| 摘要 |
[PROBLEMS] To appropriately authenticate a user, a biometric device, and an authentication timing of a client side and prevent leak or tampering of the biometric information. [MEANS FOR SOLVING PROBLEMS] A server device includes: a unit for encrypting information for requesting biometric authentication and identifying the request by using a public key of the biometric authentication device and transmitting the information; and a unit for authenticating the user according to the authentication information containing the result of the biometric authentication. The biometric authentication device includes: a unit for inputting biometric information; a unit for storing a template as biometric information registered in advance together with the user information; a unit for collating the biometric information inputted by the user with the template; a unit for adding a digital signature to the authentication information containing the collation result, information for identifying the request from the server device, and the template user information, by using a secret key of the local device and transmitting the authentication information to the server device.
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