PC Pals Forum
Technical Help & Discussion => Broadband, Networking, PC Security, Internet & ISPs => Topic started by: Simon on July 19, 2011, 21:57
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Researchers have developed a new means of circumventing state internet censorship - by hiding an illegal connection request within a legal one.
States such as China censor traffic by forcing domestic ISPs to operate blacklists. If a user tries to connect to a blacklisted site the ISP denies the request, acting as a barrier between the user and banned foreign websites.
Telex doesn't bypass the censorship barrier but instead goes through it.
Users enter two web addresses into the Telex client. The first is the “decoy” address of a state-sanctioned site that is hosted outside of the country. The second is the banned site the user actually wants to visit, which is embedded in an encrypted tag attached to the header by the Telex client.
Foreign ISPs that support Telex can detect and decode this tag, and connect the user to the second site. The website data that is sent back to the user purports to come from the first “legitimate” website, thus beating the blacklist.
Read more: http://www.pcpro.co.uk/news/security/368764/telex-beats-state-censors-by-hiding-in-legal-web-traffic
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Clever stuff, I wonder how long it will survive.
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It's just cat and mouse isn't it?
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It always is. :(