我写的利用IDEA算法的加密程序，并含文件切割和合并功能。

Base64编码与解码，MD5加密源码 DEMO-Base64 encoding and decoding, MD5 encryption source DEMO

AES加密算法的VB实现，对字符串和文件都能加密。-AES encryption algorithm of the VB implementation, both the string and file encryption.

使用7Z开源代码，实现的自定义的压缩解压程序，可以和自己的程序组合，提高效率

The application wizard has created this CNGCryptFile application for you. This application not only demonstrates the basics of using the Microsoft Foundation Classes but is also a starting point for writing your application.

这是一个好用的MD5的C++类；这个类可以加在控制台 程序中也可用在MFC中， 并且提供了详细的错误处理 函数，是一个安全的类。例程是一个MD5的MFC程序， 支持字符串和文件两种输入。-This is an easy to use the MD5 of the C++ Category this category can be added to the console program can also be used in MFC, and it provides a detailed error handling function, is a safe type. MD5 is a routine procedure of MFC to support the two input strings and documents.

TTrialSoftware PRO是TTrialSoftware的增强版(源代码，需注册）控件价格：$35，源代码价格：275。工作在：CB5 D5。作者：Martin。-TTrialSoftware PRO is an enhanced version of TTrialSoftware (source code, to be registered) control Price: $ 35, the source code Price: 275. Working in: CB5 D5. Author: Martin.

turecrypt6.0版本的源码，关于这款加密软件毫无疑问是顶尖之作-turecrypt6.0 version of the source, with regard to this there is no doubt that encryption software for the top

MD5加密算法得VisualC＋＋6.0源程序，直接调用里面的函数即可-MD5 Encryption Algorithm in Visual C++ 6.0 source code, direct calls to the function can be

base64 算法，这是一个非常详细的编码和解码的过程-base64 algorithm, this is a very detailed process of encoding and decoding

SHA-2 的代码实现-SHA-2 source implementation