Welcome to the resource topic for 2002/160
Title:
Cryptology and Physical Security: Rights Amplification in Master-Keyed Mechanical Locks
Authors: Matt Blaze
Abstract:This paper examines mechanical lock security from the perspective of
computer science and cryptology. We focus on new and practical
attacks for amplifying rights in mechanical pin tumbler locks. Given
access to a single master-keyed lock and its associated key, a
procedure is given that allows discovery and creation of a working
master key for the system. No special skill or equipment, beyond a
small number of blank keys and a metal file, is required, and the
attacker need engage in no suspicious behavior at the lock’s location.
Countermeasures are also described that may provide limited protection
under certain circumstances. We conclude with directions for research
in this area and the suggestion that mechanical locks are worthy
objects for study and scrutiny.
ePrint: https://eprint.iacr.org/2002/160
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