No exact results. Similar results found.
@azonenberg@ioc.exchange2026-01-06 11:43:00
OK, I think I have a reasonably efficient table driven implementation of the 100baseTX scrambler LFSR, capable of predicting future scrambler states with offsets of up to 2^30-1 in constant time.
I still don't grok the math. I ended up doing this by essentially bruteforcing the algebraic solution, creating a class representing a 11th-order polynomial with boolean coefficients symbolically and evaluating the LFSR in a loop 1, 2, 4, 8, 16, etc. times.
The table generator logic …
