A method for locating fake APs based on sensor data and signal difference fusion

Abstract

The present invention discloses a method for locating pseudo APs based on the fusion of sensor data and signal differences. The Apollonius circle is constructed by using the difference values ​​of signals at different locations to achieve accurate detection of pseudo APs when a pseudo AP is found indoors. Positioning; it solves the problem in the existing technology that path loss model positioning requires knowing the transmit power and path loss parameters in advance, solves the problem of the environment affecting the signal when positioning using the strength of the received signal, and solves the error of the PDR algorithm Accumulation problem; this invention does not need to know the parameters of the loss model in advance. This method can eliminate the transmission power parameter and calculate the current path loss parameter in real time during the detection process; it can effectively improve the positioning accuracy by using the distance ratio from different points to the pseudo AP Take positioning as input instead of calculating distance directly.

Description

technical field [0001] The invention relates to the field of wireless network security, in particular to a method for locating a false AP based on sensor data and signal difference fusion. Background technique [0002] With the large-scale deployment of urban wireless local area networks, wireless local area network security has become particularly prominent and important, among which fake AP phishing attacks are one of the serious security threats in wireless networks. Restricted by various objective factors, many data are transmitted in clear text when transmitted on the WiFi network, such as general web pages, pictures, etc.; even when logging in to many websites or mail systems on the mobile phone, the account number and password are also transmitted in clear text Or just plain encrypted transmission. Therefore, in this case, once the network connected to the mobile phone is a fake AP set up by the attacker, various information transmitted through the fake AP, including...

AI Technical Summary

Problems solved by technology

[0008] In view of the above-mentioned problems or defects in the prior art, the purpose of the present invention is to provide a method for locating a false AP based on sensor data and signal difference fusion, which solves the need to know the transmit power in advance for path loss model positioning in the prior art. and path loss parameters, it solves the problem of the influence of the environment on the signal when using the strength of the received signal for positioning, and solves the problem of error accumulation in the PDR algorithm. Precise Positioning of False APs

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