Paper 2008/490 Original: eprint.iacr.org/2008/490 ↗

On the final exponentiation for calculating pairings on ordinary elliptic curves

Michael Scott
Naomi Benger
Manuel Charlemagne
Luis J. Dominguez Perez
Ezekiel J. Kachisa
Abstract

When using pairing-friendly ordinary elliptic curves to compute the Tate and related pairings, the computation consists of two main components, the Miller loop and the so-called final exponentiation. As a result of good progress being made to reduce the Miller loop component of the algorithm (particularly with the discovery of ``truncated loop'' pairings like the R-ate pairing), the final exponentiation has become a more significant component of the overall calculation. Here we exploit the structure of pairing friendly elliptic curves to reduce the computation required for the final exponentiation to a minimum.

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Publication info
Preprint.
History
2010-08-24: last updated
2008-11-24: published
Short URL
https://ia.cr/2008/490
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2008/490,
      author = {Michael Scott and Naomi Benger and Manuel Charlemagne and Luis J.  Dominguez Perez and Ezekiel J.  Kachisa},
      title = {On the final exponentiation for calculating pairings on ordinary elliptic curves},
      howpublished = {Cryptology {ePrint} Archive, Paper 2008/490},
      year = {2008},
      url = {https://eprint.iacr.org/2008/490}
}
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