A Hexagon-based Key Pre-distribution Scheme for Wireless Sensor Networks

摘要

Key management is the foundation for secure communication in wireless sensor networks. In this paper, a novel key pre-distribution scheme based on deployment knowledge was proposed. In the scheme, the target field is divided into two kinds of hexagon grids: group grids and key grids. Nodes in group grids and key grids are treated differently. By combining deployment knowledge with deterministic schemes, the scheme can drastically reduce the fraction of compromised links when some nodes are captured. The simulation results show that our scheme performs better in terms of resilience against node capture compared with other existing schemes.