Playfair

黑客、反黑客技术的入门教材，加密解密算法的基础知识。 (Hackers, anti-hacking technology entry materials, encryption and decryption algorithms basics.)

一个用BCB写的壳！-with BCB was a shell!

智能卡示例程序。。。。。。。。。。

SFTP即加密文件传输协议(Secure file transfer protocol) ，与FTP不同的是，指令与数据在传输过程中都是经过加密的，防止在网络传输过程中密码和敏感信息被盗取。为了使用.Net来实现这一过程： 1.安装SFTP Server测试环境： 下载setupssh.exe 在服务器上按照提示安装setupssh.exe 打开一个命令行，找到OpenSSH目录（默认：C:Program FilesOpenSSH） 创建Group mkgroup -l >> .etcgroup 创建User mkpasswd -l >> .etcpasswd 注:创建group和User请参考安装目录的readme.txt 2.下载SampleCode 3.新建一个工程，引用SampleCode中的Tamir.sharpSsh.dll，Org.Mentalis.Security.dll，DiffieHellman.dll (SFTP that encrypted file transfer protocol (Secure file Transfer protocol) and FTP, the instruction and data during transmission are encrypted, preventing passwords and sensitive information was stolen during a network transfer. In order to use NET to implement this process: 1. Install SFTP Server test environment: Download setupssh.exe on the server, follow the prompts to install setupssh.exe open a command line, find the OpenSSH directory (default: C: Program Files OpenSSH) The create Group mkgroup-l > > . etcgroup create the User mkpasswd-l > > . etcpasswd Note: Create the group and User Please refer to the installation directory of readme.txt 2 downloads SampleCode create a new project, to reference SampleCode Tamir.sharpSsh. dll, Org.Mentalis.Security.dll, DiffieHellman.dll)

一个用移位思想实现的简单数据加密程序，因为不论是大写还是小写字母,其ASC码值都是按顺序排列的.故可以用相对应的ASC码值进行判断以及算法实现.-a shift ideology with a simple data encryption procedures, because both uppercase or lowercase letters, the value of ASC codes are arranged in chronological order according to the. It can be used to be the relative value of ASC code of judgment and algorithm.

这是RC5算法的ASM实现，效率很高，可以直接用到工程中去-This is the RC5 algorithm ASM realization of very efficient and can be used directly on projects to

基于混沌同步的图像加密一的方法 完美加密(Chaos synchronization of image encryption method based on a perfect encryption)

DIAMOND2加密算法的原代码-DIAMOND2 encryption algorithm source code

著名的解Unix密码的源程序 -The source for cracking unix password

一个Lorenz混沌系统代码，可供学习研究混沌系统的参考，对图像做加密解密处理。(A Lorenz chaotic system code available for study and research of chaotic systems reference on the image to do encryption and decryption processing.)