BIOMETRIC REGISTRATION/AUTHENTICATION SYSTEM, BIOMETRIC REGISTRATION/AUTHENTICATION DEVICE, AND BIOMETRIC REGISTRATION/AUTHENTICATION METHOD

摘要

Provided are a biometric registration/authentication system, a biometric registration/authentication device, and a biometric registration/authentication method, with which the risk of impersonation by another person can be adequately reduced. In this biometric registration/authentication system a terminal with which user biometric information is registered and a host computer that stores the registered biometric information are connected via a network. The terminal is equipped with: a sensor that picks up user biometric information; an input unit that accepts inputs of supplemental information for the purpose of identifying characteristics of the user; a display unit that displays a determination result indicating whether the user's biometric information can be registered; and a terminal control unit that transmits the biometric information and the supplemental information to the host computer or receives the determination result from the host computer and displays this result on the display unit. The host computer is equipped with: a storage unit that stores biometric information and supplemental information for each user of the biometric registration/authentication system; and a host control unit that receives the biometric information and the supplemental information from the terminal, determines whether the user is registered on the basis of the similarity between the biometric information and supplemental information stored in the storage unit and the received biometric information and supplemental information, and transmits to the terminal the result thereof, as a determination result.