This paper explains how the Nos-Santos-Izquierdo Field (NSIF) works, focusing in the similarities between the RSA problem, factorization, and the calculation decimal expansions.
You can download it from the following link: https://packetstormsecurity.com/files/download/159031/nos-santos-izquierdo.pdf
Source: https://packetstormsecurity.com/files/159031/Nos-Santos-Izquierdo-Field.html