Comments on "Server-Aided Public Key Authenticated Searchable Encryption With Constant Ciphertext and Constant Trapdoor"

Takeshi Yoshida; Keita Emura

Paper 2026/1015

Comments on "Server-Aided Public Key Authenticated Searchable Encryption With Constant Ciphertext and Constant Trapdoor"

Takeshi Yoshida, Kanazawa University

Keita Emura

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

Abstract

Cheng and Meng (IEEE Transactions on Information Forensics and Security 2024) introduced server-aided public key authenticated encryption with keyword search (SA-PAEKS). In this short note, we give general attacks that the cloud server (tester) can obtain keyword information from both a ciphertext and a trapdoor.

Metadata

Available format(s): PDF
Category: Cryptographic protocols
Publication info: Preprint.
Keywords: Searchable Encryption Server-Aided PAEKS
Contact author(s): k-emura @ se kanazawa-u ac jp
History: 2026-05-21: approved; 2026-05-21: received; See all versions
Short URL: https://ia.cr/2026/1015
License: CC BY

BibTeX

@misc{cryptoeprint:2026/1015,
      author = {Takeshi Yoshida and Keita Emura},
      title = {Comments on "Server-Aided Public Key Authenticated Searchable Encryption With Constant Ciphertext and Constant Trapdoor"},
      howpublished = {Cryptology {ePrint} Archive, Paper 2026/1015},
      year = {2026},
      url = {https://eprint.iacr.org/2026/1015}
}