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International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 5    
Website: http://www.ijser.org
scirp IJSER >> Volume 2, Issue 5, May 2011 Edition
A Novel Dynamic Key Management Scheme Based On Hamming Distance for Wireless Sensor Networks
Full Text(PDF, 3000)  PP.  
Author(s)
R.Divya, T.Thirumurugan
KEYWORDS
WSN’s, dynamic key management, collusion, hamming distance, security.
ABSTRACT
Numerous key management schemes have been proposed for sensor networks. The objective of key management is to dynamically establish and maintain secure channels among communicating nodes. Many schemes, referred to as static schemes, have adopted the principle of key predistribution with the underlying assumption of a relatively static short-lived network (node replenishments are rare, and keys outlive the network). An emerging class of schemes, dynamic key management schemes, assumes long-lived networks with more frequent addition of new nodes, thus requiring network rekeying for sustained security and survivability. This paper proposes a dynamic key management scheme by combining the advantages of simple cryptography and random key distribution schemes. When the hamming distance between the two nodes is found high, the unique key is changed instead of changing the set of keys and the communication takes place by using any one of the set of key x-oring with the new unique key. The security and performance of the proposed algorithm is compared with the existing dynamic key management scheme based on Exclusion Basis System and prove that the proposed scheme performs better when compared to existing scheme by considering the number of nodes colluded with time. The result obtained by simulation also shows that the proposed scheme provides security solution and performs better than the existing scheme.
References
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[2] W. Du et al., “A Key Management Scheme for Wireless Sensor Networks Using Deployment Knowledge,” Proc. IEEE INFOCOM ’04, Mar. 2004.

[3] D. Liu and P. Ning, “Improving Key Pre-Distribution with Deployment Knowledge in Static Sensor Networks,” ACM Trans. Sensor Networks, 2005, pp 204–39.

[4] G. Jolly et al., “A Low-Energy Key Management Protocol for Wireless Sensor Networks,” Proc. IEEE Symp. Comp. and Commun., June 2003, p. 335

[5] M. Eltoweissy et al., “Group Key Management Scheme for Large- Scale Wireless Sensor Network,” J. Ad Hoc Networks, Sept. 2005, pp. 796–802.

[6] M. Younis, K. Ghumman, and M. Eltoweissy, “Location aware Combinatorial Key Management Scheme for Clustered Sensor Networks,” to appear, IEEE Trans. Parallel and Distrib. Sys., 2006.

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