A while ago, I was looking at Hack A Day, and I saw an amazing project that somebody had made. It was an RFID card with a keypad on it. For the next couple of days, I couldn’t get the image of the card out of my mind; the project reminded me of how much I wanted to build a RFID spoofer myself. The original author didn’t release source code for their project, but they left enough clues that I could follow.
So, in typical fashion, I built my own reader hardware so I could have a look at the data from a card, and created my own version of the Universal RFID key.
The key I made works beautifully both on my garage door, as well as on my office door!
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