help creating a license key from php

[samoht]

Hello all,

 

I have a client that designs software that wants to have my website generate a proper key code so that when users down load the software they can plug in the key I generate and email to them from the website and it will match what the software would have generated.

 

here is there code

// AccessKeyGenerator.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"

BOOL ComputeMD5(BYTE *bHash, char *pBuffer, unsigned int uLength)
{
HCRYPTPROV hCryptProvider;
    HCRYPTHASH hHash;

BOOL bResult = FALSE;
    
if (CryptAcquireContext(&hCryptProvider, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT | CRYPT_MACHINE_KEYSET))
{
	if (CryptCreateHash(hCryptProvider, CALG_MD5, 0, 0, &hHash))
	{
		if (CryptHashData(hHash, (BYTE*)pBuffer, uLength, 0))
		{
			DWORD dwHashLength = 16;

			if (CryptGetHashParam(hHash, HP_HASHVAL, bHash, &dwHashLength, 0))
				bResult = TRUE;
		}
		CryptDestroyHash(hHash);
	}
	CryptReleaseContext(hCryptProvider, 0);
}

return bResult;
}

unsigned int ComputeFoldedMD5(CString& strCheck)
{
CT2CA strAscii(strCheck);
BYTE bHash[16] = { 0 };

if (!ComputeMD5(bHash, strAscii, strlen(strAscii)))
	return 0;

unsigned int a = (bHash[0x0] << 24) | (bHash[0x1] << 16) | (bHash[0x2] <<  | bHash[0x3];
unsigned int b = (bHash[0x4] << 24) | (bHash[0x5] << 16) | (bHash[0x6] <<  | bHash[0x7];
unsigned int c = (bHash[0x8] << 24) | (bHash[0x9] << 16) | (bHash[0xA] <<  | bHash[0xB];
unsigned int d = (bHash[0xC] << 24) | (bHash[0xD] << 16) | (bHash[0xE] <<  | bHash[0xF];

return a ^ b ^ c ^ d;
}



/*
* Arguments are <login> <password> <day> <month> <year> <type>
*/

int _tmain(int argc, _TCHAR* argv[])
{
if (argc != 7)
{
	fprintf(stderr, "Usage: AccessKeyGenerator.exe login password day month year type\n");
	fprintf(stderr, "\n");
	fprintf(stderr, "       login              user name\n");
	fprintf(stderr, "       password           user password\n");
	fprintf(stderr, "       day, month, year   expiration date\n");
	fprintf(stderr, "       type               license type\n");
	fprintf(stderr, "                            STANDARD\n");
	fprintf(stderr, "                            ADVANCED\n");
	fprintf(stderr, "                            TRIAL\n");
	fprintf(stderr, "                            USB\n");
	exit(1);
}

CString strLogin = argv[1];
CString strPassword = argv[2];

unsigned int nDay = (unsigned int)_ttoi(argv[3]);
unsigned int nMonth = (unsigned int)_ttoi(argv[4]);
unsigned int nYear = (unsigned int)_ttoi(argv[5]);

unsigned int nType = 0;

if (!_tcsicmp(argv[6], _T("USB")))
	nType = 0;
else if (!_tcsicmp(argv[6], _T("TRIAL")))
	nType = 1;
else if (!_tcsicmp(argv[6], _T("STANDARD")))
	nType = 2;
else if (!_tcsicmp(argv[6], _T("ADVANCED")))
	nType = 3;

srand(time(NULL));

unsigned int nRandom = rand() & 0xFFFF;

// Compute hashes
unsigned int nLogin = ComputeFoldedMD5(strLogin);
unsigned int nPassword = ComputeFoldedMD5(strPassword);

// Combine date and flags
unsigned int nClearDate = (nType << 13) | ((nYear - 2000) << 9) | (nMonth << 5) | nDay;

// Obfuscate date data
unsigned int nDate = (nClearDate ^ nRandom) | (nRandom << 16);

