Defeat Your Enemy Hiding Behind Public WiFi : WiGuard Can Protect Your Sensitive information from CSI-based Attack

Zhang, Jie and Tang, Zhanyong and Li, Meng and Chen, Xiaojiang and Fang, Dingyi and Wang, Zheng (2018) Defeat Your Enemy Hiding Behind Public WiFi : WiGuard Can Protect Your Sensitive information from CSI-based Attack. Applied Sciences, 8 (4): 515. ISSN 2076-3417

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Abstract

Channel state information (CSI) has been recently shown to be useful in performing security attacks in public WiFi environments. By analyzing how CSI is affected by finger motions, CSI-based attacks can effectively reconstruct text-based passwords and locking patterns. This paper presents WiGuard, a novel system to protect sensitive on-screen input information in a public place. Our approach carefully exploits WiFi channel interference to introduce noise to attacker’s CSI measurements to reduce the success rate of CSI-based attacks. Our approach automatically detects when a CSI-based attack happens. We evaluate our approach by applying it to protect text-based passwords and pattern locks on mobile devices. Experimental results show that our approach is able to reduce the success rate of CSI-based attacks from 92–42% for text-based passwords and from 82–22% for pattern lock.

Item Type:
Journal Article
Journal or Publication Title:
Applied Sciences
Subjects:
?? csi-based attackchannel interferencesensitive information protection ??
ID Code:
124269
Deposited By:
Deposited On:
26 Mar 2018 14:24
Refereed?:
Yes
Published?:
Published
Last Modified:
23 Jan 2024 01:21