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#include "head.wmi" TITLE="Tor: Volunteer" CHARSET="UTF-8"
<div id="content" class="clearfix">
  <div id="breadcrumbs">
    <a href="<page index>">Home &raquo; </a>
    <a href="<page getinvolved/volunteer>">Volunteer</a>
  </div>
  <div id="maincol">
    <!-- PUT CONTENT AFTER THIS TAG -->
    <h1>A few things everyone can do now:</h1>
    <ol>
    <li>Please consider <a href="<page docs/tor-doc-relay>">running
    a relay</a> to help the Tor network grow.</li>
    <li>Tell your friends! Get them to run relays. Get them to run hidden
    services. Get them to tell their friends.</li>
    <li>If you like Tor's goals, please <a href="<page donate/donate>">take a moment
    to donate to support further Tor development</a>. We're also looking
    for more sponsors &mdash; if you know any companies, NGOs, agencies,
    or other organizations that want anonymity / privacy / communications
    security, let them know about us.</li>
    <li>We're looking for more <a href="<page about/torusers>">good examples of Tor
    users and Tor use cases</a>. If you use Tor for a scenario or purpose not
    yet described on that page, and you're comfortable sharing it with us,
    we'd love to hear from you.</li>
    </ol>

    <a id="Documentation"></a>
    <h2><a class="anchor" href="#Documentation">Documentation</a></h2>
    <ol>
    <li>Help translate the
<!-- web page and -->
    documentation into other
    languages. See the <a href="<page getinvolved/translation>">translation
    guidelines</a> if you want to help out. We especially need Arabic or
    Farsi translations, for the many Tor users in censored areas.</li>
    <li>Evaluate and document
    <a href="<wiki>doc/TorifyHOWTO">our
    list of programs</a> that can be configured to use Tor.</li>
    <li>We have a huge list of <a
    href="<wiki>doc/SupportPrograms">potentially useful
    programs that interface with Tor</a>. Which ones are useful in which
    situations? Please help us test them out and document your results.</li>
    </ol>

    <a id="Advocacy"></a>
    <h2><a class="anchor" href="#Advocacy">Advocacy</a></h2>
    <ol>
    <li>Monitor some of our <a
    href="https://lists.torproject.org/cgi-bin/mailman/listinfo">public mailing
    lists</a>, like <a
    href="https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-talk">tor-talk</a>, <a
    href="https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays">tor-relays</a>, <a
    href="https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-dev">tor-dev</a>, or <a
    href="https://lists.torproject.org/cgi-bin/mailman/listinfo/tbb-dev">tbb-dev</a>,
    and summarize noteworthy exchanges into articles for <a
    href="https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-news">Tor
    Weekly News</a>.</li>
    <li>Create a presentation that can be used for various user group
meetings around the world.</li>
    <li>Create a video about the positive uses of Tor, what Tor is,
    or how to use it.  Some have already started on <a
    href="https://media.torproject.org/video/">Tor's Media server</a>,
    <a
    href="http://www.howcast.com/videos/90601-How-To-Circumvent-an-Internet-Proxy/">Howcast</a>,
    and <a href="http://www.youtube.com/c/thetorproject">YouTube</a>.</li>
    <li>Create a poster around a theme, such as "Tor for Freedom!"</li>
    <li>Create a t-shirt design that incorporates "<a
    href="https://check.torproject.org/">Congratulations! You are using
    Tor!</a>" in any language.</li>
    <li>Spread the word about Tor at a symposium or conference and use these
    <a href="https://media.torproject.org/misc/2015-03-tor-brochure/">Tor
    brochures</a> in PDF and ODG format and translated to at least ten
    different languages as conversation starter.</li>
    </ol>

    <a id="gsoc"></a>
    <h2><a class="anchor" href="#gsoc">Google Summer of Code</a></h2>

    <p>
    Tor is also taking part in this year's <a
    href="https://summerofcode.withgoogle.com/">Google
    Summer of Code</a>! To apply but you need to be either <a
    href="https://developers.google.com/open-source/gsoc/faq#what_are_the_eligibility_requirements_for_participation">a
    present student or just graduated</a>. <b>See our page for <a href="<page
    about/gsoc>">Google Summer of Code</a> for more information.</b>
    </p>

    <a id="Projects"></a>
    <h2><a class="anchor" href="#Projects">Projects</a></h2>

    <p>
    Below are a list of Tor related projects we're developing and/or
    maintaining. Most discussions happen on IRC so if you're interested in any
    of these (or you have a project idea of your own), then please <a
    href="<page about/contact>#irc">join us in #tor-dev</a>. Don't be shy
    to ask questions, and don't hesitate to ask even if the main contributors
    aren't active at that moment.
    </p>

    <p>
    For a presentation summarizing many of these projects see...
    </p>

    <div id="ecosystem_presentation">
      <a href="https://www.youtube.com/watch?v=fb6iqZcQsSg">Tor Ecosystem</a> (<a href="https://media.torproject.org/video/2013-11-t3am-damian-johnson.mp4">mp4</a>, <a href="https://svn.torproject.org/svn/projects/presentations/2013-11-t3am-tor-ecosystem.pdf">slides</a>)
    </div>

