| 基于超球形的多播密钥更新方法 |
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| 引用本文： | 陈少军,冯年荣,许勇,李杰.基于超球形的多播密钥更新方法[J].安徽工程科技学院学报,2007,22(3):48-50. |
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| 作者姓名： | 陈少军 冯年荣 许勇 李杰 |
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| 作者单位： | 安徽师范大学,数学计算机科学学院,安徽,芜湖,241000 |
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| 基金项目： | 安徽省教育厅自然科学基金资助项目(2005kj009zd)，安徽省软科学基金资助项目(06035021)，安徽师范大学专项基金资助项目(2005bzx17) |
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| 摘 要： | 多播安全要确保所有参加多播的成员安全地共享同一组密钥,当有成员加入或离开时需要及时更新组密钥.当组播规模很大时,更新组密钥的效率是一个重要的问题.在研究密钥更新的基础上,提出一种基于超球形的多播密钥更新模型.该模型充分利用成员之间既有独立性又有协同性的特点,解决密钥更新问题,该方法更新效率高,组管理器储存密钥总数少.算法较LKH和OFT有优势.
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| 关 键 词： | 多播安全 密钥更新 超球形 密钥树 |
| 文章编号： | 1672-2477（2007）03-0048-03 |
| 修稿时间： | 2007-03-23 |
A new method of secure multicast rekeying based on hyperball |
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| CHEN Shao-jun,FENG Nian-rong,XU Yong,LI Jie.A new method of secure multicast rekeying based on hyperball[J].Journal of Anhui University of Technology and Science,2007,22(3):48-50. |
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| Authors: | CHEN Shao-jun FENG Nian-rong XU Yong LI Jie |
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| Abstract: | Multicast security ensures that all members of a multicast group share the same set of keys safely and when some members join or leave,new keys must be updated.When the size of the multicast is large,the efficiency of rekeying is a very important problem.Based on the research of rekeying,this article presents a new model and its algorithm based on secure multicast rekeying of hyperball.This model completely posesses the property of the independence and cooperation between members to resolve the problem of rekeying.This method is more efficient and the number of keys in group manager is much less.The algorithm is better than LKH and OFT. |
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| Keywords: | multicast secure rekey hypterball key tree |
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