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Structure-Preserving Signatures from Standard Assumptions, Revisited

  • Eike Kiltz
  • Jiaxin Pan
  • Hoeteck Wee
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9216)

Abstract

Structure-preserving signatures (SPS) are pairing-based signatures where all the messages, signatures and public keys are group elements, with numerous applications in public-key cryptography. We present new, simple and improved SPS constructions under standard assumptions via a conceptually different approach. Our constructions significantly narrow the gap between existing constructions from standard assumptions and optimal schemes in the generic group model.

Notes

Acknowledgments

We thank Olivier Blazy and Georg Fuchsbauer for helpful discussions.

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Copyright information

© International Association for Cryptologic Research 2015

Authors and Affiliations

  1. 1.Ruhr-Universität BochumBochumGermany
  2. 2.ENSParisFrance

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