A Note on a Combinatorial Conjecture

DOI: 10.4236/ojdm.2013.31010   PDF   HTML   XML   4,854 Downloads   7,038 Views   Citations


It is difficult to find Boolean functions achieving many good cryptographic properties. Recently, Tu and Deng obtained two classes of Boolean functions with good properties based on a combinatorial conjecture about binary strings. In this paper, using different approaches, we prove this conjecture is true in some cases. This conjecture has resisted different attempts of proof since it is hard to find a recursive method. In this paper we give a recursive formula in a special case.

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G. Deng, "A Note on a Combinatorial Conjecture," Open Journal of Discrete Mathematics, Vol. 3 No. 1, 2013, pp. 49-52. doi: 10.4236/ojdm.2013.31010.

Conflicts of Interest

The authors declare no conflicts of interest.


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[2] G. Cohen and J.-P. Flori, “On a Generalized Combinatorial Conjecture Involving Addition Mod ,” IACR Cryptology ePrint Archive, Vol. 400, 2011, in press.
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[5] J.-P. Flori and H. Randriam, “On the Number of Carries Occuring in an Addition Mod ,” Integers, Vol. 12, No. A10, 2012.

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