A Novel Biometric Authentication Scheme with Privacy Preserving

In this paper, a novel biometric authentication scheme is proposed, which combines zero-knowledge proof, Σ - protocols and bit commitment scheme. The remote server compares biometric template using committed values, this can keep privacy of user's biometrics. To the best knowledge of us, this is the first scheme which uses Σ - protocols as a basic tool to implement biometric authentication. Compared with the previous schemes, this scheme has advantages as higher security, lower computation complexity and privacy keeping of biometric template.