Study of Biometric Authentication Systems and Their Security

A biometric system is fundamentally a pattern recognition system that recognizes a person by determining the authentication by using his different biological features i. e. Fingerprint, retina-scan, iris scan, hand geometry, and face recognition are leading physiological biometrics and behavioral characteristic are Voice recognition, keystroke-scan, and signature-scan. Biometrics is a growing technology, which has been widely used in forensics, secured access and prison security. This paper deals with the design of a biometric security system based upon the fingerprint and speech technology. In this paper different biometrics techniques such as Iris scan, retina scan and face recognition techniques are discussed. We would like to outline our opinions about the usability of biometric authentication systems. We outline the position of biometrics in the current field of computer security.