Novel Anti-Wireless Disassociation Frame Dos Attack Method Based on Rough Sets

Abstract

The invention relates to a novel method for preventing DoS attack of a wireless disassociation frame based on a rough set, and provides a disassociation frame validity decision rule based on various types of characteristic attributes of an 802.11 frame, wherein the characteristic attributes mainly comprises nine parts: frame number difference, the type of a previous frame, a time interval between a frame and the previous frame, field control byte configuration, frame receiver address setting, frame sender address setting, BSSID setting, Reason Code setting, and Duration ID setting. The method comprises the steps: building a decision table for discriminating whether the disassociation frame is legal or not according to the research of WiFi wireless communication features and the attribute characteristics of the disassociation frame; carrying out the attribute reduction of a conventional method which employs nine condition attributes for discriminating whether the disassociation frame is legal based on the rough set theory, wherein the novel method just needs three condition attributes for judging the authenticity of the disassociation frame; and building a novel '802.11w-rough set filtering ' method, wherein the method can enable a WiFi LAN to effectively prevent the DoS attack of the wireless disassociation frame at low and high attack rates.

Description

technical field [0001] The invention relates to the technical field of DoS attacks on WiFi wireless networks, in particular to a novel method for preventing DoS attacks of wireless disassociation frames based on rough sets. Background technique [0002] 802.11 wireless communication technology is widely used in industrial production line monitoring, urban safety inspection, urban traffic monitoring, food logistics monitoring, fire scene rescue monitoring, water supply monitoring, flood scene rescue monitoring, power monitoring, oil field monitoring, environmental monitoring, school safety monitoring, anti-terrorism Anti-riot security monitoring and community security monitoring, etc. Most of the real-time information applications based on 802.11 wireless communication technology involve key areas of industrial production and people's livelihood. Wireless data transmission has high requirements for security, real-time performance and reliability. If there is information leaka...

AI Technical Summary

Problems solved by technology

The research results found that the 802.11w method can only prevent low attack rate (<5fps) disassociation frame DoS attack, it cannot prevent high attack rate disassociation frame DoS attack

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