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Foundations of Group Signatures: Formal Definitions, Simplified Requirements, and a Construction Based on General Assumptions

    Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

    608 Citations (Scopus)

    Abstract

    This paper provides theoretical foundations for the group signature primitive. We introduce strong, formal definitions for the core requirements of anonymity and traceability. We then show that these imply the large set of sometimes ambiguous existing informal requirements in the literature, thereby unifying and simplifying the requirements for this primitive. Finally we prove the existence of a construct meeting our definitions based only on the assumption that trapdoor permutations exist.
    Translated title of the contributionFoundations of Group Signatures: Formal Definitions, Simplified Requirements, and a Construction Based on General Assumptions
    Original languageEnglish
    Title of host publicationAdvances in Cryptology - EUROCRYPT 2003
    PublisherSpringer Berlin Heidelberg
    Pages614 - 629
    Number of pages16
    Volume2656
    Publication statusPublished - May 2003

    Bibliographical note

    ISBN: 3540140395
    Publisher: Springer
    Name and Venue of Conference: Advances in Cryptology - EUROCRPYT 2003: International Conference on the Theory and Applications of Cryptographic Techniques, Warsaw, Poland, 4-8 May
    Conference Organiser: International Association for Cryptographic Research

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