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本文是对付费电视系统加密技术的概述,涉及了电视信号置乱加密的基本概念和密钥的管理分配方法。对常用的一些加密技术作了较详细的说明,最后简介了目前国外已经使用的一些加密系统的概况。
This article is an overview of encryption technology for pay-TV systems, covering the basic concepts of scrambling and encryption of television signals and the management and distribution of keys. Some commonly used encryption technology made a more detailed description, and finally introduced the current foreign countries have used some of the overview of encryption systems.