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条件接收系统的密钥传输机制分析
Analysis of Key Transportation Mechanism for Conditional Access System
【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。
【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.
【关键词】 条件接收;
消息认证;
密钥层次模型;
秘密共享;
【Key words】 conditional access; message authentication; key hierarchy model; secret sharing;
【Key words】 conditional access; message authentication; key hierarchy model; secret sharing;
- 【文献出处】 电视技术 ,TV Engineering , 编辑部邮箱 ,2004年07期
- 【分类号】TN918.6
- 【被引频次】10
- 【下载频次】86