doc/PluggableTransports/list.md

+[[TOC]]
+
+== List of Pluggable Transports ==
+
+Table of known PTs, tracking multiple different properties including language, platform support, TCP/UDP support, and other useful metrics:
+https://docs.google.com/spreadsheets/d/132n5eD52RkRAHFD8y1xvyKACH5iQb933E_c2vmX8UHg/edit?usp=sharing
+
+=== Currently deployed PTs ===
+
+These Pluggable Transports are currently deployed in Tor Browser, and you can start using them by [https://www.torproject.org/download/download-easy.html.en downloading and using Tor Browser].
+
+[https://gitweb.torproject.org/pluggable-transports/obfs4.git/tree/doc/obfs4-spec.txt obfs4]
+
+ * Description: Is a transport with the same features as ScrambleSuit but utilizing Dan Bernstein's elligator2 technique for public key obfuscation, and the tor protocol for one-way authentication. This results in a faster protocol.
+ * Language: Go
+ * Maintainer: Yawning Angel
+ * Evaluation: [[doc/PluggableTransports/Obfs4Evaluation|Obfs4 Evaluation]]
+
+[[doc/meek|meek]]
+
+ * Description: Uses HTTP, relays through a third party, TLS for obfuscation.
+ * Language: Go.
+ * Maintainer: David Fifield
+ * Evaluation: [[doc/PluggableTransports/MeekEvaluation|meek Evaluation]]
+
+[https://fteproxy.org/ Format-Transforming Encryption (FTE)]
+
+ * Description: Transforms data to arbitrary application-layer traffic.
+ * Language: Python/C++
+ * Maintainer: Kevin Dyer
+ * Evaluation: [[doc/PluggableTransports/FteEvaluation|FTE Evaluation]]
+
+[https://www.cs.kau.se/philwint/scramblesuit/ ScrambleSuit]
+
+ * Description: Sophisticated look-like-nothing pluggable transport (in [https://www.torproject.org/projects/obfsproxy.html.en obfsproxy])
+ * Language: Python
+ * Maintainer: Philipp Winter
+ * Evaluation: [[doc/PluggableTransports/ScrambleSuitEvaluation|ScrambleSuit Evaluation]]
+ * Status: Deployed, but superseded by obfs4 (Tor Browser)
+
+----
+
+=== Deprecated PTs; ===
+These PTs was once part of Tor Browser, but are not used anymore, most of the time because a better version have come out.
+
+[https://github.com/blanu/Dust Dust]
+
+ * Description: Look-like-nothing pluggable transport.
+ * Language: Python
+ * Notes: Superseded by Dust2
+ * Maintainer: Brandon Wiley
+
+[http://www.owlfolio.org/media/2010/05/stegotorus.pdf StegoTorus]
+
+ * Description: Pluggable transport with modular output formats.
+ * Language: C++
+ * Notes: Part of [https://www.usenix.org/conference/foci12/bootstrapping-communications-anti-censorship-system DEFIANCE framework]
+ * Maintainer: vmon (?)
+
+
+----
+
+=== Undeployed PTs ===
+
+These Pluggable Transports exist but are not deployed as part of the Tor Browser.
+
+[https://gitweb.torproject.org/pluggable-transports/obfsproxy.git obfs3]
+
+ * Description: Look-like-nothing pluggable transport (in [https://www.torproject.org/projects/obfsproxy.html.en obfsproxy])
+ * Language: Python
+ * Maintainer: asn
+ * Evaluation: [[doc/PluggableTransports/Obfs3Evaluation|obfs3 Evaluation]]
+
+[https://gitweb.torproject.org/pluggable-transports/obfsproxy.git obfs2]
+
+ * Description: Look-like-nothing pluggable transport (in [https://www.torproject.org/projects/obfsproxy.html.en obfsproxy])
+ * Language: Python
+ * Notes: Superseded by obfs3
+ * Maintainer: asn
+ * Evaluation: [[doc/PluggableTransports/Obfs2Evaluation|obfs2 Evaluation]]
+
+[https://crypto.stanford.edu/flashproxy/ Flashproxy]
+
+ * Description: Zerg-like browser-based proxies XXX
+ * Language: Python, Go, Javascript
+ * Maintainer: David Fifield
+ * Uses [https://gitweb.torproject.org/pluggable-transports/websocket.git/tree/websocket-server/websocket-server.go websocket-server] on the server side, which can also be used with a standalone [https://gitweb.torproject.org/pluggable-transports/websocket.git/tree/websocket-client/websocket-client.go websocket-client], without going through a flash proxy.
+ * Evaluation: [[doc/PluggableTransports/FlashproxyEvaluation|Flashproxy Evaluation]]
+
+----
+
+=== Other PTs being developed ===
+
+
+[https://gitweb.torproject.org/pluggable-transports/snowflake.git SnowFlake]
+ * Description: Intends to modernize the flashproxy concept with a more modern NAT traversal algorithm centered around ​WebRTC.