    <br /></br />

    <table id="projects">
      <tr>
        <th>Name</th>
        <th>Category</th>
        <th>Language</th>
        <th>Activity</th>
        <th>Contributors</th>
      </tr>

      <tr>
        <td><a href="#project-tor">Tor</a></td>
        <td>Core</td>
        <td>C</td>
        <td>Heavy</td>
        <td>nickm, athena, arma, dgoulet, asn, teor</td>
      </tr>

      <tr>
        <td><a href="#project-torbrowser">Tor Browser</a></td>
        <td>Bundle</td>
        <td>Javascript, XUL, Scripting</td>
        <td>Heavy</td>
        <td>mikeperry, Pearl Crescent, GeKo</td>
      </tr>

      <tr>
        <td><a href="#project-httpseverywhere">HTTPS Everywhere</a></td>
        <td>Browser Add-on</td>
        <td>Javascript</td>
        <td>Moderate</td>
        <td>pde, mikeperry</td>
      </tr>

      <tr>
        <td><a href="#project-nyx">Nyx</a></td>
        <td>User Interface</td>
        <td>Python, Curses</td>
        <td>Moderate</td>
        <td>atagar</td>
      </tr>

      <tr>
        <td><a href="#project-orbot">Orbot</a></td>
        <td>User Interface</td>
        <td>Java</td>
        <td>Moderate</td>
        <td>n8fr8</td>
      </tr>

      <tr>
        <td><a href="#project-tails">Tails</a></td>
        <td>OS image</td>
        <td>Sys Admin</td>
        <td>Heavy</td>
        <td><a href="https://tails.boum.org/">#tails</a></td>
      </tr>

      <tr>
        <td><a href="#project-torramdisk">tor-ramdisk</a></td>
        <td>OS image</td>
        <td>Sys Admin</td>
        <td>Light</td>
        <td>blueness</td>
      </tr>

      <tr>
        <td><a href="#project-torsocks">Torsocks</a></td>
        <td>Usability</td>
        <td>C</td>
        <td>Light</td>
        <td>David Goulet</td>
      </tr>

      <tr>
        <td><a href="#project-tormessenger">Tor Messenger</a></td>
        <td>Bundle</td>
        <td>JavaScript, XUL, Scripting</td>
        <td>Heavy</td>
        <td>arlolra, boklm, sukhe</td>
      </tr>

      <tr>
        <td><a href="#project-torbirdy">TorBirdy</a></td>
        <td>Browser Add-on</td>
        <td>JavaScript</td>
        <td>Light</td>
        <td>sukhe</td>
      </tr>

      <tr>
        <td><a href="#project-flash-proxy">Flash Proxy</a></td>
        <td>Client Add-on</td>
        <td>Python, JavaScript, Go</td>
        <td>Light</td>
        <td>dcf, infinity0, Arlo Breault</td>
      </tr>

      <tr>
        <td><a href="#project-shadow">Shadow</a></td>
        <td>Simulator</td>
        <td>C, Python</td>
        <td>Moderate</td>
        <td>robgjansen</td>
      </tr>

      <tr>
        <td><a href="#project-chutney">Chutney</a></td>
        <td>Simulator</td>
        <td>Python</td>
        <td>Light</td>
        <td>teor</td>
      </tr>

      <tr>
        <td><a href="#project-stem">Stem</a></td>
        <td>Library</td>
        <td>Python</td>
        <td>Heavy</td>
        <td>atagar</td>
      </tr>

      <tr>
        <td><a href="#project-txtorcon">Txtorcon</a></td>
        <td>Library</td>
        <td>Python, Twisted</td>
        <td>Moderate</td>
        <td>meejah</td>
      </tr>

      <tr>
        <td><a href="#project-metrics-lib">metrics-lib</a></td>
        <td>Library</td>
        <td>Java</td>
        <td>Moderate</td>
        <td>karsten, iwakeh</td>
      </tr>

      <tr>
        <td><a href="#project-metrics">Metrics</a></td>
        <td>Client Service</td>
        <td>Java</td>
        <td>Heavy</td>
        <td>karsten, iwakeh</td>
      </tr>

      <tr>
        <td><a href="#project-atlas">Atlas</a></td>
        <td>Client Service</td>
        <td>JavaScript</td>
        <td>Light</td>
        <td>irl</td>
      </tr>

      <tr>
        <td><a href="#project-compass">Compass</a></td>
        <td>Client Service</td>
        <td>Python</td>
        <td>None</td>
        <td></td>
      </tr>

      <tr>
        <td><a href="#project-onionoo">Onionoo</a></td>
        <td>Backend Service</td>
        <td>Java</td>
        <td>Heavy</td>
        <td>karsten, iwakeh</td>
      </tr>

      <tr>
        <td><a href="#project-exitmap">ExitMap</a></td>
        <td>Backend Service</td>
        <td>Python</td>
        <td>None</td>
        <td>phw</td>
      </tr>

      <tr>
        <td><a href="#project-doctor">DocTor</a></td>
        <td>Backend Service</td>
        <td>Python</td>
        <td>Light</td>
        <td>atagar</td>
      </tr>

