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). ISSN 2076-3417

[img]
Preview
PDF (paper_channel_interference_0104)
paper_channel_interference_0104.pdf - Accepted Version
Available under License Creative Commons Attribution.

Download (3MB)

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:
ID Code:
124269
Deposited By:
Deposited On:
26 Mar 2018 14:24
Refereed?:
Yes
Published?:
Published
Last Modified:
25 Oct 2020 05:26