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<div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Mesh-networking and messaging app</div> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox vevent"><caption class="infobox-title summary">Briar</caption><tbody><tr><td colspan="2" class="infobox-image logo"><span class="mw-default-size" typeof="mw:File"><a href="/wiki/File:Briar_logo.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/d/d0/Briar_logo.png" decoding="async" width="236" height="310" class="mw-file-element" data-file-width="236" data-file-height="310" /></a></span></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Initial release</th><td class="infobox-data">9 May 2018<span class="noprint">; 6 years ago</span><span style="display:none"> (<span class="bday dtstart published updated">2018-05-09</span>)</span><sup id="cite_ref-briar-download_1-0" class="reference"><a href="#cite_note-briar-download-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr style="display: none;"><td colspan="2" class="infobox-full-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"></td></tr><tr><th colspan="2" class="infobox-header"><a href="/wiki/Software_release_life_cycle" title="Software release life cycle">Stable release(s)</a></th></tr><tr><td colspan="2" class="infobox-full-data"><div style="margin:0px;"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"><table class="infobox-subbox"><tbody><tr><th scope="row" class="infobox-label">Android</th><td class="infobox-data">1.5.9<sup id="cite_ref-wikidata-ea4f9fe6901afc63ae86953b70588cf87ab0a2e4-v18_2-0" class="reference"><a href="#cite_note-wikidata-ea4f9fe6901afc63ae86953b70588cf87ab0a2e4-v18-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> <span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q18210428?uselang=en#P348" title="Edit this on Wikidata"><img alt="Edit this on Wikidata" src="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span> / 16 January 2024</td></tr></tbody></table> </div></td></tr><tr style="display:none"><td colspan="2"> </td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Repository_(version_control)" title="Repository (version control)">Repository</a></th><td class="infobox-data"><span class="url"><a rel="nofollow" class="external text" href="https://code.briarproject.org/briar/briar">code<wbr />.briarproject<wbr />.org<wbr />/briar<wbr />/briar</a></span></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Written in</th><td class="infobox-data">Java, Kotlin<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Operating_system" title="Operating system">Operating system</a></th><td class="infobox-data"><a href="/wiki/Android_(operating_system)" title="Android (operating system)">Android</a>, Windows, macOS, desktop Linux; support for <a href="/wiki/List_of_open-source_mobile_phones" title="List of open-source mobile phones">Linux mobile</a> operating systems in beta</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Software_categories#Categorization_approaches" title="Software categories">Type</a></th><td class="infobox-data"><a href="/wiki/Mesh_networking" title="Mesh networking">Mesh networking</a>, <a href="/wiki/Instant_messaging" title="Instant messaging">instant messaging</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Software_license" title="Software license">License</a></th><td class="infobox-data"><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GPL-3.0-or-later</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Website</th><td class="infobox-data"><span class="url"><a rel="nofollow" class="external text" href="https://briarproject.org/">briarproject<wbr />.org</a></span></td></tr></tbody></table> <p><b>Briar</b> is an <a href="/wiki/Open-source_software" title="Open-source software">open-source software</a> communication technology, intended to provide secure and resilient <a href="/wiki/Peer-to-peer" title="Peer-to-peer">peer-to-peer</a> communications with no centralized servers and minimal reliance on external infrastructure. Messages can be transmitted through <a href="/wiki/Bluetooth" title="Bluetooth">Bluetooth</a>, <a href="/wiki/Wi-Fi" title="Wi-Fi">Wi-Fi</a>, over the internet via <a href="/wiki/Tor_(anonymity_network)" class="mw-redirect" title="Tor (anonymity network)">Tor</a> or removable storage, such as <a href="/wiki/USB_flash_drive" title="USB flash drive">USB sticks</a>. All communication is <a href="/wiki/End-to-end_encryption" title="End-to-end encryption">end-to-end</a> encrypted. Relevant content is stored in encrypted form on participating devices. Long-term plans for the project include support for distributed applications such as crisis mapping and collaborative document editing. </p><p>The initial target audience for Briar includes "activists, journalists and civil society" with plans to make the system "simple enough to help anyone keep their data safe."<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> As the ability to function in the absence of internet infrastructure may also make the project valuable to disaster response and aid organizations, the developers are working with the Open Humanitarian Initiative and Taarifa.