I was recently reminded of this.
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I was recently reminded of this.
A couple decades ago, I wrote a short paper that described how the basic approaches of cryptography and computer security lead to an efficient and practical privilege escalation attack against master-keyed mechanical lock, which I published in IEEE Security and Privacy (a nerdy computing technical journal).
https://www.mattblaze.org/papers/mk.pdf
TL;dr: Master-keyed locks have fundamental, exploitable weaknesses.
But I wasn't ready for what happened next.
1/
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I was recently reminded of this.
A couple decades ago, I wrote a short paper that described how the basic approaches of cryptography and computer security lead to an efficient and practical privilege escalation attack against master-keyed mechanical lock, which I published in IEEE Security and Privacy (a nerdy computing technical journal).
https://www.mattblaze.org/papers/mk.pdf
TL;dr: Master-keyed locks have fundamental, exploitable weaknesses.
But I wasn't ready for what happened next.
1/
Unexpectedly, my paper got some press attention. @jswatz_tx found it and wrote a short piece in the NY Times.
And then locksmiths freaked out. I mean completely lost it. They were very upset, not so much that a very common lock design had a basic security flaw, but that an "outsider" found it and had the poor moral character to make it public.
I started getting weird death threats. They doxed me ("let's see what kind of lock the bastard has on HIS house")
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