We have successfully helped organizations manage their projects better, cut costs and streamline their practices.However, this morning at 7:09 am, one minute before my alarm usually goes off (weird coincidence), the phone on my nightstand buzzed with an email alert.
Asta Power Project Codes Software Ing Code To MyCracking an electronic safe using brute force Project tutorial by Bob Anderson 9,617 views 2 comments 20 respects Project tutorial Cracking an electronic safe using brute force I couldnt find the code to my safe and needed to retrieve documents from it, so I cracked it.
A thief would just cut the dang thing open and be done with it. To remove this file from the story, click on it to trigger the context menu, then click the trash can button (this wont delete it from the Software tab). Asta Power Project Codes Software Ing Manual With TheWhen I got the safe, I promptly emailed myself the manufacturers code, set up an easily remembered user code, and stored the manual with the manufacturers code in a safe place. No problem, I say, Ill just look up the manufacturers code in my email. So, what keywords did I use to make it searchable Apparently not safe, combo, password, combination, or any combination or related word thereof. I could send a notarized letter to the safe company, but wheres the fun in that I could open it destructively, but I didnt really want to do that either. The lock is an electronic combination with a five digit password, so brute forcing seems plausible, but theres a two minute lockout on 3 wrong combinations, taking the brute force time to 140 days. That wont work. Unless. I open up the battery compartment, enter three wrong combos, it goes into lockout mode, I remove the battery for a couple seconds and put it back. Yep, it forgot it was in lockout mode, and I can now enter 3 more passwords. I estimate the safe could be opened in less than 6 days using brute force. Im not in a real hurry for the documents, dont want to break the safe, and love the challenge of getting my safecracking on, so I commit to cracking this sucker via brute force. At first I considered a mechanical dialer that would punch the buttons for me, but the mechanics of doing that with acceptable speed seemed somewhat difficult - not an afternoons kind of project. However, by cutting away a couple globs of hot glue with a blade, i could access the keypad contacts directly. Conveniently, there are access holes for connecting wires to the contact array. ![]() Then it was a simple matter of using some relay boards I had laying around to start dialing the keypad using an arduino I also had laying around. I used a couple of photosensors to read the LED status indicators so that I could know if the combo failed or succeeded. Finally, I used an additional relay to power cycle the keypad after 3 failed combinations to defeat the lockout feature. With a little programming work, I had an automated dialer that should () stop when the correct combination was found. By logging each attempt on a laptop and writing a couple of little helper scripts, I had hourly status updates being delivered via email. It was a bit of a programmers nightmare in that I could not test the code directly for success, and didnt have the exact details of what the success scenario looked like, for example, how long until the green LED would light, how brightly it would light, or if it would be solid or flashing. So I did my best to make it robust to these details and prayed. When over 23 of the keyspace had been searched and no combination found, I started to doubt the success of the project.
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