Paper 2019/567 Original: eprint.iacr.org/2019/567 ↗
(Linkable) Ring Signature from Hash-Then-One-Way Signature
Abstract
In this paper, we revisit the generic construction of ring signatures from hash-then-one-way type ($\mathsf{Type-H}$) signatures proposed by Abe et al. (AOS) in 2004 and made the following contributions. First, we give a proof for the generic construction, in a strengthened security model. Previously, this was only done for concrete instantiations, in a weaker model. Second, we extend AOS's framework to generically construct one-time linkable ring signatures from $\mathsf{Type-H}$ signatures and one-time signatures. Lastly, we instantiate the generic construction with an NTRU-based $\mathsf{Type-H}$ signature: Falcon~and obtain a post-quantum linkable ring signature scheme. Our analysis shows that the resulting linkable signature is more efficient than any existing lattice based solutions for small to moderate number of users.
Metadata
- Available format(s)
PDF- Category
- Public-key cryptography
- Publication info
- Preprint.
- History
- 2019-05-27: last updated
- 2019-05-27: published
- Short URL
- https://ia.cr/2019/567
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2019/567,
author = {Xingye Lu and Man Ho Au and Zhenfei Zhang},
title = {(Linkable) Ring Signature from Hash-Then-One-Way Signature},
howpublished = {Cryptology {ePrint} Archive, Paper 2019/567},
year = {2019},
url = {https://eprint.iacr.org/2019/567}
}