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nroets 6 days ago

Correct. While the original KeeLog cipher is most likely no longer secure, Microchip moved on to AES.

KeeLoq is also used for garage door openers.

Some KeeLoq receivers have a "learning mode" where it adds the next KeeLoq transmitter it hears provided it uses the same manufacturer key.

Learn mode is activated either with a button often on the PCB or with a "master" transmitter.

https://en.wikipedia.org/wiki/KeeLoq