Wireless Sensor Network Security Analysis

As an important component and technical support of the Internet of things,Wireless Sensor Network(WSN)has been paid more and more attention to its security.Wireless sensor network is different from the traditional network,because of its diversity and network dynamics,network security is a great threat.The existing wireless sensor network security detection system has no formal analysis of the protocol,and has not done a thorough study of the attack type.This led to the detection of the type of attack is not comprehensive enough,the detection effect of poor reliability.Existing security detection methods are limited by the specific protocol,each method can only be used for a protocol,it is difficult to apply to other protocols.Aiming at the limitations of the existing security detection system,this paper implements a multi-protocol wireless sensor network security detection system,which can detect all types of attackers.First,expand the AWN language,so that it can't only describe the process of concurrent,but also describes the process of the state of the variables.AWN language based on the extension of the network protocol,can be achieved in the form of an attacker's analysis and verification.Secondly,aiming at the problem that the existing method can detect the type of the attacker,this paper introduces the attack point model,and proves that the method can cover all the known attackers.Then,using the program slicing technique,it can realize the automatic analysis protocol type,and then generate the detection method of each attacker type according to the data dependence.Finally,in the TinyOS system,the AODV protocol is given to simulate the attack detection experiments.The experimental results show that the method is effective.Not only the implementation of this system can make the security analysis of any protocol,but also protect the integrity of the attacker type detection,which is of great significance to the security analysis of wireless sensor network protocol.