Brian Madison of Key Equipment Finance Discusses Transforming Equipment Finance Companies
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Replication Prohibited - 3D printed key attacks [32c3]
Replication Prohibited 3D printed key attacks Physical keys and locks are one of the oldest security mechanisms still employed today. In this talk, we will discuss ...
Mehh, undergrad shoulda talked to some material sciences or plastics
engineering grad students and spent 5 minutes looking up data sheets. E.g.,
all MSDS sheets on basically every polymer ever is available, and describes
in great detail the amount of both repeated trauma for permanent elastic
deformation and failure (what happened with his low grade nylon) as well as
tensile/torsion failure (which is what happened with the brittle Acrylic).
There are different grades of Nylon, and had he simply used Nylon 6,6 30%
glass fiber reinforced (good up to ~25k PSI -- 1018 standard mild steel is
only twice as strong and takes a way better machinist to CNC that out) he
would have received a more durable enough key (there are only two grades of
alum that are stronger than n6,6 p30).
Then he returns into his domain of specialty, software, and haha that's
clever, a picture into a CAD model eh.
Low quality CCC talk compared to the Karsten Kohl taking down GSM, the MIT
students taking down NXP's smartcard crypto, the legendary failoverflow
hardware hacks, etc.
You missed the second part of my comment - if he wants a low tech way to do it, a 3 dollar DC motor and a watch battery with a piece of metal jammed on it will vibrate fast enough to defeat most locks. 3C has historically been about people using knowledge to smash the existing infrastructure, Cult of the Dead Cow, Bunnie Huang and the rest of the MITers to some 20 year old kids with 200 dollars worth of gear fucking around on IRC under the name fail0verflow managing to buffer overflow hundreds of millions dollars worth of R&D. 3d printing a blank isn't clever. I have more respect for the crackhead who engineers lockpicks out of broken antennas than some dude who doesnt perform due diligence. The picture + post-processing it was clever, but you still only got a blank. It's a half-hack at best. The rest of his talk was just regurgitating other people's findings (the titanium 2 layered synthesis would have been worth a full 50 minutes though and surprise it was some over educated nerds at MIT who did that!) I'm not even in material sciences, this is just shit I've absorbed because I find it fascinating. All of this information is available on Google and he spent 10 minutes going through the material failure of shit that was already well traversed to begin with. Where's the innovation? Go to AvE (industrial eng), dave jones (elec eng) or some of the good machinists who dropped out of high school smoked pot and sat around thinking about what would happen if they fucked around with some angle iron, cold rolled steel and some 30 year old hydraulic setup he stole from his uncles tractor. Those are the channels which have good hacks. This dude just bought some shit, broke it, and did some image filtering/rotational analysis, whoopee.
+wither8 reading your comment you wrote from your high horse shows that you completely missed the point of his talk. He has sufficiently shown that anyone without any knowledge about material science or production techniques can produce working keys just by spending a couple of bucks and trying it out alone. No degree in something needed. This might insult you because you see how you have wasted your time studying, but it is valid nonetheless.
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