Differentially 4-uniform functions

نویسنده

  • YVES AUBRY
چکیده

We give a geometric characterization of vectorial Boolean functions with differential uniformity ≤ 4. This enables us to give a necessary condition on the degree of the base field for a function of degree 2r − 1 to be differentially 4-uniform.

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تاریخ انتشار 2009