The divisibility modulo 24 of Kloosterman sums on $GF(2^m)$, $m$ even

Marko Moisio

In a recent work by Charpin, Helleseth, and Zinoviev Kloosterman sums $K(a)$ over a finite field $\F_{2^m}$ were evaluated modulo 24 in the case $m$ odd, and the number of those $a…