4 ms·

Can you expand?

• mafribe 13y ago
  Print an overlay that acts as a visual password. You put it on the phone screen. So you can read what's written, but an attacker who captures only phone data sees only gibberish. There are various practical issues. Maybe they can be overcome. If the overlay was generated on demand on the dongle, rather than printed, that could improve usability. https://en.wikipedia.org/wiki/Visual_cryptography https://en.wikipedia.org/wiki/Visual_cryptography