      <tr>
        <td><a href="#project-gettor">GetTor</a></td>
        <td>Client Service</td>
        <td>Python</td>
        <td>None</td>
        <td>ilv</td>
      </tr>

      <tr>
        <td><a href="#project-torcheck">TorCheck</a></td>
        <td>Client Service</td>
        <td>Go</td>
        <td>None</td>
        <td>Arlo</td>
      </tr>

      <tr>
        <td><a href="#project-bridgedb">BridgeDB</a></td>
        <td>Backend Service</td>
        <td>Python</td>
        <td>Light</td>
        <td>isis</td>
      </tr>

      <tr>
        <td><a href="#project-ooni-probe">Ooni Probe</a></td>
        <td>Scanner</td>
        <td>Python</td>
        <td>Heavy</td>
        <td>hellais, aagbsn</td>
      </tr>

      <tr>
        <td><a href="#project-torps">TorPS</a></td>
        <td>Backend Service</td>
        <td>Python</td>
        <td>None</td>
        <td>Aaron Johnson</td>
      </tr>

      <tr>
        <td><a href="#project-torflow">TorFlow</a></td>
        <td>Backend Service</td>
        <td>Python</td>
        <td>None</td>
        <td>aagbsn</td>
      </tr>

      <tr>
        <td><a href="#project-tor2web">Tor2web</a></td>
        <td>Client Service</td>
        <td>Python</td>
        <td>Heavy</td>
        <td>evilaliv3, hellais</td>
      </tr>

      <tr>
        <td><a href="#project-collector">CollecTor</a></td>
        <td>Backend Service</td>
        <td>Java</td>
        <td>Moderate</td>
        <td>karsten, iwakeh</td>
      </tr>

      <tr>
        <td><a href="#project-exonerator">ExoneraTor</a></td>
        <td>Client Service</td>
        <td>Java</td>
        <td>Light</td>
        <td>karsten, iwakeh</td>
      </tr>

      <tr>
        <td><a href="#project-anonbib">Anonbib</a></td>
        <td>Website</td>
        <td>Python</td>
        <td>None</td>
        <td>arma, nickm</td>
      </tr>
    </table>

    <sub>
    * Project is still in an alpha state.
    </sub>

    <br /><br />

    <a id="project-tor"></a>
    <h3>Tor (<a href="https://gitweb.torproject.org/tor.git">code</a>, <a
    href="https://trac.torproject.org/projects/tor/report/12">bug
    tracker</a>)</h3>

    <p>
    Central project, providing the core software for using and participating in
    the Tor network. Numerous people contribute to the project to varying
    extents, but the chief architects are Nick Mathewson and Roger Dingledine.
    </p>

    <p>
    <b>Project Ideas:</b><br />
    <i><a href="#improveHiddenServices">Help improve Tor hidden services</a></i>
    </p>

    <a id="project-torbrowser"></a>
    <h3><a href="<page projects/torbrowser>">Tor Browser</a> (<a
    href="https://gitweb.torproject.org/tor-browser.git">code</a>, <a
    href="https://trac.torproject.org/projects/tor/query?status=accepted&status=assigned&status=needs_review&status=new&status=reopened&component=Applications%2FTor+Browser&component=Applications%2FTorbutton&component=Applications%2FTor+Launcher&component=Applications%2FTor+bundles%2Finstallation&col=id&col=summary&col=status&col=owner&col=type&col=priority&col=milestone&order=priority">bug
    tracker</a>, <a href="https://www.torproject.org/projects/torbrowser/design/">design doc</a>)</h3>

    <p>
    Tor Browser is an easy-to-use, portable package of Tor, HTTPS-Everywhere,
    NoScript, TorLauncher, Torbutton, and a Firefox fork, all  preconfigured
    to work together out of
    the box. The modified copy of Firefox aims to resolve the
    privacy and security issues in mainline version.
    </p>

    <p>
    <b>Project Ideas:</b><br />
    <i><a href="#feedbackExtension">Feedback Extension for Tor Browser</a></i><br />
    <i><a href="#torBrowserCrashReport">Crash Reporter for Tor Browser</a></i><br />
    <i><a href="#fasterTorBrowser">Make Tor Browser Faster</a></i>
    </p>

    <a id="project-httpseverywhere"></a>
    <h3><a href="https://www.eff.org/https-everywhere">HTTPS Everywhere</a> (<a
    href="https://gitweb.torproject.org/https-everywhere.git">code</a>, <a
    href="https://trac.torproject.org/projects/tor/report/19">bug
    tracker</a>)</h3>

    <p>
    HTTPS Everywhere is a Firefox and Chrome extension that encrypts
    your communications with many major websites, making your browsing
    more secure.
    </p>

    <a id="project-nyx"></a>
    <h3><a href="https://www.atagar.com/arm/">Nyx</a> (<a
    href="https://gitweb.torproject.org/nyx.git">code</a>, <a
    href="https://trac.torproject.org/projects/tor/query?status=accepted&status=assigned&status=needs_review&status=new&status=reopened&component=Core+Tor%2FNyx&order=priority">bug
    tracker</a>)</h3>

