一种适用于Ad hoc空间网络的DPSKC密钥管理方案

Key management scheme DPSKC for Ad hoc space network

减少为Ad hoc空间网络中新成员分发子密钥的处理时延,防止组内成员的攻击及将组内成员的子密钥泄漏给新成员。针对Ad hoc空间网络的特点,提出了一种基于椭圆曲线密码学的新型Ad hoc空间网络密钥管理方案DPSKC。设计了分布式环境下的并行子密钥计算技术和保密因子的分组传输技术,前者减少了为新成员分发子密钥的处理时延,后者可以防止组内成员的攻击以及将组内成员的子密钥泄漏给新成员。新方案在子密钥分发时延、安全性、计算和存储开销方面具有良好的性能。

To reduce the processing delay for sub-key distribution and prevent attack from the compromised users and the leaking of the sub-keys to new users, based on the characteristics of ad hoc space network, a novel scheme DPSKC for key management in ad hoc space network was proposed. Based on elliptic curve cryptography, the parallel sub-key computing technology and packet transmission for distributed environment were designed. The former technology reduced the processing delay for sub-key distribution, and the latter prevented the attack from compromised users and the leaking of the sub-keys to new user. The new scheme is secure and performs well in the sub-key distribution delay, the computation and memory consumption.