Constant-size id-based linkable and revocable-iff-linked ring signature

Man Ho Au, Joseph K. Liu, Willy Susilo, Tsz Hon Yuen

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

42 Citations (Scopus)


In this paper, we propose a new notion called Revocable-iff-Linked Ring Signature (R-iff-L Ring Signature). In R-iff-L ring signatures, a signer can sign on behalf of the whole group, just like ordinary ring signatures. However, if he signs twice or more, he can be linked and his identity can be revoked by everyone. We formally define a new security model for the new notion in identity-based (ID-based) setting and propose a constant-size ID-based construction, that is, the size of the signature is independent of the size of the group. In addition, we enhance the security model of ID-based linkable ring signature scheme and provide an implementation with constant size setting. Both schemes are provably secure in our new model.

Original languageEnglish
Title of host publicationProgress in Cryptology
Subtitle of host publicationINDOCRYPT 2006 - 7th International Conference on Cryptology, Proceedings
EditorsRana Barua, Tanja Lange
Number of pages15
ISBN (Print)9783540497677
Publication statusPublished - 1 Jan 2006
Externally publishedYes
EventInternational Conference on Cryptology in India 2006 - Kolkata, India
Duration: 11 Dec 200613 Dec 2006
Conference number: 7th (Proceedings)

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume4329 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


ConferenceInternational Conference on Cryptology in India 2006
Abbreviated titleINDOCRYPT 2006
Internet address


  • Anonymity
  • Linkable
  • Revocable
  • Ring Signature

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