Researchers: Cheap Scanners Can 'fingerprint' Paper
Mon, Mar 9th, 2009
Think two blank sheets of paper are the same? Look closer.
Researchers at Princeton University and University College London say they can identify unique information, essentially like a fingerprint, from any sheet of paper using any reasonably good scanner. The technique could be used to crack down on counterfeiting or even keep track of confidential documents. The researchers' paper on the finding is set to be presented at an IEEE (Institute of Electrical and Electronics Engineers) security conference in Oakland, California, next May.
Read the whole story on PC World
