A novel efficient group signature scheme with forward security

  • Jianhong Zhang*
  • , Qianhong Wu
  • , Yumin Wang
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

A group signature scheme allows a group member to sign a message anonymously on behalf of the group. In case of a dispute, the group manager can reveal the actual identity of signer. In this paper, we propose a novel group signature satisfying the regular requirements. Furthermore, it also achieves the following advantages: (1) the size of signature is independent of the number of group members; (2) the group public key is constant; (3) Addition and Revocation of group members are convenient; (4) it enjoys forward security; (5) The total computation cost of signature and verification requires only 7 modular exponentiations. Hence, our scheme is very practical in many applications, especially for the dynamic large group applications.

Original languageEnglish
Title of host publicationLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
EditorsSihan Qing, Dieter Gollmann, Jianying Zhou
PublisherSpringer Verlag
Pages292-300
Number of pages9
ISBN (Print)3540201505
DOIs
StatePublished - 2003
Externally publishedYes

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume2836
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Keywords

  • Anonymity
  • Forward security
  • Group signature scheme
  • Revocation
  • Unlinkability

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