麻烦高人帮我翻译下这点文字。(英语)
来源:百度知道 编辑:UC知道 时间:2024/05/03 03:02:27
DES加密是一种经典加密方法,要研究其替代算法,对于DES的分析必不可少,本文首先详细分析了DES算法的原理,并且分析其存在的问题和加密强度,经过分析得出密钥太短是它的主要弱点。对于其弱点进行分析,并且在不抛弃前人智慧结晶的基础上设计出新的加密手段,即三重DES加密,通过加密-解密-加密的三重加密手段使得其密钥由原来的56位变为168位,增加了其密钥的强度,完美解决了DES的弱点问题,作为DES的替代算法可以继续胜任DES的任务。
本文在在后期对三重DES的实现方法进行了介绍,并且通过C++代码实现了三重DES,随后对三重的DES加密强度进行了详细分析,得出破解三重DES的难度基本为不可能,得出了三重DES完全可以替代DES的加密工作的结论。
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