function SetupStore($location, $name, $mode)
{
    $store = new \CPStore();
    $store->Open($location, $name, $mode);
    return $store;
}

function SetupCertificates($location, $name, $mode)
{
    $store = SetupStore($location, $name, $mode);
    return $store->get_Certificates();
}

function SetupCertificate($location, $name, $mode,
                           $find_type, $query, $valid_only,
                           $number)
{
    $certs = SetupCertificates($location, $name, $mode);
    if ($find_type !== NULL)
    {
        $certs = $certs->Find($find_type, $query, $valid_only);
        if (is_string($certs))
            return $certs;
        else {
	        if (!$certs->Count()) { return null;}
            return $certs->Item($number);
        }
    }
    else
    {
        $cert = $certs->Item($number);
        return $cert;
    }
}
        $signedInfo = 'Подписываемые xml данные';

        $cert = SetupCertificate(CURRENT_USER_STORE, "My", STORE_OPEN_READ_ONLY, CERTIFICATE_FIND_SHA1_HASH, '7df8a66ceba7181c39704054d42b1d9f4d14c641', 0, 1);

	$hashedData = new CPHashedData();
	$hashedData->set_Algorithm(101); // 101 CADESCOM_HASH_ALGORITHM_CP_GOST_3411_2012_256
	$hashedData->set_DataEncoding(1); // 1 CADESCOM_BASE64_TO_BINARY
	$hashedData->Hash(base64_encode($signedInfo));
	$hashedData->SetHashValue($hashedData->get_Value());

	$rawSignature = new CPRawSignature();
	$signature = $rawSignature->SignHash($hashedData, $cert);

	echo "signature:\n";
	echo "$signature\n";
	$signature = base64_encode(hex2bin($signature));
	echo "$signature\n";

        // Подпись по шаблону
	$signer = new CPSigner();
	$signer->set_Certificate($cert);
	$signer->set_KeyPin('123');
	$signer->set_Options(2); // 2 CAPICOM_CERTIFICATE_INCLUDE_END_ENTITY_ONLY

	$sd = new \CPSignedXML();
	$sd->set_Content($xml);
	$sd->set_SignatureType(2); // 2 XML_SIGNATURE_TYPE_TEMPLATE
	$sm = $sd->Sign($signer,"");
	printf("Signature OLD is:\n");
	printf(htmlspecialchars($sm));  

$hashedData->SetHashValue($hashedData->get_Value());