A Novel Approach for Non-Invertible Cryptographic Key Generation from Cancellable Fingerprint Template

Generation of cancellable cryptographic key from cancellable fingerprint template is an encryption technique used to authenticate confidential systems. This method gives us the advantage that we can regenerate the key from same finger print even if the key is compromised from a different template generated by a different random algorithm. This method can be employed in banking and financial applications, defense sector and other confidential matters.We implemented Pre-processing block as given in literature and developed proficient algorithms for ridge filling after edge detection block. This slightly improves the efficiency of the system over the existing algorithms. We implemented efficient algorithm for false minutiae and multiple minutiae removal. By removing the false features, we can reduce the rate of false identification and from increased efficiency we can reduce the rate of false rejection. Even the efficiency is better compared to the older algorithms, the result still depends on the quality of the acquisition devices. If we use a poor acquisition device, that may lead to either false identification of false rejection.