md5.h

序列号生成工具,使用MD5加密算法,生成程序的序列号,帮助程序员保护自己的产权.

// MD5.h: interface for the CMD5 class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_MD5_H__E5DFBFAF_215B_42EC_A325_3CBD573B4805__INCLUDED_)
#define AFX_MD5_H__E5DFBFAF_215B_42EC_A325_3CBD573B4805__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#include <iostream.h>


#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

#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 rotates x left n bits.
 */
#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n))))

/* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4.
Rotation is separate from addition to prevent recomputation.
 */
#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); \
  }

  
/* POINTER defines a generic pointer type */
typedef unsigned char *POINTER;
/* UINT2 defines a two byte word */
typedef unsigned short int UINT2;
/* UINT4 defines a four byte word */
typedef unsigned long int UINT4;

typedef struct {
  UINT4 state[4];                                   /* state (ABCD) */
  UINT4 count[2];        /* number of bits, modulo 2^64 (lsb first) */
  unsigned char buffer[64];                         /* input buffer */
} MD5_CTX;

static unsigned char PADDING[64] = {
  0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};



class CMD5  
{
public:
	CMD5();
	virtual ~CMD5();


	void MD5Init(MD5_CTX *);
    void MD5Update(MD5_CTX *, unsigned char *, unsigned int);
    void MD5Final(unsigned char [16], MD5_CTX *);
    void MD5Transform(UINT4 state[4],unsigned char block[64]);
    void Encode(unsigned char *output,UINT4 *input,unsigned int len);
    void Decode(UINT4 *output,unsigned char *input,unsigned int len);
    void MD5_memcpy(POINTER output,POINTER input,unsigned int len);
    void MD5_memset(POINTER output,int value,unsigned int len);
    char* MDString (char *string);
    CString MDFile(CString filename);
    char* hmac_md5(char* text,char*  key);
};

#endif // !defined(AFX_MD5_H__E5DFBFAF_215B_42EC_A325_3CBD573B4805__INCLUDED_)