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An upper bound for the number of functions satisfying the strict avalanche criterion

  • K. N. Pankov
Published/Copyright: May 1, 2005
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Discrete Mathematics and Applications
From the journal Volume 15 Issue 3

The strict avalanche criterion was introduced by Webster and Tavares while studying some cryptographic functions. We say that a binary function ƒ(x), xVn, satisfies this criterion if replacing any coordinate of the vector x by its complement changes the values of ƒ(x) exactly in a half of cases. In this paper we establish an upper bound for the number of such functions for n large enough.

Published Online: 2005-05-01
Published in Print: 2005-05-01

Copyright 2005, Walter de Gruyter

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