Breaking safes with brute force
MIT students have constructed a second-generation Autodialer robot that cracks safes by sorting through combinations.
The robot is controlled from a laptop via an Atmel microcontroller via a USB port, the algorithm of servo and stepper movements is implemented as a Java program with a GUI interface, plus two thousand lines of microcontroller firmware code.
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The first robot, introduced last year , mastered the Sargent and Greenleaf 8400 lock . It is one of the best castles in the world, which has been used by the feds for more than 30 years and only relatively recently was replaced with a new lock with additional electronic protection. Nevertheless, the Sargent and Greenleaf 8400 is quite reliable and cannot be opened by methods that are suitable for breaking locks of the 2nd category.
The second generation robot is already successfully coping with the Sargent and Greenleaf 8500 lock.
Both of these locks have 1 million possible combinations. The students used some kind of spatial optimization: thanks to the study of the “mechanical tolerances and the“ dead zones ”of some combinations,” they were able to reduce the number of permissible combinations by an order of magnitude. Thus, hacking the castle takes several hours.
Of course, MIT students are not the only ones interested in this topic. From open sources, at least one more computer-controlled device for breaking mechanical locks is known : Locraker selects a three-digit combination on average for 30 minutes.
But here we are talking about very simple locks, like on bags, diplomats or bicycles. Even a Lego robot can handle such a simple lock.
The robot is controlled from a laptop via an Atmel microcontroller via a USB port, the algorithm of servo and stepper movements is implemented as a Java program with a GUI interface, plus two thousand lines of microcontroller firmware code.
')
The first robot, introduced last year , mastered the Sargent and Greenleaf 8400 lock . It is one of the best castles in the world, which has been used by the feds for more than 30 years and only relatively recently was replaced with a new lock with additional electronic protection. Nevertheless, the Sargent and Greenleaf 8400 is quite reliable and cannot be opened by methods that are suitable for breaking locks of the 2nd category.
The second generation robot is already successfully coping with the Sargent and Greenleaf 8500 lock.
Both of these locks have 1 million possible combinations. The students used some kind of spatial optimization: thanks to the study of the “mechanical tolerances and the“ dead zones ”of some combinations,” they were able to reduce the number of permissible combinations by an order of magnitude. Thus, hacking the castle takes several hours.
Of course, MIT students are not the only ones interested in this topic. From open sources, at least one more computer-controlled device for breaking mechanical locks is known : Locraker selects a three-digit combination on average for 30 minutes.
But here we are talking about very simple locks, like on bags, diplomats or bicycles. Even a Lego robot can handle such a simple lock.
Source: https://habr.com/ru/post/112493/
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