BLOCKCHAIN-BASED SECURE ACCESS CONTROL FOR DISTRIBUTED NETWORKS

International Journal of Computer Science (IJCS) Published by SK Research Group of Companies (SKRGC)

Abstract

Distributed networks require decentralized and tamper-resistant access control mechanisms to ensure secure resource sharing. This paper proposes a blockchain-based secure access control framework that leverages smart contracts to enforce authentication and authorization policies. The decentralized ledger ensures transparency, immutability, and resistance to single-point failures by distributing records across multiple nodes. Access permissions are dynamically managed and verified through consensus mechanisms, eliminating reliance on centralized authorities. Performance evaluation demonstrates that the proposed approach enhances security and auditability while maintaining acceptable latency, making it ideal for IoT-based network environments.

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Keywords

Blockchain, Distributed Networks, Access Control, Smart Contracts, Decentralization, Cybersecurity, IoT Security.