On Fri, Mar 29, 2024 at 10:46 PM Michael Jones <michael_b_jo...@hotmail.com>
wrote:

> Thanks again for the detailed review, Atul!  I’ve updated the PR
> accordingly.  Responses are inline below…
>
>
>
> *From:* OAuth <oauth-boun...@ietf.org> *On Behalf Of *Atul Tulshibagwale
> *Sent:* Friday, March 29, 2024 6:31 PM
> *To:* Rifaat Shekh-Yusef <rifaat.s.i...@gmail.com>; oauth <oauth@ietf.org>
> *Subject:* Re: [OAUTH-WG] WGLC for OAuth 2.0 Protected Resource Metadata
>
>
>
>    6. Section 5.1: Does this introduce any IANA consideration? How would
>    we know if some other spec is not using "resource_metadata" in some other
>    way in the WWW-Authenticate response header? (Unlikely, but if there is a
>    way to reserve it, we should)
>
> The IANA registrations will occur once the spec has completed WGLC and
> publication is requested.  That said, I’m not aware of a registry for
> WWW-Authenticate values.  (If anyone is aware of such a registry, please
> let me know and I’ll add a registration.)
>

To my knowledge (having looked into it some during working on RFCs 9449 &
9470) there's no registry for WWW-Authenticate auth-param values. You could
potentially somewhat follow what Step Up did in
https://www.rfc-editor.org/rfc/rfc9470.html#section-3 which was to say that
the auth-param value being introduced is applicable only to OAuth related
authentication schemes.

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