Dynamic Key Pre-distribution Scheme for Wireless Sensor Networks

• Main Authors: Hsiao-Yung Chen, 陳孝勇
• Other Authors: Tzong-Chen Wu
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/63922354205303651022

碩士 === 國立臺灣科技大學 === 資訊管理系 === 96 === In wireless sensor networks, the secure key management issue is important. Due to the resource constraints in sensor nodes, traditional key agreement schemes are infeasible for large-scale wireless sensor networks. Key pre-distribution, which is to distribute some information into sensor nodes before deployment, is thought to be a practical way to achieve information security in wireless sensor networks. However, most researches are based on random key pre-distribution method, which only reaches a probabilistic connectivity of the network because of the random property. And it makes sensor nodes have to cost more resources to establish the secure channel. Therefore, we propose a Dynamic Key Pre-distribution Scheme for Wireless Sensor Networks. The proposed scheme can reach the following four security metrics: (1) resilience against node capture; (2) resistance against node replication; (3) revocation; (4) scalability. Besides we can also satisfy some properties, including (1) low storage size; (2) low computation; (3) full connectivity; (4) dynamic node and key management.