Monomial bent functions

  • Authors:
  • N. G. Leander

  • Affiliations:
  • Ruhr-Univ. Bochum

  • Venue:
  • IEEE Transactions on Information Theory
  • Year:
  • 2006

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Abstract

In this correspondence, we focus on bent functions of the form F(2 n) rarr F(2) where x rarr Tr(alphaxd). The main contribution of this correspondence is, that we prove that for n=4r, r odd, the exponent d=(2r+1)2 allows the construction of bent functions. This open question has been posed by Canteaut based on computer experiments. As a consequence for each of the well understood families of bent functions, we now know an exponent d that yields to bent functions of the given type