Paper 2024/623 Original: eprint.iacr.org/2024/623 ↗

Complete group law for genus 2 Jacobians on Jacobian coordinates

Elif Ozbay Gurler
Huseyin Hisil
Abstract

This manuscript provides complete, inversion-free, and explicit group law formulas in Jacobian coordinates for the genus 2 hyperelliptic curves of the form $y^2 = x^5 + a_3 x^3 + a_2 x^2 + a_1 x + a_0$ over a field $K$ with $char(K) \ne 2$. The formulas do not require the use of polynomial arithmetic operations such as resultant, mod, or gcd computations but only operations in $K$.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Preprint.
History
2024-04-22: last updated
2024-04-22: published
Short URL
https://ia.cr/2024/623
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2024/623,
      author = {Elif Ozbay Gurler and Huseyin Hisil},
      title = {Complete group law for genus 2 Jacobians on Jacobian coordinates},
      howpublished = {Cryptology {ePrint} Archive, Paper 2024/623},
      year = {2024},
      url = {https://eprint.iacr.org/2024/623}
}
Note: In order to protect the privacy of readers, this archive does not use cookies or embedded third party content.