有关欧几里德的扩展算法，非常实用，经测试好用

c++的MD5类，简单好用，只需要包含进去，就能方便使用-c++ the MD5 class, easy-to-use, only need to include, we can facilitate the use of

加密的局域网聊天程序，采用RSA加密算法，可保证聊天的私密-Chat LAN encryption procedures, using the RSA encryption algorithm, can guarantee that the privacy Chat

对于这个问题的实现、刚刚给过一个程序，突然想起另外一种简单一些的方法，一并给出[笔者长期从事移动通信系统的无线链路调制与解调、物理层实现方面的工作。在移动通信GSM系统中，我们进行语音或者业务信道解调时，都会遇到CRC的求解。通常在硬件DSP实现时，特别是40位CRC求解时候，由于生成多项式有41项，DSP最大一次能处理40位，所以使用单个寄存器会遇到一些困难，那么以下这个程序将会解决这一困难（这是针对定点DSP、C55xx的编程实现方法）。]： -For the realization of this issue, just to have a program, suddenly reminded of another simpler way to be given [the author has long been engaged in mobile communication system modulation and demodulation of wireless links, the physical layer to achieve work. GSM in the mobile communications system, we have a voice or channel demodulation operations, it will encounter the solution of CRC. DSP hardware usually realize, especially when solving the 40 CRC, as the generation polynomial has 41, DSP can handle the largest 40, so using a single register may encounter some difficulties, then following this process will solve this One difficulty (which is for fixed-point DSP, C55xx realize programming methods). ]:

简单的文件加密程序，希望站长保留，一些小课程设计可以用-Simple file encryption program, owners want to retain some small curriculum design can be

数字水印技术的基本概念-A survey of Digital watermarking technique. It may an overview about watermarking.

CPU序列号和MAC地址获取函数,适用广泛-CPU serial number and MAC address access function, the application of broad

MD5算法的详细介绍，很容易理解，给人豁然开朗的感觉-MD5 algorithm is a detailed description, it is easy to understand, gives a clear insight into feelings

VIGENERE是法国的密码专家，以他明命名的密码是一种典型的多表密码！他的加密脱密可以通过文明维吉利亚方阵解决！-VIGENERE French cryptologist, with his name out the password is a typical multi-table password! From his secret encryption can solve civilization faces phalanx!

多种加密的算法的集合，有DES，RSA等等，有的是用C写的，也用是用VC++写的。很实用！-variety of encryption algorithms to assemble, DES, RSA, etc., some written in C, is also used to write the VC. Very practical!

这是一个获取ACCESS 数据库密码的强悍软件, 适用于ACCESS2-This a password access to the Access database software intrepid apply to ACCESS2