Researchand Simulation about Key Predistribution Scheme in Sensor Networks
Jun Yang · Jisuanji fangzhen · 2011
Key establishment and management in wireless sensor networks are one of the important targets of security technology researches because traditional key cryptosystems are unsuitable for resource constrained sensor nodes.After establishing direct-keys among neighbor sensors,sensors in the network are different in energy consumption.Thus they can bring bad effects to the network.We propose an energy-balancing key management scheme in distributed sensor networks in order to improve network energy balance.This scheme establishes the energy-based sensor-disjoint paths and then chooses a good sensor-disjoint path by which two sensors negotiate an indirect key according to the Min-Max energy method.Compared with the conventional proposals,the proposed scheme provides good energy balance while still maintaining high network resilience.