G07C2209/06

MANAGEMENT SERVER, MANAGEMENT SYSTEM, DELETION METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM STORING DELETION PROGRAM

When receiving a deletion request specifying a registered shareable key, a management server executes a deletion process that deletes the shareable key of a target shareable device, which is specified in the received deletion request, and a shareable key that has been registered to a different shareable device based on a request from the target shareable device.