Jul 2026· International Scientific Journal of Engineering and Management· 0 citations
TL;DR
A Blockchain-Based IoT Security Architecture that integrates distributed ledger technology, smart contracts, edge computing, and zero-trust authentication mechanisms to enhance security, privacy, and system reliability is proposed.
Abstract
ABSTRACT
The rapid growth of the Internet of Things (IoT) has enabled billions of interconnected devices to exchange data across smart cities, healthcare systems, industrial automation platforms, and intelligent transportation networks. Despite its transformative potential, IoT environments remain highly vulnerable to cyberattacks due to limited device resources, centralized architectures, weak authentication mechanisms, and insecure communication channels. Traditional security frameworks often struggle to provide scalable trust management and tamper-resistant data protection in large-scale IoT deployments. This paper proposes a Blockchain-Based IoT Security Architecture that integrates distributed ledger technology, smart contracts, edge computing, and zero-trust authentication mechanisms to enhance security, privacy, and system reliability. The proposed framework enables decentralized device authentication, immutable transaction recording, secure data sharing, and automated access control through blockchain networks. Smart contracts dynamically enforce security policies and verify device identities before granting network access. Experimental evaluation demonstrates improvements in attack resistance, data integrity, authentication efficiency, and network trustworthiness compared with conventional centralized security approaches. The proposed architecture provides a scalable and resilient security solution for next-generation IoT ecosystems.
Keywords: Blockchain, Internet of Things, Cybersecurity, Smart Contracts, Zero-Trust Architecture, Edge Computing, Distributed Ledger Technology, IoT Authentication.
The growth of the Internet of Things (IoT) has introduced significant security challenges, mainly due to the resource constraints of devices and the limitations of centralized architectures. This paper proposes a blockchain-based Zero-Trust framework for secure and scalable IoT systems. The approach is architecture-agnostic and combines decentralized identity management, hybrid data storage, and edge-assisted computation. To optimize resource usage, raw data are stored off-chain while cryptographic hashes are anchored on the blockchain, ensuring integrity and immutability. A Merkle tree structure is employed to aggregate data efficiently, reducing communication overhead and blockchain transaction costs. Experimental results demonstrate that lightweight cryptographic mechanisms, combined with Merkle-based aggregation, provide strong security guarantees with low energy consumption. The proposed framework achieves improved scalability, robustness, and efficiency, making it suitable for resource-constrained IoT environments.
Florian Bonelli, Alexandre dos Santos Roque, E. P. de Freitas· International Conference on...· 0 citations
BELS-IoT is proposed, a novel decentralized protection architecture that integrates a cryptocurrency-based blockchain layer with a multi-layer ensemble learning engine that rewards honest behavior and penalizes malicious activities while maintaining privacy through federated learning with blockchain-verified reputation scores.
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Seshagiri N· International Journal of Mod...· 0 citations
A lightweight blockchain-based authentication framework for secure communication in Internet of Things (IoT) networks that integrates a permissioned blockchain with ECC-256 to provide mutual authentication, data integrity, and non-repudiation for resource-constrained IoT devices.
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