Author(s)

Masafumi Takeda^1*, Kazuya Nakano², Hiroyuki Suzuki³, Masahiro Yamaguchi⁴

¹Graduate School of Science & Engineering, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Japan.
²Nippon Sport Science University, 1221-1 Kamoshida-cho, Aoba-ku, Yokohama, Japan.
³Imaging Science & Engineering Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Japan.
⁴Global Scientific Information and Computing Center, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, Japan.

We propose a novel biometric sensing technique for personal authentication in which fingerprint images are captured using an optical encryption method. This method can reduce the risk of data theft or leakage of personal information captured by biometric sensing. This method, termed encrypted sensing, is implemented using digital holography with double random phase encoding. We demonstrate experimentally that a fingerprint image can be captured as an optically encrypted image and can be restored correctly only when the correct cipher key is used. Moreover, we investigate experimentally the verification accuracy of the decrypted images.

Biometric Authentication, Digital Holography, Double Random Phase Encoding, Fingerprinting

Takeda, M. , Nakano, K. , Suzuki, H. and Yamaguchi, M. (2015) Encrypted Sensing Based on Digital Holography for Fingerprint Images. Optics and Photonics Journal, 5, 6-14. doi: 10.4236/opj.2015.51002.