(2026-05) Comments on 'Server-Aided Public Key Authenticated Searchable Encryption With Constant Ciphertext and Constant Trapdoor'
2026-05-21
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.