Guo, Chong, Gong, Bei, Waqas, Muhammad ORCID: https://orcid.org/0000-0003-0814-7544, Alasmary, Hisham, Tu, Shanshan and Chen, Sheng (2024) An efficient pairing-free ciphertext-policy attribute-based encryption scheme for Internet of Things. Sensors, 24 (21):6843. ISSN 1424-8220 (Online) (doi:10.3390/s24216843)

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Abstract

The Internet of Things (IoT) is a heterogeneous network composed of numerous dynamically connected devices. While it brings convenience, the IoT also faces serious challenges in data security. Ciphertext-policy attribute-based encryption (CP-ABE) is a promising cryptography method that supports fine-grained access control, offering a solution to the IoT’s security issues. However, existing CP-ABE schemes are inefficient and unsuitable for IoT devices with limited computing resources. To address this problem, this paper proposes an efficient pairing-free CP-ABE scheme for the IoT. The scheme is based on lightweight elliptic curve scalar multiplication and supports multi-authority and verifiable outsourced decryption. The proposed scheme satisfies indistinguishability against chosen-plaintext attacks (CPA) under the elliptic curve decisional Diffie–Hellman (ECDDH) problem. Performance analysis shows that our proposed scheme is more efficient and better suited to the IoT environment compared to existing schemes.

Item Type:	Article
Additional Information:	This article belongs to the Section Internet of Things.
Uncontrolled Keywords:	ciphertext-policy attribute-based encryption, pairing-free, access control, Internet of Things
Subjects:	Q Science > Q Science (General) Q Science > QA Mathematics Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Faculty / School / Research Centre / Research Group:	Faculty of Engineering & Science Faculty of Engineering & Science > School of Computing & Mathematical Sciences (CMS)
Last Modified:	20 Nov 2024 15:24
URI:	http://gala.gre.ac.uk/id/eprint/48667

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