qq_tea.h

QQ的TEA加密算法,有要的可以下下来玩玩!

/**********************************************************
   TEA - Tiny Encryption Algorithm
   Feistel cipher by David Wheeler & Roger M. Needham
   (extended version)
 **********************************************************/
#ifndef QQ_TEA_H
#define QQ_TEA_H

#define ROUNDS 16
#define DELTA 0x9e3779b9 /* sqr(5)-1 * 2^31 */

#include "malloc.h"
#include "memory.h"
#include "stdio.h"
#include "stdlib.h"
#include "time.h"

typedef unsigned long dword;
typedef unsigned char BYTE;

void enc_block(dword *v, dword *k, dword *out);
void dec_block(dword *v, dword *k, dword *out);
void encrypt(BYTE *pPlainData, dword len, dword *pKey, BYTE *&pCryptData);
void decrypt(BYTE *pCryptData, dword len, BYTE *pKey, BYTE *&pPlainData);

#endif