%0 Journal Article %T Elliptic periods for finite fields %A Jean-Marc Couveignes %A Reynald Lercier %J Mathematics %D 2008 %I arXiv %R 10.1016/j.ffa.2008.07.004 %X We construct two new families of basis for finite field extensions. Basis in the first family, the so-called elliptic basis, are not quite normal basis, but they allow very fast Frobenius exponentiation while preserving sparse multiplication formulas. Basis in the second family, the so-called normal elliptic basis are normal basis and allow fast (quasi linear) arithmetic. We prove that all extensions admit models of this kind. %U http://arxiv.org/abs/0802.0165v2