Symphony: Path Validation at Scale
Anxiao He
Network and Distributed System Security (NDSS) Symposium 2024 · Day 1 · Network Security
In this presentation at the NDSS Symposium, Anxiao He introduced "Symphony: Path Validation at Scale," a groundbreaking work addressing a fundamental security challenge in future Internet architectures. The talk centers on **path validation**, a critical mechanism designed to empower end-hosts to specify and verify the precise forwarding paths for their network traffic. Unlike the current Internet, where packet forwarding is largely opaque and uncontrolled, path validation promises significant advancements in flexibility, security, and privacy by requiring on-path routers to embed unforgeable cryptographic proofs into packet headers, testifying to strict adherence to the designated path.