摘要
介绍了DVB数字视频广播条件接收系统中通用加扰算法的原理和实现过程,详细分析了块加密和流加密的实现过程及两者的结合,并编写了C程序,通过软件实现了通用加扰算法。
This paper introduces the theory and implementation process of the common scrambling algorithm in DVB conditional access system. It analyzes the block cipher and the stream cipher separately and gives an overview of how they interact each other. Also, C language is used to realize this algorithm and the results turn out good.
出处
《通信技术》
2007年第11期297-299,共3页
Communications Technology
关键词
通用加扰算法
块加密
流加密
条件接收系统
common scrambling algorithm
block cipher
stream cipher
conditional access system
