Generic Construction of Dual-Server Public Key Authenticated Encryption with Keyword Search

Keita Emura

Paper 2023/425

Generic Construction of Dual-Server Public Key Authenticated Encryption with Keyword Search

Keita Emura

, Kanazawa University, National Institute of Advanced Industrial Science and Technology

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: Published elsewhere. Minor revision. IET Information Security
Contact author(s): k-emura @ se kanazawa-u ac jp
History: 2025-05-06: last of 4 revisions; 2023-03-24: received; See all versions
Short URL: https://ia.cr/2023/425
License: CC BY

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}
}