一种改进的RFID认证协议分析

Analysis of An Improved RFID Authentication Protocol

RFID系统的无线传输特性使其在通信过程中易遭受外界的攻击和窃取,为此人们采取了诸如物理方法和认证加密方法来增强系统的安全性,而认证加密方法由于其设计简便得到了人们的青睐。本文针对常用的基于Hash函数的认证协议存在的安全漏洞进行分析,在此基础上提出一种改进的协议。通过将改进的协议与常用的协议在安全性、数据存储状况和算法复杂度方面进行对比,证明改进的认证协议对RFID系统的整体性能,尤其是安全性方面有很好的改善。

The wireless transmission characteristics of RFID system is vulnerable to be attacked and theft within communication,to people adopt the physical methods and authentication encryption methods to enhance system security,authentication encryption methods is more useful due to its simple design.In this paper,we analysis of security vulnerabilities exist in the commonly used authentication protocol based on Hash function,on this basis bring forward a modified protocol.Through compare them in security,data storage condition and complexity of the algorithm,it can prove that the improved protocol has a very good improvement for RFID system＇s overall performance,particularly in security.