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计算机工程 ›› 2012, Vol. 38 ›› Issue (14): 5-7. doi: 10.3969/j.issn.1000-3428.2012.14.002

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轻量级无线射频识别认证协议的改进

金永明 1a,2,辛 伟 1a,2,孙惠平 1b,陈 钟 1a,2   

  1. (1. 北京大学 a. 信息科学技术学院网络与信息安全实验室;b. 软件与微电子学院,北京 100871; 2. 教育部高可信软件技术重点实验室,北京 100871)
  • 收稿日期:2011-11-08 出版日期:2012-07-20 发布日期:2012-07-20
  • 作者简介:金永明(1979-),男,博士研究生,主研方向:数字签名,认证协议,隐私保护技术;辛 伟,博士研究生;孙惠平,讲师;陈 钟,教授、博士、博士生导师
  • 基金资助:

    国家自然科学基金资助项目(61170263)

Improvement of Lightweight RFID Authentication Protocol

JIN Yong-ming 1a,2, XIN Wei 1a,2, SUN Hui-ping 1b, CHEN Zhong 1a,2   

  1. (1a. Network & Information Security Laboratory, School of Electronics Engineering and Computer Science; 1b. School of Software and Microelectronics, Peking University, Beijing 100871, China; 2. Key Laboratory of High Confidence Software Technologies of Ministry of Education, Beijing 100871, China)
  • Received:2011-11-08 Online:2012-07-20 Published:2012-07-20

摘要:

Kardas等人提出的轻量级无线射频识别(RFID)认证协议(2011年LightSec会议论文集)若遭遇侧信道分析、物理刺探等攻击会导致密钥泄漏,从而使整个协议认证失败。为此,通过将四步认证改为三步认证、引入密钥恢复机制以及改进密钥的使用方式,使协议效率提高,并且便于在多标签环境中扩展。理论分析结果表明,新协议可以防止读写器与标签之间产生异步,抵抗伪造攻击、重放攻击、消息阻塞攻击、中间人攻击,与原方案相比,认证效率更高。

关键词: 认证协议, 轻量级, 无线射频识别, 物理防克隆函数, 线性反馈移位寄存器

Abstract:

Kulseng et al’s lightweight Radio Frequency Identification(RFID) authentication protocol has secret loophole that it may cause key leakage if the protocol is attacked by side channel analysis, which leads authentication failure. This paper modifies four-step authentication to three-step authentication, introduces key recovery mechanism and improves usage of key, so that the protocol has higher efficiency, and it is convenient to expend in multi-tag environment. Theory analysis result shows that the new protocol can prevent various attacks, and it is more efficient compared with the original protocol.

Key words: authentication protocol, lightweight, Radio Frequency Identification(RFID), Physical Unclonable Function(PUF), Linear Feedback Shift Register(LFSR)

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