International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
Wireless Sensor Networks (WSN) usually consists of a large number of tiny sensors with limited computation capability, memory space and power resource. In this paper, the authors have proposed improved pairwise key management scheme based on deployment knowledge of the wireless sensor networks. Compared with previous proposed key pre-distribution schemes, the proposed method could significantly improve the performance and energy efficiency of the sensor nodes. It is very suitable for the sensor nodes that are limited in power, computational capacities, and memory. The proposed scheme is substantially more resilient against sensor nodes capture.