Resilience of Tor relays on BGP hijacks & BGP monitoring of potential hijacks containing Tor prefixes

Tor is a network that provides anonymity and security to its users from untrusted destinations and third parties on the Internet. It is one of the largest anonymity networks deployed. Within the proposed metrics on the Tor Metrics website, none are about security. It would be valuable for the community if security-related metrics were proposed. In a correlation attack, if an attacker has access to traffic going in and out of the Tor network, he can correlate both traffics and the user loses his anonymity. To be able to see both sides of the traffic, the attacker can make BGP hijack to redirect traffic. Defenses exist for this type of attack, but none can definitively counter the attack at this time. This Master thesis proposes new security metrics for the Tor network, in order to tell which part of the network is more robust against BGP hijack, giving hence a visualization of security threat to the users.