An efficient re-keying scheme for cluster based wireless sensor networks

Authors:
Faraz Idris Khan;Hassan Jameel;S. M. K. Raazi;Adil Mehmood Khan;Eui Nam Huh
Affiliations:
Internet Computing and Security Lab, Department of Computer Engineering, Kyung Hee University, Suwon, South Korea;Ubiquitous Computing Lab, Department of Computer Engineering, Kyung Hee University, Suwon, South Korea;Ubiquitous Computing Lab, Department of Computer Engineering, Kyung Hee University, Suwon, South Korea;Ubiquitous Computing Lab, Department of Computer Engineering, Kyung Hee University, Suwon, South Korea;Internet Computing and Security Lab, Department of Computer Engineering, Kyung Hee University, Suwon, South Korea
Venue:
ICCSA'07 Proceedings of the 2007 international conference on Computational science and Its applications - Volume Part II
Year:
2007

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Abstract

Due to vast application of WSN (Wireless Sensor Networks) in mission critical military operations, securing WSN has received lot of attention from the research community. WSN when deployed in hostile environment, they are prone to various kinds of attacks one of which is node capture which might reveal important sensor information being transferred to the captured node. Thus dynamic key management schemes employ re-keying mechanism to change the group key used by the sensor nodes for communication. Constrained resources such as energy, memory and computational capabilities of sensor nodes requires a re-keying scheme efficient in design to minimize overhead while maintaining secure communications over lifespan of the network. In this paper we present an efficient re-keying scheme for cluster based WSN which requires minimal communication with the base station and O(1) computation at the sensor node to calculate the new group key.