obfs4

Obfs4proxy is a tool that attempts to circumvent censorship by transforming the Tor traffic between the client and the bridge. This way censors, who usually monitor traffic between the client and the bridge, will see innocent-looking transformed traffic instead of the actual Tor traffic. obfs4proxy implements the obfsucation protocols obfs2, obfs3, and obfs4. It is written in Go and is compliant with the Tor pluggable transports specification, and its modular architecture allows it to support multiple pluggable transports.