    <p>
    Nyx (previously <i>arm</i>) is a terminal status monitor for Tor
    intended for command-line aficionados, ssh connections, and anyone with a
    tty terminal. This works much like top does for system usage, providing
    real time statistics for bandwidth, resource usage, connections, and quite
    a bit more.
    </p>

    <a id="project-orbot"></a>
    <h3><a href="https://guardianproject.info/apps/orbot/">Orbot</a> (<a
    href="https://gitweb.torproject.org/orbot.git">code</a>, <a
    href="https://trac.torproject.org/projects/tor/query?status=accepted&status=assigned&status=needs_review&status=new&status=reopened&component=Applications%2FOrbot&order=priority">bug
    tracker</a>)</h3>

    <p>
    Provides Tor on the Android platform. The project is under active
    development, updates to latest Tor releases, and working to stay up to
    date with all changes in Android and mobile threats.
    </p>

    <a id="project-tails"></a>
    <h3><a href="https://tails.boum.org/">The Amnesic Incognito Live System</a> (<a
    href="https://git-tails.immerda.ch/tails/">code</a>, <a
    href="https://labs.riseup.net/code/projects/tails">bug
    tracker</a>, <a href="https://tails.boum.org/doc/">documentation</a>, <a
    href="https://tails.boum.org/contribute/design/">design</a>, <a
    href="https://tails.boum.org/contribute/">contribute</a>)</h3>

    <p>
    The Amnesic Incognito Live System is a live CD/USB distribution
    preconfigured so that everything is safely routed through Tor and leaves no
    trace on the local system. This is a merger of the Amnesia and <a
    href="https://web.archive.org/web/20080512054152/http://anonymityanywhere.com/incognito/">Incognito</a> projects,
    and still under very active development.
    </p>

    <a id="project-torramdisk"></a>
    <h3><a href="http://opensource.dyc.edu/tor-ramdisk">Tor-ramdisk</a> (<a
    href="https://gitweb.torproject.org/tor-ramdisk.git">code</a>, <a
    href="http://opensource.dyc.edu/tor-ramdisk-documentation">documentation</a>)</h3>

    <p>
    Tor-ramdisk is a uClibc-based micro Linux distribution whose sole
    purpose is to securely host a Tor server purely in RAM.
    </p>

    <a id="project-torsocks"></a>
    <h3>Torsocks (<a
    href="https://gitweb.torproject.org/torsocks.git">code</a>, <a
    href="https://trac.torproject.org/projects/tor/query?status=accepted&status=assigned&status=needs_review&status=new&status=reopened&component=Core+Tor%2FTorsocks&order=priority">bug
    tracker</a>)</h3>

    <p>
    Utility for adapting other applications to work with Tor. Development has
    slowed and compatibility issues remain with some platforms, but it's
    otherwise feature complete.
    </p>

    <a id="project-tormessenger"></a>
    <h3><a href="https://trac.torproject.org/projects/tor/wiki/doc/TorMessenger">Tor Messenger</a> (<a
    href="https://gitweb.torproject.org/tor-messenger-build.git">code</a>, <a
    href="https://trac.torproject.org/projects/tor/query?status=accepted&status=assigned&status=merge_ready&status=needs_information&status=needs_review&status=needs_revision&status=new&status=reopened&component=Applications%2FTor+Messenger&order=priority">bug tracker</a>)</h3>

    <p>
    Tor Messenger is a cross-platform chat program that aims to be secure by default and sends all of its traffic over Tor.
    </p>

    <a id="project-torbirdy"></a>
    <h3>TorBirdy (<a
    href="https://gitweb.torproject.org/torbirdy.git">code</a>, <a
    href="https://trac.torproject.org/projects/tor/wiki/torbirdy/dev">bug
    tracker</a>)</h3>

    <p>
    TorBirdy is Torbutton for Thunderbird and related Mozilla mail clients.
    </p>

    <a id="project-flash-proxy"></a>
    <h3><a href="https://crypto.stanford.edu/flashproxy/">Flash Proxy</a> (<a
    href="https://gitweb.torproject.org/flashproxy.git">code</a>, <a
    href="https://trac.torproject.org/projects/tor/query?status=accepted&status=assigned&status=needs_review&status=new&status=reopened&component=Archived%2FFlashproxy&order=priority">bug
    tracker</a>)</h3>

    <p>
    Pluggable transport using proxies running in web browsers to defeat
    address-based blocking.
    </p>

    <a id="project-shadow"></a>
    <h3><a href="http://shadow.github.io/">Shadow</a> (<a
    href="https://github.com/shadow">code</a>, <a
    href="https://github.com/shadow/shadow/issues">bug
    tracker</a>)</h3>

    <p>
    Shadow is a discrete-event network simulator that runs the real
    Tor software as a plug-in. Shadow is open-source software that enables
    accurate, efficient, controlled, and repeatable Tor experimentation.
    For another simulator, see <a
    href="https://crysp.uwaterloo.ca/software/exptor/">ExperimenTor</a>.
    </p>

    <a id="project-chutney"></a>
    <h3>Chutney (<a href="https://gitweb.torproject.org/chutney.git">code</a>,
    <a 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=Core+Tor%2FChutney&order=priority">bug
    tracker</a>)</h3>

