Research Article
ADC-Bank: Detecting Acoustic Out-of-Band Signal Injection on Inertial Sensors
@INPROCEEDINGS{10.1007/978-3-031-51630-6_4, author={Jianyi Zhang and Yuchen Wang and Yazhou Tu and Sara Rampazzi and Zhiqiang Lin and Insup Lee and Xiali Hei}, title={ADC-Bank: Detecting Acoustic Out-of-Band Signal Injection on Inertial Sensors}, proceedings={Security and Privacy in Cyber-Physical Systems and Smart Vehicles. First EAI International Conference, SmartSP 2023, Chicago, USA, October 12-13, 2023, Proceedings}, proceedings_a={SMARTSP}, year={2024}, month={2}, keywords={Spoof attack Out-of-band acoustic signal injection Inertial sensor Multiple ADCs Detection and correction}, doi={10.1007/978-3-031-51630-6_4} }- Jianyi Zhang
Yuchen Wang
Yazhou Tu
Sara Rampazzi
Zhiqiang Lin
Insup Lee
Xiali Hei
Year: 2024
ADC-Bank: Detecting Acoustic Out-of-Band Signal Injection on Inertial Sensors
SMARTSP
Springer
DOI: 10.1007/978-3-031-51630-6_4
Abstract
Inertial sensors are widely used in navigation, motion tracking, and gesture recognition systems. However, these sensors are vulnerable to spoofing attacks, where an attacker injects a carefully designed acoustic signal to trick the sensor readings. Traditional approaches to detecting and mitigating attacks rely on module redundancy, i.e., adding multiple sensor modules to increase robustness. However, this approach is not always feasible due to the limited space and increased complexity of current printed circuit boards.
This paper proposes a new method, ADC-Bank, to detect inertial sensor spoofing attacks via acoustic out-of-band signals. Unlike other multiple-sensor-based solutions, it is based on component redundancy within one sensor, using multiple analog-to-digital converters (ADCs) with different sampling rates to simultaneously sample the output of the sensors. The different sample rates result in different aliasing frequencies for out-of-band signals that can be used to detect attacks. The proposed method is evaluated on off-the-shelf inertial sensors with commercial ADCs, demonstrating its ability to detect the attacking signals with relatively low cost and computation overhead.
