Here is Russian device called “PDU analizator” (Remote Control Analyzer). It’s an autonomous device that can detect and decode lots of keyfob protocols. It supports commercial protocols and can decode KeeLoq algo and detects a keyfob vendor. Here is the video demonstration in Russian, but it still quite easy to understand without a sound.
The schematic and firmware of this device is closed, but I think i can contact developer directly. We need something similar in Flipper Zero.
If Flipper was using two SI4432 instead of CC11XX you could rx/tx 2FSK and 4FSK codes in 240-930MHz no gaps range. 100mW RF out needed to rolljam. 433.92 ook limited PDU Analizator is a joke. I’m using CY8C27243 to process raw streams of two SI4432 same time.
https://prime-pult.ru/index.php?route=product/product&path=60&product_id=137
sorry. russian only.
I have still never seen anything that “breaks” KeeLoq, especially not from the remote side, its possible if they have the algorithm and the seed that they could have reversed it, but I still would love to see this if it exists!