Comment by WorldMaker
5 days ago
You can use it computer to computer, too, as long as the laptop has a camera to read QR codes.
In theory phones and watches could implement the other direction and generate the QR codes, there's just less pressure on the ecosystems to make that easy to do so it's not there in practice today.
In theory, I guess, but dragging a desktop to my laptop to log in is a bit much. We need a better solution for that.
The CTAP2 protocol has better alternatives, https://github.com/fmeum/WearAuthn is possible because we already can do better. I just hope it'll be implemented at some point (though, realistically, the future is phone-first, despite how much I dislike the implications that carries).