Re: [Lake] Call for adoption for draft-selander-lake-edhoc - respond by June 22

Christopher Wood <> Sun, 21 June 2020 23:52 UTC

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Date: Sun, 21 Jun 2020 16:51:38 -0700
From: "Christopher Wood" <>
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Subject: Re: [Lake] =?utf-8?q?Call_for_adoption_for_draft-selander-lake-edhoc?= =?utf-8?q?_-_respond_by_June_22?=
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I do not support adoption.

The charter of this WG states:

   draft-selander-ace-cose-ecdhe is a candidate
   starting point for the LAKE produced by the WG. Any work available from
   TLS or other WGs that satisfies the determined requirements will also be
   evaluated for suitability, but does not preclude the WG from freely
   selecting its preferred LAKE for OSCORE.

Unless I missed it, work from TLS was not seriously evaluated for suitability.
In fact, it seems we jumped right over it and landed on draft-selander-ace-cose-ecdhe.
The cTLS authors demonstrated that this variant of the protocol can indeed meet
the requirements set out in draft-ietf-lake-reqs-04, without compromising any of
the benefits that the TLS ecosystem brings to the table. (Support for different
server authentication modes, for example, is something TLS is well equipped to support.)

I understand that the TLS WG adopted cTLS and will continue its development there.
However, that does not seem relevant for what this WG chooses. By analogy, this would
be similar to QUIC developing its own key exchange protocol since UDP is just slightly
different from TCP. Clearly, that was not the path chosen, and I think it would be a 
mistake to do that here without seriously considering cTLS. 


On Sun, Jun 21, 2020, at 1:13 PM, Jesus Sanchez-Gomez wrote:
> Hello All,
> I support the adoption of this document.
> I've worked with the technology in research projects/papers yielding 
> good results.
> There are several use cases where this technology is a good solution for 
> different research projects at the University of Murcia and Odin Solutions.
> While I've practical experience with this technology working 
> specifically in LoRaWAN, its design makes it a good fit for any 
> constrained radio link/LPWAN.
> Also, it has potential to be implemented beyond LPWANs, like more 
> generic IoT scenarios with large scalability.
> Best Regards,
> -- 
> Jesús Sánchez Gómez
> Contratado predoctoral // Phd Student. Fundación Séneca. Comunidad 
> Autónoma de la Región de Murcia
> +34 868 88 96 74
> +34 635 33 26 09
> Department of Information and Communication Engineering
> Faculty of Computer Science
> University of Murcia
> 30100 Murcia, Spain
> -- 
> Lake mailing list