Patent ID: 11971973

Abstract:
The present invention reduces security risks while improving the convenience of utilization control technology of an usage target object. A use permit issuance device (1): stores, for each user, authentication data and an authentication method in association with identification information of one or more users and upon receipt of a use permit issuance request from a setting terminal (5), issues a use permit to generate a signature, and identifies the authentication data associated with the user identification information and the authentication method included in the issuance request, and notifies the setting terminal (5) of setting information including the use permit, the signature and the authentication data. The setting terminal (5) registers the setting information in a use permit notification device (4). The use permit notification device (4) acquires authentication data from a user, and transmits the use permit and the signature of the setting information including the authentication data to a utilization control device (3). The utilization control device (3) verifies the signature, and if the signature verification is established, unlocks use restrictions of a usage target object when a use condition included in the use permit being satisfied.