Robust smart‐cards‐based user authentication scheme with user anonymity
Shuhua Wu, Yuefei Zhu, Qiong Pu · Security and Communication Networks · 2011
Abstract In this paper, we mainly investigate anonymous user authentication scheme using smart card. We first demonstrate security weaknesses still exist in two such schemes recently propose by Wanget al. and Tsaiet al., respectively according to Wanget al.'s criteria. Thereafter, we propose an enhanced smart‐card‐based authentication scheme with user anonymity for providing all the admired requirements at the same time. Compared with the previous schemes, our scheme is yet efficient both in computation and communication cost. Moreover, we can prove the security of the proposed scheme in the random oracle model. Copyright © 2011 John Wiley & Sons, Ltd.