Paper 2012/407 Original: eprint.iacr.org/2012/407 ↗
Cross-Unlinkable Hierarchical Group Signatures
Abstract
We introduce the notion of Cross-Unlinkability for group signature schemes. Considering groups organized in a tree structure, where belonging to the parent group is required to join a new group, Cross-Unlinkability enables a cascade revocation process that takes into account the underlying tree structure, while ensuring anonymity for non-revoked users, in particular, towards the managers of the other groups. We show how to achieve Cross-Unlinkability using the Verifier-Local Revocation group signature scheme of Bringer and Patey at Secrypt 2012, by exploiting its property of Backward Unlinkability.
Metadata
- Available format(s)
PDF- Category
- Public-key cryptography
- Publication info
- Preprint.
- History
- 2012-07-25: last updated
- 2012-07-24: published
- Short URL
- https://ia.cr/2012/407
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2012/407,
author = {Julien Bringer and Herve Chabanne and Alain Patey},
title = {Cross-Unlinkable Hierarchical Group Signatures},
howpublished = {Cryptology {ePrint} Archive, Paper 2012/407},
year = {2012},
url = {https://eprint.iacr.org/2012/407}
}