4. IANA Considerations

4. IANA Considerations

This specification registers an error value in the "OAuth Extensions Error Registry" and establishes the "OAuth Token Type Hints" registry.

4.1. OAuth Extensions Error Registration

This specification registers the following error value in the "OAuth Extensions Error Registry" defined in [RFC6749].

4.1.1. The "unsupported_token_type" Error Value

Error name: : unsupported_token_type

Error Usage Location: : Revocation endpoint error response

Related Protocol Extension: : Token Revocation Endpoint

Change controller: : IETF

Specification document(s): : [RFC7009]

4.1.2. OAuth Token Type Hints Registry

This specification establishes the "OAuth Token Type Hints" registry. Possible values of the parameter "token_type_hint" (see Section 2.1) are registered with a Specification Required ([RFC5226]) after a two-week review period on the [email protected] mailing list, on the advice of one or more Designated Experts. However, to allow for the allocation of values prior to publication, the Designated Expert(s) may approve registration once they are satisfied that such a specification will be published. Registration requests must be sent to the [email protected] mailing list for review and comment, with an appropriate subject (e.g., "Request for parameter: example"). Within the review period, the Designated Expert(s) will either approve or deny the registration request, communicating this decision to the review list and IANA. Denials should include an explanation and, if applicable, suggestions as to how to make the request successful. IANA must only accept registry updates from the Designated Expert(s) and should direct all requests for registration to the review mailing list.

4.1.2.1. Registration Template

Hint Value: : The additional value, which can be used to indicate a certain token type to the authorization server.

Change controller: : For Standards Track RFCs, state "IETF". For others, give the name of the responsible party. Other details (e.g., postal address, email address, and home page URI) may also be included.

Specification document(s): : Reference to the document(s) that specifies the type, preferably including a URI that can be used to retrieve a copy of the document(s). An indication of the relevant sections may also be included but is not required.

4.1.2.2. Initial Registry Contents

The OAuth Token Type Hint registry's initial contents are as follows.

Hint Value	Change Controller	Reference
access_token	IETF	[RFC7009]
refresh_token	IETF	[RFC7009]

Table 1: OAuth Token Type Hints initial registry contents