一种Gen2v2标准下的高效隐私保护认证协议

EPC Class-1 Generation-2 Version-2（Gen2v2）标准不仅继承了原有标准的通信距离长和读取率高的优点，而且提出了一个全新的安全架构以提高系统的安全性。目前，Gen2v2标准安全架构下的安全认证协议设计已经成为该领域的研究热点之一。该文在分析现有符合Gen2v2标准的安全认证协议的基础上，提出了一种新的符合Gen2v2标准的高效隐私保护认证协议。该协议不仅具有数据机密性、标签匿名性和前向安全性，而且能够抵御假冒攻击、位置追踪攻击、嗅探攻击、重放攻击和去同步攻击。与现有协议相比，该协议具有较小的通信和时间开销，更加适合大规模的部署。

An Effective Privacy Preserving Authentication Protocol for Gen2v2 Standard

EPC Class-1 Generation-2 Version-2 (Gen2v2 for short) not only inherits the advantages of the original standard in terms of long reading range and large reading volume, but proposes a new security framework to enhance the security of radio frequency identification (RFID) system. Nowadays, the authentication protocol designed under the security framework has emerged as a hot topic. Based on the analysis of the existing Gen2v2-compliant authentication protocols, a new effective privacy preserving authentication protocol for Gen2v2 standard is proposed. The protocol is able not only to provide data confidentiality, anonymity and forward security, but also to withstand the tag impersonation attack, tracking attack, sniffing attack, replay attack and desynchronization attack. Compared with the existing works, the protocol has a lower communication and time overhead, and is more suitable for large-scale deployment.