EdgePoW: Adaptive Ingress-Aware Defense with Non-Interactive PoW Against Volumetric SYN Floods
EdgePoW uses a combination of client-side Proof of Work and an SDN controller to defend against large TCP SYN floods. It shifts the computational burden from victims to attackers by requiring clients to solve cryptographic puzzles before connections are fully established. This allows the network to proactively filter malicious traffic deep inside the infrastructure while maintaining good quality for legitimate users.