Research on Key Management in Wireless Sensor Network
无线传感器网络密钥管理方案的研究*

Security is vital to determine whether wireless sensor network can be fully developed or not, and for network security, key management is the most vital at all. As a result, it is a continuously hot spot to research in this subject. Starting with the analysis of security in wireless sensor network, this paper describes several schemes of security key managements, discussing them in sorts of distributed and clustered, and comparing their advantages and disadvantages. Based on the discussion, it brings forward several research assumptions for designing security key management.