CRC32检查

DES加密算法的实现和演示，具体算法见网上，程序中有注释-DES encryption algorithm and demonstrate the achievement of the specific algorithm see online, proceedings have Notes

　使用cryptapi加密的demo程序-cryptapi use encryption procedures demo

AES Rijndael fast security system to encrypt and deycrypt information

对软件进行加密限制，以防止末经诃可的随意拷贝-right software encryption restrictions to prevent the end by sending copies to be arbitrary

有些还是很有用的，网络验证经常能用到的，直接将cpp文件加入到工程里就可以了---Can realize analog keyboard, driver class. Like an ordinary keyboard can be used

加密算法tea加密文件，用vc语言编写，支持多种格式-encrpyt file by tea arithmetic,support some kinds of file format,VC Code

JAVA密码保护页面,可以保护你不让想看的人，设置简单-JAVA password-protected pages, and can protect you from those who want to set up a simple

JAVA的加密源程序，DES等加密算法-JAVA encryption source, such as DES encryption algorithm

用java实现的sha1加密算法，格式非常规范，标准的一个程序，注释很详细^_^-used to achieve the sha1 encryption algorithm, a very standardized format, a standard procedure, very detailed notes ^ _ ^

MIME base64 简单的编解码,主要用于学习之用-A simple MIME base64 encoding and decoding.