Title
Reconsidering physical key secrecy: teleduplication via optical decoding
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.
Year
DOI
Venue
2008
10.1145/1455770.1455830
ACM Conference on Computer and Communications Security
Keywords
Field
DocType
privacy assumption,corresponding key,physical lock,modest imaging equipment,access control,physical key secrecy,optical decoding,physical key teleduplication,precise bitting code,precise duplicate,digital imaging technology,popular residential key type,information content,keys,digital image,a priori knowledge,computer vision
Internet privacy,Physical security,Computer science,Computer security,Lock (computer science),A priori and a posteriori,Secrecy,Computer vision algorithms,Digital imaging,Access control,Decoding methods
Conference
Citations 
PageRank 
References 
12
1.88
3
Authors
3
Name
Order
Citations
PageRank
Benjamin Laxton1864.60
Kai Wang21734195.03
stefan savage3110171067.00