    <p>
    Integration test suite that spawns a local tor network, checking the
    interactions of its components.
    </p>

    <a id="project-stem"></a>
    <h3><a href="https://stem.torproject.org/">Stem</a> (<a
    href="https://gitweb.torproject.org/stem.git">code</a>, <a
    href="https://trac.torproject.org/projects/tor/wiki/doc/stem/bugs">bug
    tracker</a>)</h3>

    <p>
    Python controller library for scripts and controller applications using
    Tor.
    </p>

    <p>
    <b>Project Ideas:</b><br />
    <i><a href="#stemDescriptors">Stem Descriptors</a></i>
    </p>

    <a id="project-txtorcon"></a>
    <h3><a href="https://txtorcon.readthedocs.io/en/latest/">Txtorcon</a> (<a
    href="https://github.com/meejah/txtorcon">code</a>, <a
    href="https://github.com/meejah/txtorcon/issues">bug tracker</a>)</h3>

    <p>
    Twisted-based asynchronous Tor control protocol implementation. Includes
    unit-tests, examples, state-tracking code and configuration abstraction.
    Used by OONI and APAF.
    </p>

    <a id="project-metrics-lib"></a>
    <h3>metrics-lib
    (<a href="https://gitweb.torproject.org/metrics-lib.git">code</a>,
    <a href="https://trac.torproject.org/projects/tor/query?status=!closed&component=Metrics%2Fmetrics-lib&order=priority">bug tracker</a>)</h3>

    <p>metrics-lib is a Java library that processes Tor network data
    provided by <a href="#project-collector">CollecTor</a> or from other
    sources.</p>

    <a id="project-metrics"></a>
    <h3><a href="https://metrics.torproject.org/">Metrics</a> (<a
    href="https://gitweb.torproject.org/metrics-web.git">web</a>)</h3>

    <p>
    Processing and analytics of consensus data, provided to users via the
    metrics portal. This has been under active development for several years by
    Karsten Loesing.
    </p>

    <a id="project-atlas"></a>
    <h3><a href="https://atlas.torproject.org/">Atlas</a> (<a
    href="https://gitweb.torproject.org/atlas.git">code</a>)</h3>

    <p>
    Atlas is a web application to discover Tor relays and bridges. It provides
    useful information on how relays are configured along with graphics about
    their past usage.
    </p>

    <p>
    This is the spiritual successor to <a
    href="https://gitweb.torproject.org/torstatus.git">TorStatus</a>, the <a
    href="https://svn.torproject.org/svn/torstatus/trunk/">original
    codebase</a> for which was written in PHP, and rewritten by students from
    Wesleyan as Django. If you dig into this space then also check out <a
    href="http://globe.rndm.de/">Globe</a>, another similar site that's since
    been discontinued.
    </p>

    <a id="project-compass"></a>
    <h3><a href="https://compass.torproject.org/">Compass</a> (<a
    href="https://gitweb.torproject.org/compass.git">code</a>, <a
    href="https://trac.torproject.org/projects/tor/query?status=accepted&status=assigned&status=needs_review&status=new&status=reopened&component=Metrics%2FCompass&order=priority">bug
    tracker</a>)</h3>

    <p>
    Compass is a web and command line application that filters and
    aggregates the Tor relays based on various attributes.
    </p>

    <a id="project-onionoo"></a>
    <h3><a href="https://onionoo.torproject.org/">Onionoo</a> (<a
    href="https://gitweb.torproject.org/onionoo.git">code</a>,
    <a href="https://trac.torproject.org/projects/tor/query?status=accepted&status=assigned&status=needs_review&status=new&status=reopened&component=Metrics%2FOnionoo&order=priority">bug tracker</a>)</h3>

    <p>
    Onionoo is a JSON based protocol to learn information about currently
    running Tor relays and bridges.
    </p>

    <a id="project-exitmap"></a>
    <h3><a href="http://www.cs.kau.se/philwint/spoiled_onions/">ExitMap</a> (<a
    href="https://github.com/NullHypothesis/exitmap">code</a>, <a
    href="https://github.com/NullHypothesis/exitmap/issues">bug tracker</a>)</h3>

    <p>
    Scanner for the Tor network by Philipp Winter to detect malicious and
    misconfigured exits. For more information about how it works see his <a
    href="http://www.cs.kau.se/philwint/spoiled_onions/pets2014.pdf">Spoiled
    Onions</a> research paper.
    </p>

    <a id="project-doctor"></a>
    <h3>DocTor (<a
    href="https://gitweb.torproject.org/doctor.git">code</a>, <a
    href="https://trac.torproject.org/projects/tor/query?status=accepted&status=assigned&status=needs_review&status=new&status=reopened&component=Core+Tor%2FDocTor&order=priority">bug
    tracker</a>)</h3>

    <p>
    DocTor is a notification service that monitors newly published descriptor
    information for issues. This is primarily a service to help the tor
    directory authority operators, but it also checks for a handful of other
    issues like sybil attacks.
    </p>

    <a id="project-weather"></a>
    <h3><a href="https://trac.torproject.org/projects/tor/wiki/org/roadmaps/Weather">Weather</a> (<a
    href="https://gitweb.torproject.org/weather.git">code</a>, <a
    href="https://trac.torproject.org/projects/tor/query?status=accepted&status=assigned&status=needs_review&status=new&status=reopened&component=Metrics%2FTor+Weather&order=priority">bug
    tracker</a>)</h3>

