Key Management in Wireless Sensor Networks: Development and Challenges
Xin Yang Zhang, Ji Dong Wang · Applied Mechanics and Materials · 2014
In wireless sensor network (WSN) security, key management is a big challenge issue as it forms the basic security structure of the networks. Various WSN key management schemes proposed so far attempt to satisfy the security, efficiency and operation requirements under the resource constrain of WSN. In this paper, the constraints of WSN and requirements of key management are discussed. Several key management schemes are presented, analyzed and classified. Finally, some unresolved issues and future works on these schemes are identified. The discussion focuses on efficiency, fault tolerant, influence reduction, dynamic management and cross-layer security.