A note on López-Dahab coordinates

Tanja Lange

Paper 2004/323 Original: eprint.iacr.org/2004/323 ↗

A note on López-Dahab coordinates

Tanja Lange

Abstract

López-Dahab coordinates are usually the system of choice for implementations of elliptic curves over binary fields. We give new formulas for doubling which need one squaring less and one more addition. This leads to a speed-up for binary fields in polynomial basis representation.

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Preprint.
History: 2006-07-20: last updated; 2004-11-24: published
Short URL: https://ia.cr/2004/323
License: https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2004/323,
      author = {Tanja Lange},
      title = {A note on López-Dahab coordinates},
      howpublished = {Cryptology {ePrint} Archive, Paper 2004/323},
      year = {2004},
      url = {https://eprint.iacr.org/2004/323}
}