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基于状态密钥树的安全群组密钥分发协议 被引量:6

Secure Group Key Distribution Protocol Based on the Status Key Tree
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摘要 为了减少群组密钥分发协议的存储代价,提出了一种基于状态密钥树的群组密钥分发协议.给出了状态密钥树的构造方法.分别给出了当组员加入/离开通信组时的群组密钥分发协议的过程.分析了协议的安全性和性能.状态密钥树将组控制者密钥服务器的存储代价从O(n)减少到O(logdn). In order to decrease the storage cost of group key distribution protocol, a secure group key distribute protocol based on the status key tree is proposed. A method for constructing of status key tree is proposed. The particular process of group key distribution when a member joins/leaves the group is suggested. The security and performance of the protocol are analyzed. SKT decreases the storage cost group control key server (GCKS) needs from O(n) to O(logdn).
出处 《北京理工大学学报》 EI CAS CSCD 北大核心 2006年第9期805-808,共4页 Transactions of Beijing Institute of Technology
基金 国家自然科学基金资助项目(60373057) 北京理工大学青年基金项目(200501F4211)
关键词 群组通信 安全通信 密钥更新 密钥树 group communication secure communication re-key key tree
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参考文献8

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