4 ms·I've seen business cards with PGP fingerprints encoded as QR codes. That's a pretty neat idea.by bostik 12y agoI've seen business cards with PGP fingerprints encoded as QR codes. That's a pretty neat idea.nodata 12y agoExcept you never notice when someone switches the QR code, as Tomte says.bostik 12y agoWhich is a very good point indeed.