Crypt Api创建随机数

BOOL CreateRandomNumber(PVOID lpBuffer, ULONG cbBuffer)
{
	BOOL bResult;

	bResult = FALSE;
	if ((lpBuffer != NULL) && (cbBuffer > 0))
	{
		HCRYPTPROV CryptContext;

		if (CryptAcquireContext(&CryptContext, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
		{
			bResult = CryptGenRandom(CryptContext, cbBuffer, (PBYTE)lpBuffer);
			CryptReleaseContext(CryptContext, 0);
		}
	}
	return bResult;
}