Biometrics Security using Steganography

A biometric system is at risk to a variety of attacks. These attacks are intended to either avoid the security afforded by the system or to put off the normal functioning of the system. Various risks have been discovered while using biometric system. Proper use of cryptography greatly reduces the risks in biometric systems as the hackers have to find both secret key and template. It is notified that still fraudrant goes on to some extent. Here in this paper a new idea is presented to make system more secure by use of steganography. Here the secret key (which is in the form of pixel intensities) will be merged in the picture itself while encoding, and at decoding end only the authentic user will be allowed to decode.