Re: [Model-t] Next steps from Tuesday's breakfast meeting

Stephen Farrell <stephen.farrell@cs.tcd.ie> Fri, 22 November 2019 04:31 UTC

Return-Path: <stephen.farrell@cs.tcd.ie>
X-Original-To: model-t@ietfa.amsl.com
Delivered-To: model-t@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5DF6C12003F for <model-t@ietfa.amsl.com>; Thu, 21 Nov 2019 20:31:13 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -4.3
X-Spam-Level:
X-Spam-Status: No, score=-4.3 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cs.tcd.ie
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 EoUTbSPxBYRU for <model-t@ietfa.amsl.com>; Thu, 21 Nov 2019 20:31:11 -0800 (PST)
Received: from mercury.scss.tcd.ie (mercury.scss.tcd.ie [134.226.56.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 847B712091D for <model-t@iab.org>; Thu, 21 Nov 2019 20:31:10 -0800 (PST)
Received: from localhost (localhost [127.0.0.1]) by mercury.scss.tcd.ie (Postfix) with ESMTP id 4C541BE3E; Fri, 22 Nov 2019 04:31:08 +0000 (GMT)
X-Virus-Scanned: Debian amavisd-new at scss.tcd.ie
Received: from mercury.scss.tcd.ie ([127.0.0.1]) by localhost (mercury.scss.tcd.ie [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id e__OL-SdZVoU; Fri, 22 Nov 2019 04:31:06 +0000 (GMT)
Received: from [31.133.146.56] (unknown [31.133.146.56]) by mercury.scss.tcd.ie (Postfix) with ESMTPSA id 5A108BE2E; Fri, 22 Nov 2019 04:31:05 +0000 (GMT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cs.tcd.ie; s=mail; t=1574397066; bh=J6is2WqgsdJU6M4yMcvZLwSZ1AZ0OtuaoptDJANdk1k=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=gPRi8lA2QpQsv4Ap88Kibt8FG5V/yEzSQuqtWXDB87FmJObbULaXoPGtyGROIY2sh ih+hAQAYf8Q6HbF4YeZYby23Hs4dPvyb2UojmtbaWo5qoxR+NdJTGp0q6Nvf+qjK5K Q3Y4sK7e370dAk8GYxMkCu5fLwrmnkhUIH3zs9uw=
To: Jari Arkko <jari.arkko@piuha.net>, Melinda Shore <melinda.shore@nomountain.net>
Cc: model-t@iab.org
References: <A35A9A80-80A4-41A4-8C9B-4A964D565854@isoc.org> <b46fcb4d-45a6-3efd-a93e-357571bde679@nomountain.net> <2B51AC31-F1E5-4A26-BA9E-F2C5A467059F@piuha.net>
From: Stephen Farrell <stephen.farrell@cs.tcd.ie>
Autocrypt: addr=stephen.farrell@cs.tcd.ie; prefer-encrypt=mutual; keydata= mQINBFo9UDIBEADUH4ZPcUnX5WWRWO4kEkHea5Y5eEvZjSwe/YA+G0nrTuOU9nemCP5PMvmh 5Cg8gBTyWyN4Z2+O25p9Tja5zUb+vPMWYvOtokRrp46yhFZOmiS5b6kTq0IqYzsEv5HI58S+ QtaFq978CRa4xH9Gi9u4yzUmT03QNIGDXE37honcAM4MOEtEgvw4fVhVWJuyy3w//0F2tzKr EMjmL5VGuD/Q9+G/7abuXiYNNd9ZFjv4625AUWwy+pAh4EKzS1FE7BOZp9daMu9MUQmDqtZU bUv0Q+DnQAB/4tNncejJPz0p2z3MWCp5iSwHiQvytYgatMp34a50l6CWqa13n6vY8VcPlIqO Vz+7L+WiVfxLbeVqBwV+4uL9to9zLF9IyUvl94lCxpscR2kgRgpM6A5LylRDkR6E0oudFnJg b097ZaNyuY1ETghVB5Uir1GCYChs8NUNumTHXiOkuzk+Gs4DAHx/a78YxBolKHi+esLH8r2k 4LyM2lp5FmBKjG7cGcpBGmWavACYEa7rwAadg4uBx9SHMV5i33vDXQUZcmW0vslQ2Is02NMK 7uB7E7HlVE1IM1zNkVTYYGkKreU8DVQu8qNOtPVE/CdaCJ/pbXoYeHz2B1Nvbl9tlyWxn5Xi HzFPJleXc0ksb9SkJokAfwTSZzTxeQPER8la5lsEEPbU/cDTcwARAQABtDJTdGVwaGVuIEZh cnJlbGwgKDIwMTcpIDxzdGVwaGVuLmZhcnJlbGxAY3MudGNkLmllPokCQAQTAQgAKgIbAwUJ CZQmAAULCQgHAgYVCAkKCwIEFgIDAQIeAQIXgAUCWj6jdwIZAQAKCRBasvrxexcr6o7QD/9m x9DPJetmW794RXmNTrbTJ44zc/tJbcLdRBh0KBn9OW/EaAqjDmgNJeCMyJTKr1ywaps8HGUN hLEVkc14NUpgi4/Zkrbi3DmTp25OHj6wXBS5qVMyVynTMEIjOfeFFyxG+48od+Xn7qg6LT7G