Additional OAuth Parameters for Authorization in Constrained Environments (ACE)
Lüdwig Seitz · 2020
This specification defines new parameters for the OAuth 2.0 token and introspection endpoints when used with the framework for authentication and authorization for constrained environments (ACE). These are used to express the proof-of-possession key the client whishes to use, the proof-of-possession key that the AS has selected, and the key the RS should use to authenticate to the client.