新的超轻RFID互认证协议:使用递归散列的SASI  

A New Ultra-light Weight RFID Mutual Authentication Protocol:SASI Using Recursive Hash

作　　者：付惠茹 张厚武[1] 何勇[1] 汤攀[1] FU Hui-ru;ZHANG Hou-wu;HE Yong;TANG Pan(College of Computerscience and Technology,Guizhou University,Guiyang,Guizhou 550025,China)

机构地区：[1]贵州大学计算机科学与技术学院,贵州贵阳550025

出　　处：《计算技术与自动化》2018年第1期152-156,共5页Computing Technology and Automation

摘　　要：由于RFID使用无线信道与其相关设备进行通信,应该有一些最佳的加密方法来保护来自攻击者的通信数据。之前提出的超轻量级相互认证协议(UMAP),以成本有效的方式保护RFID系统。针对大多数UMAP的安全漏洞,提出一个改进的UMAP,使用递归散列函数提供强认证和强完整性(SASI)。所提出的协议在其设计中仅包含简单的逻辑运算符XOR,Rot和非三角函数(递归散列),降低了对标签计算能力和存储能力的要求。分析结果表明,该协议可以有效地抵抗去同步攻击、重传攻击和可追溯性攻击,适用于较低成本的RFID系统。Since RFID uses a wireless channel to communicate with its associated devices,there should be some best encryption method to protect the communication data from the attacker.The previously proposed ultra-lightweight mutual authentication protocol(UMAP)protects RFID systems in a cost-effective manner.For most UMAP security vulnerabilities,an improved UMAP is proposed that uses a recursive hash function to provide strong authentication and strong integrity(SASI).The proposed protocol contains only simple logical operators XOR,Rot,and non-trigonometric functions(recursive hashes)in its design,reducing the computational power and storage capacity of the tags.The analysis results show that the protocol can effectively resist desynchronzation attack,replay attack and traceability attack,suitable for much lower-cost RFID system.

关 键 词：超轻量级 相互认证协议 无线射频识别 递归散列 强认证性和强完整性 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]