Re: [Lake] Call for adoption of draft-selander-lake-traces

John Mattsson <john.mattsson@ericsson.com> Mon, 25 October 2021 19:08 UTC

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From: John Mattsson <john.mattsson@ericsson.com>
To: Marco Tiloca <marco.tiloca=40ri.se@dmarc.ietf.org>, =?windows-1257?Q?Mali=F0a_Vu=E8ini=E3?= <malisa.vucinic@inria.fr>, "lake@ietf.org" <lake@ietf.org>
Thread-Topic: [Lake] Call for adoption of draft-selander-lake-traces
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Archived-At: <https://mailarchive.ietf.org/arch/msg/lake/93CH2XTZ3WuGX8qojfnZeJSebYI>
Subject: Re: [Lake] Call for adoption of draft-selander-lake-traces
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Hi,

- I support adoption.

- I think it should be published as an RFC

- Regarding the scope. I think the scope should be narrow. My view is that the goal with the traces document is to increase understanding compared to the undocumented test vectors in https://github.com/lake-wg/edhoc/tree/master/test-vectors-11
Any additional test vectors can be provided in an undocumented JSON format. I agree with earlier comments that an ECDSA cipher suite should definitly be included. I think the ECDSA cipher suite should replace one of the current EdDSA traces. I don't really see that a third trace increases understanding very much, but I do not have a strong opinion. My suggestion would be two traces
     1. method 3 (static DH - static DH) with cipher suite 0
     2. method 0 (signature - signature) with cipher suite 2 or 3

Cheers,
John

From: Lake <lake-bounces@ietf.org> on behalf of Marco Tiloca <marco.tiloca=40ri.se@dmarc.ietf.org>
Date: Thursday, 21 October 2021 at 15:38
To: Mališa Vučinić <malisa.vucinic@inria.fr>fr>, lake@ietf.org <lake@ietf.org>
Subject: Re: [Lake] Call for adoption of draft-selander-lake-traces
Hi all,

I support adoption of this document, that I have personally found useful
through the implementation/testing process.

I believe that publication as RFC is appropriate too. This would be
analogous to RFC8448.

The current level of details in the traces looks actually good to me. I
think additional traces should include cipher suite 2 (both with
authentication method 0 and 3). This would make the document useful also
for implementations supporting only cipher suite 2, which is admitted
for constrained endpoints.

Best,
/Marco

On 2021-10-18 12:52, Mališa Vučinić wrote:
> Dear all,
>
> As discussed during the IETF-111 meeting and the last interim, this email triggers a 2-week call for adoption of draft-selander-lake-traces-01. The draft contains the EDHOC test vectors, previously part of draft-ietf-lake-edhoc.
>
> We are seeking the working group input on the following points:
> - Whether draft-selander-lake-traces should be adopted as a working group item, and if yes:
> - Whether this draft should be published as an RFC
> - What should be the scope of the document? The current version of the draft covers authentication methods 0 (signature - signature) and 3 (static DH - static DH). Should the draft cover additional methods and / or additional intermediary values? Anything else deemed useful from the implementers point of view?
>
> Please provide your comments by November 1st, 2021.
>
> Mališa and Stephen

--
Marco Tiloca
Ph.D., Senior Researcher

Division: Digital System
Department: Computer Science
Unit: Cybersecurity

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