循环异或

crytage and decryptage with rsa 64 bits

用VC编写的一个简单的文件加密的程序源代码-VC prepared by a simple document encryption source code

RSA公钥加密，用C实现，大家可以参考一下-RSA public key encryption, using C to achieve, we can refer to

Program In VB

这个是一个用汇编编写的查看PE文件有效性的程序，PE加载器需要做的事情之一。-err

PE程序加密壳源程序 -PE procedure encryption shell source program

Rijndael algorithm修正了CBC下BUG的版本(有源代码）工作在：D5。作者：Sergey Kirichenko。--Rijndael algorithm that has revised BUG version under CBC(with source code).It works in D5. author:Sergey Kirichenko。

Immobilizer decryot software

这是我上信息安全课做的作业，des的加密算法。-This is my lesson to do on information security operations, des encryption algorithm.

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). ]: