KeeLoq 64bit brute force

Is it possible to do this? Because everywhere there is a selection only for 12 bit. Is it possible to somehow hack such a gate, if I did not have a key fob?

I tried to match the key with the standard library (CAME 12bit 433MHz), is this different? Not suitable for my key?

P.S. I do not understand how it works) Please treat adequately)

Filetype: Flipper SubGhz Key File
Version: 1
Frequency: 433920000
Preset: FuriHalSubGhzPresetOok650Async
Protocol: KeeLoq
Bit: 64
Key: C2 8F A9 B1 35 CC 40 04
Manufacture: Came_Space

go to the forum, the firmware that you have installed