Blockchain‑Enabled Information Systems for Secure Data Management in Smart Cities
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Modern smart cities rely on the continuous collection, analysis and sharing of data from millions of sensors, vehicles and public services. These large data volumes are essential for informed decision‑making but expose cities to vulnerabilities such as data tampering, unauthorized access and privacy breaches. Recent research shows that blockchain’s properties—decentralization, immutability and consensus—offer a transparent and tamper‑proof backbone for smart city information systems. This paper reviews state‑of‑the‑art blockchain‑enabled systems and proposes a unified framework for secure data management in smart cities. We synthesize insights from literature on decentralized trust models, access control for IoT devices, hybrid detection and prevention schemes, consensus mechanisms and blockchain energy trading, waste management, smart governance and patient digital twins. The paper then presents a conceptual architecture for blockchain‑enabled information systems and compares existing frameworks using quantitative metrics such as transaction throughput and detection accuracy. The analysis shows that integrating blockchain with edge computing and smart contracts supports secure real‑time services for transportation, healthcare, energy trading and waste management while addressing challenges such as scalability and privacy. We conclude with a discussion of outstanding challenges and recommendations for future research.
A. Rejeb et al., “Blockchain technology in the smart city: A bibliometric review,” Quality & Quantity, 2022.
A. Rejeb et al., “Blockchain and smart cities: Co-word analysis and BERTopic modeling,” Big Data and Cognitive Computing, 2024.
S. Alghamdi et al., “Enabling a secure IoT environment using a blockchain-based local-global consensus manager,” Electronics, vol. 12, no. 17, 2023.
S. Alghamdi et al., “Decentralized trust framework for smart cities: A blockchain-enabled cybersecurity and data integrity model,” Scientific Reports, vol. 15, 2025.
N. Testi et al., “Exploring the potential of blockchain technology for citizen engagement in smart governance,” Open Research Europe, 2025.
T. Salman et al., “Enhancing cybersecurity in smart cities: A blockchain-based framework for securing IoT data,” EnPress Journal of Cybersecurity, 2025.
H. Messahel et al., “An IoT system for access control using blockchain and message queuing system,” EURASIP Journal on Information Security, 2025.
A. Maskoun et al., “Hybrid smart IoT detection and prevention framework for smart cities using blockchain technology,” International Journal of Advanced Applied Sciences, 2025.
W. Alabsi et al., “Blockchain-based authentication and trust management mechanism for smart cities,” Sensors, vol. 22, no. 7, 2022.
S. Singh et al., “Resolving security issues in the IoT using blockchain,” Electronics, vol. 11, no. 12, 2022.
Q. Yang et al., “Blockchain-based smart grid power trading technology,” Journal of Engineering and Applied Sciences, 2024.
J. Lee et al., “IoT-Chain and Monitoring-Chain using multilevel blockchain for IoT security,” Sensors, vol. 22, no. 11, 2022.
M. Zhao et al., “A blockchain framework for scalable, high-density IoT networks of the future,” Sensors, vol. 25, no. 3, 2025.
S. Habibullah et al., “Blockchain-based energy consumption approaches in IoT,” Scientific Reports, vol. 14, 2024.
F. Jiang et al., “Implementation of blockchain technology in waste management,” Energies, vol. 16, no. 8, 2023.
K. Kumar et al., “E-waste management using blockchain technology,” Data & Metadata, vol. 5, no. 2, 2024.
S. Amofa et al., “Blockchain-secure patient Digital Twin in healthcare using smart contracts,” PLoS One, vol. 19, no. 3, 2024.
A. Rejeb et al., “Blockchain for sustainable smart cities: Motivations and challenges,” International Journal of Environmental Research and Public Health, vol. 19, no. 21, 2022.