+ * Language: The implementation is mostly Go, except for the WebRTC implementation, written in C/C++, which is called from the Go application via the cgo FFI interface.
+ * Maintainer: Serene H.
+ * Evaluation: [[doc/PluggableTransports/SnowFlakeEvaluation|SnowFlake Evaluation]]
+
+[https://git.schwanenlied.me/yawning/basket2 basket2]
+ * Description: Modular obfs4 update with fingerprinting resistance, framing, negotiation, PQ
+ * Language: Go
+ * Maintainer: Yawning
+ * Evaluation: [[doc/PluggableTransports/basket2evaluation|basket2 Evaluation]]
+
+
+[http://crysp.uwaterloo.ca/software/SkypeMorph-0.5.1.tar.gz SkypeMorph]
+ * Description: transforms Tor traffic flows so they look like Skype Video - design paper.
+ * Maintained: Ian Goldberg.
+
+
+[https://github.com/david415/obfsproxy bananaphone]
+
+ * Description: Markov-chains pluggable transport
+ * Language: Python
+ * Maintainer: David Stainton
+
+[https://lists.torproject.org/pipermail/tor-dev/2013-September/005434.html LODP]
+
+ * Description: UDP-based pluggable transport.
+ * Language: C
+ * Maintainer: Yawning
+
+[https://github.com/Yawning/sshproxy.git sshproxy]
+
+ * Description: SSH-based pluggable transport.
+ * Language: Python
+ * Notes: Actually uses the ssh binary
+ * Maintainer: Yawning
+
+[https://github.com/aeftimia/hexchat.git hexchat]
+
+ * Description: XMPP-based pluggable transport.
+ * Language: Python (SleekXMPP)
+ * Notes: Bandwidth issues since most XMPP servers are throttled. Can be solved maybe with multiple hexchat bots.
+ * Maintainer: Feynmann
+
+[https://github.com/blanu/Dust Dust2]
+
+ * Description: Transforms traffic to arbitrary formats based on sample traffic.
+ * Language: Go / Python
+ * Evaluation: [[doc/PluggableTransports/Dust2Evaluation|Dust2 Evaluation]]
+ * Maintainer: Brandon Wiley
+
+[http://cacr.uwaterloo.ca/techreports/2012/cacr2012-08.pdf Code Talker Tunnel (previously: SkypeMorph)]
+
+ * Description: Skype-based pluggable transport
+ * Language: C/C++
+ * Notes: Actually uses the Skype binary
+ * Maintainer: Ian Goldberg
+
+[http://ext.delaat.net/rp/2012-2013/p70/report.pdf git]
+
+ * Description: Git-based pluggable transport (in [https://www.torproject.org/projects/obfsproxy.html.en obfsproxy])
+ * Language: Python
+ * Notes: Git is poll-based. Slow.
+ * Maintainer: Björgvin Ragnarsson && Pieter Westein
+
+[https://arxiv.org/abs/1503.05904 Castle]
+
+ * Description: Encodes messages as commands in online video games.
+ * Status: Prototyped.
+ * Language: C++.
+
+[https://github.com/marionette-tg marionette]
+
+* Description: An updated FTE proxy.
+* Notes: ([https://www.usenix.org/conference/usenixsecurity15/technical-sessions/presentation/dyer Presentation]). Includes many [https://github.com/marionette-tg/marionette/tree/master/marionette_tg/formats/20150701 formats].
+* Language: Python
+
+[https://github.com/getlantern/lampshade lampshade]
+* Description: multiplexing. mostly follows obfs4
+* Language: go
+* Maintainer: [https://github.com/getlantern/lampshade/commits oxtoacart]
+
+[https://github.com/SergeyFrolov/gotapdance/ TapDance]
+* Description: TLS encryption MITM'ed by a participating ISP
+* Language: Go (client) / Rust+C (server)
+* Notes: Unlike Telex, ISP uses a passive tap. Part of [https://refraction.network refraction.network]
+* Maintainer: Sergey
+
+
+----
+
+
+== PT libraries ==
+ * [https://gitweb.torproject.org/pluggable-transports/pyptlib.git pyptlib] is a Python library which makes it easier to turn a proxy into a Tor pluggable transport.
+ * [https://gitweb.torproject.org/pluggable-transports/goptlib.git goptlib] is a pluggable transports library for golang. Check the [https://gitweb.torproject.org/pluggable-transports/goptlib.git/tree/examples/dummy-client/dummy-client.go example client] and [https://gitweb.torproject.org/pluggable-transports/goptlib.git/tree/examples/dummy-server/dummy-server.go example server].
+ * [https://github.com/guardianproject/pluto PLUTO]: Pluggable Libraries Using Transport Obfuscation for Android.
+ * [https://github.com/Yawning/liballium liballium] is a C/C++ library for people that absolutely need to use C or C++ for a pluggable transport.
\ No newline at end of file