Paper 2004/179
Identity Based Threshold Ring Signature
Sherman S. M. Chow, Lucas C. K. Hui, and S. M. Yiu
Abstract
In threshold ring signature schemes, any group of $t$ entities spontaneously conscripting arbitrarily $n-t$ entities to generate a publicly verifiable $t$-out-of-$n$ signature on behalf of the whole group, yet the actual signers remain anonymous. The spontaneity of these schemes is desirable for ad-hoc groups such as mobile ad-hoc networks. In this paper, we present an identity based (ID-based) threshold ring signature scheme. The scheme is provably secure in the random oracle model and provides trusted authority compatibility. To the best of authors' knowledge, our scheme is the first ID-based threshold ring signature scheme which is also the most efficient (in terms of number of pairing operations required) ID-based ring signature scheme (when $t = 1$) and threshold ring signature scheme from pairings.
Note: An appendix about related concurrent work is added.
Metadata
- Available format(s)
-
PDF
PS
- Category
- Public-key cryptography
- Publication info
- Published elsewhere. ICISC 2004, To Appear
- Keywords
- Threshold ring signatureidentity-based signaturebilinear pairingsanonymityspontaneity
- Contact author(s)
- smchow @ cs hku hk
- History
- 2005-02-02: last of 14 revisions
- 2004-07-26: received
- See all versions
- Short URL
- https://ia.cr/2004/179
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2004/179,
author = {Sherman S. M. Chow and Lucas C. K. Hui and S. M. Yiu},
title = {Identity Based Threshold Ring Signature},
howpublished = {Cryptology {ePrint} Archive, Paper 2004/179},
year = {2004},
url = {https://eprint.iacr.org/2004/179}
}
