SINET中组密钥管理方案研究

Research on group key management in space information network

文章介绍了空间信息网络研究的背景、目的和意义,由其巨大的安全等威胁确定需要组密钥管理来保障其安全和性能;分析了组密钥管理的拓扑结构后确定分层分组式更适合空间信息网络的特性,并给出其典型结构逻辑密钥树方案的安全性能分析及相关改进方案的介绍;在研究空中网络组密钥管理方案后发现整个空间网络架构的密钥管理方案、空间信息网络的私钥更新方案研究很少,文章给出研究思路;并给出密钥更新节点的在线解决办法,最后提出展望。

This paper introduces the research background, purpose and significance of space information network, due to its huge security threats, it needs group key management to ensure its security and performance; after analyzing the topological structure of group key management, it is confirmed that hierarchical grouping is more suitable for the characteristics of spatial information network, and gives the safety performance analysis of the typical structure of logical key tree solutions and the introduction of related improved solutions; when found that research on private key update schemes of the space information network is little, the research idea is given in this paper, and online solution to key update nodes are put forward, as well as the prospects of it.