Design of a hybrid approach using a revocable technique and steganographic text color coding technique for fingerprint template protection

The most crucial matter to be taken care of while deploying biometric systems is the security of the biometric template. Several algorithms that do not store the original template have been formulated in recent years to protect biometric templates from various attacks. Most of the existing algorithms offer a trade-off between matching performance and biometric template security. Moreover, it is believed that no single template protection scheme is capable of satisfying security, diversity, revocability and performance at the same time. Present research work proposes a two-step hybrid template protection scheme, where first step is the creation of a transformed template from the original template, and the second step is conceal the value of transformed template by applying the text steganography.The effectiveness of the proposed method is well established by thorough experimental analysis, which illustrates that the recognition performance is well maintained as the original template executes.