Rijndael (AES) original small encryption algorithm implementation

des数据加密标准算法描述-des data encryption standard algorithm description

MIME(Quoted-Printable & Base64) 编码解码程序-MIME (Quoted-Printable Base64) codec procedures

用C写的DES加密的一个算法。是很不错的。-Using C written by a DES encryption algorithm. Is very good.

DES算法的标准-DES algorithm standard

一个完整的des演示程序 ，在linux下编译通过-Des a complete demonstration of the procedures adopted in the compiler under linux

cox方法展频水印matlab源码，对bitmap图像隐藏信息-frequency watermarking method Show Matlab source of bitmap images for hidden messages

应用背景此库是C语言编写的MD5加密源代码，包含MD5.c,MD5.h,简介txt文件MD5.txt及一个测试代码testmd5.c.代码在ubuntu12.04服务器版本成功测试通过。关键技术Message Digest Algorithm MD5（中文名为消息摘要算法第五版）为计算机安全领域广泛使用的一种散列函数，用以提供消息的完整性保护。该算法的文件号为RFC 1321（R.Rivest,MIT Laboratory for Computer Science and RSA Data Security Inc. April 1992）。

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this visual basic source code,perhaps usefull 4 you

一个简单的文件加密器-a simple file encryption device