[Resource Topic] 2004/279: Parallel Montgomery Multiplication in $GF(2^k)$ using Trinomial Residue Arithmetic

Welcome to the resource topic for 2004/279

Title:
Parallel Montgomery Multiplication in GF(2^k) using Trinomial Residue Arithmetic

Authors: Jean-Claude Bajard, Laurent Imbert, Graham A. Jullien

Abstract:

We propose the first general multiplication algorithm in \mathrm{GF}(2^k) with a
subquadratic area complexity of \mathcal{O}(k^{8/5}) = \mathcal{O}(k^{1.6}).
Using the Chinese Remainder Theorem, we represent the elements of
\mathrm{GF}(2^k); i.e. the polynomials in
\mathrm{GF}(2)[X] of degree at most k-1, by their remainder
modulo a set of n pairwise prime trinomials,
T_1,\dots,T_{n}, of degree d and such that nd \geq k.
Our algorithm is based on Montgomery’s multiplication applied to the ring formed
by the direct product of the trinomials.

ePrint: https://eprint.iacr.org/2004/279

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