From Wired:
Researchers at the University of North Carolina have developed an experimental system of so-called "visual cryptography" designed to communicate secret messages to the wearer of an augmented reality headset. In the system they created and tested, information is encrypted in what look like random collections of black and white static. But when the recipient's augmented reality glasses overlay another random-seeming image over their vision, the two images combine to form a readable message.
That system could, for instance, allow someone to unscramble encrypted text in a way that couldn't be spied on by an over-the-shoulder snoop, since the text is never decrypted on the reader's screen. Or it could be used to overlay a keypad with randomized numbers onto an ATM's display, so that no one watching could learn the bank customer's PIN as they typed it. "When you overlay the secret visual share, only you can see the final message," says UNC researcher Sarah Andrabi, using the technical term "visual share" to refer to each of the two indecipherable images that add up to a message. "That secret is now only for the user's eye."
The original paper can be found on scribd.com.
Reminds you a bit of the glasses from They Live, don't they?
(Score: 2) by Urlax on Saturday August 22 2015, @07:57AM
The keypad idea is great. each time the button layout changes, so using the glasses only the wearer knows which button to press.
it seems redundant, connecting glasses to the ATM requires much more security than the 4 digit code itself.. (unless you allow every display to connect to the terminal without verification, and somehow limit to 1 connection).
although this can be solved with 1$ headphones and a jackplug. (which most ATMS already have.)
overlaying text onto a screen to combine into usefull words? why not skip the screen altogheter, and project all data on the headset?
(Score: 2) by davester666 on Saturday August 22 2015, @08:46AM
I know, just make one of the USB ports publicly accessible.