加密算法，java上的加密算法，对大家应该用帮助的一个加密算法。...

利用DELPHI的INDY来快速制作MD5加密的演示-DELPHI the INDY use to quickly create MD5 encryption demonstration

3des 加密,可以进行3des,des等其他基本加密算法-3des

参考了电脑爱好者2000第10期的一篇关于将文件隐藏于位图中的文章，本程序还有许多可以改进的地方，例如可以加入CRC校验，加密,多线程等内容。-reference to the 2000 resolution computer enthusiasts 10 of a document on Bitmap hidden in the article, there are many procedures can be improved, for example, can join the CRC, encryption, such as multithreading.

提供服务端登陆验证程序（验证码随机改变，防止非法进入）； 提供服务器控制程序，管理员可以允许、屏蔽和删除一个注册用户的登陆客户端； 任何改变访问地点的行为，都必须得到管理员的授权，否则无法登陆系统； 即使知道其他用户的密码也不能登陆系统。-provide certification services-landing procedures (Random Verification code change to prevent illegal entry); Provide server control procedures, administrators can allow, shielding and delete a user"s landing client; Any change in location of the visit have to be authorized administrators, whether while not landing systems; even if they know the password for other users can not landing system.

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

Xnova a-Xnova add

这是一个霍夫曼编码程序-This is a Huffman code program

The Cryptography API: Next Generation(CNG) is a new and agile framework in Windows Vista, which implements an extensible provider model that allows you to load a provider by specifying the required cryptographic algorithm rather than having to hardcode a specific provider. -The Cryptography API: Next Generation (CNG) is a new and agile framework in Windows Vista, which implements an extensible provider model that allows you to load a provider by specifying the required cryptographic algorithm rather than having to hardcode a specific provider.

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

Converst a bit array into a single byte and vice versa