| 摘要 |
In a biometric information registration phase, an authentication server previously obtains user information and biometric information, and registers them in a user information management part and a biometric information registration part. An authentication software transmission part associates the authentication software in an authentication software management part with the biometric information so that the software is uniquely specified, and sends it to a user terminal of interest. Thus, the user terminal, the authentication software, and the biometric information are uniquely associated with each other. In a user authentication phase, biometric information sent from the user terminal 3 using the authentication software is compared with the registered biometric information to conduct user authentication.
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