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 is to schedule and manage the front devices in DTV field, it can manage products, schedule scramblers, arrange CAS simulcrypt and so on.
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。
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…
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。
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