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On “bent” functions |
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| Authors: | O. S. Rothaus |
| Affiliation: | Department of Mathematics, Cornell University, Ithaca, New York 14853 USA |
| Abstract: | Let P(x) be a function from GF(2n) to GF(2). P(x) is called “bent” if all Fourier coefficients of (−1)P(x) are ±1. The polynomial degree of a bent function P(x) is studied, as are the properties of the Fourier transform of (−1)P(x), and a connection with Hadamard matrices. |
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