Individual authentication method, individual authentication device, and program for same

摘要

An individual authentication device (6), which verifies individual data on a storage device (5) against input individual data and performs individual authentication, is enabled to make a smooth transition to biometric authentication. The device judges whether a biometrics unit is installed, and by judging whether the biometrics unit (1) is installed, selects between individual authentication by the biometrics unit (1) and individual authentication by verifying individual data of the storage device (5) against input individual data. An individual authentication device upon which biometric authentication functions are not implemented can thus make a smooth transition to biometric authentication.