US Patent 9774581 Identity management with local functionality

A user equipment (UE) may perform functions locally, such as on a trusted module that resides within the UE. For example, a UE may perform functions associated with a single sign-on protocol, such as OpenID Connect for example, via a local identity provider function. For example, a UE may generate identity tokens and access tokens that can be used by a service provider to retrieve user information, such as identity information and/or user attributes. User attributes may be retrieved via a user information endpoint that may reside locally on the UE or on a network entity. A service provider may grant a user access to a service based on the information that it retrieves using the tokens.