Paper 2002/153 Original: eprint.iacr.org/2002/153 ↗

Weighted Coordinates on Genus 2 Hyperelliptic Curves

Tanja Lange
Abstract

This paper is the third in a line considering the arithmetic in the ideal class group of hyperelliptic genus two curves. The previous two papers deal with generalizations of affine and projective coordinates. Now we investigate how one can obtain inversion free formulae that are faster than projective by considering weighted coordinates. To that end we make an extensive case study to deal with different characteristic, equation of the curve, space requirement and situation of appliance.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Preprint.
History
2003-05-22: last updated
2002-10-15: published
Short URL
https://ia.cr/2002/153
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2002/153,
      author = {Tanja Lange},
      title = {Weighted Coordinates on Genus 2 Hyperelliptic Curves},
      howpublished = {Cryptology {ePrint} Archive, Paper 2002/153},
      year = {2002},
      url = {https://eprint.iacr.org/2002/153}
}
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