rHeNf+z/r0v9+8eZ1Ip63kshQDGhhpmRMKu4Ws9ZvTW2ACXkkTFaSGYJj3yIP4R6IgwBYGMz DXFX6nS4LA1s3pcPNxOgrvCyb60AiJZTLcOk/rRrpZtXB1XQc23ZZmrlTkl2HaThL6w3YKdi Ti1NbuMeOxZqtXcUshII45sANm4HuWNTiRh93Bn5bN6ddjgsaXEZBKUBuUaPBl7gQiQJcAlS 3MmGgVS4ZoX8+VaPGpXdQVFyBMRFlOKOC5XJESt7wY0RE2C8PFm+5eywSO/P1fkl9whkMgml 3OEuIQiP2ehRt/HVLMHkoM9CPQ7t6UwdrXrvX+vBZykav8x9U9M6KTgfsXytxUl6Vx5lPMLi 2/Jrsz6Mzh/IVZa3xjhq1OLFSI/tT2ji4FkJDQbO+yYUDhcuqfakDmtWLMxecZsY6O58A/95 8Qni6Xeq+Nh7zJ7wNcQOMoDGj+24di2TX1cKLzdDMWFaWzlNP5dB5VMwS9Wqj1Z6TzKjGjru q8soqohwb2CK9B3wzFg0Bs1iBI+2RuFnxLkCDQRaPVAyARAA+g3R0HzGr/Dl34Y07XqGqzq5 SU0nXIu9u8Ynsxj7gR5qb3HgUWYEWrHW2jHOByXnvkffucf5yzwrsvw8Q8iI8CFHiTYHPpey 4yPVn6R0w/FOMcY70eTIu/k6EEFDlDbs09DtKcrsT9bmN0XoRxITlXwWTufYqUnmS+YkAuk+ TLCtUin7OdaS2uU6Ata3PLQSeM2ZsUQMmYmHPwB9rmf+q2I005AJ9Q1SPQ2KNg/8xOGxo13S VuaSqYRQdpV93RuCOzg4vuXtR+gP0KQrus/P2ZCEPvU9cXF/2MIhXgOz207lv3iE2zGyNXld /n8spvWk+0bH5Zqd9Wcba/rGcBhmX9NKKDARZqjkv/zVEP1X97w1HsNYeUFNcg2lk9zQKb4v l1jx/Uz8ukzH2QNhU4R39dbF/4AwWuSVkGW6bTxHJqGs6YimbfdQqxTzmqFwz3JP0OtXX5q/ 6D4pHwcmJwEiDNzsBLl6skPSQ0Xyq3pua/qAP8MVm+YxCxJQITqZ8qjDLzoe7s9X6FLLC/DA L9kxl5saVSfDbuI3usH/emdtn0NA9/M7nfgih92zD92sl1yQXHT6BDa8xW1j+RU4P+E0wyd7 zgB2UeYgrp2IIcfG+xX2uFG5MJQ/nYfBoiALb0+dQHNHDtFnNGY3Oe8z1M9c5aDG3/s29QbJ +w7hEKKo9YMAEQEAAYkCJQQYAQgADwUCWj1QMgIbDAUJCZQmAAAKCRBasvrxexcr6qwvD/9b Rek3kfN8Q+jGrKl8qwY8HC5s4mhdDJZI/JP2FImf5J2+d5/e8UJ4fcsT79E0/FqX3Z9wZr6h sofPqLh1/YzDsYkZDHTYSGrlWGP/I5kXwUmFnBZHzM3WGrL3S7ZmCYMdudhykxXXjq7M6Do1 oxM8JofrXGtwBTLv5wfvvygJouVCVe87Ge7mCeY5vey1eUi4zSSF1zPpR6gg64w2g4TXM5qt SwkZVOv1g475LsGlYWRuJV8TA67yp1zJI7HkNqCo8KyHX0DPOh9c+Sd9ZX4aqKfqH9HIpnCL AYEgj7vofeix7gM3kQQmwynqq32bQGQBrKJEYp2vfeO30VsVx4dzuuiC5lyjUccVmw5D72J0 FlGrfEm0kw6D1qwyBg0SAMqamKN6XDdjhNAtXIaoA2UMZK/vZGGUKbqTgDdk0fnzOyb2zvXK CiPFKqIPAqKaDHg0JHdGI3KpQdRNLLzgx083EqEc6IAwWA6jSz+6lZDV6XDgF0lYqAYIkg3+ 6OUXUv6plMlwSHquiOc/MQXHfgUP5//Ra5JuiuyCj954FD+MBKIj8eWROfnzyEnBplVHGSDI ZLzL3pvV14dcsoajdeIH45i8DxnVm64BvEFHtLNlnliMrLOrk4shfmWyUqNlzilXN2BTFVFH 4MrnagFdcFnWYp1JPh96ZKjiqBwMv/H0kw==
Message-ID: <f4476245-f68f-17b1-0983-e3c54de16645@cs.tcd.ie>
Date: Fri, 22 Nov 2019 04:30:55 +0000
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.2
MIME-Version: 1.0
In-Reply-To: <2B51AC31-F1E5-4A26-BA9E-F2C5A467059F@piuha.net>
Content-Type: multipart/signed; micalg="pgp-sha512"; protocol="application/pgp-signature"; boundary="dgAnnNu4FEj7XWMxrKmDdSqhyF0JbYMQb"
Archived-At: <https://mailarchive.ietf.org/arch/msg/model-t/etGSun29AGXrhe58M5c3Hc5F6PE>
Subject: Re: [Model-t] Next steps from Tuesday's breakfast meeting
X-BeenThere: model-t@iab.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Discussions of changes in Internet deployment patterns and their impact on the Internet threat model <model-t.iab.org>
List-Unsubscribe: <https://www.iab.org/mailman/options/model-t>, <mailto:model-t-request@iab.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/model-t/>
List-Post: <mailto:model-t@iab.org>
List-Help: <mailto:model-t-request@iab.org?subject=help>
List-Subscribe: <https://www.iab.org/mailman/listinfo/model-t>, <mailto:model-t-request@iab.org?subject=subscribe>
X-List-Received-Date: Fri, 22 Nov 2019 04:31:13 -0000

