Template security for fingerprint recognition system with two variables polynomial of fuzzy vault for minutiae points

Abstract

Minutiae points are the most commonly used as well as accurate feature extraction method of fingerprint recognition system. Using biometrics for person identification is a growing field in many areas, which requires storage of database called template. Biometric system is vulnerable to attack. To reduce this drawback, cryptosystem is combined with biometric. Most common cryptosystem for fingerprint recognition system is fuzzy vault. In this work, two variable polynomial is used to conceal minutiae points, and only encoding is used to decide match/non match result. It gives same result as method which uses encoding and decoding of templates. It reduces computational complexity.