tor-webwml.git

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2) # Revision: $Revision$
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5) #include "head.wmi" TITLE="Tor Project: obfsproxy" CHARSET="UTF-8"
6) <div id="content" class="clearfix">
7)   <div id="breadcrumbs">
8)     <a href="<page index>">Home &raquo; </a>
9)     <a href="<page projects/projects>">Projects &raquo; </a>
10)     <a href="<page projects/obfsproxy>">obfsproxy &raquo; </a>
11)   </div>
12)   <div id="maincol">
13)     <!-- PUT CONTENT AFTER THIS TAG -->
14) 
15)     <h2>obfsproxy</h2>
16)     <div class="underline"></div>
17) 
18)     <!-- BEGIN SIDEBAR -->
19)     <div class="sidebar-left">
20)     </div>
21)     <!-- END SIDEBAR -->
22) 

23)     <img src="$(IMGROOT)/obfsproxy_diagram.png" alt="obfsproxy diagram"></a>
24)     </p>
25) 

26)     <p>
27)     obfsproxy is a tool that attempts to circumvent censorship, by
28)     transforming the Tor traffic between the client and the
29)     bridge. This way, censors, who usually monitor traffic between the
30)     client and the bridge, will see innocent-looking transformed
31)     traffic instead of the actual Tor traffic.
32) 
33)     <p>

34)     obfsproxy supports multiple protocols, called <a href="<page
35)     docs/pluggable-transports>">pluggable transports</a>, which
36)     specify how the traffic is transformed. For example, there might
37)     be a HTTP transport which transforms Tor traffic to look like
38)     regular HTTP traffic. See the <a href="<page
39)     docs/pluggable-transports>">pluggable transports page</a> for more
40)     information.

41)     </p>
42) 
43)     <p>
44)     Even though obfsproxy is a separate application, completely
45)     independent from tor, it speaks to tor using an <a

46)     href="https://gitweb.torproject.org/torspec.git/blob/HEAD:/pt-spec.txt">internal

47)     protocol</a> to minimize necessary end-user configuration.
48)     </p>
49) 
50)     <p>
51)     Please open a <a

52)     href="https://trac.torproject.org/projects/tor/query?status=accepted&status=assigned&status=needs_information&status=needs_review&status=needs_revision&status=new&status=reopened&component=Obfsproxy&order=priority&col=id&col=summary&col=status&col=type&col=priority&col=milestone&col=component">ticket</a>

53)     on our bug tracker for any bugs you find or features you would
54)     like to see added in future releases.

55)     <br>
56)     Also feel free to look or poke at
57)     <a href="https://gitweb.torproject.org/pluggable-transports/obfsproxy.git">the source code</a>
58)     and send us back any improvements you make.

59)     </p>
60) 

61)     <a id="morebridges"></a>
62)     <h2><a class="anchor" href="#morebridges">Looking for obfsproxy bridges?</a></h2>

63)     <p>
64)     <a href="https://bridges.torproject.org/?transport=obfs2">You can use BridgeDB to get obfsproxy bridges.</a>
65)     </p>
66) 
67) 

68)     <a id="download"></a>

69)     <h2><a class="anchor" href="#download">Download the Pluggable Transports Tor Browser Bundle</a></h2>

70) 

71)     <p>

72) 

73)     We've been making experimental bundles that include obfsproxy  and
74)     are specially designed to circumvent censorship. You can <b>download</b>
75)     them from the
76)     <a href="<page docs/pluggable-transports>#download">pluggable transports page</a>.

77) 

78)     </p>
79) 

80)     <h2><a class="anchor" href="#instructions">Installation Instructions</a></h2>

81) 

82)    <p>
83)    To set up an obfsproxy bridge on a Debian/Ubuntu machine, see the separate
84)    <a href="<page projects/obfsproxy-debian-instructions>#instructions">Obfsproxy Debian/Ubuntu Installation Instructions</a>
85)    page.

86)    </p>

87)    <p>
88)    To set up obfsproxy from source, see the separate
89)    <a href="<page projects/obfsproxy-instructions>#instructions">Obfsproxy Installation Instructions</a>
90)    page.
91)  </p>
92)