Citation

Chan, Koon Ming and Heng, Swee Huay and Tan, Syh Yuan and Tan, Shing Chiang (2024) Comment on “Expressive Public-Key Encryption With Keyword Search: Generic Construction From KP-ABE and an Efficient Scheme Over Prime-Order Groups”. IEEE Access, 12. pp. 91551-91555. ISSN 2169-3536

Text Comment on “Expressive Public-Key Encryption With Keyword Search_ Generic Construction From KP-ABE and an Efficient Scheme Over Prime-Order Groups”.pdf - Published Version Restricted to Repository staff only Download (2MB)

Abstract

The public key encryption with keyword search (PEKS) scheme is a cryptographic primitive that allows a cloud server to search for a ciphertext without knowing the corresponding keyword used in the search. An expressive PEKS scheme is a variant of the PEKS scheme that supports conjunctive and disjunctive searches (expressive search). Utilising the expressive properties of an attribute-based encryption (ABE) scheme, most of the expressive PEKS schemes can be constructed from an ABE scheme. In this paper, we first give a brief review of the transformed expressive PEKS scheme by Shen et al. in 2019. Then, we present a keyword guessing attack on Shen et al.’s transformed expressive PEKS scheme and show that an adversary can correctly guess the supposedly hidden keyword.

Item Type:	Article
Uncontrolled Keywords:	Cryptographic, keyword guessing
Subjects:	Q Science > QA Mathematics > QA150-272.5 Algebra
Divisions:	Faculty of Information Science and Technology (FIST)
Depositing User:	Ms Nurul Iqtiani Ahmad
Date Deposited:	31 Jul 2024 04:11
Last Modified:	31 Jul 2024 04:11
URII:	http://shdl.mmu.edu.my/id/eprint/12681

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