International Journal of Modern Engineering Research (IJMER)
Biometrics is the study of automatically recognizing humans by means of inherently unique physical or behavioral characteristics. The human physical characteristics like fingerprints, face, hand geometry, voice, signature, palm and iris are known as biometrics. These features are used to provide an authentication for computer based security systems. The existing computer security systems used at various places like banking, passport, credit cards, smart cards, PIN, access control and network security are using username and passwords for person identification. Biometric systems also introduce an aspect of user convenience.