| 摘要 |
PROBLEM TO BE SOLVED: To provide a user authentication system high in security and capable of obtaining the result speedily and to provide a user certificate and a user authentication device to be used for the system. SOLUTION: Biological feature data such as choreography or voiceprint for distinguishing the individual of a user 8 are acquired, a user certificate 7 recording at least one part of these biological feature data is issued and by comparing the recorded contents of the user certificate 7 read by a certificate reader 41 with the biological feature data of the user inputted to a certification acquiring device, the user is directly certified at a certification utilizing spot 4. Besides, high-order certification stations 2 and 3 are provided, all the biological information of the user is not recorded on the user certificate 7 but the remaining part is recorded for each certification station and by additionally performing the certification while comparing the parts of the recorded biological feature data in response to the reference at the authentication utilization spot 4, the reliability of authentication can be improved. |
