A Survey of Cancelable Biometric Based Key Generation Scheme using various Cryptography Techniques

Abstract

Key management in cryptosystem has more security concerns. In traditional cryptosystem key is generated randomly and very difficult to remember. The keys generated from biometric features provide better option than traditional cryptographic key management techniques such as password based key generations. Cancelable biometric is a customized technique in biometric based cryptography, where Cancelable Biometric refers to the intentional and systematically repeatable distortion of biometric features in order to protect sensitive user-specific data. This paper presents the survey conducted for same of the cancelable biometric key generation techniques. K = K + temp //interpret as 1 end if temp = temp * 2 end for return K After applying algorithm 1 and 2 mentioned above both sender and receiver can independently generate 128 bit key.Subhas et al. proposed an option to revoke cryptographic key. If the key is compromised by the attacker, he is not able to know about the fingerprint data from the key. If the biometric data becomes compromised by a third party, he is not able to generate the same key from the fingerprint. This approach involves mainly three subsections, namely, Feature extraction, template generation and key generation [8].