transpositioncipher

本文件实现的是对水印的加密及解密，有3种方式，猫脸变换，混沌置乱和zigzag置乱。(The file contains sseveral functions, which can encrypt and decrypt the watermark,including Arnold Transform,chaotic and zigzag. )

利用PGP加密技术保护电子邮件安全,很不错的-The use of PGP encryption technology to protect e-mail security, very good

计算卡片过程密钥，加密密码数据，计算安全报文鉴别（MAC）过程密钥 (Calculating card key, the encrypted password data, calculate the safety message authentication (MAC) key)

一个完整的des演示程序 ，在linux下编译通过-Des a complete demonstration of the procedures adopted in the compiler under linux

快速去除PDF密码设置，不用安装，直接使用-Quick removal of PDF password settings, do not need to install, direct use

这是离散分数傅里叶，传输2D的图像加密解密，还有密钥的加密解密(This is the discrete fractional Fourier, transmission 2D image encryption, as well as the encryption key to decrypt)

AES加解密C语言源代码，可直接运行通过，方便大家借鉴学习(AES encryption and decryption of C language source code, can be directly run by, we facilitate learning from)

a visual basic agai-a visual basic againnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn

DES 实现 包括 纯DES 3DES 和 CBC-DES achieve pure including 3DES and DES CBC

MD5Win-MD5文本密码生成-MD5Win-MD5 text password generation