一种安全、经济、有效的防止CW共享的方法

An Anti-CW-Sharing Method

本文在基于深入调查分析CW共享技术原理的基础上,提出了一种安全、经济、有效的防止CW共享的方法,而且使用该方法可以既不增加硬件成本,也没有破环现有的同密标准体系。

During development of China’s CATV digitalization,CW sharing’s decryption methods are popular in CAS.To a certain extent,it impacts on CATV’s operation order.Based on analysis of CW sharing technical principle,this article puts forward an anti-CW-sharing method.Without the enhancement of hardware cost and the damage of existing shared cipher standard system,this method features safety,economy and effi ciency.