// Create the check code
unsigned int nStep = nLogin ^ nPassword ^ nDate ^ 0x845E2F66;
unsigned int nUKey = (((nStep >> 28) & 0xF) << 12) |
					 (((nStep >> 20) & 0xF) <<   |
					 (((nStep >> 12) & 0xF) <<  4) |
					 (((nStep >>  4) & 0xF) <<  0);
unsigned int nVKey = (((nStep >> 24) & 0xF) << 12) |
					 (((nStep >> 16) & 0xF) <<   |
					 (((nStep >>   & 0xF) <<  4) |
					 (((nStep >>  0) & 0xF) <<  0);

unsigned int nCheck = ((nVKey << 16) | nUKey) ^ 0x98FE1A5B;

fprintf(stdout, "Expiration: %d-%d-%d\n", nDay, nMonth, nYear);
fprintf(stdout, "Salt: 0x%04x\n", nRandom);
fprintf(stdout, "Login: %S [0x%08x]\n", strLogin, nLogin);
fprintf(stdout, "Password: %S [0x%08x]\n", strPassword, nPassword);
fprintf(stdout, "Secret: 0x%08x [u=0x%04x v=0x%04x]\n", nCheck, nUKey, nVKey);
fprintf(stdout, "Key: %08x%08x%08x%08x\n", nLogin, nPassword, nDate, nCheck);

return 0;
}

 

I need to do the same thing in php but this is written in C++

 

anyone know how to help me with the conversion??

[samoht]

Ok,

 

This is the function that I got  - which seems to work  - but the key generation is not quite right?

Can anyone see what might be a problem??

 

public function getProductKey(  ){
	$data = $this->getLicenseData();

	$strLogin = $data['username'];
	$strPassword = $data['password'];

	/* get the type code */
	switch( strtoupper( $data['type'] ) ){
		case "BASIC":   //used to be USB - changed by Andy
			$nType = 0;
			break;
		case "TRIAL":
			$nType = 1;
			break;
		case "STANDARD":
			$nType = 2;
			break;
		case "ADVANCED":
			$nType = 3;
			break;
		default:
			return 0;
			break;
	}
	//$nType = 3;
	/* Convert date inputs to integer values */
	$nDay = date( 'd', $data['start_time'] );
	$nMonth = date( 'm',$data['start_time'] );
	$nYear = date( 'Y', $data['start_time'] );

	/* Generate a random number */	
	//$nRandom = $rand & OxFFFF;		
	$nRandom = 0x5045;		

	/* Generate hashes of login and password */
	$nLogin = $this->getFoldedMD5( trim($strLogin) );
	$nPassword = $this->getFoldedMD5( trim($strPassword) );

	/* Combine date and flags */
	$nClearDate = ($nType << 13) | (($nYear - 2000) << 9) | ($nMonth << 5) | $nDay;

	/* Obfuscate date data */
	$nDate = ($nClearDate ^ $nRandom) | ($nRandom << 16);

	/* Create the check code */
	//$nStep = $nLogin ^ $nPassword ^ $nDate ^ 0x845E2F66;
	$nStep = 0x6c0b277b ^ 0xaab8585f ^ $nDate ^ 0x845E2F66;
	$nUKey = ((($nStep >> 28) & 0xF) << 12) |
				((($nStep >> 20) & 0xF) <<   |
				((($nStep >> 12) & 0xF) <<  4) |
				((($nStep >>  4) & 0xF) <<  0);
	$nVKey = ((($nStep >> 24) & 0xF) << 12) |
				((($nStep >> 16) & 0xF) <<   |
				((($nStep >>   & 0xF) <<  4) |
				((($nStep >>  0) & 0xF) <<  0);

	$nCheck = (($nVKey << 16) | $nUKey) ^ 0x98FE1A5B;

	$key = sprintf("%08x%08x%08x%08x", $nLogin, $nPassword, $nDate, $nCheck);
	return $key;
}
static function getFoldedMD5( $word ){
	/* Convert string to ANSI */

	$bHash = md5( $word, TRUE );

	$a = ( (ord($bHash[0x0]) << 24) | (ord($bHash[0x1]) << 16) | (ord($bHash[0x2]) <<  | (ord($bHash[0x3])) );  
	$b = ( (ord($bHash[0x4]) << 24) | (ord($bHash[0x5]) << 16) | (ord($bHash[0x6]) <<  | (ord($bHash[0x7])) );
	$c = ( (ord($bHash[0x8]) << 24) | (ord($bHash[0x9]) << 16) | (ord($bHash[0xA]) <<  | (ord($bHash[0xB])) );
	$d = ( (ord($bHash[0xC]) << 24) | (ord($bHash[0xD]) << 16) | (ord($bHash[0xE]) <<  | (ord($bHash[0xF])) );

	return $a ^ $b ^ $c ^ $d;
}

 

the code looks similar to the c++ but it sees to be outputting a little different?