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IEICE TRANSACTIONS on Fundamentals

Open Access
Improvement of Final Exponentiation for Pairings on BLS Curves with Embedding Degree 15

Yuki NANJO, Masaaki SHIRASE, Takuya KUSAKA, Yasuyuki NOGAMI

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Summary :

To be suitable in practice, pairings are typically carried out by two steps, which consist of the Miller loop and final exponentiation. To improve the final exponentiation step of a pairing on the BLS family of pairing-friendly elliptic curves with embedding degree 15, the authors provide a new representation of the exponent. The proposal can achieve a more reduction of the calculation cost of the final exponentiation than the previous method by Fouotsa et al.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E104-A No.1 pp.315-318
Publication Date
2021/01/01
Publicized
2020/07/17
Online ISSN
1745-1337
DOI
10.1587/transfun.2020EAL2046
Type of Manuscript
LETTER
Category
Cryptography and Information Security

Authors

Yuki NANJO
  Okayama University
Masaaki SHIRASE
  Future University Hakodate
Takuya KUSAKA
  Okayama University
Yasuyuki NOGAMI
  Okayama University

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