摘要
介绍数字电视CA系统的框架和原理,重点介绍其中的三重加密体系,最后叙述CA系统的实施方案,包括同密和多密两种方式。
In this paper, the structure and the principle of CA system in CATV are introduced firstly. Then we emphasize on the tri-encrypt system. At last we present the implementation of CA system including simulcrypt mode and the multicrypt mode.
出处
《中国有线电视》
2005年第1期48-51,共4页
China Digital Cable TV
