June 14, 2015
June 14, 2015
June 17, 2015
26.1113.1 - 26.1113.10
Call a 3D Locksmith – How 3D Printing can Defeat Physical SecurityPhysical security analysts have always sought to overcome challenges in security infrastructureusing novel approaches and new technology. One of these challenges is preset, mechanical lockmechanisms. 3D printing technology provides a valuable tool for those interested in attacking orbypassing high-security locks. This technology can allow such practitioners to create key blanksor replicas from key data such as physical key measurements or photographic evidence.Preset, mechanical locks are generally vulnerable to a variety of attacks, but due to the enormityof designs and technologies in the world today, each lock typically requires a diﬀerent techniqueto exploit or bypass. For example, simple pin and wafer locks can be picked with moderate skill,but more complicated locks with sidebar mechanisms make picking impractical withoutspecialized tools and a high degree of skill. These factors and more must be recognized byinformation security practitioners because physical access controls for sensitive infrastructure arejust as important as logical access controls. No amount of digital security is enough if attackerscan bypass the physical security and gain direct access to hardware.Impressioning is a common lock picking technique that allows an attacker to create a copy of thekey for the target lock. However, it requires skill and key blanks speciﬁc to the target lock type.Another option is to have the key copied, but there are countermeasures in place to make thisdiﬃcult. These countermeasures include controlling the key blanks and cutting facilities forhigh-security locks. Additionally, it is inherently diﬃcult to obtain the ‘bitting’ of the originalkey.3D printing can make all of these attacks more eﬀective, increasing the risk that high-securitylocks may be circumvented. To understand how these manufacturing techniques can be used, afew methods of 3D printing will ﬁrst be discussed, including their beneﬁts and drawbacks. Next,some popular attacks on preset, mechanical lock systems will be examined. Finally, the twoapproaches will be combined to understand how 3D printing technology can enhance lockpicking high-security locks.
Doyle, B., & Goettel, C., & Broadbent, L., & Rowe, D. C. (2015, June), MAKER: Call a 3D Locksmith – How 3D Printing can Defeat Physical Security Paper presented at 2015 ASEE Annual Conference & Exposition, Seattle, Washington. 10.18260/p.24450
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