同密是一种允许在DVB传输的一套节目中携带由不同的CA系统生成的多个CA信息给不同CA系统的机顶盒用户是接收数字信号的方式。
Chapter 2 describes all aspects of conditional access systen in DVB architecture including struct, principium, encrypt arithmetic, DVB simulcrypt and common interface.
第二章在DVB规范下论述了数字电视条件接收系统的结构和原理、加密算法、DVB同密规范和通用接口规范。
参考来源 - 数字电视广播条件接收系统的原理和实现·2,447,543篇论文数据,部分数据来源于NoteExpress
EIS是数字电视前端的管理调度系统,完成产品管理、加扰器的调度、CAS的同密管理等功能。
EIS is to schedule and manage the front devices in DTV field, it can manage products, schedule scramblers, arrange CAS simulcrypt and so on.
研究了CAS的结构框架和工作原理,分析了同密、多密的工作模式,并对系统中的加密算法进行了探讨。
The structure and principle of the CAS are introduced, application models of simulcrypt and multicrypt, used in CAS are analyzed. Besides, encryption arithmetic in CAS is discussed int…
属示罗密的子孙有约细斐的儿子,同着他有男丁一百六十。
And of the sons of Shelomith; the son of Josiphiah, and with him an hundred and threescore males.
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