Making Biometric System more secure with Liveness Detection

Traditional user authentication/verification systems mostly rely on knowledge; like password or smart card. But they are not able to meet strict security performance of today’s computer applications. That’s why now biometrics-based authentication systems are good alternate to these traditional authentication methods. Biometric system works on the principle of recognizing individuals on the basis of their physical and behavioral characteristics. As biometric data cannot be lost or forgotten so biometric system is more reliable and userfriendly. However this widespread acceptance of biometrics technology also attracting the attention of attackers. Attackers for cracking biometric system security trying to use the artificial biometric trait, which are made up of silicon, gelatin etc. These synthetic biometric has same characteristics as of original biometric trait. So now biometric system required more secure system which able to differentiate between real and fake biometric. It can be done by liveness detection techniques. In this paper we are discussing some techniques for liveness detection for various biometric systems. Keyword: Liveness detection, fingerprint, iris.