The available security mechanisms for the low-cost Radio Frequency Identification (RFID) systems are either defective or high-cost. Therefore, this paper proposed an efficient security authentication protocol for low-cost RFID system based on Physical Unclonable Function (PUF) and Linear Feedback Shift Register ( LFSR). The protocol provides strong security and can resist physical attack and tag clone with strong privacy.%已提出的针对低成本RFID系统的安全机制,要么存在安全缺陷,要么硬件成本太高.为此设计了一个基于物理不可克隆功能(PUF)的RFID安全认证协议,利用PUF和线性反馈移位寄存器(LFSR)实现了阅读器和标签之间强的安全认证,解决了已有安全协议存在的问题.安全性分析表明:该协议成本低、安全性高,能够抵抗物理攻击和标签克隆,并有极强的隐私性.
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