Debug Shared Library and transcribe code in Python.

I'm trying to reverse engineer an android app, but I'm stuck in a specific part where I have to understand how a function contained in the shared library works. Basically, the function takes three parameters and returns a kind of token, I need to know the algorithm used to generate this "token". I need someone to transcribe the code into python so I can proceed. he function has less than 200 lines of code.