Base64的Decode和Encode

汇编内核的MD5算法C源码,核心运算部分采用汇编语言编写，执行高效。VC++环境开发，由于直接在C代码中直接嵌入汇编，因此可无须另外设置，可直接使用。

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

md5源程序文件2-md5 source files 2

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

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MD5加密,针对于一般的开发程序来使用,下载后可直接运行.-MD5 encryption, the response to the general development of procedures to use, can be downloaded directly operation.

RSA-1.02VERSION

本软件是根据DES加密算法，编成的应用程序。-software is based on the DES encryption algorithm into the application.

2的16次幂正整数d与n，编写计算d-1 (mod n) 的程序； 2、对于三个不超过2的16次幂正整数a、e与n，编写计算ae (mod n) 的程序。 在上述程序基础上写出下列程序： （1） 对给定的10000以内数判定其是否为素数； （2） 进行ElGamal体制的加密与签名。 -two of 16 power-positive integer d and n, calculate the preparation of d-1 (mod n); 2. For not more than 2 3 16 Powers positive integers a, e and n, calculate the preparation ae (mod n) procedures. In the above procedure to write on the basis of the following procedures : (a) the right to 10,000 within a few judging whether a prime number; (2) ElGamal encryption and signature.

MD5简单版的杂凑函数；使用C++语言编写-MD5 Hash Function