dct_2

说明：  一个三d加密图像程序，有点复杂，可以参考注释理解，希望有用。(A three-d the encrypted image program, is a little more complicated, you can refer to the Notes to understand, I hope useful.)

关于数字水印嵌入时处理水印的源代码，采用猫脸变换对水印图像进行预处理 -Be dealt with on the digital watermark embedding watermark source code, using a cat face on the watermark image pre-processing transformation

DES算法实现，非常有用，对于研究加密的朋友希望回有帮助-DES algorithm, very useful for research encryption friends want to return to help

提供rsa、 des、 md5等加密和hash算法-apply encryption and hash algorithm of RSA, DES and MD5 etc.

fastica算法的基本原理介绍，以及算法实现的具体参考步骤(fastica algorithm introduces the basic principles and steps of the algorithm to achieve the specific reference)

基于 xinlinx 写的DES加密算法，内涵test bench，加密解密都有(Xinlinx written based on the DES encryption algorithm, meaning test bench, both encryption and decryption)

SM2 签名 验签 C 语言实现来做到签名 验证签名 非常好的资源(SM2 signature verification C language implements very good resources for signing signature verification signatures)

自己写的AES加密算法,还比较简陋，仅供交流使用(Write your own AES encryption algorithm is relatively simple, using only the AC)

rsa算法实现，包含文档(The implement of RSA algorithm including document.)

生成大素数并检验以及生成RSA1024位公钥子程序，不使用库文件，源代码公开，清晰有注释-Generate large prime numbers and testing, and to generate RSA1024-bit public key subroutine, do not use library files, source code is open, clear and annotated