Non-bridge Censorship Circumvention Tools

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List of Censorship Circumvention Tools that may be helpful to get around network bans. Draft.

UNFINISHED

Documentation for this is incomplete. Contributions are happily considered! See this for potential alternatives.

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Introduction

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This page is about the censorship circumvention tools other than Tor Bridges. If you are not experiencing a real censorship (for example, only some ports are blocked by your ISP), then something simpler can be tried.

Tools

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Tool	client language	works on Linux	works on Wine	OS	Interface	Transport	uses Service	Tor works	runs through proxy	notes
GoAgent 1	?	yes	N/A	?	proxy/if?	?	google app engine account	?	?	site and sources deleted (Similar to meek.)
Shadowsocks	?	yes	N/A	yes	proxy	?+encrypt	server for proxy	?	no	sources deleted, runs on routers
scotty transporter	java	yes	N/A	?	proxy	?	php webhosting, server with java, google appengine account	?	?	-
IP over mail tunnel	C or C++	?	?	yes	?	email/protocol?	maybe an email account?	?	no?	-
Psiphon 1	?	no	?	no?	?	?	?	?	?	-
Lahana	uses an ipsec vpn client	yes	N/A	?	if	ipsec vpn	amazon aws account	?	?	-
Telex	?	?	?	?	?	tls	cooperating isp	yes	?	only a concept
Iodine	C or C++	yes	N/A	yes	if	dns	domain and dns server	?	no	very small, runs on routers
your freedom	java	yes	N/A	?	socks,if	?, dns	free account	?	https(s), socks 4/5	has various settings
tor	C++,javascript	yes	N/A	yes	proxy,if()	tls,pt	-	yes/N/A	yes	tor over tor is bad
freegate	?	?	?	?	?	http(s),tls	?	?	?	officially only available for china & Iran, questionable trustworthyness
VPN Gate	?	yes	N/A	no	if	vpn	-	?	?	-

Webproxies

• dynaweb webproxy, questionable trustworthyness (https://freedomhouse.org/sites/default/files/inline_images/Censorship.pdf), own censorship rules
• Proxify
• Google Translate

Email

• https://web.archive.org/web/20190420181707/http://www.web2mail.com/lite/welcome.php
• IP over mail tunnel

Static Web Mirrors

• https://www.archive.org
• https://archive.ph/
• https://cachedview.com/
• https://web.archive.org/web/20190319140019/http://www.cachedpages.com/
• https://web.archive.org/web/20170222180651/http://www.google-cache.de/

Single Site solutions

• [1]
• [2]
• essentially what a cdn does

Protocol Tunneling

ICMP

• Ping Tunnel

DNS

• DNSTunnel
• Iodine
• your freedom

SSL

• STunnel

Anonymous P2P

• Freedom Network
• Onion Routing
• MixMaster
• Babel
• Mixminion
• Zach Brown's Onion
• PipeNet
• IronKey
• MorphMix
• Tarzan
• Tor
• Hornet (Modified Tor)
• I2P

Source

Unsorted

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• https://web.archive.org/web/20210126155918/https://jaxov.com/2009/09/how-to-unblock-any-website-in-ubuntu-via-ultrasurf-linux/
• https://socialsourcecommons.org/tool/show/3368/
• https://www.vpngate.net/en/
• Infranet
• NetCamo
• Collage collage
• https://web.archive.org/web/20060424152838/http://www.peek-a-booty.org/pbhtml/index.php
• https://web.archive.org/web/20070911174435/http://www.brain-pro.de/Seiten/six/sixfour.html
• freedom systems
• https://en.wikipedia.org/wiki/TriangleBoy
• streisand - Script to automate deployment of some of these tools.
• https://www.ndss-symposium.org/wp-content/uploads/2020/02/24340-paper.pdf
• https://github.com/OperatorFoundation
• https://github.com/BrassHornCommunications/go-packetflagon/

Tor's Pluggable Transports

• Flash Proxy https://en.wikipedia.org/wiki/Flash_proxy
• Meek https://gitlab.torproject.org/legacy/trac/-/wikis/doc/meek
• more and more

Research and Proof of Concept

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• https://web.archive.org/web/20161108060949/https://freedomhouse.org/report/special-reports/leaping-over-firewall-review-censorship-circumvention-tools
• https://en.wikipedia.org/wiki/Internet_censorship_circumvention
• https://www.usenix.org/legacy/events/sec10/tech/full_papers/Burnett.pdf
• jondonym Japan On https://git.gnunet.org/bibliography.git/plain/docs/koepsell-wpes2004_0.pdf
• Cirripede paper
• Decoy Routing
• Morphmix java

Questions

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• Type? (VPN, proxy, ssh?)
• Usable with Open Source Software, without any proprietary client? (OpenVPN etc.)
• Is there a Linux version?
• Does it work in WINE?
• Can Whonix (Tor) get tunneled through it? (Whonix (Tor) can get tunneled thought a VPN running on the host and also supports all kinds of proxy settings (http(s), socks4(a)/5).)
• Instructions for using it with Whonix?

TODO

Add Lantern to the above table. (Already partially documented in Whonix wiki, see Lantern.)

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