A SURVEY ON BLOCKCHAIN BASED DDOS ATTACK FOR IOT DEPEND ON SOFTWARE DEFINED NETWORKING

Internet of Things (IoT) is based on the integration of several processes, like networking, sensing, identification, and computation. Billions of Internet-of-Things (IoT) devices are connected to make available creative ubiquitous services and simplify our everyday tasks (e.g., smart healthcare, smart homes). The effect of Distributed Denial-of-Service (DDoS) attacks is expanding as the number of vulnerable IoT devices. It continues to increase New technologies, such as Blockchain and SDN, creates new possibilities for reliable, cost-effective, scalable, and efficient DDoS attacks to work together in the IoT world. In this paper software-defined DDoS attack affects the online transaction in the Blockchain. Decentralized payments, wealth management, healthcare, and cloud computing, among other applications, have all benefited from blockchain technology. The various types of DDOS attacks in the IoT are identified and defined in this survey. For the first time, we present an extensive and systematic study on the use of blockchain technology in the Internet of Things and explore the advantages of SDN in this paper. Finally, some critical concerns and research problems were addressed in this paper.