• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

Computer Engineering & Science

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An improved identity authentication scheme
 of dynamic ID multi-factor remote users

CAO Shouqi,SUN Qing,CAO Liling   

  1. (College of Engineering Science and Technology,Shanghai Ocean University,Shanghai 201306,China)
  • Received:2018-04-23 Revised:2018-09-06 Online:2019-04-25 Published:2019-04-25

Abstract:

A remote user authentication scheme based on dynamic ID can achieve mutual authentication between remote users and the server under the premise of ensuring anonymity and untraceability of remote user identity. We analyze the security of Yang’s remote user authentication scheme based on dynamic ID, and point out that Yang’s scheme cannot resist replay attack, sever masquerade attack, user masquerade attack or provide mutual authentication. Aiming at the defects of Yang’s scheme, we propose a multifactor remote user authentication scheme and analyze its security and efficiency. The analysis results show that the improved scheme can overcome the shortcomings of Yang’s scheme and has higher security performance

Key words: dynamic ID, identity authentication, smart card, password, Hash function