There has been plenty of information published on DES-OFB and ADP key recovery, including
the NICTA paper 5076..
There is also the proof of concept code that validated the attacks in the paper available
here:-
https://github.com/stiabhan/p25lib https://github.com/stiabhan/p25lib
Now, given that desktop PC's have bene used to brute force RC4 for 15 years now, it
doesn't take much for anyone to recreate these attacks now, does it....
Cheers,
Matt