Patent ID: 7725733

Claim:
A biometrics authentication device for verifying a detected biometrics characteristics data against a registered biometrics characteristic data, comprising: an image capture device, which captures an image of a living body part, scrambles by scramble/descramble method in which an original data is restored by descrambling scrambled original data and transmits an image data of the captured image; an IC card reader/writer, which reads and writes an IC card storing comparatively coarse first biometrics characteristic data and comparatively fine second biometrics characteristic data of a user, said IC card storing said first characteristics data in a scrambled state and said second characteristics data in a non-scrambled state; and a control unit separately provided with said IC card reader/writer, which descrambles said scrambled image data from the image capture device by said scramble/descramble method, receives scrambled first biometrics characteristic data from said IC card, descramble said scrambled first biometrics characteristic data, performs primary verification of said image data with said first biometrics characteristic data, creates final verification data from said image data when the primary verification is success, and scrambles by said scramble/descramble method and transmits to said IC card said final verification data, and wherein said IC card descrambles said scrambled final verification data by said scramble/descramble method, and performs secondary verification with said stored second biometrics characteristic data, and wherein said image capture device comprises a unit to capture images of blood vessels of a living body of said user, and wherein said first biometrics characteristic data is comparatively coarse characteristic data of said blood vessel image of said user, and said second biometrics characteristic data is comparatively fine characteristic data of said blood vessel image of same said user.