A US bill proposed in July 2002 would give copyright holders the legal power to attack the computers of file sharers suspected of piracy. Experts say it would be relatively easy to log on to a network and deliberately overload suspected users with fake requests for a file, by misinforming other “nodes”. This is similar to overloading a web site with fake traffic in a “denial of service” attack.
But Neil Daswani and Hector Garcia-Molina of the Database Research Department at Stanford University in the US believe it may be possible to redesign peer-to-peer networks to protect them against such attacks. Daswani says this may also guard these networks against malicious computer hackers. He told New Scientist: “We were interested in both protecting the network from being shut down and protecting individual users.”
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