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How secure are electronic locks used on safes?

Part 3 is where I show 5 ways to crack into a cheap safe!    • EEVblog 1494 - FIVE Ways to Open a CH...  

Dave tries a basic first attempt power line analysis attack on a standard La Gard (LG) 3740/3750 Basic electronic digital lock on a CMI home safe.
Can you crack an electronic digital safe lock with just a resistor and an oscilloscope?
All sorts of safe cracking techniques are discussed - thermal camera imaging, bumping, drilling, and spiking the solenoid.
And naturally there is a complete teardown of the La Gard lock and a demonstration on how it works.
And then Dave does something incredibly dumb, and has to fix it the old fashioned way, Hollywood style.
It's a tail of epic fails and stunning wins.
Part 2 is here:    • EEVblog #771 - Electronic Safe Lock P...  


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ST ST62T25 OTP Microcontroller
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AT93C46 http://www.atmel.com/Images/doc5140.pdf



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