由于无线网络在移动设备和传输媒介方面的特殊性,对其密钥管理技术的研究比有线网络的限制更多、难度更大。本文在分析无线网络安全需求的基础上,以无线传感器网络为例,重点分析了几种重要的密钥管理方案,总结在无线环境下设计密钥管理方案的重点考虑因素。 Due to the particularity of wireless networks in mobile devices and transmission media, the research on their key management technologies is more difficult and harder than that of wired networks. Based on the analysis of wireless network security requirements, taking wireless sensor networks as an example, this paper analyzes several key key management schemes and summarizes the key considerations in designing key management scheme in wireless environment.