Paper 2005/103 Original: eprint.iacr.org/2005/103 ↗
Cryptanalysis and improvement of an ID-based ad-hoc anonymous identification scheme at CT-RSA 05
Abstract
An ad-hoc anonymous identification scheme is a new multi-user cryptographic primitive that allows participants from a user population to form ad hoc groups, and then prove membership anonymously in such groups. Recently, Nguyen \cite{Lan05} proposed an ID-based ad-hoc anonymous identification scheme from bilinear pairings. However, in this paper, we propose an attack on Nguyen's ID-based ad-hoc anonymous identification scheme. We show that any one can impersonate a valid group member to perform the anonymous identification protocol successfully. Furthermore, we propose a solution to improve this scheme against our attack.
Metadata
- Available format(s)
PDF- Category
- Applications
- Publication info
- Preprint.
- History
- 2005-04-07: last updated
- 2005-04-07: published
- Short URL
- https://ia.cr/2005/103
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2005/103,
author = {Fangguo Zhang and Xiaofeng Chen},
title = {Cryptanalysis and improvement of an ID-based ad-hoc anonymous identification scheme at CT-RSA 05},
howpublished = {Cryptology {ePrint} Archive, Paper 2005/103},
year = {2005},
url = {https://eprint.iacr.org/2005/103}
}