Biometric authentication device, biometric information authentication method

Abstract

Biometric authentication device, biometric information authentication method. A biometric authentication device has high security by preventing intra-device information from being falsified and stolen by a third party. A biometric authentication device includes a biometric information storage module, a biometric information authenticating module for individual authentication, a mutual authentication module with the terminal, a registration counter corresponding to the mutual authentication, an authentication counter corresponding to the biometric authentication, a stoppage flag set when the value of the counter is larger than a predetermined value, and authentication control module for preventing the module from operating depending on the stoppage flag.

Description

technical field [0001] The invention relates to a biometric authentication device, which utilizes human biometric information to authenticate individuals. Background technique [0002] Currently, there is a method of using a password PIN (Personal Identification Number) stored in a magnetic card, IC card, etc. as a method of authenticating a designated individual when withdrawing money from a bank account, purchasing goods, and entering / exiting a factory. However, with this personal authentication method, if the card and password are stolen, a third party can easily break in. [0003] Thereby produced such situation, in recent years, along with the increase of internal memory capacity of IC card, it has been proposed to utilize personal biometric information, such as fingerprint, iris, retina, blood vessel image and voice print (voiceprint) to come authentication personal approach. [0004] As a method of authenticating an individual using biometric information, a method o...

AI Technical Summary

Problems solved by technology

[0005] However, even personal authentication methods based on biometric information are problematic in terms of security

Access to the data in the IC card requires the use of the IC card terminal, and the authentication program in the terminal is easily changed, so the personal registration data registered in the IC card may be tampered with and stolen by such a malicious program

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