Paper 2019/567
(Linkable) Ring Signature from Hash-Then-One-Way Signature
Xingye Lu, Man Ho Au, and Zhenfei Zhang
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
- Published elsewhere. Major revision. TrustCom 2019
- Keywords
- ring signaturelinkable ring signaturelattice-based cryptography
- Contact author(s)
-
xingye lu @ connect polyu hk
mhaau @ polyu edu hk
zhenfei @ algorand com - History
- 2019-05-27: received
- Short URL
- https://ia.cr/2019/567
- License
-
CC BY
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}
}
