For the cryptopals challenge, you have to invert the Mersenne Twister scramble function:

https://cryptopals.com/sets/3/challenges/23

https://github.com/elsamuko/cryptopals/blob/610ab19bf6823a34...

I wrote an inverter for XXHASH64, in python: https://gist.github.com/DavidBuchanan314/13020be9e2a251e2a2a...