Abstract
We study the divisibility by eight of exponential sums of several classes of functions over finite fields of characteristic two. For the binary classical Kloosterman sums K(a) over such fields we give a simple recurrent algorithm for finding the largest k, such that 2k divides the Kloosterman sum K(a). This gives a simple description of zeros of such Kloosterman sums.
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This is one of several papers published in Designs, Codes and Cryptography comprising the “Special Issue on Coding and Cryptography”.
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Bassalygo, L.A., Zinoviev, V.A. On divisibility of exponential sums of polynomials of special type over fields of characteristic 2. Des. Codes Cryptogr. 66, 129–143 (2013). https://doi.org/10.1007/s10623-012-9669-3
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DOI: https://doi.org/10.1007/s10623-012-9669-3
Keywords
- Finite field
- Polynomial
- Exponential sum
- Binary Kloosterman sum
- Divisor 2k of Kloosterman sum
- Zero of Kloosterman sum