Evaluation of Physical Layer Secret Key Generation for IoT Devices
Evaluation of Physical Layer Secret Key Generation for IoT Devices
复制标题
物联网设备物理层密钥生成的评估
DOI：
10.1109/wamicon.2019.8765465
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Dandekar, Kapil R.
中科院分区：
文献类型：
--
作者：
Jacovic, Marko;Kraus, Martin;Mainland, Geoffrey;Dandekar, Kapil R.
随着物联网 (IoT) 的出现，我们日常生活的各个方面变得更加相互关联，我们的设备必须可靠且安全，免受威胁。 Wi-Fi 保护访问 (WPA/WPA2) 的漏洞过去曾被曝光，促使人们使用多种安全技术，甚至在 WPA3 发布后也是如此。物理层安全性利用通信系统的现有组件来实现非常适合物联网应用的设备保护方法。在这项工作中，我们提供了一种低复杂性技术，用于在物理层生成密钥，以提高物联网安全性。我们利用正交频分复用 (OFDM) 接收器的现有载波频率偏移 (CFO) 和信道估计组件来实现有效的方法。我们提出的密钥生成算法侧重于一对所需节点之间经历的唯一 CFO 和通道，并且据我们所知，之前尚未出于密钥生成的目的检查这些特征的组合。我们的技术适用于物联网设备，因为它们不需要大量的处理能力并且基于二阶统计。我们使用 USRP N210 软件定义无线电获得实验结果，并分析我们的方法在后处理中的性能。我们的技术提高了所需节点建立匹配密钥的能力，同时阻止窃听者的威胁，并且对于保护未来的物联网设备非常有用。
As aspects of our daily lives become more interconnected with the emergence of the Internet of Things (IoT), it is imperative that our devices are reliable and secure from threats. Vulnerabilities of Wi-Fi Protected Access (WPA/WPA2) have been exposed in the past, motivating the use of multiple security techniques, even with the release of WPA3. Physical layer security leverages existing components of communication systems to enable methods of protecting devices that are well-suited for IoT applications. In this work, we provide a low-complexity technique for generating secret keys at the Physical layer to enable improved IoT security. We leverage the existing carrier frequency offset (CFO) and channel estimation components of Orthogonal Frequency Division Multiplexing (OFDM) receivers for an efficient approach. The key generation algorithm we propose focuses on the unique CFO and channel experienced between a pair of desired nodes, and to the best of our understanding, the combination of the features has not been examined previously for the purpose of secret key generation. Our techniques are appropriate for IoT devices, as they do not require extensive processing capabilities and are based on second order statistics. We obtain experimental results using USRP N210 software defined radios and analyze the performance of our methods in post-processing. Our techniques improve the capability of desired nodes to establish matching secret keys, while hindering the threat of an eavesdropper, and are useful for protecting future IoT devices.
DOI：
10.1109/wamicon.2016.7483851
发表时间：
2016
期刊：
2016 IEEE 17th Annual Wireless and Microwave Technology Conference (WAMICON
影响因子：
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作者：
Katz, Brandon Z.;Sahin, Cem;Dandekar, Kapil R.
通讯作者：
Dandekar, Kapil R.
DOI：
10.1109/rws.2016.7444407
发表时间：
2016
期刊：
2016 IEEE Radio and Wireless Symposium (RWS)
影响因子：
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作者：
Cem Sahin;Brandon Katz;K. Dandekar
通讯作者：
Cem Sahin;Brandon Katz;K. Dandekar