Re: [dns-privacy] Registry framework for draft-ietf-dprive-early-data

Peter van Dijk <peter.van.dijk@powerdns.com> Fri, 31 July 2020 20:32 UTC

Return-Path: <peter.van.dijk@powerdns.com>
X-Original-To: dns-privacy@ietfa.amsl.com
Delivered-To: dns-privacy@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 4E4E33A0B63 for <dns-privacy@ietfa.amsl.com>; Fri, 31 Jul 2020 13:32:22 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.63
X-Spam-Level:
X-Spam-Status: No, score=-1.63 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, KHOP_HELO_FCRDNS=0.267, SPF_HELO_NONE=0.001, SPF_NONE=0.001, URIBL_BLOCKED=0.001] autolearn=no 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 eZXTm8uqfew5 for <dns-privacy@ietfa.amsl.com>; Fri, 31 Jul 2020 13:32:19 -0700 (PDT)
Received: from mx4.open-xchange.com (alcatraz.open-xchange.com [87.191.39.187]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id C88E63A0B60 for <dns-privacy@ietf.org>; Fri, 31 Jul 2020 13:32:19 -0700 (PDT)
Received: from open-xchange.com (imap.open-xchange.com [10.20.30.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx4.open-xchange.com (Postfix) with ESMTPS id 7C61F6A29C; Fri, 31 Jul 2020 22:32:18 +0200 (CEST)
Received: from plato (e82143.upc-e.chello.nl [213.93.82.143]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by open-xchange.com (Postfix) with ESMTPSA id 566C73C0045; Fri, 31 Jul 2020 22:32:18 +0200 (CEST)
Message-ID: <fd84b1c5929f27f43c363c9fe4e5a95c6b9bedab.camel@powerdns.com>
From: Peter van Dijk <peter.van.dijk@powerdns.com>
To: "dns-privacy@ietf.org" <dns-privacy@ietf.org>
Date: Fri, 31 Jul 2020 22:32:17 +0200
In-Reply-To: <20200723115702.GA5505@wakko.flat11.house>
References: <d812edb8-b3b3-d1db-13e8-8da9a945516d@innovationslab.net> <20200722192652.GA486629@LK-Perkele-VII> <20200723115702.GA5505@wakko.flat11.house>
Organization: PowerDNS.COM B.V.
Content-Type: text/plain; charset="UTF-8"
User-Agent: Evolution 3.30.5-1.1
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Archived-At: <https://mailarchive.ietf.org/arch/msg/dns-privacy/dJV4vDnipdnmnSvtGW0E7W1IXTQ>
Subject: Re: [dns-privacy] Registry framework for draft-ietf-dprive-early-data
X-BeenThere: dns-privacy@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: <dns-privacy.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/dns-privacy>, <mailto:dns-privacy-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/dns-privacy/>
List-Post: <mailto:dns-privacy@ietf.org>
List-Help: <mailto:dns-privacy-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/dns-privacy>, <mailto:dns-privacy-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 31 Jul 2020 20:32:24 -0000

On Thu, 2020-07-23 at 12:57 +0100, alessandro@ghedini.me wrote:
> Are you saying we shouldn't have a list of allowed RR types at all and just
> limiting to QUERY messages is enough? I asked this question at the last meeting
> and the responses were mixed.

Looking at the list of types, I can't even guess why these types would
be safe and others would not be. If you're going to have a list, it
would be good to explain why those types are on it and the rest is not.

> I'm not against removing the list btw, though I guess it would be helpful to
> hear from people who disagree on why they disagree.

I'm no expert on 0-RTT, but I suspect a list of types does not make a lot of sense here. Either early data is safe (for the QUERY opcode), or it's not, unless I'm missing something.
 
Kind regards,
-- 
Peter van Dijk
PowerDNS.COM BV - https://www.powerdns.com/