WCSE

A Dynamic Identity Mutual Authentication Scheme Based on Smart Card

Abstract— In 2013, Chang YF et al. proposed an untraceable dynamic-identity-based remote user authentication scheme. This scheme can achieve mutual authentication and a verification table is no needed. Then, Li X et al. demonstrated that Chang YF et al.’s scheme suffers from offline password guessing attack and stolen smart card attack, and it is inefficient in wrong password verification. In this paper, an enhanced scheme is presented for improving the security. It protects the private key x of the server by the discrete logarithm and resists attacks by calculating the user IDi and the random number. Moreover, the password change phase is more efficient.

Index Terms— authentication, security, smart card, password.

Dengya Wan, Daren Zha
Institute of Information Engineering, Chinese Academy of Sciences, CHINA
School of Cyber Security, University of Chinese Academy of Sciences, CHINA
Lei Wang
Institute of Information Engineering, Chinese Academy of Sciences, CHINA

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Cite: Dengya Wan, Lei Wang, Daren Zha, "A Dynamic Identity Mutual Authentication Scheme Based on Smart Card," Proceedings of 2018 the 8th International Workshop on Computer Science and Engineering, pp. 605-609, Bangkok, 28-30 June, 2018.