2 papers
math.AG2017
On permutations induced by tame automorphisms over finite fields
Keisuke Hakuta
The present paper deals with permutations induced by tame automorphisms over finite fields. The first main result is a formula for determining the sign of the permutation induced b…
math.NT2014
Some properties of -adic expansions on hyperelliptic Koblitz curves
Keisuke Hakuta, Hisayoshi Sato, Tsuyoshi Takagi
This paper explores two techniques on a family of hyperelliptic curves that have been proposed to accelerate computation of scalar multiplication for hyperelliptic curve cryptosyst…