共享密钥与位运算的移动RFID认证协议  

MOBILE RFID AUTHENTICATION PROTOCOL BASED ON SHARED PRIVATE KEY AND BITWISE OPERATION

作　　者：梅松青[1] 邓小茹[1] Mei Songqing;Deng Xiaoru(Guangzhou Medical University,Guangzhou 510006,Guangdong,China)

机构地区：[1]广州医科大学,广东广州510006

出　　处：《计算机应用与软件》2020年第7期302-308,323,共8页Computer Applications and Software

基　　金：广东省教育厅“2017年广东高校重点平台及科研项目”特色创新类项目(自然科学)(2017KTSCX156)。

摘　　要：移动RFID系统中,可移动读写器与后台数据库之间是通过无线方式进行通信,该信道不安全可靠,传统的RFID认证协议并不能适用于移动RFID系统中。为解决该问题,提出一种基于共享密钥与按位运算的超轻量级的移动无线射频识别双向认证协议MAP(Mutual Authentication Protocol)。MAP基于按位运算机制,采用超轻量级的位替换运算对传输信息进行加密,利用随机数保持传输信息及共享密钥的新鲜性。一次通信过程中标签、读写器、后台数据库三方之间进行认证以此来抵抗攻击者的蓄意破坏。安全性分析表明,MAP能够实现共享密钥动态更新及抵抗去同步化等攻击。通过GNY逻辑对MAP进行形式化数学推理,性能分析表明,MAP具有较低的计算量,适用于低成本的移动RFID系统中。In the mobile RFID system,the mobile reader and the background database communicate by wireless way.The channel is not secure and reliable,and the traditional RFID authentication protocol cannot be applied to the mobile RFID system.In order to solve the above problem,we propose an ultra-lightweight mutual authentication protocol(MAP)of mobile RFID based on shared key and bit operation.Based on the bitwise operation mechanism,MAP adopted ultra-lightweight bit replacement operation to encrypt the transmission information,and used random numbers to maintain the freshness of the transmission of information and shared key.During a communication process,the tag,the reader and the background database were authenticated to resist the sabotage of the attacker.The security analysis shows that MAP can achieve dynamic update of the shared key and resist attacks such as desynchronization.The formal mathematical reasoning of MAP is carried out by GNY logic.The performance analysis indicates that MAP has a lower computational complexity,and it is suitable for low-cost mobile RFID systems.

关 键 词：物联网 无线射频 共享密钥 位替换运算 双向认证 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]