Paper 2004/108 Original: eprint.iacr.org/2004/108 ↗
Two Improved Partially Blind Signature Schemes from Bilinear Pairings
Abstract
A blind signature scheme is a protocol for obtaining a digital signature from a signer, but the signer can neither learn the messages he/she sign nor the signatures the recipients obtain afterwards. Partially blind signature is a variant such that part of the message contains pre-agreed information (agreed by the signer and the signature requester) in unblinded form, while threshold blind signature distributes the signing power to a group of signers such that a signature can only be produced by interacting with a predetermined numbers of signers. In this paper, we propose a threshold partially blind signature scheme from bilinear pairings and an ID-based partially blind signature scheme, which are provably secure in the random oracle model. To the best of authors' knowledge, we give the first discussion on these two notions.
Metadata
- Available format(s)
PDF- Category
- Public-key cryptography
- Publication info
- Preprint.
- History
- 2005-04-25: last updated
- 2004-05-07: published
- Short URL
- https://ia.cr/2004/108
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2004/108,
author = {Sherman S. M. Chow and Lucas C. K. Hui and S. M. Yiu and K. P. Chow},
title = {Two Improved Partially Blind Signature Schemes from Bilinear Pairings},
howpublished = {Cryptology {ePrint} Archive, Paper 2004/108},
year = {2004},
url = {https://eprint.iacr.org/2004/108}
}