rc4加解密算法

RC4加解密算法的例程，用vs2005 C#实现，代码中有部分注释，外部有操作文档，唯一的不足是工程文件命名为RSA，但该例程实现的的确是RC4算法！-RC4 encryption algorithm routines, using vs2005 C# Realize, the code has some notes, have to operate outside the document, the only shortage is the project file named as RSA, but the routine realize the RC4 algorithm is indeed!