IRJET - DDOS Traffic Control using DSA Algorithm with Structure Information in SDN

This document discusses using a Digital Signature Algorithm (DSA) to prevent DNS-based Distributed Denial of Service (DDoS) attacks in software-defined networking (SDN). It proposes a framework that introduces intelligence to SDN switches to detect and mitigate DDoS attacks at the network layer. The DSA algorithm uses key-based authentication to avoid botnet intrusions. When an attack is detected, the proposed system can automatically block malicious IP addresses. It analyzes network traffic before and after attacks using tools like deep packet inspection and a filtering approach.