Re: [Rats] draft-birkholz-rats-uccs

Thomas Fossati <tho.ietf@gmail.com> Mon, 15 March 2021 10:16 UTC

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From: Thomas Fossati <tho.ietf@gmail.com>
Date: Mon, 15 Mar 2021 10:16:01 +0000
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To: Carsten Bormann <cabo@tzi.org>
Cc: Laurence Lundblade <lgl@island-resort.com>, Hannes Tschofenig <Hannes.Tschofenig@arm.com>, "rats@ietf.org" <rats@ietf.org>, Giridhar Mandyam <mandyam@qti.qualcomm.com>
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Subject: Re: [Rats] draft-birkholz-rats-uccs
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Hi Carsten

On Mon, Mar 15, 2021 at 9:31 AM Carsten Bormann <cabo@tzi.org> wrote:
>
> On 2021-03-13, at 21:32, Thomas Fossati <tho.ietf@gmail.com> wrote:
> >
> > I see this in a slightly different way: we take a data format that has
> > a "secure by default" label on it and we strip off the very thing that
> > makes it secure.  Since we are changing its commonly understood
> > semantics, it's probably wise that we simultaneously state why and
> > when this is acceptable, along with the assumed threat model.
>
> Well, we are defining a new thing, called
>
>         Unprotected CWT Claims Set (UCCS)
>
> What part of “unprotected” do you think will be hard to understand?

The oxymoron between "Unprotected" and the COSE in "CWT" has the
potential of creating cognitive dissonance.

That IMHO deserves some discussion *in* the document.

cheers!