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Abstract

Wireless sensor network is a network system which consists of a large number of sensor nodes deployed in the region to monitor some things. The sensor nodes form a multi-hop self-organized network system through wireless means of communication. It can be defined as an autonomous, ad hoc system consisting of a collective of networked sensor nodes designed to intercommunicate via wireless radio. Typically, these nodes coordinate to perform a common task. WSN takes on widespread application foreground and becomes a new research area of modern corresponds technology. Both academia and industries are very interested in it.This article is focus on the security issues of clustering process in WSN. Wireless sensor network has large number of nodes and individual nodes have extremely limited resources. So, the primary goal is to design effective energy conservation and to extend life cycle of network. We choose LEACH agreement as the basis of the security design of clustering process.The author analyzed and compared against the wireless sensor network routing protocols and strategies to reduce energy consumption, drawing an excellent idea, put forward their ideas to improve, summed up the following points:(1)Key management includes three parts: the use of certified agreementsμTESLA Broadcasting; nodes and base stations share the pairwise keys for communication; ordinary nodes use random key pre-distribution model to achieve security for communication.(2)In order to strengthen the security of LEACH agreement, this article puts forward a specially secure solution. The program is focus on defending HELLO flood attacks (the reasons are in the text). Through verifying the bi-directional link, the identity authentications between nodes and implied counter approach to prevent the replay attacks from malicious nodes, the program strengthen the security of the original agreement. Even in The worst-case scenario, the program can also provide secure protection.(3)This article uses neighbor validation method in the process of clustering. Ordinary nodes use local secure information to calculate and then select reliable intermediate node, the nodes at the same time also storage secure information certified by the neighbors. The method can effectively resist wormholes attacks.(4)Base station participates in the process of producing cluster heads, which greatly inhibited the malicious nodes that want to be elected as cluster heads frequently.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Mobile Communications
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Security of Clustering in Wireless Sensor Network

Abstract

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