A biometric crypto-system for authentication

Abstract

One of the main challenges of the Crypto-systems in practice is the maintenance of the confidentiality of the cryptographic key. A technique of hybridization between the biometrics and the cryptography has been proposed for the authentication. This last rests on two methods: the Fuzzy commitment [1] and the Fuzzy vault [2]. However no work to our knowledge approached the problem of display in clear of the abscissas corresponding to the true minutiae in the vault. To palliate this problem, we propose an approach based on the storage of the true minutiae but under encoded shape, giving birth to a new approach that uses the advantages of ‘Fuzzy commitment’ to fill the weaknesses of 'Fuzzy Vault'.