| Abstract: | In the post-quantum era, the password-based authentication key exchange (PAKE) protocol on lattice has the
characteristics of convenience and high efficiency, however these protocols cannot resist online dictionary attack thatis a common method used by attackers. A lattice-based two-factor ( biometric and password) authentication keyexchange (TFAKE) protocol based on key consensus (KC) is proposed. The protocol encapsulates the hash valueof biometric information and password through a splittable encryption method, and compares the decapsulatedinformation with the server's stored value to achieve the dual identity authentication. Then the protocol utilizes theasymmetric hash structure to simplify the calculation steps, which increases the calculation efficiency. Moreover,KC algorithm is employed in reducing data transmission overhead. Compared with the current PAKE protocol, theproposed protocol has the characteristics of hybrid authentication and resisting online dictionary attack. And itreduces the number of communication rounds and improves the efficiency and the security of protocol application. |
