Exponentiation in Pairing-Friendly Groups Using Homomorphisms

  • Authors:
  • Steven D. Galbraith;Michael Scott

  • Affiliations:
  • Mathematics Department, Royal Holloway, University of London, Egham, United Kingdom TW20 0EX;School of Computing, Dublin City University, Ballymun, Ireland

  • Venue:
  • Pairing '08 Proceedings of the 2nd international conference on Pairing-Based Cryptography
  • Year:
  • 2008

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Abstract

We present efficiently computable homomorphisms of the groups G2and GTfor pairings G1×G2茂戮驴GT. This allows exponentiation in G2and GTto be accelerated using the Gallant-Lambert-Vanstone method.