Network Traffic Obfuscation and Automated Internet Censorship

Marionette: A Programmable Network Traffic Obfuscation System

Recently, a number of obfuscation systems have been developed to aid in censorship circumvention scenarios where encrypted network traffic is filtered. In this paper, we present Marionette, the first programmable network traffic obfuscation system capable of simultaneously controlling encrypted traffic features at a variety of levels, including ciphertext formats, stateful protocol semantics, a...

SkypeMorph: Protocol Obfuscation for Censorship Resistance

The Tor network is designed to provide users with low-latency anonymous communication. Tor clients build circuits with publicly listed relays to anonymously reach their destinations. Low-latency anonymous communication is also an essential property required by censorship circumvention tools and thus Tor has been widely used as a censorship resistance tool. However, since the Tor relays are publ...

Automated Discovery of Internet Censorship by Web Crawling

Censorship of the Internet is widespread around the world. As access to the web becomes increasingly ubiquitous, filtering of this resource becomes more pervasive. Transparency about specific content that citizens are denied access to is atypical. To counter this, numerous techniques for maintaining URL filter lists have been proposed by various individuals and organisations that aim to empiric...

Measuring and circumventing Internet censorship

An ever increasing amount of governments, organisations, and companies employ Internet censorship in order to filter the free flow of information. These efforts are supported by an equally increasing number of companies focusing on the development of filtering equipment. Only what these entities consider right can pass the filters. This practice constitutes a violation of the Universal Declarat...

Obfuscation of Critical Infrastructure Network Traffic Using Fake Communication