Abstract. This paper addresses the problem of obtaining new construction methods for cryptographically significant Boolean functions. We show that for each positive integer m, there are infinitely many integers n (both odd and even), such that it is possible to construct n-variable, m-resilient functions having nonlinearity greater than 2n-1 - 2 n 2 . Also we obtain better results than all published works on the construction of n-variable, m-resilient functions, including cases where the constructed