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Erschienen in:
2003 | OriginalPaper | Buchkapitel
Foundations of Group Signatures: Formal Definitions, Simplified Requirements, and a Construction Based on General Assumptions
verfasst von : Mihir Bellare, Daniele Micciancio, Bogdan Warinschi
Erschienen in: Advances in Cryptology — EUROCRYPT 2003
Verlag: Springer Berlin Heidelberg
Enthalten in: Professional Book Archive
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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 sole assumption that trapdoor permutations exist.