| 一种分层分组式组播密钥管理方案 |
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| 引用本文： | 徐彦彦,徐正全,陈曦. 一种分层分组式组播密钥管理方案[J]. 计算机工程, 2007, 33(11): 129-131 |
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| 作者姓名： | 徐彦彦 徐正全 陈曦 |
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| 作者单位： | 武汉大学测绘遥感信息工程国家重点实验室多媒体通信工程中心,武汉,430079;中国船舶重工集团公司第701研究所,武汉,430070 |
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| 摘 要： | 给出了一种分层分组式组播密钥管理方案，介绍了这种方案的主要思想，分析了优缺点。这种方案可扩展性好，密钥更新代价低，当数据在不同子组间传输时，有效地解决了其它分层分组式方案中普遍存在的对数据多次加密/解密造成的传输效率低下的问题，同时也保证了组播组前向/后向安全。
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| 关 键 词： | 组播 密钥管理 密钥更新 分层分组 |
| 文章编号： | 1000-3428（2007）11-0129-03 |
| 修稿时间： | 2006-06-30 |
De-centralized Multicast Key Management Scheme |
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| XU Yanyan,XU Zhengquan,CHEN Xi. De-centralized Multicast Key Management Scheme[J]. Computer Engineering, 2007, 33(11): 129-131 |
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| Authors: | XU Yanyan XU Zhengquan CHEN Xi |
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| Affiliation: | 1. Multimedia Communication Engineering Center, State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing Wuhan University Wuhan 430079; 2. China Ship Building Industry Corporation-No.701 Research and Development Institute, Wuhan 430070 |
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| Abstract: | This paper presents a new de-centralized multicast key management scheme. The main idea is introduced and its advantages and disadvantages are analyzed. The scheme is scalable, re-key cost effective. When data is transmitted among different subgroups, the problem of low efficiency in data transmission caused by multiple encryptions/decryptions in existing de-centralized schemes is solved. Also the forward/backward secrecy is guaranteed. |
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| Keywords: | Multicast Key management Re-key De-centralized |
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