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#define WIN32_LEAN_AND_MEAN
#define _CRT_SECURE_NO_WARNINGS
#include <windows.h>
#include <wincrypt.h>
#include <stdio.h>
#include <stdlib.h>

char* GenericHash(unsigned int AlgId,char* Buffer, int lBuffer)
{
	HCRYPTPROV hProv; HCRYPTHASH hHash;
	BYTE* Hash; DWORD lHash, len;
	char* sHash; unsigned char i;

	if (CryptAcquireContext(&hProv,NULL,NULL,PROV_RSA_FULL,CRYPT_VERIFYCONTEXT | CRYPT_MACHINE_KEYSET))
	{
		if (CryptCreateHash(hProv,AlgId,0,0,&hHash))
		{
			if (CryptHashData(hHash,(BYTE*)Buffer,lBuffer,0))
			{
				if (CryptGetHashParam(hHash,HP_HASHSIZE,(BYTE*)&lHash,&len,0))
				{
					Hash = malloc(lHash);
					if (!Hash) return NULL;
					if (!CryptGetHashParam(hHash,HP_HASHVAL,Hash,&lHash,0))
					{
						free(Hash);
						return NULL;
					}
				}
			}
			else return NULL;
		}
		else return NULL;
	}
	else return NULL;

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

	sHash = malloc(lHash*2+1); memset(sHash,0,lHash*2+1);
	for (i = 0; i <= lHash-1; i++) sprintf(sHash+(i*2),"%02X",Hash[i]);
	free(Hash);
	return sHash;
}