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
Here’s an interesting experiment: Using mouse-movement as a lie-detection technique. Cognitive psychologists and neuroscientists have long noted a big “tell” in human behavior: Crafting a lie takes more mental work than telling the truth. So one way to spot lies is to check someone’s reaction time. If they’re telling a lie, they’ll respond fractionally more […]
For €105, the delightful and enchanting silver Neuron Necklace is yours. Its just one of a number of clever items offered by science-inspired jewelry, which include brains, fetuses, spines and thyroid hormones. [Thanks, Heather!]
For more than a century there have been reports of a strange sea “monster” living in Loch Ness yet hard evidence is, er, lacking. Now, evolutionary biologist Neil Gemmell of the University of Otago is hoping that DNA testing could perhaps shed some light on what people claim is Nessie. For two weeks, Gemmell and […]
The workday is long, and inevitably, you’re going to find yourself needing to take a break from the daily grind. With Mini Materials Miniature Cinder Blocks, you can take some time for yourself and decompress by turning your desk into a miniature construction site. They’re available today in the Boing Boing Store for $22.49. Handmade […]
Handheld radios might seem a bit archaic, but in an emergency situation, few things will keep you as reliably connected to the outside world. This Emergency Multi-Function Radio & Flashlight takes the utility of the tried-and-true radio and combines it with a powerful flashlight and self-sufficient energy system. It’s available in the Boing Boing Store for […]
Few programming languages boast the versatility and user-friendliness of Python, which is why it’s the first language of choice for many aspiring programmers. Regardless of your experience level, you can take the first step to becoming Python-savvy with the Python 3 Bootcamp Bundle, available in the Boing Boing Store for $35 this week. Featuring more than […]