I was talking with a friend recently about the need for physical device security.
This then strangely lead onto cracking safes, which resulted in pondering whether or not it would be possible to design, build and program a Lego Mindstorms device to crack a combination safe.
I then did a bit of research and found that his has already been done in python using an arduino and a few other electronic bits.
Assembly wise, the device would be fairly simple to construct. The main issue would be turning a wheel accurately enough to be able turn the combination lock a single number either to the left or right.
My proposed method of attack would be simply brute forcing the combination, to test this I would obviously need to have something like a four digit code using a fairly limited range of digits so that the number of possible combinations is not insanely high.
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