or are edditional info,
certificate types actually change the format of the first certificate,
which the library needs to understand in order to extract the SPKI for
validating the following CertificateVerify.


-Ilari