MD消息摘要程序，MD5以512位分组来处理输入的信息，且每一分组又被划分为16个32位子分组，经过了一系列的处理后，算法的输出由四个32位分组组成，将这四个3...

实现BASE64编码-achieve BASE64 encoding

测试对字符串的MD4。运行环境：vs2008 （注意选择“多字符”编译）-Testing of the string MD4. Operating environment: vs2008 (attention to the selection " multi-character" compilation)

一个sha 哈希密码支撑算法系列的程序 包括了sha1,sha256,sha384和sha512算法-a password support Hash Algorithm series of procedures including sha1, SHA256, SHA384 and SHA512 Algorithm

AES implementation in C++. Input: key file and the file for encryption Output: the crypted file.

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

这是很好的源代码，对于很多的童鞋来说是非常好的资料，而且程序简单易懂。本程序是在VISUAL C++6.0运行，不过在其他版本的软件上应该也可以运行。

加密系统使用维吉尼亚密码系统MATLAB界面编程，-Virginia password encryption system using MATLAB interface system programming,

A simple cpp program, that receives a file, does a bit-wise "not" for every character, and adds "not" to the extension. Repeated running does the same and removes the "not" from extension. This a "pseudo-encryption", but very useful to avoid automated filtering software. This way it is possible to send "exe" files (or anything else) without the emails being blocked... First - send the source code, have your (enlightened) recipient compile it, then send the "notted" file. The code is not very efficient though, I only had 30 minutes to invest... :)-A simple cpp program, that receives a file, does a bit-wise "not" for every character, and adds "not" to the extension. Repeated running does the same and removes the "not" from extension. This is a "pseudo-encryption", but very useful to avoid automated filtering software. This way it is possible to send "exe" files (or anything else) without the emails being blocked... First - send the source code, have your (enlightened) recipient co

大整数运算的实现-large integer arithmetic Implementation

DES加密算法的Visual C++实现-DES encryption algorithm Visual C++ Realize