Ujjlenyomatolvasok "megbizhatosaga"?

[Jozsef Baksay]

Az eredeti cikk: http://www.theregister.co.uk/content/55/25300.html

<idezet>
Gummi bears defeat fingerprint sensors
By John Leyden
Posted: 16/05/2002 at 12:29 GMT

A Japanese cryptographer has demonstrated how fingerprint recognition 
devices can be fooled using a combination of low cunning, cheap kitchen 
supplies and a digital camera.

First Tsutomu Matsumoto used gelatine (as found in Gummi Bears and other 
sweets) and a plastic mould to create a fake finger, which he found fooled 
fingerprint detectors four times out of five.

Flushed with his success, he took latent fingerprints from a glass, which 
he enhanced with a cyanoacrylate adhesive (super-glue fumes) and 
photographed with a digital camera. Using PhotoShop, he improved the 
contrast of the image and printed the fingerprint onto a transparency sheet.

Here comes the clever bit.

Matsumoto took a photo-sensitive printed-circuit board (which can be found 
in many electronic hobby shops) and used the fingerprint transparency to 
etch the fingerprint into the copper.

 From this he made a gelatine finger using the print on the PCB, using the 
same process as before. Again this fooled fingerprint detectors about 80 
per cent of the time.

Fingerprint biometric devices, which attempt to identify people on the 
basis of their fingerprint, are touted as highly secure and almost 
impossible to fool but Matsumoto's work calls this comforting notion into 
question. The equipment he used is neither particularly hi-tech, nor 
expensive and if Matsumoto can pull off the trick what would corporate 
espionage boffins be capable of?

Matsumoto tried these attacks against eleven commercially available 
fingerprint biometric systems, and was able to reliably fool all of them.

Noted cryptographer Bruce Schneier, the founder and CTO of Counterpane 
Internet Security, described Matsumoto's work as more than impressive.

"The results are enough to scrap the systems completely, and to send the 
various fingerprint biometric companies packing," said Schneier in 
yesterday's edition of his Crypto-Gram newsletter, which first publicised 
the issue.
</idezet>

Nem semmi!

Topy

PS:  Aztán majd jól felszökik a nyák és a maratóanyagok ára a nagy kereslet 
hatására :)))