std::wstring SecurityData::HashPassword(const std::wstring& pwd)
{
    const unsigned int seed = [&pwd]() {
        unsigned int seed = 0;
        for (int i = 1; i < pwd.size(); i += 2) {
            seed += (unsigned int)pwd[i] % 256;
        }
        return seed;
    }();

    std::srand(seed);

    const int key = (std::rand() % 256) + (std::rand() % 256) * (std::rand() % 256);

    // magic.size() % 2 must be 0
    std::wstring magic = L"12345678";

    for (int i = 0; i < magic.size() * sizeof(wchar_t) / sizeof(int); ++i) {
        int* begin_ptr = (int*) (&magic[0] + i * sizeof(int) / sizeof(wchar_t));
        *begin_ptr = *begin_ptr ^ key;
    }

    return magic;
}