R-PEKS: RBAC enabled PEKS for secure access of cloud data

Rajesh Rao, K., Ghosh Ray, Indranil, Asif, Waqar ORCID: https://orcid.org/0000-0001-6774-3050, Nayak, Ashalatha and Rajarajan, Muttukrishnan (2019) R-PEKS: RBAC enabled PEKS for secure access of cloud data. IEEE Access, 7. pp. 133274-133289.

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In the recent past, few works have been done by combining attribute-based access control with multi-user PEKS, i.e., public key encryption with keyword search. Such attribute enabled searchable encryption is most suitable for applications where the changing of privileges is done once in a while. However, to date, no efficient and secure scheme is available in the literature that is suitable for these applications where changing privileges are done frequently. In this paper our contributions are twofold. Firstly, we propose a new PEKS scheme for string search, which, unlike the previous constructions, is free from bi-linear mapping and is efficient by 97% compared to PEKS for string search proposed by Ray et al in TrustCom 2017. Secondly, we introduce role based access control (RBAC) to multi-user PEKS, where an arbitrary group of users can search and access the encrypted files depending upon roles. We termed this integrated scheme as R-PEKS. The efficiency of R-PEKS over the PEKS scheme is up to 90%. We provide formal security proofs for the different components of R-PEKS and validate these schemes using a commercial dataset.

Item Type: Article
Identifier: 10.1109/ACCESS.2019.2941560
Additional Information: This work was supported by the European Union’s Horizon 2020 Framework Programme for Research and Innovation under Grant 740690
Keywords: Access control, cloud computing, MUSE, PEKS, RBAC, SUSE
Subjects: Computing
Related URLs:
Depositing User: Waqar Asif
Date Deposited: 05 Dec 2020 00:49
Last Modified: 06 Feb 2024 16:04
URI: https://repository.uwl.ac.uk/id/eprint/7510


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