Research On Secure Routing Methods For WSN Based On Trust Cloud

Wireless Sensor Network(WSN)is a network system comprised by a large number of micro sensor nodes,which has the features of self-organization,multiple-hop,etc,it provides a technological foundation for the construction of the Internet of Things with perception function,and has broad application prospects.However,limited by the security vulnerability of wireless sensor network itself,there are still many outstanding problems to be solved,how to establish safe and efficient WSN routing is one of these problems.The cloud theory developed in recent years provides a possibility for solving WSN's secure routing problem.this paper studies the WSN security routing protocol,for malicious node attack problems that may be encountered in WSN routing,a trusted cloud-based secure routing algorithm(TC-SRA)for wireless sensor network was proposed,this paper will present the main works and innovations in the following aspects:1.Starting from the characteristics of wireless sensor network and application,analyses the security issues of WSN,also focuses on the attack on and solutions of WSN routing as well as the common wireless sensor network security routing algorithm,which laid a foundation for subsequent research.2.The paper proposes a method of building trust cloud nodes for WSN,and establishes a cluster hierarchical wireless sensor network model based on common nodes,cluster head nodes,trust clouds and sink node.WSN monitors node behavior that endangers network security based on trust cloud nodes.3.The algorithm is clustered according to the density and location of nodes,in the selection of cluster head nodes and trust clouds,the reputation of nodes should be considered in addition to the remaining energy,the distribution of nodes and the distance.4.The security routing of wireless sensor network is realized based on trust cloud trust evaluation.Which identifying and removing offensive malicious nodes under the supervision of the trust cloud node,considering the communication distance between nodes and the credibility of nodes,realizing secure energy efficient routing.The simulation results show that the Trusted Cloud-based Secure Routing Algorithm helps solve the routing security problem appearing in wireless sensor networks and can quickly identify the network of malicious nodes existing in the continuous attack and trust deceive attack and remove it from the network,achieve a safe energy efficient routing management.