一个通过控制系统时间来达到限制软件使用期限的算法程序

here is code about aes code for u to understand what the aes is talking about-here is code about aes code for u to understand what the aes is talking about..........

base64的解码Ｃ语言实现-base64 decoding C Language

Base64算法C++实现 Base64算法C++实现-Base64 algorithm C++ Achieve Base64 algorithm C++ Achieve

aes的原代码，在ＶＣ＋＋的环境下运行．-Orangk"aes the original code in VC++ environment operation.

RC5算法的C++实现-RC5 algorithm to achieve C

UNICODE编码介绍-coding introduced UNICODE

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 the MFC and to provide a detailed error handling function, is a type of security. MD5 is a routine procedure of MFC, and documentation to support two types of input string

RSA的加密代码，含MFC界面，功能强大，可支持任意长度密钥。-RSA" s encryption code with MFC interface, powerful, can support an arbitrary length of the key.

c加密算法，比较实用的一程序，在别人那拷的.-c encryption algorithm, a more practical procedure, the copy of others.

使用openssl库，公钥对数据进行加密的dll库的源代码-Using openssl library, public key data encryption dll library source code