Paper 2014/359 Original: eprint.iacr.org/2014/359 ↗

Explicit endomorphism of the Jacobian of a hyperelliptic function field of genus 2 using base field operations

Eduardo Ruiz Duarte
Octavio Páez Osuna
Abstract

We present an efficient endomorphism for the Jacobian of a curve $C$ of genus 2 for divisors having a Non disjoint support. This extends the work of Costello in ~\cite{Costello} who calculated explicit formul\ae\space for divisor doubling and addition of divisors with disjoint support in $\jacobian(C)$ using only base field operations. Explicit formul\ae\space is presented for this third case and a different approach for divisor doubling.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Preprint.
History
2014-05-23: last updated
2014-05-23: published
Short URL
https://ia.cr/2014/359
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2014/359,
      author = {Eduardo Ruiz Duarte and Octavio Páez Osuna},
      title = {Explicit endomorphism of the Jacobian of a hyperelliptic function field of genus 2 using base field operations},
      howpublished = {Cryptology {ePrint} Archive, Paper 2014/359},
      year = {2014},
      url = {https://eprint.iacr.org/2014/359}
}
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