Researchers: Much of Tor users to identify




Researchers at Columbia University claim that more than 80 percent of the Tor traffic is traced to an IP address. The Netflow network, which is implemented in Cisco routers would thereby offer a helping hand.

The researchers have to own say in multiple locations Tor relays that run on a custom Linux version added to the Tor network. The nodes, a large amount Tor traffic between 2008 and 2014 under the magnifying glass held. This requires use of Netflow data, a Cisco technology in routers of the company can be found and used to inspect IP traffic.

By recognizable objects in the anonymizing network, such as HTML files, analyze packet-level at an input of the Tor network and the traffic at an exit node again see a large part of the Tor users are traceable to an IP address. To 81.4 percent of the analyzed traffic would, based on laboratory tests, can be reduced to an IP address with a margin of error of 6.4 percent.

According to the researchers Tor is also vulnerable as traffic allows low-priority and attackers will have time to manipulate the traffic or investigate when the packets pass through. Also, an attacker, such as a secret service, use the described method to identify users of the Tor network, though it would be a significant network capacity are needed for that.



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