Paper 2012/204 Original: eprint.iacr.org/2012/204 ↗
Unique Group Signatures
Abstract
We initiate the study of unique group signature such that signatures of the same message by the same user will always have a large common component (i.e., unique identifier). It enables an efficient detection algorithm, revealing the identities of illegal users, which is fundamentally different from previous primitives. We present a number of unique group signature schemes (without random oracles) under a variety of security models that extend the standard security models of ordinary group signatures. Our work is a beneficial step towards mitigating the well-known group signature paradox, and it also has many other interesting applications and efficiency implications.
Metadata
- Available format(s)
PDF- Publication info
- Preprint.
- History
- 2012-07-13: last updated
- 2012-04-13: published
- Short URL
- https://ia.cr/2012/204
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2012/204,
author = {Matthew Franklin and Haibin Zhang},
title = {Unique Group Signatures},
howpublished = {Cryptology {ePrint} Archive, Paper 2012/204},
year = {2012},
url = {https://eprint.iacr.org/2012/204}
}