结合Hash函数和密钥阵列的RFID安全认证协议

无线传输、信号广播、资源受限等特点使无线射频识别(RFID)技术存在潜在的安全隐患。在分析目前常见的RFID认证协议基础上，提出一种结合单向Hash函数和密钥阵列的安全认证协议。新协议在认证过程中使用单向Hash函数值代替标签标识符ID，并为每一对阅读器和标签之间设计独立的认证密钥，在抵抗包括窃听、位置跟踪、重传攻击、拒绝服务和篡改等多种攻击的基础上，进一步增强了标签信息的私密性，对抵御来自系统内部的威胁具有明显的优势。

RFID authentication protocol based on Hash function and key array

Wireless transmission, broadcast of signals, resource-constraint disturb the reliability of Radio Frequency Identification (RFID) system and block the deployment progress of RFID techniques. Through the analysis of current common RFID authentication protocol, an authentication protocol based on Hash function and key array was proposed. The new protocol used one-way Hash function value instead of label identifier, and designed independent authentication key for each pair between the reader and the tag in the certification process. It could resist several possible attacks, including eavesdropping, location tracking, re-transmission attacks, Denial of Service (DoS), tampering and other attacks. It has obvious advantages in enhancing the tag identity privacy, and resisting the threat from within the system.