摘要
根据MPEG-2协议和数字电视的条件接收原理,从密码学角度对条件接收技术中的加解扰技术进行了算法研究,有利于数字电视工作者更好地理解加解扰的工作原理,在数字电视推广应用中能很好地实现透明加扰,从而保证传输安全。
According to the principle of conditional access of digital TV and MPEG2 protocol, this paper researches the algorithm of scrambling and descrambling based on cryptology, the study is beneficial for DVB members to understand the principle, and achieves pellucid scrambling, guarantee the safety of the transmission.
出处
《中国有线电视》
2009年第8期814-816,共3页
China Digital Cable TV
关键词
数字电视
密码学
条件接收技术
加扰
DBV
cryptology
conditional access technology
scrambling
