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Re: [Rats] EAT Profiles

Laurence Lundblade <lgl@island-resort.com> Fri, 16 September 2022 16:14 UTC

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From: Laurence Lundblade <lgl@island-resort.com>
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Date: Fri, 16 Sep 2022 09:14:43 -0700
Cc: Michael Richardson <mcr+ietf@sandelman.ca>, "rats@ietf.org" <rats@ietf.org>
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To: Hannes Tschofenig <Hannes.Tschofenig@arm.com>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/rats/D6lgU65PNfPJwu2aQPdK9wDTuec>
Subject: Re: [Rats] EAT Profiles
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> On Sep 16, 2022, at 8:38 AM, Hannes Tschofenig <Hannes.Tschofenig@arm.com> wrote:
> 
> Hi Michael, Hi Laurence,
> 
> I am curious why it matters whether an EAT is a CWT (or not).

EAT makes normative reference to CWT and JWT. If EAT didn’t it would have to replicate text from them, for example the section on creating and validating CWT/JWT.

EAT shares the CWT/JWT registries rather than creating new ones.

It seemed better than striking out on our own with something new. Mike Jones agreed.

It makes it more likely that a library implementation will be able to support both to reduce object code on a device occasionally.

LL

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