An ethernet bridge / VPN program for windows

一种国际上通用的加密算法―DES算法的原理-a common encryption algorithms-DES algorithm Principle

PGP Components使用PGP算法的加密控件。(有源代码）工作在：D2 D3 D4 D5。作者：Michael in der Wiesche--Encryption control that PGP Components uses PGP arithmetic to realized.It works in D2 D3 D4 D5。author:Michael in der Wiesche

JAVA开发的，使用RSA,MD5开发的简单数字签名软件，可以用来对文件和消息做数字签名。 -JAVA development, the use of RSA, MD5 developed a simple digital signature software, can be used for documents and information to do a digital signature.

C_MD5 是一个用C写的标准MD5加密算法,使用简单，快速

UPX1.9源代码(一个加壳工具)-UPX1.9 source code (a shell tools )

Openssl的常用头文件，本人经常用，很不错的。-The daily head file of Openssl, I often use, it is very good.

硬盘保护锁,绝对经典，研究硬盘加密的不得不看呀-Hard drive protection locks, an absolute classic, researchers have looked hard disk encryption

这个是IDEA加密算法的源代码(C语言版本)-This is the IDEA encryption algorithm source code (C language version)

(C++)语言下文件输入输出函数的一些局限性 数据加密算法原理、实现-(C) language input and output file under some limitations function of data encryption algorithm theory, realization

md5算法是计算机密码学里经典的算法，实用价值很高，设计的关键在于随机数的产生，本程序采用传统的利用计算机时钟采集种子的办法生成随机数种子。-md5 password algorithm is computer science Lane classic algorithms, highly practical, design is the key to the selection of random numbers, the procedure using the traditional use of computer clock seed collection methods generate random number seed.