Raspberry Pi

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Raspberry Pi is a series of small single-board computers. It is widely used in many areas because of its low cost, modularity, and open design. It is typically used by computer and electronic hobbyists.

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Secure use of remote control ? (programming.dev)

submitted 3 weeks ago by Rick_C137@programming.dev to c/raspberry_pi@programming.dev

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Hi Raspberry Pi Community,

I would like to use radio remote's control to trigger an events on my Raspberry pi.

I guess I'll go with 433Mhz as I believe they are the most common available ?

So I will need a 433Mhz RX/TX Module to connect on the GPIO, so far I get it...

But how properly secure the communication between those remotes and the RPI to avoid any anyone to sniff the transmitting and replay it. In other words spoof it.

Wubba Lubba dub-dub...

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[–] RandomUser@lemmy.world 1 points 3 weeks ago (3 children)

Rolling codes may protect you from a replay attack, but if the attacker is more sophisticated and has worked out the algorithm, then they can send the commands and effectively lock you out.

Is Bluetooth no good? Lots of protection baked in already.

[–] Rick_C137@programming.dev 1 points 2 weeks ago (1 children)

I'm open to all solutions :) But it there some ready Bluetooth remote pilot existing ?

[–] RandomUser@lemmy.world 1 points 2 weeks ago

Not really read up on it yet, but can you do serial over Bluetooth? Quick Google gave me this: https://raspberry-projects.com/pi/pi-operating-systems/raspbian/bluetooth/serial-over-bluetooth

There may even be an android app that could help. Suppose it depends on the scope of your project.

Funnily enough I may have to do something with this tech myself later in the year.

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