摘要
本文研究了一种多点传送中发生成员撤消时的基于有根树的密钥分配方案,分析了成员撤消事件的熵和分配给成员的最优平均密钥数量之间的关系,表明该方案在可扩展性、存储需求和通信负载之间达到了平衡。
This paper studies a rooted-tree based key distribution scheme for member revocation in multicast communication and analyzes the relation between the entropy of the member revocation event and the average optimal number of keys per member held .We show that the scheme achieves the tradeoff between the scalability, the storage requirement and the communication payload.
出处
《通信学报》
EI
CSCD
北大核心
2002年第6期110-115,共6页
Journal on Communications
基金
中国信息安全产品测评认证中心基金资助项目