【摘要】 提出了一种电视加、解扰中密钥产生、传输和分配的密钥管理方法 .其中加密算法采用与传统DES算法兼容、普通单片机即可实现的FEAL 8快速加密算法 .给出了相应密钥破译工作量的估量和该密钥管理方法抗攻击性能的分析 .估量和分析表明该方法具有运算速度快、安全性高和成本低的特点 ,因而比其他方法更为有效和实用更多还原

【Abstract】 A key management method of key producing, key transmission and key assignment on TV scrambling/unscrambling is proposed, and the realization based on FEAL 8 encryption algorithm is described. The new method allows single chip processor to be applied to realize TV scrambling/unscrambling. The analysis results of the security degree shows that the method is more effective and practical because of its characteristic of high speed, high security degree and low cost than other ones.更多还原