POSTER: Traffic Splitting to Counter Website Fingerprinting

Autor: Thomas Engel, Asya Mitseva, Fabian Lanze, Andriy Panchenko, Jens Hiller, Jan Pennekamp, Klaus Wehrle, Wladimir De la Cadena
Předmět:
Zdroj: BASE-Bielefeld Academic Search Engine
CCS
Popis: Website fingerprinting (WFP) is a special type of traffic analysis, which aims to infer the websites visited by a user. Recent studies have shown that WFP targeting Tor users is notably more effective than previously expected. Concurrently, state-of-the-art defenses have been proven to be less effective. In response, we present a novel WFP defense that splits traffic over multiple entry nodes to limit the data a single malicious entry can use. Here, we explore several traffic-splitting strategies to distribute user traffic. We establish that our weighted random strategy dramatically reduces the accuracy from nearly 95% to less than 35% for four state-of-the-art WFP attacks without adding any artificial delays or dummy traffic.
Databáze: OpenAIRE