US 11,695,769 B2
Dynamic user authorization with a service provider
Sape Jurrien Mullender, Amsterdam (NL); Hendrikus G. P. Bosch, Aalsmeer (NL); Alessandro Duminuco, Milan (IT); Ahmed Bakry Helmy Ahmed, Enschede (NL); and Aaron T. Woland, Waxhaw, NC (US)
Assigned to Cisco Technology, Inc., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Aug. 10, 2020, as Appl. No. 16/989,234.
Prior Publication US 2022/0046018 A1, Feb. 10, 2022
Int. Cl. H04L 29/06 (2006.01); H04L 9/40 (2022.01)
CPC H04L 63/0892 (2013.01) 20 Claims
OG exemplary drawing
 
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.