Uneven key pre-distribution scheme for multi-phase wireless sensor networks
Çatakoğlu, Abdullah Onur and Levi, Albert (2013) Uneven key pre-distribution scheme for multi-phase wireless sensor networks. In: 28th International Symposium on Computer and Information Sciences (ISCIS 2013), Paris, France
Official URL: http://dx.doi.org/10.1007/978-3-319-01604-7_35
In multi-phase Wireless Sensor Networks (WSNs), sensor nodes are redeployed periodically to replace nodes whose batteries are depleted. In order to keep the network resilient against node capture attacks across different deployment epochs, called generations, it is necessary to refresh the key pools from which cryptographic keys are distributed. In this paper, we propose Uneven Key Pre-distribution (UKP) scheme that uses multiple different key pools at each generation. Our UKP scheme provides self healing that improves the resiliency of the network at a higher level as compared to an existing scheme in the literature. Moreover, our scheme provides perfect local and global connectivity. We conduct our simulations in mobile environment to see how our scheme performs under more realistic scenarios.
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