I was able to create a compound chaotic system which is given satisfying results so far when used to generate substitution boxes. However, I want to improve the values of NL, SAC, BIC, DP and LP. I need recommendations on how to improve these values. What I am thinking is to use values generated by the proposed chaotic system as an input for elliptic curve. Problem is that I am not much familiar with ECC. Please help in this regard. Thank you!
P.S. I want to achieve results much better than AES S-box in all criteria.