www.pudn.com > Nethief.rar > Md5.h

// Md5.h: interface for the CMd5 class. 
// 
////////////////////////////////////////////////////////////////////// 
 
#if !defined(AFX_MD5_H__7F117010_0179_4DB4_8908_E746E919E0C4__INCLUDED_) 
#define AFX_MD5_H__7F117010_0179_4DB4_8908_E746E919E0C4__INCLUDED_ 
 
#if _MSC_VER > 1000 
#pragma once 
#endif // _MSC_VER > 1000 
 
//类型定义//////////////////////////////////////////////////////////// 
/* POINTER 定义成一个普通的指针类型 */ 
typedef unsigned char *POINTER; 
 
/* UINT2 定义成两字节的字 */ 
typedef unsigned short int UINT2; 
 
/* UINT4定一成四字节的字  */ 
typedef unsigned long int UINT4; 
///////////////////////////////////// 
/* MD5 context. */ 
typedef struct  
{ 
  UINT4 state[4];			/* state (ABCD) */ 
  UINT4 count[2];			/* 位数量, 模 2^64 (低位在前) */ 
  unsigned char buffer[64]; /* 输入缓冲器 */ 
} MD5_CTX; 
///////////////////////////////////// 
/* Constants for MD5Transform routine.*/ 
#define S11 7 
#define S12 12 
#define S13 17 
#define S14 22 
#define S21 5 
#define S22 9 
#define S23 14 
#define S24 20 
#define S31 4 
#define S32 11 
#define S33 16 
#define S34 23 
#define S41 6 
#define S42 10 
#define S43 15 
#define S44 21 
 
 
/* F, G, H 和 I 是基本MD5函数 */ 
#define F(x, y, z) (((x) & (y)) | ((~x) & (z))) 
#define G(x, y, z) (((x) & (z)) | ((y) & (~z))) 
#define H(x, y, z) ((x) ^ (y) ^ (z)) 
#define I(x, y, z) ((y) ^ ((x) | (~z))) 
 
/* ROTATE_LEFT 将x循环左移n位 */ 
#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n)))) 
 
/* 循环从加法中分离出是为了防止重复计算*/ 
#define FF(a, b, c, d, x, s, ac) { \ 
 (a) += F ((b), (c), (d)) + (x) + (UINT4)(ac); \ 
 (a) = ROTATE_LEFT ((a), (s)); \ 
 (a) += (b); \ 
  } 
#define GG(a, b, c, d, x, s, ac) { \ 
 (a) += G ((b), (c), (d)) + (x) + (UINT4)(ac); \ 
 (a) = ROTATE_LEFT ((a), (s)); \ 
 (a) += (b); \ 
  } 
#define HH(a, b, c, d, x, s, ac) { \ 
 (a) += H ((b), (c), (d)) + (x) + (UINT4)(ac); \ 
 (a) = ROTATE_LEFT ((a), (s)); \ 
 (a) += (b); \ 
  } 
#define II(a, b, c, d, x, s, ac) { \ 
 (a) += I ((b), (c), (d)) + (x) + (UINT4)(ac); \ 
 (a) = ROTATE_LEFT ((a), (s)); \ 
 (a) += (b); \ 
  } 
////////////////////////////////////////////////////////////////////// 
 
class CMd5 
{ 
public: 
	CMd5(); 
	virtual ~CMd5(); 
 
	void GetMD5CheckSum(BYTE* pbyInput,UINT nInputLen,BYTE* pbyCheckSum); 
 
private: 
	void MD5Init(MD5_CTX*); 
	void MD5Update(MD5_CTX*,unsigned char*,unsigned int); 
	void MD5Final(unsigned char [16], MD5_CTX*); 
 
	void MD5Transform(UINT4 [4], unsigned char [64]); 
	void Encode(unsigned char *, UINT4 *, unsigned int); 
	void Decode(UINT4 *, unsigned char *, unsigned int); 
	void MD5_memcpy(POINTER, POINTER, unsigned int); 
	void MD5_memset(POINTER, int, unsigned int); 
 
	unsigned char PADDING[64]; 
}; 
 
#endif // !defined(AFX_MD5_H__7F117010_0179_4DB4_8908_E746E919E0C4__INCLUDED_)