Method of modification of authorization details for a biometrics authentication device, biometrics authentication method, and biometrics authentication device

摘要

A biometrics authentication device utilizes biometrics information and performs individual authentication enables secure modification of authorization details for an authorized agent other than the principal. A verification device verifies biometrics information registered on an IC card against biometrics information detected by a detection unit. When results in satisfactory biometrics authentication, modification of authorization details of an authorized agent, registered on the IC card, is permitted. Authorization details for an authorized agent can be securely modified on a card on which biometrics information for the principal and the authorized agent is registered.

主权项

1. A biometrics authentication method, comprising:
a step of reading biometrics characteristics data from an IC (Integrated Circuit) card that registers biometrics characteristics data of a principal and an authorized agent other than the principal, a principal management data, which stores link information with the biometrics characteristic data of the principal and data of transaction items of the principal, and an agent management data that stores link information with the biometrics characteristic data of the agent and data of authorized transaction items of the authorized agent, which is selected within all transaction items by the principal, by an IC card reader/writer; a step of detecting biometrics characteristic data from a body by a detection unit; a first verification step of verifying the detected biometrics characteristic data against the read biometrics characteristic data of the principal and of the authorized agent registered in advance in the IC card by a control unit; a step, when the verification is successful, of permitting modification of data of said authorized transaction items of the authorized agent by an operation unit which inputs the transaction items for withdrawal transaction and selects modification type and modification data; a step of registering modified data of said authorized transaction items of the authorized agent in the IC card through the IC card reader/writer by controlling by the control unit; a second verification step of verifying the detected biometrics characteristic data against the read biometrics characteristic data of the principal and of the authorized agent in the IC card by the control unit; and a step of executing a transaction within the authorized transaction items in the agent management data when the second verification result for the authorized agent is satisfactory; wherein the permitting step comprises: a step of judging whether a successful verification is for the principal or for the agent from the principal management data and the agent management data in the IC card when the verification is successful in the first verification; a step, when judging that the verification for the authorized agent is successful, of displaying said authorized transaction items of the agent management data which are read from the IC card on a display unit of the operation unit and controlling an input for modifying data of said authorized transaction items from the operation unit to restrict the modification range of the data of said authorized transaction items within said authorized transaction items of the agent management data-of the verified agent which have been displayed; a step of modifying the data of said authorized transaction items within said authorized transaction items which have been displayed from the operation unit by the verified agent; a step, when judging that the verification for the principal is successful, of displaying selection menu of modification and deletion of the authorized agent on the display of said operation unit; a step of controlling an input for modifying the data of said authorized transaction items of the authorized agent from the operation unit to restrict within said all transaction items of the principal management data which was read from the IC card when selecting the modification.