Combining Biometric Features of Iris and Retina for Better Security Cryptography

The requirement for dependable user authentication methods has increased in the wake of discriminating worries about security and fast developments in networking, communication and mobility. The majority of authentication systems of present control access to computer systems or secured locations with the help of passwords, but it are not highly durable to attacks because it can be easily broken or stolen. Thus, biometrics has now turned out to be a feasible replacement to conventional identification techniques in several application fields. Biometrics which is indicated as the science of recognizing an individual according to their physiological or behavioral traits is evolving to gain recognition as a legitimate technique for identifying an individual‟s identity. Biometric technique have proved importance in a range of security, access control and monitoring applications. The technologies are still new and rapidly evolving; this also leads to the cracking of even the biometrics system. Therefore, a new technique must be developed to overcome those difficulties. A new technique called multimodal biometrics can be used to satisfy those requirements because it is very difficulty for the attackers to identify more than one biometrics. In this technique, the features are extracted from different biometrics and then they are combined using a technique called Fusion. From this fused features, cryptographic key id generated which is used as a key for authenticating the system. This paper combines the features of Iris and Retina. The experimental result suggests that the combination of Iris and Retina results in better security than the other combination of biometrics.