Copying a FOB to RFID Sticker

Older vehicles used static codes for keyless entry. These static codes are inherently vulnerable, as any individual can capture and replay them at will to lock and unlock a vehicle. Manufacturers later introduced rolling codes to improve vehicle security. Rolling codes work by using a Pseudorandom Number Generator (PRNG). When a lock or unlock button is pressed on a paired key fob, the fob sends a unique code wirelessly to the vehicle encapsulated within the message. The vehicle then checks the code sent to it against its internal database of valid PRNG-generated codes, and if the code is valid, the car grants the request to lock, unlock, or start the vehicle.

Shamelessly copied from:

https://www.thedrive.com/news/i-tried-the-honda-keyfob-hack-on-my-own-car-it-totally-worked

If this is how it works with Toyotas, then an RFID woudn't work, since they are fixed. If you do find a way, or if you establish that some ways don't work, we'd like to hear about it.

 

The fob contains both an RFID chip (used when you shove the fob into the slot in the dash, works even if the fob battery is dead) and a wireless transmitter for remote operation and smartkey operation (only works with a good fob battery).

I suspect you would be able to copy the content of the RFID chip onto another sticker. It would probably work if shoved into the dash slot. But then, the sticker might not really have the right shape to shove in that slot.

The wireless remote part surely uses codes you can't just copy onto a sticker.

 

Sounds like it might start the car but not unlock the door.