We discuss arithmetic in the Jacobian of a hyperelliptic curve C of genus g. The traditional approach is to fix a point P∞ ∈ C and represent divisor classes in the form E-d(P∞) where E is effective and 0 ≤ d ≤ g. We propose a different representation which is balanced at infinity. The resulting arithmetic is more efficient than previous approaches when there are 2 points at infinity. © 2008 Springer-Verlag Berlin Heidelberg.
CITATION STYLE
Galbraith, S. D., Harrison, M., & Morales, D. J. M. (2008). Efficient hyperelliptic arithmetic using balanced representation for divisors. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 5011 LNCS, pp. 342–356). https://doi.org/10.1007/978-3-540-79456-1_23
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