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Journal of Information Science and Engineering, Vol. 24 No. 6, pp. 1837-1858 (November 2008)

Energy-Efficient Key-Management (EEKM) Protocol for Large-Scale Distributed Sensor Networks*

Kwang-Jin Paek1, Ui-Sung Song2, Hye-Yong Kim3,+ and Jongwan Kim4
1Convergence SW Research Division
Electronics and Telecommunications Research Institute
Daejeon 305-700, Korea
2Department of Computer Education
Busan National University of Education
Busan 611-736, Korea
3College of Game
Hongik University
Chungnam 339-701, Korea
4Department of Computer Science and Engineering
Korea University
Seoul 136-701, Korea

The more wireless sensor networks grow, the more effective security mechanisms are needed. This paper suggests a cryptographic key-management protocol, Energy-Efficient Key-Management protocol. Using a location-based group key allocation, the proposed protocol provides the revocation of compromised nodes and energy-efficient rekeying. Our protocol is motivated by the observation that unicast-based rekeying does not satisfy the security requirements of periodic rekeying in wireless sensor networks. Our protocol provides broadcast-based rekeying for low-energy key management and high resilience. In addition, to increase the complexity of encryption keys, the protocol uses a dynamic composition key scheme. Our protocol provides group management protocols for secure group communication. We compared the energy efficiency of our protocol to other protocols with the rekeying and revocation messages and simulated them.

Keywords: energy efficiency, key management, security, sensor network, dynamic keying, rekeying, revocation, resilience

Full Text () Retrieve PDF document (200811_14.pdf)

Received December 14, 2006; revised September 7 & October 16, 2007 & June 19, 2008; accepted July 17, 2008.
Communicated by Jeng-Neng Hwang.
* This work was supported by the IT R&D program of MKE/IITA [2006-S-085-01, Nano OS for Automobile Sensor Nodes].
* This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD) (KRF-2007-531-D00011) and was presented in the 2007 International Conference on Multimedia and Ubiquitous Engineering.
+ Corresponding author.