RCID: Fingerprinting Passive RFID Tags via Wideband Backscatter
RCID: Fingerprinting Passive RFID Tags via Wideband Backscatter
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DOI：
10.1109/infocom48880.2022.9796663
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发表时间：
2022-05
期刊：
影响因子：
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通讯作者：
Jiawei Li;Ang Li;Dianqi Han;Yan Zhang;Tao Li;Yanchao Zhang
中科院分区：
文献类型：
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作者：
Jiawei Li;Ang Li;Dianqi Han;Yan Zhang;Tao Li;Yanchao Zhang
标签克隆和欺骗给RFID应用带来了巨大的挑战。本文介绍了RCID的设计和评估，一种新的系统，指纹RFID标签的基础上，每个标签电路的独特的反射系数。基于一种新颖的基于OFDM的指纹采集器，我们的系统可以快速获取和验证每个标签的RCID指纹，这是独立的RFID阅读器和测量环境。我们的系统适用于COTS RFID标签和阅读器后，在阅读器的固件更新。在600个标签上进行的大量原型实验表明，RCID具有很高的安全性，认证准确率高达97.15%，认证错误率中位数为1.49%。RCID也是高度可用的，因为它只需要大约8秒来注册一个标签和2毫秒来验证一个RCID指纹与一个完全连接的多类神经网络。最后，实证研究表明，在20 MHz的带宽上，RCID指纹的熵约为202位，而先前的最佳结果为17位，从而为RFID克隆和欺骗提供了强大的理论弹性。
Tag cloning and spoofing pose great challenges to RFID applications. This paper presents the design and evaluation of RCID, a novel system to fingerprint RFID tags based on the unique reflection coefficient of each tag circuit. Based on a novel OFDM-based fingerprint collector, our system can quickly acquire and verify each tag’s RCID fingerprint which are independent of the RFID reader and measurement environment. Our system applies to COTS RFID tags and readers after a firmware update at the reader. Extensive prototyped experiments on 600 tags confirm that RCID is highly secure with the authentication accuracy up to 97.15% and the median authentication error rate equal to 1.49%. RCID is also highly usable because it only takes about 8 s to enroll a tag and 2 ms to verify an RCID fingerprint with a fully connected multi-class neural network. Finally, empirical studies demonstrate that the entropy of an RCID fingerprint is about 202 bits over a bandwidth of 20 MHz in contrast to the best prior result of 17 bits, thus offering strong theoretical resilience to RFID cloning and spoofing.