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 Oct 28, 2010 - 01:20 AM - by Michael
* Gummy Bear Attack

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PC Games/Hardware/Microsoft
This has to go into the all-time greats: soft candy defeats fingerprint scanners.

Principal Bob Cox told the ABC that the system was preferred over swipe cards, which students can abuse by signing-in for each other.

But a litany of fingerprint scanners have fallen victim to bypass methods, many of which are explained publicly in detail on the internet. The hacks could potentially be used by students to make replicas of their own fingerprints, or lift those of others from imprints left on the reader.

Japanese cryptographer Tsutomu Matsumoto used gelatin, the ingredient in Gummi Bears, to forge a replica finger that fooled 11 fingerprint scanners during tests in 2002. Gelatine has virtually the same capacitance as a finger's skin, meaning it can fool scanners designed to detect electrical charges within the human body.
Rather than admit he's an idiot, of course, the principal will now embark on an ambitious campaign to ban all gummi-snacks from the school.
 

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