Paper 2023/425 Original: eprint.iacr.org/2023/425 ↗
Generic Construction of Dual-Server Public Key Authenticated Encryption with Keyword Search
Abstract
Chen et al. (IEEE Transactions on Cloud Computing 2022) introduced dual-server public key authenticated encryption with keyword search (DS-PAEKS), and proposed a DS-PAEKS scheme under the decisional Diffie-Hellman assumption. In this paper, we propose a generic construction of DS-PAEKS from PAEKS, public key encryption, and signatures. By providing a concrete attack, we show that the DS-PAEKS scheme of Chen et al. is vulnerable. That is, the proposed generic construction yields the first DS-PAEKS schemes. Our attack with a slight modification works against the Chen et al. dual-server public key encryption with keyword search (DS-PEKS) scheme (IEEE Transactions on Information Forensics and Security 2016). Moreover, we demonstrate that the Tso et al. generic construction of DS-PEKS from public key encryption (IEEE Access 2020) is also vulnerable.
Metadata
- Available format(s)
PDF- Category
- Public-key cryptography
- Publication info
- Preprint.
- History
- 2025-05-06: last updated
- 2023-03-24: published
- Short URL
- https://ia.cr/2023/425
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2023/425,
author = {Keita Emura},
title = {Generic Construction of Dual-Server Public Key Authenticated Encryption with Keyword Search},
howpublished = {Cryptology {ePrint} Archive, Paper 2023/425},
year = {2023},
url = {https://eprint.iacr.org/2023/425}
}