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An Efficient Key Management Protocol for Wireless Sensor and Actor Networks  

Kim, Wan-Ju (국방대학교 전산정보학과)
Nam, Kil-Hyun (국방대학교 전산정보학과)
Lee, Soo-Jin (국방대학교 전산정보학과)
Publication Information
Journal of KIISE:Computing Practices and Letters / v.13, no.7, 2007 , pp. 540-544 More about this Journal
Abstract
Researches on Sensor Network has become much more active and is currently being applied to many different fields. However since sensor network is limited to only collecting and reporting information regarding a certain event, and requires human intervention with that given information, it is often difficult to react to an event or situation immediately and proactively. To overcome this kind of limitation, Wireless Sensor and Actor Networks (WSANs) with immediate-response Actor Nodes has been proposed which adds greater mobility and activity to exisiting sensor networks. Although WSANs shares many common grounds with sensor networks, it is difficult to apply exisiting security technologies due to the fact that WSAN contains Actor Nodes that are resource-independent and mobile. This research therefore seeks to demonstrate ways to provide security, integrity and authentication services for WSAN's secure operation, by separating networks into hierarchcial structure by each node's abilities and providing different encryption key-based secure protocols for each level of hierarchy: Pair-wise Key, Node Key, and Region Key for sensor levels, and Public Key for actor levels.
Keywords
Wireless Sensor and Actor Network; Security; Key Management Protocol; Sensor Node; Actor Node;
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