    <p>
    Provides automatic notification to subscribed relay operators when their
    relay's unreachable. This underwent a rewrite by the <a
    href="http://hfoss.wesleyan.edu/">Wesleyan HFOSS team</a>, which went live
    in early 2011.
    </p>

    <a id="project-gettor"></a>
    <h3><a href="https://trac.torproject.org/projects/tor/wiki/org/roadmaps/GetTor">GetTor</a> (<a
    href="https://gitweb.torproject.org/gettor.git">code</a>, <a
    href="https://trac.torproject.org/projects/tor/query?status=accepted&status=assigned&status=needs_review&status=new&status=reopened&component=Applications%2FGetTor&order=priority">bug
    tracker</a>)</h3>

    <p>
    E-mail autoresponder providing Tor's packages over SMTP. This has been
    relatively unchanged for quite a while.
    </p>

    <a id="project-torcheck"></a>
    <h3><a href="https://trac.torproject.org/projects/tor/wiki/org/roadmaps/TorCheck">TorCheck</a> (<a
    href="https://gitweb.torproject.org/check.git">code</a>, <a
    href="https://trac.torproject.org/projects/tor/query?status=accepted&status=assigned&status=needs_review&status=new&status=reopened&component=Applications%2FTor+Check&order=priority">bug
    tracker</a>)</h3>

    <p>
    Site for determining if the visitor is using Tor or not.
    </p>

    <a id="project-bridgedb"></a>
    <h3><a href="https://pythonhosted.org/bridgedb/">BridgeDB</a> (<a
    href="https://gitweb.torproject.org/bridgedb.git">code</a>, <a
    href="https://trac.torproject.org/projects/tor/query?status=accepted&status=assigned&status=needs_review&status=new&status=reopened&component=Obfuscation%2FBridgeDB&order=priority">bug
    tracker</a>)</h3>

    <p>
    Backend bridge distributor, handling the various pools they're distributed
    in. This was actively developed until Fall of 2010.
    </p>

    <a id="project-ooni-probe"></a>
    <h3><a href="https://ooni.torproject.org/">Ooni Probe</a> (<a
    href="https://github.com/TheTorProject/ooni-probe/">code</a>, <a
    href="https://github.com/TheTorProject/ooni-probe/issues">bug
    tracker</a>)</h3>

    <p>
    Censorship scanner, checking your local connection for blocked or modified
    content.
    </p>

    <a id="project-torps"></a>
    <h3>TorPS</a> (<a href="https://github.com/torps/torps">code</a>)</h3>

    <p>
    The Tor Path Simulator (TorPS) is a tool for efficiently simulating
    path selection in Tor. It chooses circuits and assigns user streams to
    those circuits in the same way that Tor does. TorPS is fast enough to
    perform thousands of simulations over periods of months.
    </p>

    <a id="project-torflow"></a>
    <h3><a href="https://trac.torproject.org/projects/tor/wiki/org/roadmaps/TorFlow">TorFlow</a> (<a
    href="https://gitweb.torproject.org/torflow.git">code</a>, <a
    href="https://trac.torproject.org/projects/tor/query?status=accepted&status=assigned&status=needs_review&status=new&status=reopened&component=Metrics%2FTorflow&order=priority">bug
    tracker</a>)</h3>

    <p>
    Library and collection of services for actively monitoring the Tor network.
    These include the Bandwidth Scanners (measuring throughput of relays) and
    SoaT (scans for malicious or misconfigured exit nodes). SoaT was last
    actively developed in the Summer of 2010, and the Bandwidth Scanners a few
    months later. Both have been under active use since then, but development
    has stopped.
    </p>

    <a id="project-tor2web"></a>
    <h3><a
    href="https://www.tor2web.org">Tor2web</a> (<a
    href="https://github.com/globaleaks/tor2web-3.0/wiki">code</a>)</h3>

    <p>
    Tor2web allows Internet users to browse websites running in <a
    href="<page docs/hidden-services>">Tor hidden services</a>. It trades
    user anonymity for usability by allowing anonymous content to be
    distributed to non-anonymous users.
    </p>

    <a id="project-collector"></a>
    <h3><a href="https://collector.torproject.org/">CollecTor</a>
    (<a href="https://gitweb.torproject.org/collector.git">code</a>,
    <a href="https://trac.torproject.org/projects/tor/query?status=!closed&component=Metrics%2FCollecTor&order=priority">bug tracker</a>)</h3>

    <p>CollecTor is the Tor network data archive that powers other
    services like <a href="#project-metrics">Metrics</a> and
    <a href="#project-onionoo">Onionoo</a>.</p>

    <a id="project-exonerator"></a>
    <h3><a href="https://exonerator.torproject.org/">ExoneraTor</a>
    (<a href="https://gitweb.torproject.org/exonerator.git">code</a>,
    <a href="https://trac.torproject.org/projects/tor/query?status=!closed&component=Metrics%2FExoneraTor&order=priority">bug tracker</a>)</h3>

