My stuff is aimed at teaching, not efficiency. The others are probably much bett...

简单的密码例子，让密码储存在程序中 简单的密码例子，让密码储存在程序中-simple code example, passwords stored in the process simple code example, the password stored procedures

防止用DeDe软件反编译delphi程序-preventing anti-software compiler delphi procedures

C++写的md5算法实现，喜欢的拿去吧，哈哈~-Writing C++ implementation of md5 algorithm, like take it, haha ~

加密之星(袖珍版)源代码Visual C++源代码-encryption Star (pocket edition) source code Visual C source code

COBRA cipher algorithm example.

一个可以实际编译运行的 MD5算法原代码，含main调试程序。-A MD5 Source Code which can be run after translation and edition. It contains main debug program.

ssl implementation（delphi）-ssl implementation (delphi)

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

This program is free software you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.-This program is free software you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

DES加密类，可以自定义key，可以更改IP置换表-DES encryption type, you can customize the key, you can change the IP permutation table