Iris Biometric Cryptosystems

Abstract

Biometric cryptosystems are designed to securely bind a digital key to a biometric or generate a digital key from a biometric [69]. The majority of biometric cryptosystems require the storage of biometric-dependent public information applied to retrieve or generate keys which is referred to as helper data [228]. Due to biometric variance it is not feasible for most biometric characteristics to extract cryptographic keys directly.