Patent ID: 11971973
Assignee: BITKEY INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 6:
7. A use permit issuing device for issuing use permits including use conditions for using respective usage target objects, comprising:
an authentication data storage means that stores, for each user, multiple types of authentication data together with authentication methods of the authentication data in question, in association with at least one type of identification information;
a key information storage means that stores, for each of the usage target objects, key information including a secret key used for signing the use permit concerned;
a use permit issuing means that, on receiving a use permit issue request including user's identification information, designation of a usage target object, specifying information that can identify an authentication method employed by a use permit notification device corresponding to the usage target object, and use conditions for using the usage target object, issues a use permit including the use conditions included in the use permit issue request;
a signature generation means that generates a signature on the use permit issued by the use permit issuing means, by using the secret key included in the key information stored in the key information storage means in association with the usage target object designated in the use permit issue request;
an authentication data identification means that identifies the authentication data of the authentication method identified by the specifying information included in the use permit issue request, among the authentication data stored in the authentication data storage means in association with the user's identification information included in the use permit issue request; and
a setting information sending means that sends setting information including the use permit issued by the use permit issuing means, the signature generated by the signature generation means, and the authentication data identified by the authentication data identification means to a sender of the use permit issue request.