c加密算法，比较实用的一程序，在别人那拷的.

RC2算法源代码-RC2 algorithm source code

多数程序设计语言处理整数的能力是有限的，如C语言中，int类型数据范围是-32767----32767。实际问题的处理过程中往往涉及大整数的运算，如RSA加密算法要求至少64bit的整数，本程序是设计算法实现大整数的加减运算。-majority programming language processing is integral to the limited capacity, such as C language, int data type is the scope-32767---- 32767. Practical problems of the treatment process often involves large integer arithmetic, such as the RSA encryption algorithm requires at least 64-bit integers, the procedure is designed algorithm large integer addition and subtraction operations.

pgp 软件源代码-PGP source code

IDEA加密算法属于数据块加密算法(Block Cipher)类。IDEA使用长度为128bit的密钥，数据块大小为64bit。-IDEA encryption algorithm is data block encryption algorithm (Cipher Block) category. IDEA use of the length of the 128 bit key, the data block size for 64bit.

创建一个经过加密的软件系统信息文件，在软件启动时会校验这些信息，判断是授权用户在使用该软件。-create an encrypted document information system software, the software will start checking the information, and judgment is authorized users in the use of the software.

Crypton algorithm realization.

MD5加密算法源代码,个人感觉相当有学习的热的价值,希望大家共同学习,共同进步.-MD5 encryption algorithm source code, personal feeling quite hot the value of learning, I hope everyone learn together and seek common progress.

C#的排序大全源代码，有多种排序方法，对于程序开发可以直接使用。-C# ranking Daquan source code, a number of ranking methods for the development of procedures can be used directly.

一个比较简单的加密程序-a relatively simple encryption program

采用RCS做文件加密的源程序代码，VC环境。包含两个文件包，里面的Readme有详细介绍。-Using RCS to do file encryption source code, VC environment. Package consists of two documents, which detailed the Readme.