Especially in light of the possibility of signed requests along the lines of 
https://tools.ietf.org/html/draft-ietf-oauth-jwsreq-16, I believe that all the 
ACE OAuth parameters should be registered as CWT claims.  I'll repeat my 
request, wearing my designated expert hat, that application-specific values not 
be requested for registration in the one-byte ranges.  The one-byte values 
should be saved for claims that are likely to span multiple kinds of 
applications.

                                -- Mike

-----Original Message-----
From: Ace <[email protected]> On Behalf Of Ludwig Seitz
Sent: Monday, August 27, 2018 11:44 PM
To: Samuel Erdtman <[email protected]>; Jim Schaad <[email protected]>
Cc: [email protected]
Subject: Re: [Ace] Parameter abbreviation number ranges for 
draft-ietf-ace-oauth-authz

On 2018-08-27 18:39, Samuel Erdtman wrote:
> +1 on pushing up error_description and error_uri
> 
> I think client_id might be worth keeping low since it is often used 
> even when in combination with client_secret. See OAuth Mtls as an example.
> On Mon, 27 Aug 2018 at 18:20, Jim Schaad <[email protected] 
> <mailto:[email protected]>> wrote:
> 

Note that the 1 byte range is 0-23

Currently in the 1 byte uint range we have 20-23 left unused

We could start assigning negative integer values in the 1 byte range if needed.


/Ludwig

-- 
Ludwig Seitz, PhD
Security Lab, RISE SICS
Phone +46(0)70-349 92 51

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