另一种公开密钥加密算法的Pascal实现和例子。实现了签名和确认...

简单的文件加密代码 一个不错的文件加密系统，对你工作的安全大大加强。-simple file encryption code a good file encryption system, you have the right security greatly enhanced.

要在最低visual studio 2005的版本下运行，在运行后出现的对话框中输入密码就可以在下面的对话框中加密你想要加密的内容，可以保存加密后的内容，也可以观看加密后的内容。-To the minimum version of visual studio 2005 run, after running the dialog box that appears, type the password in the following dialog box encryption you want to encrypt the content can be saved encrypted content, but also be able to watch encrypted内容.

Base64编码与解码，MD5加密源码 DEMO-Base64 encoding and decoding, MD5 encryption source DEMO

这个源程序向你介绍了怎样摆脱密码束缚的问题-the source to tell you how to shake off the shackles of password problems

has160哈希函数。用散列的方法将明文处理达到加密的效果。

one of example about hardware design language

DVD解码源代码 -This is a DVD decryption source program.

实现移位密码（扩展凯撒密码），用键盘接收明文和密钥，屏幕打印密文。-Achieve translocation password (Extension Caesar password), use the keyboard to receive explicit and key, screen printing ciphertext.

简单的 密码问题 初学者-simple passwords for beginners

对于密码学感兴趣的读者适合，当然要求一定的基础-for cryptography for interested readers, of course, requires a certain basis