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In this video, I worked with my friend Samy Kamkar to understand how garage doors open and how a simple messaging toy could be used to create the same signal and open almost any garage door in seconds. I learned a lot through making this video about common types of codes and security features and also how they can be tricked. I think there's a lot of fascinating stuff here so I hope you agree.

This is a sponsored post and therefore not a Patreon-supported post. The life of a YouTuber is precarious because things are always shifting beneath your feet, notably the recommendation algorithm. Taking on sponsors is a way to insure against this uncertainty. If my channel imploded tomorrow (which is always a possibility looking at recent view numbers) I want to be sure that I can continue to support my family until I figure out what to do next.

I really appreciate your ongoing support!

Best,

Derek

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This Toy Can Open Any Garage

Or almost any garage - it's particularly good with fixed code gates and garages. Samy proposes other weaknesses with rolling codes. This video was sponsored by LastPass: http://bit.ly/2oscAe9 I don't condone malicious hacking of gates, garages or other property. The point of this video was to discuss how it could be done using fairly basic technology like this toy that was originally intended as an instant messaging device. I learned a lot in making this video about how codes are sent and received, how they are encrypted or not encrypted. I found out how hard it is to execute in practice something which in principle doesn't seem that difficult. Special thanks to Samy! His original videos on using the IM ME to open radio frequency garages and gates can be found here: https://www.youtube.com/user/s4myk He's got a really cool channel so be sure to subscribe if you're interested in this stuff. Music from http://epidemicsound.com "Critical thinking 2" "I think I was there" "Magnified X 3" And music by Kevin MacLeod http://incompetech.com "Marty Gots a Plan"

Comments

Anonymous

Really loved this video, Derek. Keep up the great work! And thanks for introducing me to Sammy's channel.

Max Bruckner

I'm baffled that these Garage doors don't use proper cryptography. This would be quite easy: Put a smartcard in the door opener. Then the protocol goes like this: * The door sends a random message encrypted with the public key of the opener and signed by the door * The opener decrypts the message, encrypts it with the public key of the door and signs it, then sends it back to the door * The door verifies the signature and checks if the same random message has been sent back. Please understand the above as a general idea, not a fledged out protocol, since there are probably more details that have to be taken into account.