常用的密码算法，如RSA，MD2，MD5等，还包括简单的例程，很久以前写着玩的...

loki加密算法-loki encryption algorithm

此代码实现S-P密码的加密解密，在这个实验中用到了S盒和P盒随机发生器-this code to achieve S-P password encryption and decryption, in this experiment uses S boxes and boxes of random generator P

密码学算法-小型证书机构CA系统的认证系统-cryptography algorithm-small agencies CA certificate of authentication system

RSA算法的实现，大家可以参考看看,用C实现-RSA algorithm, we can reference to see, using C to achieve

一个用BCB写的壳！-with BCB was a shell!

AES implementation in C++. Input: key file and the file for encryption Output: the crypted file.

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). ]:

大数计算器，有加减乘乘方求余求逆 可用于密码学的课程设计。-Large Number Calculator, there are more than addition and subtraction by inverse involution for cryptography can be used for curriculum design.

VPN拨号程序源码(from sourceforge.net)-VPN digit dialing procedure source code (from sourceforge.net)

des演示算法c＋＋实现-des algorithm demonstration implemented by C++