| 摘要 |
PROBLEM TO BE SOLVED: To access a service providing device via a relay device in which authority information necessary for access to the service providing device is not registered.SOLUTION: A relay device 30B performs, when receiving an access request from a client device 20C, an acquisition request for a token to a relay device 30A. The relay device 30B requests, when receiving the token from the relay device 30A, the update of the received token to the relay device 30A if the expiration date satisfies a predetermined condition. The relay device 30A requests the update of the token to the service providing device 10. |
