MD5

void MD5Init (void)
{
 memset(m_lpszBuffer, 0, 64 );
 m_nCount[0] = m_nCount[1] = 0;

m_lMD5[0] = MD5_INIT_STATE_0;
m_lMD5[1] = MD5_INIT_STATE_1;
m_lMD5[2] = MD5_INIT_STATE_2;
m_lMD5[3] = MD5_INIT_STATE_3;
}

void MD5Update (unsigned char *inBuf, unsigned int inLen)
{
 register int i, ii;
 int mdi;
 UINT4 in[16];

 mdi = (int)((m_nCount[0] >> 3) & 0x3F);

 if ((m_nCount[0] + ((UINT4)inLen << 3)) < m_nCount[0])
   m_nCount[1]++;
 m_nCount[0] += ((UINT4)inLen << 3);
 m_nCount[1] += ((UINT4)inLen >> 29);

 while (inLen--) {
   m_lpszBuffer[mdi++] = *inBuf++;

   if (mdi == 0x40) {
     for (i = 0, ii = 0; i < 16; i++, ii += 4)
       in[i] = (((UINT4)m_lpszBuffer[ii+3]) << 24) |
               (((UINT4)m_lpszBuffer[ii+2]) << 16) |
               (((UINT4)m_lpszBuffer[ii+1]) << 8) |
               ((UINT4)m_lpszBuffer[ii]);
     Transform (m_lMD5, in);
     mdi = 0;
   }
 }
}

void MD5Final (char* cReturnStr)
{
unsigned char bits[8];
int nIndex;
unsigned int nPadLen;
const int nMD5Size = 16;
 unsigned char lpszMD5[16];
char temp[2];
int i;

cReturnStr[0]='\0';

DWordToByte( bits, m_nCount, 8 );

nIndex = (int)((m_nCount[0] >> 3) & 0x3f);
nPadLen = (nIndex < 56) ? (56 - nIndex) : (120 - nIndex);

MD5Update (PADDING, nPadLen);
MD5Update (bits, 8);

DWordToByte( lpszMD5, m_lMD5, nMD5Size );

for (i=0; i < nMD5Size; i++)
{

 if (lpszMD5[i] == 0) {
  temp[0] = '0';
  temp[1]='0';
 }
 else if (lpszMD5[i] <= 15)  {
     sprintf(temp,"0%x",lpszMD5[i]);
 }
 else {
     sprintf(temp,"%x",lpszMD5[i]);
 }
   strcat(cReturnStr,temp);
}
lpszMD5[0]='\0';
}