On the existence of (9,3,5,240) resilient functions
Ziad Saber, Mohammad Faisal Uddin, Amr Youssef · IEEE Transactions on Information Theory · 2006
Using a heuristic search technique, several examples for 9-variable Boolean functions with nonlinearity 240, algebraic degree 5, and resiliency degree 3 were constructed. This construction affirmatively answers the open problem about the existence of such functions.