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Research on Hierarchical Private Key Management Scheme of Wireless Sensor Networks

Author: HuLei
Tutor: LiLanYing
School: Harbin University of Science and Technology
Course: Applied Computer Technology
Keywords: Wireless sensor networks Network Security Clustering Key Management
CLC: TP212.9
Type: Master's thesis
Year: 2009
Downloads: 93
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Abstract


With the development of sensor technology, wireless communication and data processing technologies , the emergence of wireless sensor networks , new information acquisition and processing mode . Multiple sensor nodes through wireless communication , self-organizing way constitute a network to work together in real time perception, acquisition and processing of information . The wide range of sensor network applications , has been used for military , environmental science, space exploration and other fields . Sensor networks because of its open nature of the broadcast nature of radio network deployment area , easy to be monitored and a variety of malicious attacks , security is an extremely important issue . In order to achieve secure communication should be the content of the communication encryption and authentication . Sensor nodes resource constraints , traditional network key management scheme does not apply to wireless sensor networks . This paper briefly describes the concept of wireless sensor networks and related content , focusing on security issues in sensor networks , a new key management scheme based on clustering and analysis of the program on the safety and reduce communication energy consumption performance improvements , and finally using OPNET the program simulation , further validate the performance of the program . In the process of building programs , the key in sensor networks is how to create and how to manage key is the focus of this study and in the course of operation of the network , the key distribution algorithm based on clustering information , that is, the base station sends a public secret key to establish the communication of the base station and each cluster , using symmetric encryption is completed in each cluster internal communication between the node and the cluster head in the cluster , the base station to grasp the information of the entire network , and periodically sends the key update information , and registered in the base station , delete information to complete the joining and leaving of nodes in the network . The program is adapted to the hierarchical routing protocol for wireless sensor networks , sensor networks built by the application of the program to ensure its safety, and reduce energy consumption in the key process and prolong the survival time of the sensor network , which supports network dynamic changes that will further enhance the network lifetime .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation components,parts > Transmitter ( converter),the sensor > Sensor applications
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