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| An Efficient Broadcast Key Management Policy in Wireless Sensor Networks |
| Wu Liang; Cao Xiao-mei; Yang Geng; Li Da-wei |
| College of Computer, Nanjing University of Posts & Telecommunications, Nanjing 210003, China |
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Abstract With the characteristics of self-organizing, self-management and limited energy of WSN, the security is a great challenge. In this paper, a novel Efficient Broadcast Key Management Policy named as EBKMP is proposed. It divides broadcast trees into groups, and the principle of minimizing the hamming distance between neighbor groups is adopted in keys distribution, which enhances security and reduces the overhead caused by the changes of group members. Compared with present key management policies, EBKMP can improve the efficiency in communication and storage, and resist collusion attack effectively.
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Received: 19 June 2009
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Corresponding Authors:
Cao Xiao-mei
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2010, Vol. 32 
