You're living in a different part of the world, apparently.  Most of the specs 
that I use utilize the term "thumbprint", including ones such as 
http://msdn.microsoft.com/en-us/library/windows/desktop/aa376544(v=vs.85).aspx.

                                                            -- Mike

From: Richard Barnes [mailto:[email protected]]
Sent: Thursday, April 10, 2014 8:31 PM
To: Mike Jones
Cc: [email protected]
Subject: Re: [jose] JSON Web Key (JWK) Thumbprint Specification

Dear lord, can we just say "fingerprint" like the rest of the universe?

On Thu, Apr 10, 2014 at 8:49 PM, Mike Jones 
<[email protected]<mailto:[email protected]>> wrote:
I created a new simple spec that defines a way to create a thumbprint of an 
arbitrary key, based upon its JWK representation.  The abstract of the spec is:

This specification defines a means of computing a thumbprint value (a.k.a. 
digest) of JSON Web Key (JWK) objects analogous to the x5t (X.509 Certificate 
SHA-1 Thumbprint) value defined for X.509 certificate objects. This 
specification also registers the new JSON Web Signature (JWS) and JSON Web 
Encryption (JWE) Header Parameters and the new JSON Web Key (JWK) member name 
jkt (JWK SHA-256 Thumbprint) for holding these values.

The desire for this came up in an OpenID Connect context, but it's of general 
applicability, so I decided to submit the spec to the JOSE working group.  
Thanks to James Manger, John Bradley, and Nat Sakimura for the discussions that 
led up to this spec.

The specification is available at:

*        http://tools.ietf.org/html/draft-jones-jose-jwk-thumbprint-00

An HTML formatted version is also available at:

*        https://self-issued.info/docs/draft-jones-jose-jwk-thumbprint-00.html

                                                            -- Mike

P.S.  I also posted this notice at http://self-issued.info/?p=1213 and as 
@selfissued.


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