Brian, indeed this was done to align with the existing JWK Thumbprint URI.

Why do you feel this is incorrect?

Here is the JWK example:

urn:ietf:params:oauth:jwk-thumbprint:NzbLsX...

In an ideal world, I think names for keys should be shorter... and not
protocol specific.

Something like:

urn:jkt:Nzb....

urn:ckt:Nzb....

But that's not the way these parameters have been registered historically.

OS

On Mon, Oct 7, 2024, 5:34 PM Brian Campbell <bcampbell=
[email protected]> wrote:

> I realize this comes quite late, sorry, probably too late for any action.
> I find myself here due mostly to a tangentially related discussion in a
> different standards-related organization.
>
> But can anyone explain the justification for the use of the OAuth URI
> registry here? I realize the registry exists so it was probably a
> convenient thing to do to carve out a URN sub-namespace. And I know that,
> for better or worse, the JWK Thumbprint URI uses "urn:oauth:params:" so
> this was likely just following what was done there. But the use of
> "urn:oauth:params:" for a COSE Key Thumbprint URI really doesn't seem quite
> right.
>
> On Thu, Apr 4, 2024 at 9:04 AM Tschofenig, Hannes <hannes.tschofenig=
> [email protected]> wrote:
>
>> Hi David,
>>
>> I hope it is OK for me to do the expert review given that I am also an
>> author of the specification.
>>
>> I checked the text in the IANA registry of the draft against the body of
>> the document and the request to add a new entry to the OAuth URI registry
>> for the URN: urn:ietf:params:oauth:ckt is correct.
>>
>> Ciao
>> Hannes
>>
>> PS: Could you remove the Arm email address from the IANA system?
>>
>> -----Original Message-----
>> From: COSE <[email protected]> On Behalf Of David Dong via RT
>> Sent: Wednesday, 13 March 2024 20:38
>> Cc: [email protected]; [email protected]
>> Subject: [COSE] [IANA #1361034] expert review for
>> draft-ietf-cose-key-thumbprint (oauth-parameters)
>>
>> Dear Hannes Tschofenig (cc: cose WG),
>>
>> As the designated expert for the OAuth URI registry, can you review the
>> proposed registration in draft-ietf-cose-key-thumbprint-04 for us? Please
>> see
>>
>> https://datatracker.ietf.org/doc/draft-ietf-cose-key-thumbprint/
>>
>> The due date is March 27th, 2024.
>>
>> If this is OK, when the IESG approves the document for publication, we'll
>> make the registration at:
>>
>> https://www.iana.org/assignments/oauth-parameters/
>>
>> With thanks,
>>
>> David Dong
>> IANA Services Sr. Specialist
>>
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>>
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