Research On Internal Attack Detection Method In Wireless Sensor Networks

Wireless sensor network is a distributed network which is often arranged in complex environment.The sensor node has the advantages of limited power supply,limited computing and communication capability.Therefore,the security of wireless sensor networks has been the focus of research in recent years.With the continuous improvement and development of encryption technology,key management technology and authentication technology,wireless sensor networks have gradually formed the first line of defense against external attacks.However,it is very important to study the internal attack of wireless sensor networks because of the variety of attacks,the malicious nodes are hidden and deceived,and the internal attacks of the network are difficult to detect and defense.This paper analyzes the current detection methods for internal attacks on wireless sensor networks,and summarizes the shortcomings of various detection methods.On this basis,this paper presents a wireless sensor network management system to achieve the internal attack regularity detection method.The main idea is in the wireless sensor network management system platform,through the running system related support technology,acquisition and processing of the relevant network status information,and finally by the attack detection module based on the detection rules to determine the network status to detect the network Internal attack.In this paper,we propose a selective forwarding attack detection method based on double listening and a route attack detection method based on topology information,according to the behavior characteristics of packet attack and route attack.In addition,in order to guarantee the accuracy of the internal attack detection results in the wireless sensor network,it is necessary to improve the positioning accuracy of the nodes in the network.Therefore,aiming at the current positioning technology,this paper proposes a localization method based on RSSI,which is based on RSSI positioning technology and centroid location technology,and improves the accuracy based on the existing positioning technology.