Efficient techniques for high-speed elliptic curve cryptography

  • Authors:
  • Patrick Longa;Catherine Gebotys

  • Affiliations:
  • Department of Electrical and Computer Engineering, University of Waterloo, Canada;Department of Electrical and Computer Engineering, University of Waterloo, Canada

  • Venue:
  • CHES'10 Proceedings of the 12th international conference on Cryptographic hardware and embedded systems
  • Year:
  • 2010

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Abstract

In this paper, a thorough bottom-up optimization process (field, point and scalar arithmetic) is used to speed up the computation of elliptic curve pointmultiplication and report newspeed records on modern x86-64 based processors. Our different implementations include elliptic curves using Jacobian coordinates, extended Twisted Edwards coordinates and the recently proposed Galbraith-Lin-Scott (GLS) method. Compared to state-of-the-art implementations on identical platforms the proposed techniques provide up to 30% speed improvements. Additionally, compared to the best previous published results on similar platforms improvements up to 31% are observed. This research is crucial for advancing high speed cryptography on new emerging processor architectures.