![]() ![]() (He uses a free-molding plastic used to make plastic molds, and is sold at hobby shops.) Then he pours liquid gelatin into the mold and lets it harden. First he takes a live finger and makes a plastic mold. Matsumoto uses gelatin, the stuff that Gummi Bears are made out of. Matsumoto, along with his students at the Yokohama National University, showed that they can be reliably fooled with a little ingenuity and $10 worth of household supplies. For years the companies selling these devices have claimed that they are very secure, and that it is almost impossible to fool them into accepting a fake finger as genuine. These are security systems that attempt to identify people based on their fingerprint. ![]() Tsutomu Matsumoto, a Japanese cryptographer, recently decided to look at biometric fingerprint devices.
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