Researchers tout new weapon in Internet censorship arms race

Trying to get out in front of what they call a censorship arms race, a team of researchers has come up with technology that lets users exchange messages through heavily censored networks in countries such as China and North Korea in hidden channels via user-generated content sites such as Twitter or Flickr.

Collage has two components: a message vector layer for embedding content in cover traffic; and a rendezvous mechanism to allow parties to publish and retrieve messages in the cover traffic, according to one of the Collage authors Sam Burnett, a researcher with Georgia Tech.