This is the approach supported by the current draft.  Thanks again for your 
review comments.

                                                            -- Mike

From: OAuth [mailto:[email protected]] On Behalf Of Nat Sakimura
Sent: Monday, March 23, 2015 12:11 AM
To: Brian Campbell
Cc: oauth
Subject: Re: [OAUTH-WG] proof-of-possession-02 cnf via key thumbprint?

Would not kid do?
Right, thumbprint has more semantics and has nice properties, but having too 
many ways is not good for interop.

Nat

2015-03-23 15:40 GMT+09:00 Brian Campbell 
<[email protected]<mailto:[email protected]>>:
Do folks in the WG think there'd be utility in having a way to identity the 
finger/thumbprint of a key in the cnf claim. A presenter might, for example, 
present the JWT along with a public JWK and some proof-of-possession of that 
JWK.  And the JWK would be bound to the JWT via the thumbprint, which is more 
space efficient (with respect to the JWT anyway) than the full JWK.


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--
Nat Sakimura (=nat)
Chairman, OpenID Foundation
http://nat.sakimura.org/
@_nat_en
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