BIOMETRIC AUTHENTICATION SYSTEM AND METHOD THEREFOR

摘要

In the client, a feature quantity extraction unit extracts a feature quantity from biometric information of a user. A feature quantity conversion unit converts the feature quantity by a one-time parameter. In the first server, a parameter DB stores a parameter in association with the ID. A data generation unit generates data based on the parameter corresponding to the ID transmitted from the client. In the second server, a template DB stores a template to which the feature quantity of the biometric information of the user is converted by the parameter, in association with the ID. A template conversion unit generates a one-time template by converting the template corresponding to the ID transmitted from the first server. Then, a match determination unit compares the converted feature quantity transmitted from the client or the data transmitted from the first server with the one-time template to determine whether they match or not.