基于射频指纹的射频识别认证协议改进

Improvement of RFID Authentication Protocol Based on RF Fingerprints

通过研究对融合物理层硬件信息与应用层协议的射频指纹(Radio Frequency Fingerprints,RFF)进行射频识别(Radio Frequency Identification,RFID)认证问题,发现射频指纹RFID认证协议中存在的安全缺陷,对其进行改进.改进协议在融合RFID标签射频指纹的基础上进行挑战与应答,并进行RFID标签检测、存储与声称射频指纹的比对.性能分析与BAN逻辑形式化证明的结果表明,改进协议克服了原有缺陷,具有对抗有关RFID标签克隆攻击的能力,实现了RFID系统的高强度认证.

In this paper, RF fingerprint authentication of RFID devices fused of the physical-layer hardware information and application-layer protocols was studied, a security defect was discovered in the RF fingerprint authentication protocol of RFID devices, and one kind of improvement of the protocol was then done. The improved protocol realizes the challenge and response on the basis of merging the RF fingerprints of RFID tag and does the comparison of the detected, stored, and claimed RF fingerprint of one RFID tag. The performance analyses and formal proof based on BAN logic demonstrate that the improved protocol conquers the original defect, has the capacity to resist the attacks related to the clone of RFID tags and obtains the high intensity authentication of RFID systems.