Security Analysis of WiFi-based Sensing Systems: Threats from Perturbation Attacks

• URL: http://arxiv.org/abs/2404.15587v1
• Date: Wed, 24 Apr 2024 01:43:07 GMT
• Title: Security Analysis of WiFi-based Sensing Systems: Threats from Perturbation Attacks
• Authors: Hangcheng Cao, Wenbin Huang, Guowen Xu, Xianhao Chen, Ziyang He, Jingyang Hu, Hongbo Jiang, Yuguang Fang,
• Abstract summary: Deep learning technologies are inherently vulnerable to adversarial perturbation attacks. In this paper, we elaborate such an attack, called WiIntruder, distinguishing itself with robustness, universality, and stealthiness. Tests confirm the practical threats of perturbation attacks to common WiFi-based services, including user authentication and respiratory monitoring.
• Score: 18.25251260793266
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Deep learning technologies are pivotal in enhancing the performance of WiFi-based wireless sensing systems. However, they are inherently vulnerable to adversarial perturbation attacks, and regrettably, there is lacking serious attention to this security issue within the WiFi sensing community. In this paper, we elaborate such an attack, called WiIntruder, distinguishing itself with universality, robustness, and stealthiness, which serves as a catalyst to assess the security of existing WiFi-based sensing systems. This attack encompasses the following salient features: (1) Maximizing transferability by differentiating user-state-specific feature spaces across sensing models, leading to a universally effective perturbation attack applicable to common applications; (2) Addressing perturbation signal distortion caused by device synchronization and wireless propagation when critical parameters are optimized through a heuristic particle swarm-driven perturbation generation algorithm; and (3) Enhancing attack pattern diversity and stealthiness through random switching of perturbation surrogates generated by a generative adversarial network. Extensive experimental results confirm the practical threats of perturbation attacks to common WiFi-based services, including user authentication and respiratory monitoring.

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