//?rc4.cpp?:?定義控制臺(tái)應(yīng)用程序的入口點(diǎn)。
//

#include?“stdafx.h“
#include???
#include???
#include???
#include???
#include???
??
using?namespace?std;??
??
/*函數(shù)聲明*/??
void?InitSbox（unsigned?char?sbox[]）;???
void?KeyExpansion（unsigned?char?key[]?char?*k?int?len）;??
void?UpsetSbox（unsigned?char?sbox[]?unsigned?char?key[]）;??
void?DataProcess（unsigned?char?sbox[]?FILE?*fp1?FILE?*fp2）;??
void?DataEncrypt（char?*k?unsigned?char?*key?unsigned?char?*sbox?FILE?*fp1?FILE?*fp2）;??
void?DataDecrypt（char?*k1?unsigned?char?*key?unsigned?char?*sbox?FILE?*fp1?FILE?*fp2）;??
??
/*初始化S盒*/??
void?InitSbox（unsigned?char?sbox[]）{??
????for（int?i?=?0;?i?}??
??
/*密鑰填充256數(shù)組*/??
void?KeyExpansion（unsigned?char?key[]