Ed Felten and several colleagues have just finished a paper called "Fingerprinting Blank Paper Using Commodity Scanners" for the May, 2009 Proceedings of the IEEE Symposium on Security and Privacy. It details a mechanism for authenticating documents based on known characteristics of the paper stock and individual sheets they're printed on.
This paper presents a novel technique for authenticating physical documents based on random, naturally occurring imperfections in paper texture. We introduce a new method for measuring the three-dimensional surface of a page using only a commodity scanner and without modifying the document in any way. From this physical feature, we generate a concise fingerprint that uniquely identifies the document. Our technique is secure against counterfeiting and robust to harsh handling; it can be used even before any content is printed on a page. It has a wide range of applications, including detecting forged currency and tickets, authenticating passports, and halting counterfeit goods. Document identification could also be applied maliciously to de-anonymize printed surveys and to compromise the secrecy of paper ballots.
Fingerprinting Blank Paper Using Commodity Scanners
Last month, Israeli non-profit SpaceIL’s Beresheet probe made it to the lunar surface but sadly it wasn’t a soft landing. Beresheet was the first private attempt at a lunar landing and they got pretty damn close. A couple weeks after the crash, NASA’s Lunar Reconnaissance Orbiter orbited over the area and NASA has released images […]
CBD is definitely screaming up toward the peak of inflated expectations, but it's not pure grift: the actual molecule and the way it interacts with our bodies is pretty amazing.
Quantum Physics for Babies and Rocket Science for Babies are the kind of board books you’d find on a toddler’s shelf. They have stiff, tear-proof cardboard pages, simple illustrations, and minimal text. But they actually explain the subjects on a (very) high level. The author, Chris Ferrie, is a physicist and Senior Lecturer for Quantum […]
Kudos to those of us who have chosen a less wasteful third option to “paper or plastic” at the supermarket or club stores. Tote bags are reusable, but they can be a pain to tote around. Here’s an upgrade to that planet-saving measure. The Club Cart Lotus Trolley Bag is that rare tote you’ll want […]
Looking for a career in IT, gaming or software development? In the ever-changing world of the internet, versatility is your biggest asset. In other words, mastering Java might not cut it in an interview if you don’t know C#. However, there’s a bundle that covers the essentials in most any language. The Legendary Learn to […]
Getting a set of cookware that will outlast you is one of those signs you’ve truly grown up. It used to be easy to find durable materials that also cook well, but these days it can be hard to tell what’s quality and what brands are coasting by on a recognizable name. Well, there’s at […]