CPC H04L 63/0892 (2013.01) | 20 Claims |
1. A computer-implemented method comprising:
receiving, at an authorization entity and from a client device, a communication of an access request for the client device to access a service provided by a service provider, the communication including a call-back address associated with the service provider;
communicating the request to an intermediary service to determine whether the client device has authorization to access the service provided by the service provider;
receiving confirmation from the intermediary service that the client device has authorization to access the service provided by the service provider;
in response to receiving the confirmation, communicating the authorization to the client device;
signing a message that includes the call-back address; and
sending the message that includes the call-back address to the intermediary service for use in an instance where a change in the authorization occurs, such that use of the call-back address for the change in the authorization is trusted by the service provider.
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