The source code of IDEA encryption algorithm

#包括；

pki资料，是希望入门pki的人的最好的参考资料-pki data entry pki is the best reference.

数字水印，用MATLAB制作的，还有一些叙述情况-Digital Watermarking using MATLAB produced, and some described the situation

ISGCSSecure增强Client/Server系统安全的控件。(源代码，需注册）价格：$799。工作在：CB1 CB3 D3 D4 D5。作者：Infinity Software Group--Control which uses ISGCSSecure to enhanced Client/Server system security .(with source codes,needing register) price:$799.works in:CB1 CB3 D3 D4 D5.author:Infinity Software Group

这是用C编写的文件合并与分割的源代码，还请各位指教。-This is the document prepared by C combined with the partition of the source code, also called upon to advise.

全功能的加密库，对称加密，非对称加密，单向加密，等待，最新版本-Full-featured encryption library, symmetric encryption, asymmetric encryption, one-way encryption, to wait, the latest version

DES算法的C语言实现，大家可以参考一下。-DES algorithm to achieve the C language, we can reference.

128位(或192或256bit该代码以128为例)的密钥长度和分组长度，数据分组（输入的明文），先进行逐比特异或（AddRoundKey） 运算。然后通过循环十次非线性代换（SubBytes）、行变换（ShiftRows）、列变换（MixColumns）、逐比特异或【最后一轮不进行列变换】 的过程，输出128位（或192或256bit）数据即是密文。这就是加密过程。之后进行之前的逆过程，即可得到明文，此为解密过程。

主要介绍算法的实现方式和流水线实现，而且有详细的原理介绍，推理，源码和仿真结果-The main way of introduction Algorithm and pipelining to achieve, but also has a detailed introduction of the principle, reasoning, source code and simulation results

解zip(V1.1)文件密码的程序源码- Solves zip (V1.1) the document password procedure source code