[TLS] Review of draft-ietf-tls-cached-info-16

Ilari Liusvaara <ilari.liusvaara@elisanet.fi> Sun, 17 August 2014 11:07 UTC

Return-Path: <ilari.liusvaara@elisanet.fi>
X-Original-To: tls@ietfa.amsl.com
Delivered-To: tls@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 76E291A082C for <tls@ietfa.amsl.com>; Sun, 17 Aug 2014 04:07:31 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -0.002
X-Spam-Level:
X-Spam-Status: No, score=-0.002 tagged_above=-999 required=5 tests=[BAYES_40=-0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001] 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 Cp_UWsWxXFzg for <tls@ietfa.amsl.com>; Sun, 17 Aug 2014 04:07:28 -0700 (PDT)
Received: from emh04.mail.saunalahti.fi (emh04.mail.saunalahti.fi [62.142.5.110]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 3D93A1A082A for <tls@ietf.org>; Sun, 17 Aug 2014 04:07:26 -0700 (PDT)
Received: from LK-Perkele-VII (a88-112-44-140.elisa-laajakaista.fi [88.112.44.140]) by emh04.mail.saunalahti.fi (Postfix) with ESMTP id 4F2B01A2641 for <tls@ietf.org>; Sun, 17 Aug 2014 14:07:19 +0300 (EEST)
Date: Sun, 17 Aug 2014 14:07:19 +0300
From: Ilari Liusvaara <ilari.liusvaara@elisanet.fi>
To: tls mailing list <tls@ietf.org>
Message-ID: <20140817110719.GA583@LK-Perkele-VII>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
User-Agent: Mutt/1.5.23 (2014-03-12)
Sender: Ilari Liusvaara <ilari.liusvaara@elisanet.fi>
Archived-At: http://mailarchive.ietf.org/arch/msg/tls/t4Mgu08BXe1GDo2CgLoyeWfMJkU
Subject: [TLS] Review of draft-ietf-tls-cached-info-16
X-BeenThere: tls@ietf.org
X-Mailman-Version: 2.1.15
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: <http://www.ietf.org/mail-archive/web/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: Sun, 17 Aug 2014 11:07:31 -0000

Doing a quick readthrough (since this doc is allegedly in WGLC).

> 4. Exchange Specification

>   The handshake protocol MUST proceed using the information as if it
>   was provided in the handshake protocol.  The Finished message MUST be
>   calculated over the actual data exchanged in the handshake protocol.
>   That is, the Finished message will be calculated over the information
>   that was omitted from transmission by means of its present hash in
>   the client hello and not through its presence in the handshake
>   exchange.

CertificateVerify messages also use transcripts. Those are defined
as usual[1] (like Finished seems to be), right?


[1] Omitted data is indirectly included via hashes present in
ClientHello/ServerHello.


-Ilari