An efficiently enhanced authenticated key exchange protocol for terminal to server environment

摘要

A typical Two-Party Authenticated Key Exchange Protocol aims to provide the information confidentiality between client and server in public network. The protocol has to satisfy some secure properties and possess the lower computational cost. The new protocol in this paper enhances the scheme of Chou, which has some flaws, such as the impersonation attack and public key problem. The enhanced scheme can resolve the problems by using the Elliptic Curve Cryptosystem to achieve an efficient program to distribute private key. Then the security analysis and performance evaluation were performed between our enhanced scheme and some other related works. The results show that the computational cost of our scheme is less than the others while satisfying the security requirement.