Hiya,

I agree with all below except I'd not say "competing." The
way I think about it is people are working independently on
more or less the same thing but from different perspectives
and bringing different backgrounds. And that's a good
thing.

So I hope we don't think about this in terms of competition
but rather as a set of people taking different paths to
what we hope might be the same destination.

Cheers,
S.

On 22/11/2019 04:09, Jari Arkko wrote:
> Thanks Robin and all.
> 
> On Melinda’s question — the following is my personal opinion:
> 
> First off, I think we need to produce IETF outputs. It is great that
> the IAB has kicked off work and is hosting the mailing list, but I
> ultimately this is primarily IETF results. Definitely the 3552 change
> needs to be.
> 
> Secondly, as Stephen says we’ll benefit from some parallel and
> independent works at the moment. That being said, I think there’s
> some value in brainstorming a bit even in the short term about where
> the different pieces of work might develop into. I’ve also chatted
> with some of you about this. From the document that me and Stephen
> have, we’re going to do one round of introducing additional
> materials, already in ÷  on our editor’s version but not yet
> published. Things like taking into account points made in our meeting
> this week and at the SAAG meeting last time. But moving forward, I
> think I see our document evolving/split into different parts:
> 
> * Analysis of why things have changed & architectural considerations
> (the bulk of our current doc) * Suggested edits to 3552 (we have some
> of that now, but I suspect at some point someone is going to write a
> cleaner and better standalone document about it) * Guidelines for
> designers on what to do avoid some of the issues (we have some of
> that, but again might be better as standalone document, or perhaps
> with competing proposals)
> 
> But in addition to this, there are many other parts that might
> benefit from having independent documents. E.g., a discussion of
> attacks and issues that we’ve seen that support the case for more
> careful consideration of these issues (Dominique or Ali perhaps). Or,
> a document on trust and where that comes from and plays with
> architecture (Melinda or Ted/Martin perhaps). A vulnerability
> analysis (Robin, perhaps). And I don’t mean to say we should avoid
> competing documents, those are very welcome at this point as well.
> But it is still worthwhile to think about the different aspects that
> one might want to write about, and focus a particular piece on a
> chosen angle.
> 
> Jari
>