A Proposal of Efficient Remote Biometric Authentication Protocol

ZeroBio has been proposed for a secure biometric authentication over the network by conducting secret computing between prover and verifier. The existing ZeroBio are based on zero-knowledge proof that a committed number lies in an interval, or on oblivious neural network evaluation. The purpose of ZeroBio is to give verifier a mean to authenticate provers with perfectly concealing provers'biometric information from verifier. However, these methods need high computational complexity and heavy network traffic. In this paper, we propose another type of ZeroBio protocol that can accomplish remote biometric authentication with lower computational complexity and lighter network traffic by tolerating small decline of security level.