Paper 2023/746
Homomorphic Signatures for Subset and Superset Mixed Predicates and Its Applications
, KDDI Research (Japan)Abstract
In homomorphic signatures for subset predicates (HSSB), each message (to be signed) is a set. Any signature on a set $M$ allows us to derive a signature on any subset $M'\subseteq M$. Its superset version, which should be called homomorphic signatures for superset predicates (HSSP), allows us to derive a signature on any superset $M'\supseteq M$. In this paper, we propose homomorphic signatures for subset and superset mixed predicates (HSSM) as a simple combination of HSSB and HSSP. In HSSM, any signature on a message of a set-pair $(M, W)$ allows us to derive a signature on any $(M', W')$ such that $M'\subseteq M$ and $W'\supseteq W$. We propose an original HSSM scheme which is unforgeable under the decisional linear assumption and completely context-hiding. We show that HSSM has various applications, which include disclosure-controllable HSSB, disclosure-controllable redactable signatures, (key-delegatable) superset/subset predicate signatures, and wildcarded identity-based signatures.
Metadata
- Available format(s)
-
PDF
- Category
- Cryptographic protocols
- Publication info
- Published elsewhere. ACISP 2023
- Keywords
- Homomorphic signaturesUnforgeablityComplete context-hidingDecisional linear assumption.
- Contact author(s)
- xma-ishizaka @ kddi com
- History
- 2023-05-25: approved
- 2023-05-24: received
- See all versions
- Short URL
- https://ia.cr/2023/746
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2023/746,
author = {Masahito Ishizaka and Kazuhide Fukushima},
title = {Homomorphic Signatures for Subset and Superset Mixed Predicates and Its Applications},
howpublished = {Cryptology ePrint Archive, Paper 2023/746},
year = {2023},
note = {\url{https://eprint.iacr.org/2023/746}},
url = {https://eprint.iacr.org/2023/746}
}
