Paper 2017/064 Original: eprint.iacr.org/2017/064 ↗

Fast Montgomery-like Square Root Computation over $GF(2^m)$ for All Trinomials

Yin Li
Yu Zhang
Abstract

This letter is concerned with an extension of square root computation over $GF(2^m)$ defined by irreducible trinomials. We introduce a new type of Montgomery-like square root formulae, which is more efficient compared with classic square root operation. By choosing proper Montgomery factor regarding to different types of trinomials, the space and time complexities of our proposal outperform or match the best results. Furthermore, a practical application of the Montgomery-like square root in exponentiation computation is also presented.

Metadata
Available format(s)
PDF
Category
Foundations
Publication info
Preprint.
History
2017-08-09: last updated
2017-01-31: published
Short URL
https://ia.cr/2017/064
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2017/064,
      author = {Yin Li and Yu Zhang},
      title = {Fast Montgomery-like Square Root Computation over $GF(2^m)$ for All Trinomials},
      howpublished = {Cryptology {ePrint} Archive, Paper 2017/064},
      year = {2017},
      url = {https://eprint.iacr.org/2017/064}
}
Note: In order to protect the privacy of readers, this archive does not use cookies or embedded third party content.