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June 1, 2015 12:00 pm
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/Gg85lnOxJVM/tor-connections-to-hidden-services-could-be-easy-to-de-anonymize
Tor Connections To Hidden Services Could Be Easy To De-Anonymize
angry tapir writes with news of a report presented Friday at Hack In The Box which outlines a counterintuitive fact about Tor:Identifying users who access Tor hidden services — websites that are only accessible inside the Tor anonymity network — is easier than de-anonymizing users who use Tor to access regular Internet websites.That's because the addresses of the Hidden Service Directories (HSDirs) used to index those Tor-network-only sites, though shuffled daily, can be predicted (and hijacked) with cheap brute-force techniques."The researchers managed to place their own nodes as the 6 HSDirs for facebookcorewwwi.onion, Facebook's official site on the Tor network, for the whole day on Thursday. They still held 4 of the 6 spots on Friday. Brute-forcing the key for each node took only 15 minutes on a MacBook Pro and running the Tor relays themselves cost US$62 on Amazon's EC2 service.Read more of this story at Slashdot.
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/Gg85lnOxJVM/tor-connections-to-hidden-services-could-be-easy-to-de-anonymize
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