#define ALG_SID_GR3411 30
#define CALG_GR3411 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_GR3411)

	HCRYPTPROV hProv = 0;
	HCRYPTHASH hHash = 0;

	if(!CryptAcquireContext(&hProv, NULL, NULL, PROV_RSA_FULL, 0)) {
		std::cout << "cannot acquire context";
		return 0;
	}
	std::cout << "the context acquired" << std::endl;

	if(!CryptCreateHash(hProv, CALG_GR3411, 0, 0, &hHash))
	{
		std::cout << "cannot create hash" << std::endl;
		if (GetLastError() == NTE_BAD_ALGID) std::cout << "The Algid parameter specifies an algorithm that this CSP does not support." << std::endl;
	}
	else
	{
		std::cout << "the hash created" << std::endl;
	}

	if(hHash) 
	{
		CryptDestroyHash(hHash);
		std::cout << "the hash destroyed" << std::endl;
	}
	if(hProv) 
	{
		CryptReleaseContext(hProv,0);
		std::cout << "the context released" << std::endl;
	}

CryptAcquireContext(&hProv, NULL, L"Crypto-Pro GOST R 34.10-2001 Cryptographic Service Provider", 75, 0)