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Paper 2010/101

Fair Blind Signatures without Random Oracles

Georg Fuchsbauer and Damien Vergnaud

Abstract

A fair blind signature is a blind signature with revocable anonymity and unlinkability, i.e., an authority can link an issuing session to the resulting signature and trace a signature to the user who requested it. In this paper we first revisit the security model for fair blind signatures given by Hufschmitt and Traoré in 2007. We then give the first practical fair blind signature scheme with a security proof in the standard model. Our scheme satisfies a stronger variant of the Hufschmitt-Traoré model.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Published elsewhere. Unknown where it was published
Keywords
Blind signaturesRevocable anonymityStandard modelGroth-Sahai proof system.
Contact author(s)
vergnaud @ di ens fr
History
2010-03-01: received
Short URL
https://ia.cr/2010/101
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2010/101,
      author = {Georg Fuchsbauer and Damien Vergnaud},
      title = {Fair Blind Signatures without Random Oracles},
      howpublished = {Cryptology ePrint Archive, Paper 2010/101},
      year = {2010},
      note = {\url{https://eprint.iacr.org/2010/101}},
      url = {https://eprint.iacr.org/2010/101}
}
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