基于SCAI的通用CA软件架构的研究与实现

Research and Implementation of a Universal CA Architecture Based on SCAI

通过对数字机顶盒（STB）机卡分离技术及其接口关系的研究,介绍了一种基于智能卡（Smartcard）条件接收接口（SCAI）的通用条件接收（CA）软件架构。该方案建立了一个独立于特定CA系统的通用接收平台,而不需要对现有的硬件和CA系统做任何的改动,只需在数字电视机顶盒中嵌入一个公共的CA插件,具有成本低、实现简单的特点,能够有效地解决当前国内在“整体平移”工程中出现的一些问题。

Through making a research on the technology of separating smart card and set-top box and their interface, this paper introduced a universal CA software architecture based on SCAI. The proposed scheme builds a universal receive platform independent of a particular CAS, without additional requirement of any hardware and CAS. The only necessary unit is an inlay of a common conditional access software plug-in which is to compliant with the SCAI specification in the STB. It is cost-effective and simple, and can effectively solve some problems in the whole translation project.