Key Binding Based on Biometric Shielding Functions

The tremendous evolution in networking, communication and mobility creates greater security assurance demand than can be provided by simple security measures, such as requiring passwords to gain access to a system. Biometric technologies are being used increasingly as an effective means. The combination of biometrics and cryptography is promising although there are some issues to be addressed. The key issue of the biometric encryption is how to deal with the contradiction about the veracity of cryptography and the simulation of biometric. The shielding function is a potential tool to solve this problem. In this paper, we shall review and analyze the classic biometrics-based cryptographic key management. And then, we construct a new fingerprint-based key binding scheme by using the shielding function and the WFMT method.