Comprehensive Study of Biometric Authentication Systems, Challenges and Future Trends

Authentication is the key parameter to speak the truth of an attribute claimed by the real entity. There are several ways to make authentication more robust and biometrics is one among them. From past decade, Biometric technology is widely adopted and accepted everywhere to authenticate an individual's identity. Also the adopted technology overcomes the limitations faced by the traditional authentication process such as knowledge based issues including password and token for the authentication of an individual. This paper makes a comprehensive study of the existing biometric methodologies, their usage and limitations that are employed in real time cases. It also presents the motivation for adapting biometrics in current situations. In addition to this, it also makes an attempt to talk on the technical and security related issues towards biometric systems.