How to set password on archive, using libarchive C++?

I started using libarchive library recently and I have a trouble. I can't set a password to my archive. I'm using following code, but password isn't sets:

void ArchiveFactory::OpenWrite(ArchiveWrite &archWrite,
std::unique_ptr<NativeStreamBase> &stream, OptionMap options)
{
    int ret = 0;
    auto hint = stream->GetFormatHint();
    archWrite.Arch = ArchiveWriteUnique(archive_write_new());
    archWrite.Writer = std::move(LibArchiveWriter(stream));

    auto finded = ArchiveFactory::WriteFormatHelpers.find(hint);

    if (finded != ArchiveFactory::WriteFormatHelpers.end())
    {
        auto &helper = finded->second;

        ret = helper.WriteFmtInit(archWrite.Arch.get());

        if (ret == ARCHIVE_OK && helper.CreateOptions != nullptr && helper.WriteFmtSetOpts != nullptr)
        {
            ret = helper.WriteFmtSetOpts(archWrite.Arch.get(), options);
        }
    }

    ret = archive_write_set_option(archWrite.Arch.get(), nullptr, "hdrcharset", "UTF-8");

    ret = archive_write_set_passphrase(archWrite.Arch.get(), "123456");

    ret = archive_write_open(archWrite.Arch.get(), &archWrite.Writer, nullptr, LibArchiveWriter::WriteCallback, nullptr);

    int stop = 423;
}