基于身份的空间网络组密钥管理方案

Identity-based group key management scheme for space networks

针对现有组密钥管理方案无法适应空间网络的问题,提出了一种基于身份的空间网络组密钥管理方案。方案设置了一个由卫星节点组成的多播服务节点集合,协助多播群组完成公共参数的生成和广播,解决了组成员开销不平衡的问题;为同一群组提供服务的节点动态可变,避免了单点失效问题。与现有方案相比,本方案在满足安全要求的基础上,具有更小的计算、存储和通信开销。

The available group key management schemes are not suitable for space networks.Aiming at the problem,an identity-based space networks group key management scheme was proposed.It constructed a service nodes set using sat-ellite nodes to assist multicast group with calculating and broadcasting common parameters,and resolved the problem of imbalance consumption.The service node providing service for the same group was dynamic and changeable,which could avoid single-point failure.The proposed scheme can achieve security requirements and has less calculating,storing and communicating expense compared with available schemes.