its about new technque using stream cipher

密码生成器，很好用-password generator, a good use

一个加密机用来注册用的可以加进你自己的程序里可以试试挺部错的！-an encryption machine used for the registration can add your own procedures you can try Ting Ministry wrong!

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

des演示算法c＋＋实现-des algorithm demonstration implemented by C++

将其他文件隐藏在BMP图像中！好-other documents hidden in BMP image! Good

Openssl 0.9.8h 最新版OpenSSL -Openssl 0.9.8h the latest version of OpenSSL

它也可以用来解除Adobe Acrobat PDF文件密码的工具，它可以帮助解决加密PDF无法编辑和复制/打印的问题，支持所有版本的Acrobat加密(包含7.x)，也支持128位加密。 -It also can be used to lift the Adobe Acrobat PDF files password tool, it can help to solve encrypted PDF can not edit and copy/print the questions, and support all versions of Acrobat encryption (including 7.x), also supports 128-bit encryption.

This a good program to start with signal processing in matlab.This gives you basic idea about covolution algorithm.

MD5简单版的杂凑函数；使用C++语言编写-MD5 Hash Function

用C++写的Serv-U的加密算法，很有参考价值-C wrote Serv-U encryption algorithm, great reference value