IoT Network Defense with Blockchain
The Use of Smart Contracts against DDoS Attacks
DOI:
https://doi.org/10.54628/issn2763-5600.v19.1.2025.338Abstract
ABSTRACT
The expansion of the Internet of Things (IoT) in areas such as residential, industrial, and urban automation has improved connectivity but also increased network exposure to cyber threats, especially distributed denial-of-service (DDoS) attacks. These attacks exploit authentication flaws in devices with limited processing and storage capacity, compromising security. This article analyzes the combined use of blockchain technology and smart contracts as solution to mitigate such attacks in IoT networks. Based on an exploratory literature review, the study examines decentralized solutions on the Ethereum network, highlighting advantages such as immutability, decentralization, traceability, and automated authentication processes. Additionally, the article discusses the legal implications of using smart contracts in light of the Brazilian General Data Protection Law (LGPD), emphasizing regulatory challenges and the importance of compliance.
Keywords: Internet of Things; Information Security; Blockchain; Smart Contracts; DDoS Attacks.
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