| 基于Huffman单向函数树的组播密钥更新协议 |
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| 引用本文： | 祝烈煌,曹元大.基于Huffman单向函数树的组播密钥更新协议[J].北京理工大学学报,2004,24(6):524-527. |
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| 作者姓名： | 祝烈煌 曹元大 |
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| 作者单位： | 北京理工大学,信息科学技术学院计算机科学工程系,北京,100081;北京理工大学,信息科学技术学院计算机科学工程系,北京,100081 |
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| 摘 要： | 在考虑组员离开通信组不同概率的基础上,提出基于Huffman单向函数树(HOFT)的组播密钥更新协议.介绍了单向函数树(OFT)组播密钥更新协议;提出了包括初始化HOFT算法以及组员加入和离开通信组时的HOFT密钥更新协议;分析了HOFT组播密钥更新协议的消息包数、组控制者保存的密钥数以及组员保存的密钥数等,研究表明,在所有基于OFT的组播密钥更新协议中,HOFT组播密钥更新协议的平均性能最优.
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| 关 键 词： | 组播 密钥更新 哈夫曼 单向函数树 |
| 文章编号： | 1001-0645(2004)06-0524-05 |
| 收稿时间： | 2003/8/19 0:00:00 |
Multicast Rekeying Protocol Based on Huffman One-Way Function Tree |
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| ZHU Lie-huang and CAO Yuan-da.Multicast Rekeying Protocol Based on Huffman One-Way Function Tree[J].Journal of Beijing Institute of Technology(Natural Science Edition),2004,24(6):524-527. |
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| Authors: | ZHU Lie-huang and CAO Yuan-da |
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| Institution: | Department of Computer Science and Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing100081, China;Department of Computer Science and Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing100081, China |
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| Abstract: | Considering the difference in probability of various members leaving the communication group the paper proposes a new multicast rekeying protocol based Huffman one-way function tree (HOFT). The paper introduces the OFT multicast rekeying protocol, proposes the HOFT multicast rekeying protocol including the HOFT initialization algorithm and the HOFT multicast rekeying protocol when a member adds to or leaves the communication group. The paper then analyzes the performance of the HOFT multicast rekeying protocol on the number of rekeying messages and the number of keys the GC and member should save. Average performance of the HOFT multicast rekeying protocol appears to be the best among all the multicast rekeying protocols based on OFT. |
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| Keywords: | multicast rekeying Huffman one-way function tree |
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