Cryptology ePrint Archive: Report 2020/651

Cryptanalysis of ``FS-PEKS: Lattice-based Forward Secure Public-key Encryption with Keyword Search for Cloud-assisted Industrial Internet of Things''

Zi-Yuan Liu and Yi-Fan Tseng and Raylin Tso

Abstract: In this manuscript, we review lattice-based public-key encryption with the keyword search scheme proposed by Zhang \textit{et al}. in IEEE Transactions on Dependable and Secure Computing in 2019. We demonstrate that this scheme is insecure for inside keyword guess attacks, although Zhang \textit{et al.} demonstrated a secure proof. In addition, we identify that lattice-based proxy-oriented identity-based encryption with keyword search proposed by Zhang \textit{et al}. in Information Sciences in 2019 suffers from the same issue.

Category / Keywords: public-key cryptography / Public-key Encryption with Keyword Search, Lattice-based, Insider Keyword Guessing Attack, Cryptanalysis

Date: received 30 May 2020

Contact author: zyliu at cs nccu edu tw

Available format(s): PDF | BibTeX Citation

Version: 20200603:095255 (All versions of this report)

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