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arXiv · 2007.15348

Who Is Charging My Phone? Identifying Wireless Chargers via Fingerprinting

Zhiyun Wang·Jiayu Zhang·Xiaoyu Ji·Wenyuan Xu·Gang Qu·Minjian Zhao
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Abstract

With the increasing popularity of the Internet of Things(IoT) devices, the demand for fast and convenient battery charging services grows rapidly. Wireless charging is a promising technology for such a purpose and its usage has become ubiquitous. However, the close distance between the charger and the device being charged not only makes proximity-based and near field communication attacks possible, but also introduces a new type of vulnerabilities. In this paper, we propose to create fingerprints for wireless chargers based on the intrinsic non-linear distortion effects of the underlying charging circuit. Using such fingerprints, we design the WirelessID system to detect potential short-range malicious wireless charging attacks. WirelessID collects signals in the standby state of the charging process and sends them to a trusted server, which can extract the fingerprint and then identify the charger.

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Zhiyun Wang, Jiayu Zhang, Xiaoyu Ji, Wenyuan Xu, Gang Qu, Minjian Zhao. 2020-07-30. Who Is Charging My Phone? Identifying Wireless Chargers via Fingerprinting. https://arxiv.org/abs/2007.15348

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