一种基于时间戳的移动RFID认证协议

An Authentication Protocol of Mobile RFID Based on Timestape

针对一些无线射频识别RFID协议易受到重放攻击,设计一种基于时间戳的移动RFID认证协议,认证过程中,阅读器带上时间戳常量,有效地避免一些动态RFID协议中存在的阅读器重放和冒充攻击问题.本文采用伪随机数和共享密钥机制,提出一种轻量级的移动RFID认证协议,实现阅读器、服务器和标签的双向认证,分析表明,给出的协议能有效地抵御各种攻击,具有较高的执行效率.

Some Radio Frequency IDentification(RFID)protocols are vulnerable to replay attacks,this paperpresents a RFID protocol based on timestamp. During the authentication,the reader takes the timestamp con-stant,which effectively avoids the problem of replay and impersonation attack in some mobile RFID proto-cols. Based on the pseudo random number and shared key mechanism,the paper proposes a lightweight mo-bile RFID authentication protocol,it implements the mutual authentication among the tags,readers,and serv-er. Analysis shows that proposed protocol can effectively resist various attacks,has relatively high executionefficiency compared with the other protocols.