Report and Trace Ring Signatures

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Abstract

We introduce report and trace ring signature schemes, balancing the desire for signer anonymity with the ability to report malicious behaviour and subsequently revoke anonymity. We contribute a formal security model for report and trace ring signatures that incorporates established properties of anonymity, unforgeability and traceability, and captures a new notion of reporter anonymity. We present a construction of a report and trace ring signature scheme, proving its security and analysing its efficiency, comparing with the state of the art in the accountable ring signatures literature. Our analysis demonstrates that our report and trace scheme is efficient, particularly for the choice of cryptographic primitives that we use to instantiate our construction.
Original languageEnglish
Title of host publication20th International Conference On Cryptology And Network Security
Subtitle of host publicationCANS 2021
PublisherSpringer, [Cham]
Pages179-199
Number of pages21
Volume13099
ISBN (Electronic)978-3-030-92548-2
ISBN (Print)978-3-030-92547-5
DOIs
Publication statusPublished - 9 Dec 2021
EventCryptology and Network Security 2021 - Vienna, Austria
Duration: 13 Dec 202115 Dec 2021

Publication series

NameLecture Notes in Computer Science
PublisherSpringer

Conference

ConferenceCryptology and Network Security 2021
Abbreviated titleCANS 2021
Country/TerritoryAustria
CityVienna
Period13/12/2115/12/21

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