Re: [dns-privacy] Authentication in draft-ietf-dprive-opportunistic-adotq

Eric Rescorla <ekr@rtfm.com> Mon, 15 February 2021 23:06 UTC

Return-Path: <ekr@rtfm.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 C40AA3A12B6 for <dns-privacy@ietfa.amsl.com>; Mon, 15 Feb 2021 15:06:21 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.896
X-Spam-Level:
X-Spam-Status: No, score=-1.896 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HTML_MESSAGE=0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=rtfm-com.20150623.gappssmtp.com
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 YBwBqllcDKNJ for <dns-privacy@ietfa.amsl.com>; Mon, 15 Feb 2021 15:06:20 -0800 (PST)
Received: from mail-lj1-x22e.google.com (mail-lj1-x22e.google.com [IPv6:2a00:1450:4864:20::22e]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 08DE93A12B4 for <dprive@ietf.org>; Mon, 15 Feb 2021 15:06:20 -0800 (PST)
Received: by mail-lj1-x22e.google.com with SMTP id j6so9757964ljo.5 for <dprive@ietf.org>; Mon, 15 Feb 2021 15:06:19 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rtfm-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=9fhZt+ICvlOj19SVJmG5BV7XlA9NvbcgowkgZ/Wk680=; b=RLKovNoDDLopfEbeArG/DA3do5VxUR+qFZbEl8U20ZTnKj9q6Rn5eqaGQNbgtY0M0E jOptAwALBPHsfFzbeVGIRUh5ei1YBbtImCJMX7nuzikXD+aQU2Tr2je+muVh8o2BGUsV 16FDFotkhAvhn0/Sfqucbpu84JJ7FVcOsG0VyzrG9xRsbp1ggAu9cRJCnW5F1WblQ6F0 uRxTwsFsr+vN3VxL0+X030bYLXD1cTqsaJx9JVOUWwCXWVToXowmntqiQZ6iItcOR/6o fCRA6bN/wSVuhkpZ+xxvJCmVNPDItzS/gGItPBuxdY+c2yex4/WU9Johzo2y6Hs2ZyWG sqXg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=9fhZt+ICvlOj19SVJmG5BV7XlA9NvbcgowkgZ/Wk680=; b=S3oP7CnVRIwMraRH3AtdgFu3qxgjYqDMCmaylrMdhHvatbiDq8aDiJx5R+IDxrdsCm a6sWVR9MvvhTAprQIADoyYrA99cV7OTqtVLhb8SushlaJUh0oZdpbKJ9mfvX/knl7SFt ctwnn0/418XSD//gbpryCW+C7Yz8iDW0+h812Vw/CGX70utJOLmqDDg0pHWFDFT22s1N u/ncvRoSyHZyxYq2P5TqoEa+xpryLcYkS2Ojq+/IMMOkLQAt8kYbKtAvXMkEZ6D+UmIW uWzmNFKgOMbJExtLA9w7VdFTklxlGgkUOxp+mDaop7DS5DwgrEMokyul8vmepxeuu8dj 4Z0g==
X-Gm-Message-State: AOAM533g9+YmHiefwTuv6qywxPhBqbragt0YcqR/Vn/kld3sAi7Ew7YQ VAqJefR2/4ebWWScgCNkydm1JZE4sjujUdQa71nOoA==
X-Google-Smtp-Source: ABdhPJzN/+vFUjO7iBJzHVZMnk0s+fH7icnwaddOkH5etT+YAUy+jflK8ZHwXDw5PdQPNRHGiCpCtYsnBnjW3ccrhGQ=
X-Received: by 2002:a2e:320d:: with SMTP id y13mr771950ljy.217.1613430377312; Mon, 15 Feb 2021 15:06:17 -0800 (PST)
MIME-Version: 1.0
References: <230F580F-BA87-4921-B45B-2909ACE385B1@icann.org> <CABcZeBPcBT0UY-ghaMm_nN+qZ+B0ozmCfK30XX-R05z+PLtqmQ@mail.gmail.com> <137b74ff-887f-056a-74e3-7a80358b5156@cs.tcd.ie> <CABcZeBMyULUznkCVzxb6ufCx1XaT1zKx0jLLwxXhL7hRwMkv+A@mail.gmail.com> <fd132f9d-630e-112d-d777-0e6a7a767e84@cs.tcd.ie> <CABcZeBOX1g6EMcNuBvjfTehh6TeOA1BaoLf6Ofrev_foVKEZBA@mail.gmail.com> <209af62e-f8b8-9a6f-fb45-f3e143172207@cs.tcd.ie>
In-Reply-To: <209af62e-f8b8-9a6f-fb45-f3e143172207@cs.tcd.ie>
From: Eric Rescorla <ekr@rtfm.com>
Date: Mon, 15 Feb 2021 15:05:41 -0800
Message-ID: <CABcZeBNJFsp9eUo7RNbOZbD6=7fQg+90pOooucO5gQBiS1Z2fw@mail.gmail.com>
To: Stephen Farrell <stephen.farrell@cs.tcd.ie>
Cc: Paul Hoffman <paul.hoffman@icann.org>, "dprive@ietf.org" <dprive@ietf.org>
Content-Type: multipart/alternative; boundary="0000000000008286d905bb68081b"
Archived-At: <https://mailarchive.ietf.org/arch/msg/dns-privacy/EqaGgtxHQOkds4idGdiNBfI0Yq0>
Subject: Re: [dns-privacy] Authentication in draft-ietf-dprive-opportunistic-adotq
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: Mon, 15 Feb 2021 23:06:22 -0000

On Mon, Feb 15, 2021 at 3:04 PM Stephen Farrell <stephen.farrell@cs.tcd.ie>
wrote:

>
>
> On 15/02/2021 22:58, Eric Rescorla wrote:
> > I don't recall. My sense was that people didn't like it being WebPKI
> rather
> > than DNSSEC, but maybe there's some more fatal reason? If so, I'd
> certainly
> > appreciate a link to that shooting down.
>
> Forget, sorry. Can look tomorrow or maybe someone'll beat
> me to it - best I recall is maybe that renaming loadsa NSes
> is a non-starter, and getting that into the parent zone is
> a double non-starter. Even if you somehow did it alongside
> the current NS names for a while, load-balancing may break
> whenever a non-supporting recursive randomly lands on the
> <sentinel>.example.org instance.
>
> Something like that anyway IIRC.
>

Sure, I can believe that. I'm not any kind of DNS expert, but it's hard to
believe we can't invent *some* signal that you use to ask whoever served
you the NS records.

-Ekr


> S
>