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CANS
2009
Springer

Group Signatures with Verifier-Local Revocation and Backward Unlinkability in the Standard Model

10 years 18 days ago
Group Signatures with Verifier-Local Revocation and Backward Unlinkability in the Standard Model
Group signatures allow users to anonymously sign messages in the name of a group. Membership revocation has always been a critical issue in such systems. In 2004, Boneh and Shacham formalized the concept of group signatures with verifier-local revocation where revocation messages are only sent to signature verifiers (as opposed to both signers and verifiers). This paper presents an efficient verifier-local revocation group signature (VLR-GS) providing backward unlinkability (i.e. previously issued signatures remain anonymous even after the signer's revocation) with a security proof in the standard model (i.e. without resorting to the random oracle heuristic). Keywords. Group signatures, verifier-local revocation, bilinear maps, backward unlinkability, standard model.
Benoît Libert, Damien Vergnaud
Added 16 Feb 2011
Updated 16 Feb 2011
Type Journal
Year 2009
Where CANS
Authors Benoît Libert, Damien Vergnaud
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