Paper 2005/103
Cryptanalysis and improvement of an ID-based ad-hoc anonymous identification scheme at CT-RSA 05
Fangguo Zhang and Xiaofeng Chen
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
PS
- Category
- Applications
- Publication info
- Published elsewhere. Unknown where it was published
- Contact author(s)
- isdzhfg @ zsu edu cn
- History
- 2005-04-07: received
- Short URL
- https://ia.cr/2005/103
- License
-
CC BY
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},
note = {\url{https://eprint.iacr.org/2005/103}},
url = {https://eprint.iacr.org/2005/103}
}
