OpenSesame – A device that can open fixed-code garage doors in seconds

Post by cmdrfred » Thu, Jun 04, 2015, 8:25 PM UTC

Cymen wrote: post #50

mrb wrote: post #18

Three weeks ago I reverse-engineered my garage door opener wireless protocol. I probed the remote's PCB with a Saleae logic analyzer and found it was a 12-bit code ASK-modulated at 390 MHz with bits encoded as sequences of 10 kHz and 20 kHz pulses. I bought a $13 spare remote to hack it and control the RF transmitter section from my computer through an FT232 sending the ASK signal. I just cut off the digital signal t…

Somewhat of a tangent, but I am concerned about the MITM attack on car locks [1]. This kind of attack is being used in my neighborhood in Oakland, California and no doubt other places. I read the reports of "someone is breaking into my car but no windows/locks are broken". Then a couple other people on NextDoor chime in with the same thing and one person reports a woman who is walking around the neighborhood and appe…

Post by nickbauman » Thu, Jun 04, 2015, 8:41 PM UTC

mrb wrote: post #18

Three weeks ago I reverse-engineered my garage door opener wireless protocol. I probed the remote's PCB with a Saleae logic analyzer and found it was a 12-bit code ASK-modulated at 390 MHz with bits encoded as sequences of 10 kHz and 20 kHz pulses. I bought a $13 spare remote to hack it and control the RF transmitter section from my computer through an FT232 sending the ASK signal. I just cut off the digital signal t…

Post by qbrass » Thu, Jun 04, 2015, 9:17 PM UTC

atmosx wrote: post #52

jandrese wrote: post #7

Earlier quoted context omitted.

My parents did the thing where they put keyed deadbolts on all of the doors. So when someone wanted to break in they broke the glass on the door, discovered the deadbolt, broke the glass on another door and discovered the deadbolt, then broke the glass on a third door before yet again being foiled by the deadbolt. Then they broke a window and stole our stuff anyway. Apparently they were professional thieves too, sinc…

Seriously, a dog[1] apparently is a way better security system. [1] Big dogs are not afraid, thus they sleep at night if not properly trained. Small dogs (especially Yorkshires) are the most bad-ass security system I've encountered. They bark on anything alive that comes into 0.5miles circumference.

Post by tptacek » Thu, Jun 04, 2015, 9:32 PM UTC

at-fates-hands wrote: post #41

mrb wrote: post #18

Three weeks ago I reverse-engineered my garage door opener wireless protocol. I probed the remote's PCB with a Saleae logic analyzer and found it was a 12-bit code ASK-modulated at 390 MHz with bits encoded as sequences of 10 kHz and 20 kHz pulses. I bought a $13 spare remote to hack it and control the RF transmitter section from my computer through an FT232 sending the ASK signal. I just cut off the digital signal t…

>>> I wonder if there could be commercial interest in cryptographically secure garage door openers? Probably not. Mainly because breaking a window or crowbarring a door is a lot less expensive and a lot faster.

Post by pierrec » Thu, Jun 04, 2015, 9:38 PM UTC

heywire wrote: post #56

sctb wrote: post #16

Earlier quoted context omitted.

Thanks, we updated the link from https://threatpost.com/using-a-toy-to-open-a-fixed-code-gara... .

Strangely the old link works fine for me, but the new one is blocked by my workplace's McAfee filter/firewall.