Paper 2012/122 Original: eprint.iacr.org/2012/122 ↗

Efficient Arithmetic on Elliptic Curves over Fields of Characteristic Three

Reza R. Farashahi
Hongfeng Wu
Chang-An Zhao
Abstract

This paper presents new explicit formulas for the point doubling, tripling and addition for Hessian curves and their equivalent Weierstrass curves over finite fields of characteristic three. The cost of basic point operations is lower than that of all previously proposed ones. The new doubling, mixed addition and tripling formulas in projective coordinates require 3M+2C, 8M+1C+1D and 4M+4C+1D respectively, where M, C and D is the cost of a field multiplication, a cubing and a multiplication by a constant. Finally, we present several examples of ordinary elliptic curves in characteristic three for high security levels.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Preprint.
History
2012-05-09: last updated
2012-03-13: published
Short URL
https://ia.cr/2012/122
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2012/122,
      author = {Reza R.  Farashahi and Hongfeng Wu and Chang-An Zhao},
      title = {Efficient Arithmetic on Elliptic Curves over Fields of Characteristic Three},
      howpublished = {Cryptology {ePrint} Archive, Paper 2012/122},
      year = {2012},
      url = {https://eprint.iacr.org/2012/122}
}
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