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Title	Co-Iot: A Collaborative Ddos Mitigation Scheme In Iot Environment Based On Blockchain Using Sdn
ID_Doc	14580
Authors	El Houda Z.A.; Hafid A.; Khoukhi L.
Year	2019
Published	Proceedings - IEEE Global Communications Conference, GLOBECOM
DOI	http://dx.doi.org/10.1109/GLOBECOM38437.2019.9013542
Abstract	The recent proliferation of Internet of Things (IoT) is paving the way for the emergence of smart cities, where billions of IoT devices are interconnected to provide novel pervasive services and automate our daily lives tasks (e.g., smart healthcare, smart home). However, as the number of insecure IoT devices continues to grow at a rapid rate, the impact of Distributed Denial-of-Service (DDoS) attacks is growing rapidly. With the advent of IoT botnets such as Mirai, the view towards IoT has changed from enabler of smart cities into a powerful amplifying tool for cyberattacks. This motivates the development of new techniques to provide flexibility and efficiency of decision making on the attack collaboration in a software defined networks (SDN) context. The new emerging technologies, such as SDN and blockchain, introduce new opportunities for low-cost, efficient and flexible DDoS attacks collaboration for the IoT based environment. In this paper, we propose Co-IoT, a blockchain-based framework for collaborative DDoS mitigation; it uses the concept of smart contracts (i.e., Ethereum's smart contracts) to facilitate the collaboration among SDN-based domains and transfer attacks information in a decentralized manner. The implementation of Co-IoT is deployed on Ethereum official test network Ropsten [1]. The experimental results confirm that Co-IoT achieves flexibility, efficiency, security and cost effectiveness making it a promising approach to mitigate large scale DDoS attacks. © 2019 IEEE.
Author Keywords	Blockchain; DDoS; IoT; SDN; Smart contract

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