House of Hackers

Creegan 11.9

Reconsidering Physical Key Secrecy: Teleduplication via Optical Decoding


Our SNEAKEY system correctly decoded the keys shown in the above image that was taken from the rooftop of a four floor building. The inlay shows the image that was used for decoding while the background provides a context for the extreme distances that our system can operate from. In this case the image was taken from 195 feet. This demonstration shows that a motivated attacker can covertly steal a victim's keys without fear of detection. The SNEAKEY system provides a compelling example of how digital computing techniques can breach the security of even physical analog systems in the real-world.

Abstract
The access control provided by a physical lock is based on the assumption that the information content of the corresponding key is private --- that duplication should require either possession of the key or a priori knowledge of how it was cut. However, the ever-increasing capabilities and prevalence of digital imaging technologies present a fundamental challenge to this privacy assumption. Using modest imaging equipment and standard computer vision algorithms, we demonstrate the effectiveness of physical key teleduplication --- extracting a key's complete and precise bitting code at a distance via optical decoding and then cutting precise duplicates. We describe our prototype system, Sneakey, and evaluate its effectiveness, in both laboratory and real-world settings, using the most popular residential key types in the U.S.


Citation
Benjamin Laxton, Kai Wang, and Stefan Savage
Reconsidering Physical Key Secrecy: Teleduplication via Optical Decoding.
ACM CCS 2008, Alexandria, VA, October 2008.

Paper
Paper pdf.

Tags: duplication, keys, robery, security, software

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7 Comments

Sc4Rzz. Comment by Sc4Rzz. on November 3, 2008 at 10:25pm
Woah. Very intresting.
I could REALLY use this.. Any idea if this is ever going to reach the community, and even open source?
Creegan 11.9 Comment by Creegan 11.9 on November 2, 2008 at 4:28am
jajajajajajajajajajajajaja, I just read your blog post xD
sew_nice0999 Comment by sew_nice0999 on November 2, 2008 at 2:41am
Great minds think alike Creegan
Creegan 11.9 Comment by Creegan 11.9 on October 31, 2008 at 2:42pm
oops, sorry, forgot about the image part.

Fixed
root Comment by root on October 31, 2008 at 1:38pm
>_> You should've put in the image ;D Anyway nice post, thank you!
Codejunky Comment by Codejunky on October 31, 2008 at 11:32am
Above image? Am I missin somethin? Nice post tho
snapcrackerz Comment by snapcrackerz on October 31, 2008 at 6:58am
Very interesting Creegan thanks for the share ;}

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