That is pretty cool, and thanks for the detailed reply. Asking innocently, because I don't know much about this stuff and I'm lazy, but is it much more secure?

That is pretty cool, and thanks for the detailed reply. Asking innocently, because I don't know much about this stuff and I'm lazy, but is it much more secure? The thing I liked about the qwertycards is that there isn't a single point of failure. If somebody takes your card, you still know the secret, and that could be any number of characters you wanted it to be.