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A Passive Fingerprint Technique to Detect Fake Access Points,
Abstract and Figures
The aim of this paper is to detect Rogue Access Points (RAPs) that clone legitimate Access Points (APs) characteristics. A novel passive approach that takes advantage of the characteristics of physical layer fields via the Radiotap length is proposed. This approach is a general fingerprint, thus, it can be used for different purposes such as identification, network monitoring and intrusion detection systems. We utilize the fingerprint to detect RAPs to evaluate its effectiveness. The technique is implemented on a commercially available wireless card to assess its accuracy. The proposed detection algorithm accomplishes 100 percent accuracy to determine the RAPs in a lightly loaded traffic environment. The detection can be recognized in less than 100 ms and is scanned in a real-time setting. The robustness and the effectiveness of the detection algorithm are examined in three locations.
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