Paper 2004/077
Foundations of Group Signatures: The Case of Dynamic Groups
Mihir Bellare, Haixia Shi, and Chong Zhang
Abstract
A first step toward establishing foundations for group signatures was taken by Bellare, Micciancio and Warinschi (Eurocrypt 2003) with a treatment of the case where the group is static. However the bulk of existing practical schemes and applications are for dynamic groups, and these involve important new elements and security issues. This paper treats this case, providing foundations for dynamic group signatures, in the form of a model, strong formal definitions of security, and a construction proven secure under general assumptions. We believe this is an important and useful step because it helps bridge the gap between Bellare Micciancio and Warinschi and the previous practical work, and delivers a basis on which existing practical schemes may in future be evaluated or proven secure.
Metadata
- Available format(s)
-
PDF
PS
- Category
- Foundations
- Publication info
- Published elsewhere. An extended abstract appears in CT-RSA 2005. This is the full version.
- Keywords
- Group signaturesanonymityzero-knowledge
- Contact author(s)
- mihir @ cs ucsd edu
- History
- 2004-09-21: last of 2 revisions
- 2004-03-12: received
- See all versions
- Short URL
- https://ia.cr/2004/077
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2004/077,
author = {Mihir Bellare and Haixia Shi and Chong Zhang},
title = {Foundations of Group Signatures: The Case of Dynamic Groups},
howpublished = {Cryptology {ePrint} Archive, Paper 2004/077},
year = {2004},
url = {https://eprint.iacr.org/2004/077}
}
