[core] New Version Notification for draft-amsuess-core-edhoc-grease-00

Christian Amsüss <christian@amsuess.com> Mon, 27 March 2023 09:31 UTC

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Date: Mon, 27 Mar 2023 11:30:50 +0200
From: Christian Amsüss <christian@amsuess.com>
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Subject: [core] New Version Notification for draft-amsuess-core-edhoc-grease-00
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Hello LAKE,
(hello CoRE: This effectively only updates the recipient list, please
reply to this rather than the original)

On Mon, Mar 27, 2023 at 04:53:24AM +0200, Christian Amsüss wrote:
> I'm bringing this to CoRE because LAKE is a deliberately narrow WG
> tasked with producing EDHOC alone, and I expect that its maintenance of
> EDHOC will be handled here.

Thanks to Marco's pointer at the LAKE rechartering, I'm also posting
this to LAKE:

I've written up a proposed extension to EDHOC that should help ensure
that its extension points remain usable, based on similar work that has
been done for TLS.

> Status:         https://datatracker.ietf.org/doc/draft-amsuess-core-edhoc-grease/
> Html:           https://www.ietf.org/archive/id/draft-amsuess-core-edhoc-grease-00.html
> Abstract:
>    This document applies the extensibility mechanism GREASE (Generate
>    Random Extensions And Sustain Extensibility), which was pioneered for
>    TLS, to the EDHOC ecosystem.  It reserves a set of non-critical EAD
>    labels and unusable cipher suites that may be included in messages to
>    ensure peers correctly handle unknown values.

Note that there is no need for constrained endpoints to do anything
about these -- my expectation is that their unconstrained peers would
have enough information to decide whether applying some GREASE is
practical for a given exchange, and that should suffice to keep the
network as a whole well lubricated.

Best regards

To use raw power is to make yourself infinitely vulnerable to greater powers.
  -- Bene Gesserit axiom