Blockchain-based Cooperative DDoS Mitigation

The exponential increase of the traffic volume makes Distributed Denial-of-Service (DDoS) attacks a top security threat to service providers. Existing DDoS defense mechanisms lack resources and flexibility to cope with attacks by themselves and by utilizing other's companies resources, the burden of the mitigation can be shared.

Technologies as blockchain and smart contracts allow distributing attack information across multiple domains, while SDN (Software-Defined Networking) and NFV (Network Function Virtualization) enables to scale the defense capabilities on demand.

This proposal presents the design of an architecture combining these elements and introducing novel opportunities for flexible and efficient DDoS mitigation solutions across multiple domains.