Re: [OAUTH-WG] OAuth Discovery

Vladimir Dzhuvinov <> Thu, 26 November 2015 14:31 UTC

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From: Vladimir Dzhuvinov <>
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Subject: Re: [OAUTH-WG] OAuth Discovery
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Good work, Mike, John, Nat!

I see that the introspection and revocation endpoints are included now
(they've been missing in OpenID discovery).

Regarding client authentication, would it make sense to let
token_endpoint_auth_methods_supported apply to the introspection and
revocation endpoints as well?

      OPTIONAL.  JSON array containing a list of client authentication
      methods supported by this token endpoint.  Client authentication
      method values are used in the "token_endpoint_auth_method"
      parameter defined in Section 2 of [RFC7591] <>.  If omitted, the
      default is "client_secret_basic" -- the HTTP Basic Authentication
      Scheme specified in Section 2.3.1
<> of OAuth 2.0 [RFC6749 <>].


On 26.11.2015 01:37, Mike Jones wrote:
> I'm pleased to announce that Nat Sakimura, John Bradley, and I have created an OAuth 2.0 Discovery specification.  This fills a hole in the current OAuth specification set that is necessary to achieve interoperability.  Indeed, the Interoperability section of OAuth 2.0 <> states:
> In addition, this specification leaves a few required components partially or fully undefined (e.g., client registration, authorization server capabilities, endpoint discovery).  Without these components, clients must be manually and specifically configured against a specific authorization server and resource server in order to interoperate.
> This framework was designed with the clear expectation that future work will define prescriptive profiles and extensions necessary to achieve full web-scale interoperability.
> This specification enables discovery of both endpoint locations and authorization server capabilities.
> This specification is based upon the already widely deployed OpenID Connect Discovery 1.0<> specification and is compatible with it, by design.  The OAuth Discovery spec removes the portions of OpenID Connect Discovery that are OpenID specific and adds metadata values for Revocation and Introspection endpoints.  It also maps OpenID concepts, such as OpenID Provider, Relying Party, End-User, and Issuer to their OAuth underpinnings, respectively Authorization Server, Client, Resource Owner, and the newly introduced Configuration Information Location.  Some identifiers with names that appear to be OpenID specific were retained for compatibility purposes; despite the reuse of these identifiers that appear to be OpenID specific, their usage in this specification is actually referring to general OAuth 2.0 features that are not specific to OpenID Connect.
> The specification is available at:
> *
> An HTML-formatted version is also available at:
> *
>                                                                 -- Mike
> P.S.  This note was also posted at and as @selfissued<>.
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