I see.

So, you are saying, this will be a “using EDHOC in COSE” specification, still 
normative, but referenced from EDHOC as informative as EDHOC works without COSE.

Yes, it is always hard to position a “using X in Y” draft between the X and Y 
working groups — after all, the two ends of this draft need to fit X and Y, 
respectively.  If the EDHOC specification truly doesn’t need the contents of 
this specification, then I can see moving them into a COSE document.  But I 
think it is as expedient to keep them together in one document.  The only 
strong reason to split the document would be to avoid a long wait while COSE is 
deciding on some controversial content of the extracted spec.  Do we foresee 
such a delay?

Grüße, Carsten


> On 2021-08-24, at 09:35, Göran Selander 
> <[email protected]> wrote:
> 
> Combining the responses from Carsten and Michael, and including COSE.
> 
>> On 2021-08-23, 19:17, "Michael Richardson" <[email protected]> wrote:
>> 
>>   Göran Selander wrote:
>>> * The key identifier ‘kid’ is extended to also support CBOR ints,
>>> making ‘kid2’ introduced in -08 redundant. This change was based on
>>> feedback from the COSE WG [1]. One potential next step is to move all
>>> COSE-related IANA registrations from this draft to a separate COSE
>>> draft and make an informative reference.
>> 
>>> [1] https://mailarchive.ietf.org/arch/msg/cose/qGngdte4s3SEZEKM-xBEoXYUgKc/
>> 
>>   I understanding splitting the document so that it is easier to update,
>>   but I think that the reference should be normative.
>> 
>>   I think we want to publish the documents together.
> 
> 
> > On 2021-08-23, 21:42, "Carsten Bormann" <[email protected]> wrote:
>> 
>>> One potential next step is to move all COSE-related IANA registrations from 
>>> this draft
>> to a separate COSE draft and make an informative reference.
>> 
>>   Why?
>> 
> 
> 
> The registrations in question are in section 8.5 -  8.7 of 
> draft-ietf-lake-edhoc-09: The extension of 'kid' to int (both as a reference 
> and in the referenced object) and the registration of 'cwt' to signify that 
> the value is a CWT or UCCS.
> 
> A few reasons have been mentioned for moving this from EDHOC to a COSE draft, 
> I don't know what is most relevant, if anything:
> 
> * In case of 'kid', these registrations would make EDHOC an update of 
> draft-ietf-cose-rfc8152bis-struct (RFC-to-be 9052). I don't know if LAKE or 
> COSE wants that. 
> 
> * These registrations are independent of the base EDHOC protocol, but enables 
> the use of CWT and UCCS as credentials, and more compact identification of 
> credentials. Therefore they could instead be referenced from EDHOC. I don't 
> see why the reference needs to be normative.
> 
> * These registrations belong to the COSE domain and may gain better awareness 
> and reviews if put into a COSE draft.
> 
> 
> Göran
> 
> 
> 
> 
> 
> 
> 
> 
> -- 
> Lake mailing list
> [email protected]
> https://www.ietf.org/mailman/listinfo/lake

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