01732nas a2200217   4500000000100000000000100001008004100002100002300043700002000066700001800086700002000104700001900124700002000143700001900163700001900182245008900201856004600290490000700336520115700343022001401500       2024                            d1 aMohamed Fartitchou1 aIsmail Lamaakal1 aYassine Maleh1 aKhalid Makkaoui1 aZakaria Allali1 aPaweł Pławiak1 aFahad Alblehai1 aAhmed El-Latif00aIOTASDN: IOTA 2.0 Smart Contracts for Securing Software-Defined Networking Ecosystem  uhttps://www.mdpi.com/1424-8220/24/17/57160 v243 a<p>Software-Defined Networking (SDN) has revolutionized network management by providing unprecedented flexibility, control, and efficiency. However, its centralized architecture introduces critical security vulnerabilities. This paper introduces a novel approach to securing SDN environments using IOTA 2.0 smart contracts. The proposed system utilizes the IOTA Tangle, a directed acyclic graph (DAG) structure, to improve scalability and efficiency while eliminating transaction fees and reducing energy consumption. We introduce three smart contracts: Authority, Access Control, and DoS Detector, to ensure trusted and secure network operations, prevent unauthorized access, maintain the integrity of control data, and mitigate denial-of-service attacks. Through comprehensive simulations using Mininet and the ShimmerEVM IOTA Test Network, we demonstrate the efficacy of our approach in enhancing SDN security. Our findings highlight the potential of IOTA 2.0 smart contracts to provide a robust, decentralized solution for securing SDN environments, paving the way for the further integration of blockchain technologies in network management.</p>
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