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by mschuster91 1433 days ago
> Don't they have "secrets" for the actual ACK that lets your in and garage doors rotate through codes do they not?

Remote door controls are painfully dumb and relied on the absence of affordable software-defined receivers and especially transmitters. With most of them you can set the code via binary DIP switches at the back and that's it. No replay protection, no nothing, if you're lucky the receiver has a brute-force detection.