    <p>ExoneraTor is a service that answers the question whether there was
    a Tor relay running on a given IP address on a given date.</p>

    <a id="project-anonbib"></a>
    <h3><a
    href="http://freehaven.net/anonbib/">Anonymity Bibliography</a> (<a
    href="https://gitweb.torproject.org/anonbib.git">code</a>)</h3>

    <p>
    Anonbib is a list of important papers in the field of anonymity. It's
    also a set of scripts to generate the website from Latex (bibtex). If
    we're missing any important papers, please let us know!
    </p>

    <a id="Coding"></a>
    <a id="Summer"></a>
    <h2><a class="anchor" href="#Coding">Project Ideas</a></h2>

    <p>
    You may find some of these projects to be good ideas for <a href="<page
    about/gsoc>">Google Summer of Code</a>. We have labelled each idea with
    which of our <a href="<page about/corepeople>">core developers</a> would be
    good mentors. If one or more of these ideas looks promising to you, please
    <a href="<page about/contact>">contact us</a> to discuss your plans rather
    than sending blind applications. You may also want to propose your own
    project idea &mdash; which often results in the best applications.
    </p>

    <ol>

    <a id="improveHiddenServices"></a>
    <li>
    <b>Help improve Tor hidden services</b>
    <br>
    Language: <i>C</i>
    <br>
    Likely Mentors: <i>George (asn), David Goulet (dgoulet)</i>
    <br><br>
    <p>
The hidden services team is busy implementing <a
href="https://gitweb.torproject.org/torspec.git/tree/proposals/224-rend-spec-ng.txt">proposal
224</a> but we are always open to mentoring fun and exciting hidden
service projects.
    </p>

    <p>
In the past, we've mentored a wide variety of projects related to hidden
services, ranging from <a
href="https://lists.torproject.org/pipermail/tor-dev/2016-April/010832.html">onion
search engines</a>, <a
href="https://lists.torproject.org/pipermail/tor-talk/2015-May/037966.html">to
scaling techniques for hidden services</a>,
and also various approaches
of making onion services more <a
href="https://lists.torproject.org/pipermail/tor-dev/2012-June/003588.html">usable</a>
<a href="https://lists.torproject.org/pipermail/tor-dev/2015-May/008826.html">by
common people</a>.
    </p>

    <p>
Let us know if you have a project you would like to work on, or check
our proposals and technical documents for <a
href="https://lists.torproject.org/pipermail/tor-dev/2016-October/011514.html">various</a>
ideas.
    </p>
    </li>

    <a id="feedbackExtension"></a>
    <li>
    <b>Feedback Extension for Tor Browser</b>
    <br>
    Likely Mentors: <i>Nima (mrphs)</i>, <i>Sukhbir (sukhe)</i>
    <p>
    Design and implement an extension for Tor Browser that can be used to gather
    end-user UI/UX feedback on an opt-in basis. While the design and
    implementation is left as an exercise for the applicant (and also serves as
    the qualification task), examples of the information we are looking to gather
    can include troubleshooting network connectivity issues, testing the various
    pluggable transports, or gathering information about the network of the users.
    </p>

    <p>
    Please propose the extension design in a way that the information is strictly
    on an opt-in basis and scrubs any information that can be used to identify a
    user, and also come up with a way to send the gathered information to a
    central server, whether to an onion address (if the user has Tor running), or
    otherwise. To start with, we are looking to gather only text as part of the
    feedback process.
    </p>
    </li>

    <a id="torBrowserCrashReport"></a>
    <li>
    <b>Crash Reporter for Tor Browser</b>
    <br>
    Likely Mentors: <i>Tom Ritter (tjr)</i>, <i>Georg (GeKo)</i>
    <p>
    Currently Tor Browser disables the Crash Reporter. We would like to
    build it reproducible, enable it, and configure it to report crashes
    containing non-detailed and impersonal information to Tor, on a .onion
    submission platform that would allow us to view and explore the
    crashes.
    </p>

    <p>
    The project will entail enabling the Crash Report on Tor Browser and
    creating a backend to receive reports from it. Once created, the crash
    reporter data will be analyzed and modified to fit Tor's requirements
    for personal data collection. As time permits, we will update the
    build system to ensure the crash reporter is built reproducibly and
    add data analysis tools for the crash report database to visualize top
    crashers and similar statistics.
    </p>
    </li>

    <a id="fasterTorBrowser"></a>
    <li>
    <b>Make Tor Browser Faster</b>
    <br>
    Likely Mentors: <i>Tom Ritter (tjr)</i>, <i>Georg (GeKo)</i>
    <p>
    This project will enable and take advantage of HTTP/2, the Alt-Srv
    header, and tor's new single hop .onion mode to enable websites to
    transparently move their traffic to a .onion address. In addition to
    improvements in security, we will benchmark page load and paint times
    under normal HTTP/1.1, HTTP/2, and when taking advantage of features
    such as Server Push.
    </p>
    </li>

