| 基于B-树的分布式群组密钥管理机制 |
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| 引用本文： | 王勇,李明,曹元大. 基于B-树的分布式群组密钥管理机制[J]. 计算机工程, 2004, 30(20): 3-4,88 |
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| 作者姓名： | 王勇 李明 曹元大 |
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| 作者单位： | 北京理工大学软件学院,北京,100081;上海交通大学计算机科学与工程系,上海,200030 |
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| 基金项目： | 国家自然科学基金资助项目(6023012) |
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| 摘 要： | 提出把B-树引入到管理机制中，并给出了加入胁议和离开胁议的形式化描述。B-树方案在通信开销和计算方面优于二叉树方案，并且二者的差距随着B-树阶数的增大和群组成员数目的增加而明显加大。在安全性方面，B-树方案能够抵抗联合攻击。
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| 关 键 词： | B-树 分布式群组密钥管理 分布式平等密制管理 |
| 文章编号： | 1000-3428(2004)20-0003-02 |
A Distributed B-tree-based Group Key Management Scheme |
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| WANG Yong,LI Ming,CAO Yuanda. A Distributed B-tree-based Group Key Management Scheme[J]. Computer Engineering, 2004, 30(20): 3-4,88 |
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| Authors: | WANG Yong LI Ming CAO Yuanda |
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| Affiliation: | WANG Yong1,LI Ming2,CAO Yuanda1 |
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| Abstract: | After a distributed binary tree-based group key management scheme is studied, a B-tree-based scheme is proposed in this paper. At the aspects of communication cost and computation cost, the B-tree-based scheme is better than the binary tree-based scheme and the difference becomes larger obviously as the order of B-tree and the number of group members grow. The join protocol and leave protocol are described formally. In addition, the B-tree-based scheme is secure against collusive attacks. |
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| Keywords: | B-tree Distributed group key management Distributed flat key management |
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