Today, Tim Weyrich, Adam Finkelstein, Nadia Heninger, J. Alex Halderman, Ed Felten and I released our study on Fingerprinting Blank Paper Using Commodity Scanners. This result shows that individual sheets of paper are identifiable by their unique surface texture. The uniqueness of a document’s surface texture is the result of a random deposit of paper fibers during the manufacturing process. By exploiting a property of desktop scanners we are able to accurately and consistently measure the surface texture of a document, extract a fingerprint.
Read More...