| 条件接收系统的密钥传输机制分析 |
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| 引用本文： | 陈晓春,周祖成,王迪.条件接收系统的密钥传输机制分析[J].电视技术,2004(7):24-26,29. |
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| 作者姓名： | 陈晓春 周祖成 王迪 |
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| 作者单位： | 深圳清华大学研究院EDA实验室,广东,深圳,518057;清华大学,电子工程系,北京,100084;清华大学,电子工程系,北京,100084 |
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| 摘 要： | 分析了当前条件接收系统所采用的密钥层次模型,并介绍了一种基于秘密共享的改进方案,最后还对用于密钥传输的消息认证机制作了深入介绍.
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| 关 键 词： | 条件接收 消息认证 密钥层次模型 秘密共享 |
| 文章编号： | 1002-8692(2004)07-0024-03 |
Analysis of Key Transportation Mechanism for Conditional Access System |
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| CHEN Xiao-chun,ZHOU Zu-cheng,WANG Di.Analysis of Key Transportation Mechanism for Conditional Access System[J].Tv Engineering,2004(7):24-26,29. |
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| Authors: | CHEN Xiao-chun ZHOU Zu-cheng WANG Di |
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| Affiliation: | CHEN Xiao-chun1,2,ZHOU Zu-cheng2,WANG Di2 |
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| Abstract: | Message authentication plays an important role in the key transport of conditional access system. Key hierarchy model is analyzed in this paper for conditional access, and consequently an improved approach based on secret share schemes is discussed in depth. Finally, the mechanism of message authentication for key transportation is discussed. |
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| Keywords: | conditional access message authentication key hierarchy model secret sharing |
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