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Efficient partially blind signatures with provable security

  • Qianhong Wu*
  • , Willy Susilo
  • , Yi Mu
  • , Fanguo Zhang
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Blind signatures play a central role in applications such as e-cash and e-voting systems. The notion of partially blind signature is a more applicable variant such that the part of the message contains some common information pre-agreed by the signer and the signature requester in an unblinded form. In this paper, we propose two efficient partially blind signatures with provable security in the random oracle model. The former is based on witness indistinguishable (WI) signatures. Compared with the state-of-the-art construction due to Abe and Fujisaki [1], our scheme is 25% more efficient while enjoys the same level of security. The latter is a partially blind Schnorr signature without relying on witness indistinguishability. It enjoys the same level of security and efficiency as the underlying blind signature.

Original languageEnglish
Title of host publicationComputational Science and Its Applications - ICCSA 2007 - International Conference, Proceedings
PublisherSpringer Verlag
Pages1096-1105
Number of pages10
EditionPART 3
ISBN (Print)9783540744825
DOIs
StatePublished - 2007
Externally publishedYes
EventInternational Conference on Computational Science and its Applications, ICCSA 2007 - Kuala Lumpur, Malaysia
Duration: 26 Aug 200729 Aug 2007

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
NumberPART 3
Volume4707 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

ConferenceInternational Conference on Computational Science and its Applications, ICCSA 2007
Country/TerritoryMalaysia
CityKuala Lumpur
Period26/08/0729/08/07

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