Biometric authentication device, biometric authentication system, biometric authentication method, and recording medium

摘要

A biometric authentication device includes a processor to execute an operation including: obtaining biometric information from a user; creating verification characteristic data from the biometric information; verifying registered characteristic data registered in a storage device with the verification characteristic data and determining whether the user is a true user; permitting execution of re-authentications up to a predetermined number of times when the user is determined to not be the true user; managing the verification characteristic data by storing the verification characteristic data in an existing group or by creating a new group and storing the verification characteristic data therein, when the user is determined to not be the true user; determining whether the user is a false user based on the number of groups; and limiting the execution of re-authentications by the user when the user is determined to be the false user.

主权项

1. A biometric authentication device comprising:
a memory, and a processor to execute an operation by executing a program stored in the memory, the operation including:
obtaining biometric information from a user;creating verification characteristic data from the biometric information;determining whether the verification characteristic data is identified with registration data obtained by the true user;storing the verification characteristic data, when it is determined that the verification characteristic data is not identified with the registration data;limiting an execution of re-authentications by the user, when a number of different types of a plurality of verification characteristic data stored by the storing exceeds an upper limit; andpermitting the execution of re-authentications up to a predetermined number of times, when the number of different types of verification characteristic data does not exceed the upper limit.