BREPubSub: A Secure Publish-Subscribe Model using Blockchain and Re-encryption for IoT Data Sharing Management

• Published in: International journal of advanced computer science & applications 2023, Vol.14 (4)
• Main Author: Pham, Hoang-Anh
• Format: Article
• Language: English
• Subjects: Availability; Blockchain; Cryptography; Data collection; Data encryption; Data exchange; Data storage; Information sharing; Integrity; Security
• ISSN: 2158-107X; 2156-5570
• DOI: 10.14569/IJACSA.2023.0140485

As a result of the incredible growth and diversity of IoT systems and applications over the past several years, an enor-mous amount of sensing data has been generated, which is critical for developing IoT-based intelligent systems. So far, it has taken a significant amount of time and money to collect sufficient sensing data for these smart systems leading to demands of sharing or exchanging available and valuable data to reduce the time and money spent on the data collection process. However, ensuring the data sharing process’s integrity, security, and fairness is fraught with challenges. This paper proposes a Blockchain-based model that supports a secure publish-subscribe protocol for data sharing management by addressing three criteria such as confidentiality, integrity, and availability. In addition, the proposed model adopts a re-encryption technique to optimize shared data storage with multiple users and enhance the security of the data exchange process in a transparent and public environment like Blockchain. We have developed a DApp to demonstrate the feasibility of our design and evaluate its performance.