关键词: 无线传感器网络, 部署信息, 区域划分, 指纹识别, 模式匹配, 密钥预分配

Abstract: With the widely application of the Wireless Sensor Network(WSN),the security problem is more and more prominent. The distribution and management of WSN receive more and more attention. This paper proposes a key predistribution scheme which matches patterns according to the fingerprint identification by dividing the network after collecting the deployment information. The scheme divides the network into several domains,and the seed pool is divided into multiple sub-seed pools relatively. Nodes select seeds from relative areas to generate patterns and texts,and use fingerprint function values as communication keys when match successfully. The performance and security analysis shows that the scheme can substantially improve a network’s connectivity and reduce storage consumption compared with the traditional random key pre-distribution scheme.

Key words: Wireless Sensor Network (WSN), deployment information, regional dividing, fingerprint identification, pattern matching, key pre-distribution