Study of improved key distribution mechanisms based on two-layer structure for wireless sensor network

Authors:
Kaiping Xue;Mingxiu Hu;Peilin Hong;Hancheng Lu;Chan Guo;Yuan Zu
Affiliations:
Lab. of Information Network, Hefei, China;Lab. of Information Network, Hefei, China;Lab. of Information Network, Hefei, China;Lab. of Information Network, Hefei, China;Lab. of Information Network, Hefei, China;Lab. of Information Network, Hefei, China
Venue:
ICAIT '08 Proceedings of the 2008 International Conference on Advanced Infocomm Technology
Year:
2008

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Abstract

One of the key issues for wireless sensor network is designing viable security mechanisms for the protection of confidentiality, integrity and authentication to prevent malicious attacks, but with nodes' limited capabilities. Efficient Key Distribution mechanisms is so important for WSN's security. In this paper, we present two key distribution schemes based on two-layer structure for wireless sensor network, which relies the BFIBE algorithm [5] to build the Upper-Layer security links. Other keys for link encryption are distributed and agreed with the help of Upper-Layer nodes. To our knowledge, ours is the first work to discuss implementation issues on the key distribution mechanisms based on two-layer structure which only use BFIBE algorithm in the Upper-Layer. The presented schemes can torrent nodes' capture. As for security, computational complexity, and efficiency, the presented schemes have certain advantages.