// code placeholder
TestResult calc_qt_sha3_256(char const* data, int len)
{
    QTime t1 = QTime::currentTime();
    QCryptographicHash hash(QCryptographicHash::Sha3_256);
    hash.addData(data, len);
    QTime t2 = QTime::currentTime();
    TestResult res;
    res.sha = hash.result().toHex().toUpper();
    res.length = len;
    res.time = t1.msecsTo(t2);
    return res;
}