Privacy-preserving IoT system based on blockchain and proxy re-encryption

Linqing Cai; Yanhua Yang

doi:10.1117/12.3026400

27 March 2024 Privacy-preserving IoT system based on blockchain and proxy re-encryption

Linqing Cai, Yanhua Yang

Proceedings Volume 13105, International Conference on Computer Graphics, Artificial Intelligence, and Data Processing (ICCAID 2023); 131053Y (2024) https://doi.org/10.1117/12.3026400
Event: 3rd International Conference on Computer Graphics, Artificial Intelligence, and Data Processing (ICCAID 2023), 2023, Qingdao, China

Abstract

Internet of Things (IoT) technology is widely used across various domains, generating a substantial volume of data from IoT devices. These data often contains sensitive information pertaining to individuals and organizations. As a result, ensuring the privacy and security of IoT data has become a top priority. Many users prefer to connect their IoT devices to semi-trusted IoT cloud platforms. However, existing IoT cloud platforms often fail to adequately safeguard data privacy. Furthermore, most IoT data privacy protection schemes tend to overlook privacy and security concerns within this context. To address these challenges, this paper introduces a solution for IoT data privacy protection. This solution builds upon the existing architecture of IoT cloud platforms and incorporates blockchain and proxy re-encryption technology to enhance the privacy and security of IoT data. This approach achieves decentralized access control through blockchain technology and employs proxy re-encryption for end-to-end encrypted data transmission. We have developed a prototype system for this solution, including IoT client and server applications, Distributed Applications (DApps), and blockchain smart contracts. Experimental results demonstrate that this solution delivers excellent encryption and decryption performance, thereby ensuring data privacy and security. In comparison to existing solutions employing Attribute-Based Encryption (ABE), our approach offers enhanced feasibility and effectiveness. It presents an improved path for existing IoT cloud platforms to securely and reliably handle sensitive data, with promising applications across various domains.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Linqing Cai and Yanhua Yang "Privacy-preserving IoT system based on blockchain and proxy re-encryption", Proc. SPIE 13105, International Conference on Computer Graphics, Artificial Intelligence, and Data Processing (ICCAID 2023), 131053Y (27 March 2024); https://doi.org/10.1117/12.3026400

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KEYWORDS

Internet of things

Clouds

Blockchain

Data privacy

Computer security

Data transmission

Design

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