Fingerprinting Computer Chips
Can't touch this Tiny manufacturing flaws on the atomic level might cause most companies to throw up their hands, but MIT-spinoff Verayo saw them as the key to creating the perfect anti-counterfeiting tags for everything from Walmart DVD shipments to futuristic passports. The company's radio frequency identification (RFID) tags rely upon no two chip being exactly alike on the atomic level, Technology Review reports. Miniscule flaws because of a slightly thicker or thinner wire can mean tiny variations in how fast a circuit works on a chip. Srini Devadas, an electrical engineer at MIT and Verayo founder, saw that as as the key to creating physically unclonable devices. Devadas realized that running a series of signals through the imperfect circuits can create a string of numbers unique to each circuit. The string of numbers became the basis for a whole series of mathematical equations that create many challenge and response pairs unique to the security of each chip. That means a forger can't hop
Fingerprinting Computer Chips
Verayo is harnessing unique manufacturing flaws to make RFID tags that are impossible to copy. A company that relies on atomic-level flaws in computer chips to tell one chip from another says ...
Fri 12 Mar 10 from MIT Technology Review
Tiny Flaws Can Be Tracked to Make Mass-Produced RFID Tags Unique and Unclonable
Can't touch this Tiny manufacturing flaws on the atomic level might cause most companies to throw up their hands, but MIT-spinoff Verayo saw them as the key to creating the perfect anti-counterfeiting ...
Fri 12 Mar 10 from Popular Science
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