Information processing device and authentication method

An information processing device performing authentication by biometrics information comprising:

• a first nonvolatile storage unit which stores encrypted biometrics information,
• a second nonvolatile storage unit which stores an encryption key of the biometrics information,
• a volatile storage unit used by a program of the information processing device,
• a decryption unit which decrypts the biometrics information by the encryption key of the biometrics information and recording it in the volatile storage unit, and
• an authentication unit which compares the biometrics information decrypted by the volatile storage unit and the biometrics information acquired by a biometrics device, thereby performing authentication.

An authentication method of an information processing device comprising an authentication device, the method comprising steps of:

• recording a user identifier and user authentication information for an authentication code in a nonvolatile storage unit which can be security-locked,
• releasing the access-lock of the nonvolatile storage unit by the inputted authentication code,
• acquiring user authentication information from the nonvolatile storage unit, and
• performing authentication by using the user authentication information and user authentication information which has been inputted.