有条件接收系统(Conditional Access System，CAS)是数字电视系统运营的关键技术。它是数字电视加密控制的核心技术保证，为数字电视的运营提供了必要的技术手...
基于68个网页-相关网页
... 用户接收系统 IRD 有条件接收系统 Conditional Access systems ; Conditional Access 水下声波接收系统 underwater acoustic receiving system ...
基于4个网页-相关网页
可下载有条件接收系统 DCAS
有条件接收系统通过对节目信息进行加扰从而达到对用户收取收视费用。
Conditional Access System (CAS) is used to charge the subscriber for subscribing fee by scrambling the program information.
安全性是衡量有条件接收系统的重要指标，它直接取决于所采用的加扰算法和密钥分配算法。
Security is an essential factor of CAS, which mainly depends on scrambling algorithm and key distribution algorithm.
针对数字电视有条件接收系统中的密钥分配，提出了一种基于椭圆曲线密码的分层访问控制密钥分配方案。
A key distribution scheme based on elliptic curve cryptography for Conditional Access System (cas) in Digital TV broadcast is proposed.
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