Well, the same happens to me with passwords which I don't use for a long time. You can use any file, even something you can quickly download from the Internet.

Well, the same happens to me with passwords which I don't use for a long time. You can use any file, even something you can quickly download from the Internet. Like the Windows 3.11 file manager icon or your favorite Linux torrent. Only the first 1024 bytes are used so be careful with file types which have a big header.