MD5 - different results

[gabbana]

Hy, I have my next problem. I am trying to get an md5 hash from an string (i am using "hello" in this example) The problem is, that the CryptoAPI gives me a different key than the md5 function from PHP. I think MD5 is MD5 so both should give me the same result. Here is my Code for the crypto api -> error() only shows Error Nr.: id as a small help for me. The ByteToStr function is the same ByteToStr function which is in the MSDN.

HCRYPTPROV	hProv	= NULL;
HCRYPTHASH	hHash	= NULL;
BYTE	\*pbKey	=  (BYTE\*)"hello";
DWORD	dwKeyLen	= strlen((char\*)pbKey)+1;
DWORD	dwHashLen	= 0;
BYTE	pbOut\[16\];

if(!CryptAcquireContext(&hProv,NULL,NULL,PROV\_RSA\_FULL,0))	Error(1);
if(!CryptCreateHash(hProv,CALG\_MD5,0,0,&hHash)) Error(2);
if(!CryptHashData(hHash,pbKey,dwKeyLen,0)) Error(3);
if(!CryptGetHashParam(hHash,HP\_HASHVAL,NULL,&dwHashLen,0)) Error(4);
if(!CryptGetHashParam(hHash,HP\_HASHVAL,pbOut,&dwHashLen,0)) Error(5);


LPCSTR lpMsg = new char\[100\];

ByteToStr(dwHashLen,&pbOut,(LPSTR)lpMsg);

MessageBoxA(NULL,lpMsg,"hihi",0);

delete lpMsg;
CryptDestroyHash(hHash);
CryptReleaseContext(hProv,0);

Thanks for help. bye, gabbana

[Stuart Dootson]

gabbana wrote:

DWORD dwKeyLen = strlen((char*)pbKey)+1;

Ummmm - is the PHP MD5 algorithm including a NULL terminator byte? Do PHP strings even have NULL terminators? I doubt it very much... If removing the NULL terminator doesn't fix it, one other thing to consider is whether or not PHP strings are ASCII or some form of multi-byte Unicode?

[gabbana]

wow, Thank you. It was the null terminator.