BloothAir

IF 2 Q3 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS
Kai Li, N. Lu, Jingjing Zheng, Pei Zhang, Wei Ni, E. Tovar
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引用次数: 9

Abstract

Thanks to flexible deployment and excellent maneuverability, autonomous drones have been recently considered as an effective means to act as aerial data relays for wireless ground devices with limited or no cellular infrastructure, e.g., smart farming in a remote area. Due to the broadcast nature of wireless channels, data communications between the drones and the ground devices are vulnerable to eavesdropping attacks. This article develops BloothAir, which is a secure multi-hop aerial relay system based on Bluetooth Low Energy (BLE) connected autonomous drones. For encrypting the BLE communications in BloothAir, a channel-based secret key generation is proposed, where received signal strength at the drones and the ground devices is quantized to generate the secret keys. Moreover, a dynamic programming-based channel quantization scheme is studied to minimize the secret key bit mismatch rate of the drones and the ground devices by recursively adjusting the quantization intervals. To validate the design of BloothAir, we build a multi-hop aerial relay testbed by using the MX400 drone platform and the Gust radio transceiver, which is a new lightweight onboard BLE communicator specially developed for the drone. Extensive real-world experiments demonstrate that the BloothAir system achieves a significantly lower secret key bit mismatch rate than the key generation benchmarks, which use the static quantization intervals. In addition, the high randomness of the generated secret keys is verified by the standard NIST test, thereby effectively protecting the BLE communications in BloothAir from the eavesdropping attacks.
由于灵活的部署和出色的机动性,自主无人机最近被认为是一种有效的手段,可以作为有限或没有蜂窝基础设施的无线地面设备的空中数据中继,例如偏远地区的智能农业。由于无线信道的广播性质,无人机与地面设备之间的数据通信很容易受到窃听攻击。本文开发了一种基于蓝牙低功耗(BLE)连接的自主无人机的安全多跳空中中继系统BloothAir。为了对BloothAir中的BLE通信进行加密,提出了一种基于信道的密钥生成方法,该方法对无人机和地面设备接收到的信号强度进行量化以生成密钥。此外,研究了一种基于动态规划的信道量化方案,通过递归调整量化间隔,使无人机与地面设备的密钥位不匹配率降到最低。为了验证BloothAir的设计,我们使用MX400无人机平台和专门为无人机开发的新型轻型机载BLE通信器Gust无线电收发器建立了一个多跳空中中继试验台。大量的实际实验表明,与使用静态量化间隔的密钥生成基准相比,BloothAir系统实现了显着降低的密钥位不匹配率。此外,生成的密钥具有很高的随机性,并通过标准的NIST测试进行验证,从而有效地保护了BloothAir中的BLE通信免受窃听攻击。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
ACM Transactions on Cyber-Physical Systems
ACM Transactions on Cyber-Physical Systems COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS-
CiteScore
5.70
自引率
4.30%
发文量
40
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