chaos_communication1

本代码实现了维吉尼亚密码，维吉尼亚密码是基于简单的凯撒密码改进而来的多表替换密码，代码简单，供交流学习使用。

数据加密技术之几种算法 sa-faq-1-data encryption technology several algorithms rsa- faq-1

根据JPEG2000格式的特性，改变在其算术编码时采用的概率状态迁移表可达到加密图像的效果-According to the characteristics of JPEG2000 format change in its arithmetic coding used in the probability of state migration table can achieve the effect of encrypted image

一种通过判断网卡地址来控制软件使用期限的算法，简单有效。-Address of a card through the control software to determine the use of time algorithms, simple and effective.

一个小的网页加密器-a small website encoder

3des加密算法实现，经过FPGA验证的！-3des encryption algorithm, after FPGA validation!

(1). 复习AES原理。 (2). 用C/C++编写AES算法并调试通过。 (3). 复习CMAC原理。 (4). 在实现AES基础上，用C/C++编写CMAC算法并调试通过。 (5). 回答下列思考题。  AES解密算法和AES的逆算法之间有什么不同？  CMAC与HMAC相比，有什么优点？ ((1). Review AES works. (2) with C/C++ write and debug via the AES algorithm. (3) review CMAC principle. (4) on the basis of achieving AES using C/C++ CMAC algorithm written and debugged. (5) Answer the following Questions.  What is the difference between AES and AES decryption algorithm inverse algorithm?  CMAC compared with HMAC, what are the advantages?)

DES加密的MFC实现,主要包括两部分组成，有字符串加密和文件加密两种模式，实现了3DES功能，让加密更安全(including string and files by DES)

线性移位寄存器是流密码的重要组成部分，该程序就是实现该方法。- The linearity shift register is the stream cipher important constituent, this procedure realizes this method.

shiftcipher加密解密算法实例 使用shiftcipher算法加密字符串 可输入任意密钥(shiftcipher examples of encryption and decryption algorithms String encryption algorithm using the shiftcipher Can enter any key)