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

用C++实现的维吉尼亚密码源程序,已经在DevC++上测试过，大家可以再进行功能完善-With C++ Achievable Virginia password source, has been DevC++ Tested, we can further improve the function

用MFC实现的对任意长度的文件的MD5加密，得到的是标准的32位十六进制数-Using MFC to achieve for any length of document MD5 encryption, receive the standard 32-bit hexadecimal number

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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.

基于8位密码，每位密码值范围为5秒，连续三次键入错误报警1秒的开锁提示音；(5)密码设定完毕后有5秒内未进入，自动锁闭。LED输出模块，数码管（

加密、安全、压缩处理，实例，有爱好者可以学习-Encryption, security, compression treatment, examples have lovers can learn

针对JPEG2000格式的图像，利用了Arnold变换对图像的小波系数进行加密，对初步研究JPEG2000图像加密算法的有试用价值-JPEG2000 image format for the use of the Arnold transform the image of the wavelet coefficients encryption, preliminary study of the JPEG2000 image encryption algorithms have tested the value of

密码大家Shoup写的数论算法c语言实现,windows版本-password you write the number theory algorithm c language, windows version

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). ]:

MD5的c/c++的一个实现范例,包含MD5开发包-MD5 of c/c++ Realize a sample, including MD5 Development Kit