Prevention of denial-of-service attacks in Garbled Routing (GR) network

Garbled Routing network is the first generic anonymous communication framework that hosts other anonymous networks as plug-ins, and provides relatively higher anonymity and network unobservability. This paper focuses on the existing vulnerabilities of this framework to Denial-of-Service (DoS) attacks on the circuit establishment process. The impacts of the DoS attacks are analysed and three techniques are proposed that significantly strengthens the circuit establishment against the identified DoS attacks.