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An Efficient Pairing-Free Ciphertext-Policy Attribute-Based Encryption Scheme for Internet of Things

Authors :
Chong Guo
Bei Gong
Muhammad Waqas
Hisham Alasmary
Shanshan Tu
Sheng Chen
Source :
Sensors, Vol 24, Iss 21, p 6843 (2024)
Publication Year :
2024
Publisher :
MDPI AG, 2024.

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.

Details

Language :
English
ISSN :
14248220
Volume :
24
Issue :
21
Database :
Directory of Open Access Journals
Journal :
Sensors
Publication Type :
Academic Journal
Accession number :
edsdoj.4ac5f464d27d44c694ffc425141ee900
Document Type :
article
Full Text :
https://doi.org/10.3390/s24216843