欢迎来到天天文库
浏览记录
ID:28578609
大小:55.20 KB
页数:3页
时间:2018-12-11
《初始置换和逆初始置换》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、初始置换和逆初始置换一实验目的学习DES加密过程,用代码实现其加密原理。二实验原理(1)初始置换IP58504234261810260524436282012462544638302214664564840322416857494133251791595143352719113615345372921135635547393123157考虑到下面64比特的输入M:M1M2M3M4M5M6M7M8M9M10M11M12M13M14M15M16M17M18M19M20M21M22M23M24M25M26M27M28M29M30M31M32M33M34M35M36M37M38M39M40M
2、41M42M43M44M45M46M47M48M49M50M51M52M53M54M55M56M57M58M59M60M61M62M63M64(2)逆初始置换IP40848165624643239747155523633138646145422623037545135321612936444125220602835343115119592734242105018582633141949175725
此文档下载收益归作者所有