SkypeMorph: Protocol Obfuscation for Tor Bridges

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Provided by: Association for Computing Machinery
Topic: Security
Format: PDF
The tor network is designed to provide users with low-latency anonymous communications. Tor clients build circuits with publicly listed relays to anonymously reach their destinations. However, since the relays are publicly listed, they can be easily blocked by censoring adversaries. Consequently, the tor project envisioned the possibility of unlisted entry points to the tor network, commonly known as bridges. The authors address the issue of preventing censors from detecting the bridges by observing the communications between them and nodes in their network.
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