A Novel Pairwise Keys Pre-distribution Scheme Based on Binary Tree in Wireless Sensor Networks

Wireless sensor networks (WSNs) are wireless networks that include sensor nodes with limited storage and communication capabilities. Security in sensor networks is critical when there are potential adversaries. In this paper we propose a new key pre-distribution scheme which improves the resiliency and wisely uses the different network and the node resources. This scheme uses binary tree and matrix of knowledge which provide selective security levels and enhances networks resilience against node capture without using more memory