| 基于用户概率分组模型的密钥分发方法研究 |
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| 引用本文： | 屈劲,葛建华,蒋铭.基于用户概率分组模型的密钥分发方法研究[J].电子学报,2003,31(8):1266-1268. |
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| 作者姓名： | 屈劲 葛建华 蒋铭 |
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| 作者单位： | 1. 西安电子科技大学计算机网络与信息安全教育部重点实验室,陕西西安 710071;2. 上海交通大学电子信息学院,上海 200030 |
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| 基金项目： | 国家教育部高校骨干教师资助项目，陕西省自然科学基金 (No .2 0 0 2f0 8) |
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| 摘 要： | 条件接收系统是付费电视系统的重要组成部分,而其中密钥分发的效率和安全性又是影响条件接收系统性能的关键因素.本文基于用户概率模型提出了用户霍夫曼树分组模型及相应密钥分发方法,该方法具有最优的分发效率.
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| 关 键 词： | 条件接收 付费电视 密钥分发 霍夫曼树 |
| 文章编号： | 0372-2112(2003)08-1266-03 |
| 收稿时间： | 2001-11-19 |
On Key Distribution Based on Grouping User with Probability |
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| QU Jin ,GE Jian hua ,JIANG Ming.On Key Distribution Based on Grouping User with Probability[J].Acta Electronica Sinica,2003,31(8):1266-1268. |
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| Authors: | QU Jin GE Jian hua JIANG Ming |
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| Affiliation: | 1. Key Lab of Computer Network and Information Security,Xidian University,Ministry of Education,Xi'an,Shaanxi 710071,China;2. School of Electronics & Information Technology,Shanghai Jiaotong University,Shanghai 200030,China |
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| Abstract: | Conditional access system is the crucial part of Pay TV System,and the efficiency and security of key distribution are the main factors which influence the performance of conditional access system.In this paper we proposed a new key distribution scheme on the basis of grouping users with their probability,and prove that this scheme has optimal distribution efficiency. |
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| Keywords: | conditional access pay TV key distribution Huffman tree |
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