[Cryptography] Of writing down passwords

[dan at geer.org]

John Gilmore writes:
 | > > The security you get with writing passwords down is inherently 
 | > > because it's physically written and kept in a physical location, not 
 | > > on some electronic medium that could be cracked.
 | > 
 | > Beware of cameras! Their resolution now is so good that an attacker 
 | > without physical access can steal all your passwords using the 
 | > reflection in your eyes.
 | 
 | Can you post a demo of that?
 | 
 | Many of us have seen the Blade Runner movie scene where a photo is
 | magnified to show who took it via a captured reflection.  But whenever
 | I've tried something similar, the pixels are just too big and they
 | fuzz out.  I wasn't aware that e.g. laptop/phone cameras had good
 | enough optics and resolution to use reflections from eyes or
 | eyeglasses to read handwriting that's out of view of the camera.


Lookup "PlaceRaider" -- it's three year old technolgy so project
yourself forward in time to the present...

--dan