Hash-Chain Improvement of Key Predistribution Schemes Based on Transversal Designs
Qiang Gao, Wenping Ma, Wei Luo, Feifei Zhao · IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences · 2017
Key predistribution schemes (KPSs) have played an important role in security of wireless sensor networks (WSNs). Due to comprehensive and simple structures, various types of combinatorial designs are used to construct KPSs. In general, compared to random KPSs, combinatorial KPSs have higher local connectivity but lower resilience against a node capture attack. In this paper, we apply two methods based on hash chains on KPSs based on transversal designs (TDs) to improve the resilience and the expressions for the metrics of the resulting schemes are derived.