MegaZone (zonereyrie) wrote,
MegaZone
zonereyrie

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Master-Keyed Lock Vulnerability

A post by mindways reminded me of this. I'd seen a link to this paper some time ago, probably on some crypto forum, and well before that I'd heard of this kind of attack anecdotally. Having taken apart pin tumbler locks myself to play with the keying, and sometimes fix them, this kind of attack certainly makes sense.

But I'd bet that a lot of people, including people who decide to install these kind of master key systems in their institutions, have no idea how vulnerable they are.

If you live or work in a building that has a master key system, you want to read this and the paper it links to.
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