A fingerprint and threshold scheme-based key generation method

The biometric cryptographic system can provide the organic integration of biometric features and the traditional cryptology. The application of biometric keys can not only hide the information of users´ biometric features, but also securely realize secret key production, recovery and certification. This paper proposes a new scheme of cryptographic key generation method based on fingerprint features and the (t,n)- threshold scheme. Our method can not only protect the user´s key but can also effectively prevent the legitimate user´s biometric features revealed. Our experiment results show that the key generation and recovery are efficient, and our proposed algorithm can achieve the anticipated results.