To provide a remote authentication system and a remote authentication method which are highly reliable in security, and can surely authenticate an indivisual by means of biometrics information being the individual information of a user while protecting the biometrics information.
Since the biometrics information being the individual information of the user is ciphered and the biometrics information is transferred on a network 2 in a state decipherable only by an authentication server 3 specified by the user, the privacy of the user which is the biometrics information is surely protected in the form of reflecting the intention of the user. Also, since the date and time of preparing authentication information are confirmed in the authentication server 3, the illegal reuse of the authentication information is prevented. Further, since whether or not the authentication is performed by the authentication server 3 is confirmed on an authentication request side, thus this system is maintained high in security.
BABA YOSHIMASA
SADAKANE TETSUO
FUJII TERUKO
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