    <a id="stemDescriptors"></a>
    <li>
    <b>Stem Descriptors</b>
    <br>
    Language: <i>Python</i>
    <br>
    Likely Mentors: <i>Damian Johnson (atagar), Philipp Winter (phw)</i>
    <p>
    <a href="https://stem.torproject.org/">Stem</a> is a Python library for working with tor. With it you can build applications on tor as well as learn information about the relay network. This project concerns this second capability.
    </p>

    <p>
    Information about relays are published hourly in documents called <a href="https://stem.torproject.org/tutorials/mirror_mirror_on_the_wall.html">descriptors</a>. With Stem you can download, parse, and validate all kinds of descriptor documents.
    </p>

    <p>
    Ideas welcome! You're encouraged to brainstorm improvements we can make to this space but here's a few to get you started...
    </p>

  <ul>
    <li><p><b><a href="https://trac.torproject.org/projects/tor/ticket/11045">Validate signatures in the consensus</a></b>. Stem has the ability to validate cryptographic signatures in several descriptor types but not the consensus.</p></li>
    <li><p><b><a href="https://trac.torproject.org/projects/tor/ticket/21086">Migrate from pycrypto to a supported library</a></b>. Stem presently uses pycrypto for signature validation but it's no longer maintained. We should evaluate options and move to whatever whavever the cool kids are using nowadays.</p></li>
    <li><p><b><a href="https://trac.torproject.org/projects/tor/ticket/18856">Retrieve descriptors over tor's ORPort</a></b>. Tor relays commonly provide two ports, an <b>ORPort</b> which is used by clients and a <b>DirPort</b> which is obsolete nowadays but in the past was used by tor to download descriptors. Stem still uses tor's DirPort to retrieve descriptors, but it would be neat if we could download from the ORPort instead.</p>
      <p>This requires implementing part of tor's communication protocol. Depending how complicated this is it might be neat to expand this task to allow the full construction of circuits, allowing client usage of tor without the C executable. Keep in mind though that this later bit hasn't been investigated and might be a pipe dream. ;P</p></li>
    <li><p><b>Improve performance of reading descriptors</b>. Stem <a href="https://stem.torproject.org/tutorials/mirror_mirror_on_the_wall.html#are-there-any-other-parsing-libraries">isn't the only descriptor parsing library</a> and sadly is the slowest. Tricks like lazy loading have substantially improved our performance but no doubt a dedicated effort to profile Stem would find more low hanging fruit.</p></li>
  </ul>


    <p>
    <b>As part of applying for this project please get your hands wet with the codebase by contributing some patches for <a href="https://stem.torproject.org/faq.html#how-do-i-get-started">Stem</a>!</b>
    </p>
    </li>

    <a id="ahmiaSearch"></a>
    <li>
    <b>Ahmia - Hidden Service Search</b>
    <br>
    Language: <i>Python, Django</i>
    <br>
    Likely Mentors: <i>Juha Nurmi (numes), George (asn)</i>
    <p>
    Ahmia is open-source search engine software for Tor hidden service deep
    dark web sites. You can test the running search engine at ahmia.fi. For
    more information see our <a
    href="https://blog.torproject.org/category/tags/ahmiafi">blog post about
    Ahmia's GSoC2014 development</a>.
    </p>

    <p>
    Ahmia is a working search engine that indexes, searches, and catalogs
    content published on Tor Hidden Services. Furthermore, it is an environment
    to share meaningful insights, statistics, insights, and news about the Tor
    network itself. In this context, there is a lot of work to do.
    </p>

    <p>
    The Ahmia web service is written using the Django web framework. As a
    result, the server-side language is Python. On the client-side, most of the
    pages are plain HTML. There are some pages that require JavaScript, but the
    search itself works without client-side JavaScript.
    </p>

    <p>
    There are several possible directions for this project, including...
    </p>

    <ol>
      <li>Automate blacklisting (very important)<br />
        <ul>
          <li>Fetch a list of child abuse media sites</li>
          <li>Remove these sites from the search results</li>
        </ul>
      </li>
      <li>Add hidden services funtion (very important)<br />
        <ul>
          <li>You can add onions using HTML form</li>
          <li>Call the crawler immidiately when a new site is added</li>
        </ul>
      </li>
      <li>Elasticsearch<br />
        <ul>
          <li>Must be updated to 5.X.X sooner or later</li>
          <li>Adjust the settings</li>
          <li>Automatically remove data older than, for instance, 90 days</li>
        </ul>
      </li>
      <li>Maintainance<br />
        <ul>
          <li>Update all software dependencies</li>
          <li>Automate crash recovery for Tor, Elasticsearch and crawler</li>
        </ul>
      </li>
    </ol>
    </li>

<!--
    <a id=""></a>
    <li>
    <b></b>
    <br>
    Language: <i>Python</i>
    <br>
    Likely Mentors: <i>Damian (atagar)</i>
    <br><br>
    <p>

    </p>

    <p>

    </p>
    </li>
-->

    <li>
    <b>Bring up new ideas!</b>
    <br>
    Don't like any of these? Look at the <a
    href="/press/presskit/2008-12-19-roadmap-full.pdf">Tor development
    roadmap</a> for more ideas, or just try out Tor and Tor Browser,
    and find out what you think needs fixing.
    Some of the <a href="<spectree>proposals">current proposals</a>
    might also be short on developers.
    </li>

    </ol>
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