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AES算法主要包括三个方面：轮变化、轮数和密钥扩展。本文以128为例，介绍算法的基本原理；结合C语言，实现高级数据加密算法AES（AES-128）。-AES algorithm mainly includes three aspects: round of changes, round number and key expansion. In this paper, 128 for example, introduce the basic principles of algorithm combination of C language, the realization of advanced data encryption algorithm AES (AES-128).

这个是IDEA加密算法的源代码(C语言版本)-This is the IDEA encryption algorithm source code (C language version)

TableCrypt is a file encryption utility. The major difference with most file encryptors is that this program uses a generated table in combination with a password to encrypt a file. This way you need 2 variables to decrypt the file. This is how it works: Generate a 10kb table file and enter a password. The password is used to pick bytes from the table file which in their turn are used to encrypt the bytes of the inputfile with XOR encryption.

des加密　ElGamal算法既能用于数据加密也能用于数字签名，其安全性依赖于计算有限域上离散对数这一难题。 　　密钥对产生办法。首先选择一个素数p，两个随机数, g 和x，g, x

base64的编解码代码封装，很方便易用。-base64 codec code package, it is easy to use.

一个简单的加密算法Kaiser(C语言实现) -A simple encryption algorithm Kaiser (C language)

一些常用的方法，很不错的实例，可以拿来学习，很不错哟-Some commonly used method, it is a good example, can be used to study, very good yo

文件加密的过滤驱动程序，适用于大部分的文件加密软件-File Encryption filter driver, applies to most of the file encryption software

产生共享软件加密序列号的程序- Has the shareware encryption sequence number procedure

一个利用C语言来实现加密算法之DES算法的源码。-A source program of DES arithmetic using C .