3des-des

今天我们学习了des对称加密算法这是一个des算法的C++实现(This is a des !)

一个很好的使用 ROT13 算法加密和解密数据的算法(A good algorithm using ROT13 algorithm to encrypt and decrypt data)

一个用c编写的文件加密器，可以加密任何类型的文件，速度很快！for dos!-with a paper prepared by the encryption device that can encrypt any type of document, very fast! For dos!

des和rsa的算法演示文档 (des and rsa algorithm presentation)

网上收集的14种hash算法。希望对大家有用。(14 kinds of hash algorithm online collection)

IBE基于身份的加密系统的系统叁数程序，使用VC6.0开发(IBE identity-based encryption system of systems Triple the number of procedures, the use of VC6.0 Development)

des加密算法的c程序实现，能够加密8位明文，经测试通过编译。-des encryption algorithm c Program to express encryption eight, the test compiler.

置换代换密码体制的S-P盒的发生器，能随机产生S盒和P盒，用于置换代换密码体制的加密解密(replacement substitution Cryptosystem S-P boxes of generators, can generate random boxes S and P boxes for the replacement substitution Cryptosystem encryption and decryption)

Universal De-embedding Procedure

首先对字母进行编号，小写字母a至z编号为1至26，大写字母A至Z分别编号27至52，这样每个字母都有唯一的一个序号，在发送内容时，我们以函数F(X)=X*X+X+1对发送字母的序号进行计算，就会获取个新的序号，对该序号再进行对52取余，该序号即为加密后的要发送字母的序号，这样就能达到加密的作用。(Number first letter lowercase letters a to z No. 1-26, No. 27-52 uppercase letters A to Z, respectively, so each letter has a unique serial number, sending content to the function F (X- ) = X* X+X+1 send letters number is calculated, it will get a new serial number, the serial number and then take the remainder of the 52, the serial number is the serial number of the letters to be sent encrypted, so that we can achieve encryption role.)