IC card access control method for biometrics authentication, biometrics authentication method, and biometrics authentication device

摘要

A biometrics authentication device uses biometrics information to perform individual authentication, and securely registers biometrics information for an authorized agent other than the principal. Within an IC card, registered biometrics information of a principal is verified against biometrics information detected by a detection unit, and when biometrics authentication of the principal is satisfactory, access is permitted to modify data for an authorized agent in the IC card, so that biometrics information for the authorized agent can be securely modified in a card in which is registered biometrics information for the principal. Similarly, illicit modification access of a card in which is registered biometrics information of the principal by a person impersonating an authorized agent can be prevented.