The existing OAuth 2.0 Authorization Server 
Metadata<https://tools.ietf.org/html/draft-ietf-oauth-discovery> specification 
has now been joined by a related OAuth 2.0 Protected Resource 
Metadata<https://tools.ietf.org/html/draft-jones-oauth-resource-metadata> 
specification.  This means that JSON metadata formats are now defined for all 
the OAuth 2.0 parties: clients, authorization servers, and protected resources.

The most significant addition to the OAuth 2.0 Authorization Server Metadata 
specification is enabling signed metadata, represented as claims in a JSON Web 
Token (JWT).  This is analogous to the role that the Software Statement plays 
in OAuth Dynamic Client Registration.  Signed metadata can also be used for 
protected resource metadata.

For use cases in which the set of protected resources used with an 
authorization server are enumerable, the authorization server metadata 
specification now defines the "protected_resources" metadata value to list 
them.  Likewise, the protected resource metadata specification defines an 
"authorization_servers" metadata value to list the authorization servers that 
can be used with a protected resource, for use cases in which those are 
enumerable.

The specifications are available at:

*       http://tools.ietf.org/html/draft-ietf-oauth-discovery-04

*       http://tools.ietf.org/html/draft-jones-oauth-resource-metadata-00

HTML-formatted versions are also available at:

*       http://self-issued.info/docs/draft-ietf-oauth-discovery-04.html

*       http://self-issued.info/docs/draft-jones-oauth-resource-metadata-00.html

                                                       -- Mike

P.S.  This notice was also posted at http://self-issued.info/?p=1591 and as 
@selfissued<https://twitter.com/selfissued>.
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