基于伪随机函数的RFID系统双向认证协议

移动RFID系统中，读写器与后台数据库之间不再通过有线方式通信，而采用无线方式通信，但也存在一定的安全隐患问题。为确保通信数据的安全，提出一种基于伪随机函数的移动RFID双向认证协议。协议确保标签、读写器、后台数据库三方均进行认证，从而保障通信的安全性；采用字合成等位运算，在一定程度上能够减少总的计算量；三方认证，使得移动RFID系统具备更为广泛的运用价值。安全性及性能分析表明，所提协议具有较高的安全性及较低的成本。

A bidirectional authentication protocol for mobile RFID system based on PRF

In mobile RFID system,the reader and the database no longer communicate through the wired way,but communicate wirelessly,so there are also some potential safety issues.In order to ensure the safety of communication data,a mobile RFID bidirectional authentication protocol based on pseudo-random function was proposed.The protocol ensured the tripartite entities:the tag,the reader and the database,was authenticated each other,and thereby ensured the security of communication.The use of word synthesis operation to a certain extent,could be used to reduce the total amount of computation.The mobile RFID systems have more extensive using value by tripartite authentication; security analysis and performance analysis show that the proposed protocol has higher security and lower costs.