<sup id="cite_ref-knight_5-0" class="reference"><a href="#cite_note-knight-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> Ultimately, the developers aim to create a system which is "as simple to use as <a href="/wiki/WhatsApp" title="WhatsApp">WhatsApp</a>, as secure as <a href="/wiki/Pretty_Good_Privacy" title="Pretty Good Privacy">PGP</a>, and that keeps working if somebody breaks the Internet."<sup id="cite_ref-knight_5-1" class="reference"><a href="#cite_note-knight-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> It is possible for an Android device to download Briar from another Android device which already has Briar installed.<sup id="cite_ref-dencentralize_6-0" class="reference"><a href="#cite_note-dencentralize-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p><p>Briar's source code is published as <a href="/wiki/Free_software" title="Free software">free software</a> and the Android app is distributed under the terms of the <a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GNU GPL-3.0-or-later</a> license, while the desktop version is released under the <a href="/wiki/Affero_General_Public_License" class="mw-redirect" title="Affero General Public License">Affero General Public License</a>.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> Briar Desktop runs on Windows, macOS and Linux. Briar Desktop will also run on true Linux (non-Android) mobile phones, running operating systems like <a href="/wiki/Manjaro" title="Manjaro">Manjaro</a>, <a href="/wiki/PureOS" title="PureOS">PureOS</a> and <a href="/wiki/PostmarketOS" title="PostmarketOS">postmarketOS</a>,<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> once it has been adapted to mobile form-factors.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p><p>Briar’s core protocol, threat model, development process, and user experience design began development in 2011 by Michael Rogers and Eleanor Saitta.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </p><p>Briar was audited by <a href="/wiki/Cure53" title="Cure53">Cure53</a> and spoken highly of in a report delivered 20 March 2017, and was recommended to be given a second audit after development completes.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> As of 2018 the project received $361,100 of funding from the <i><a href="/wiki/Open_Technology_Fund" title="Open Technology Fund">Open Technology Fund</a></i>.<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> </p><p>Briar uses the Bramble <a href="/wiki/Protocol_suite" class="mw-redirect" title="Protocol suite">protocol suite</a> (Bramble Handshake Protocol, Bramble QR Code Protocol, Bramble Rendezvous Protocol, Bramble Synchronisation Protocol, Bramble Transport Protocol) that is specifically designed for <a href="/wiki/Delay-tolerant_networking" title="Delay-tolerant networking">delay-tolerant networks</a>.<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> As of January 2023, these protocols are not implemented by other messengers; Briar can only talk to Briar. </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Briar_(software)&action=edit&section=1" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Mesh_networking" title="Mesh networking">Mesh networking</a></li> <li><a href="/wiki/Smartphone_ad_hoc_network" title="Smartphone ad hoc network">Smartphone ad hoc network</a></li> <li>Specific projects/protocols <ul><li><a href="/wiki/B.A.T.M.A.N." title="B.A.T.M.A.N.">B.A.T.M.A.N.</a></li> <li><a href="/wiki/Jami_(software)" title="Jami (software)">Jami (software)</a></li> <li><a href="/wiki/Serval_Project" title="Serval Project">Serval Project</a></li> <li><a href="/wiki/Tox_(protocol)" title="Tox (protocol)">Tox (protocol)</a></li> <li><a href="/wiki/Bridgefy" title="Bridgefy">Bridgefy</a></li></ul></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Briar_(software)&action=edit&section=2" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-briar-download-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-briar-download_1-0">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://briarproject.org/news/2018-1.0-released-new-funding.html">"Secure P2P Messenger Releases First Version, Receives New Funding"</a>. 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Retrieved <span class="nowrap">2017-07-25</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=GitLab+project+repository&rft_id=https%3A%2F%2Fcode.briarproject.org%2Fakwizgran%2Fbriar&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABriar+%28software%29" class="Z3988"></span></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://nlnet.nl/project/Briar-beyond-Android/">"NLnet; Briar Desktop"</a>. <i>nlnet.nl</i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=nlnet.nl&rft.atitle=NLnet%3B+Briar+Desktop&rft_id=https%3A%2F%2Fnlnet.nl%2Fproject%2FBriar-beyond-Android%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABriar+%28software%29" class="Z3988"></span></span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://code.briarproject.org/briar/briar/-/issues/1344">"Briar app for mobile linux devices (#1344) · Issues · briar / briar · GitLab"</a>. <i>GitLab</i>. 15 July 2018.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=GitLab&rft.atitle=Briar+app+for+mobile+linux+devices+%28%231344%29+%C2%B7+Issues+%C2%B7+briar+%2F+briar+%C2%B7+GitLab&rft.date=2018-07-15&rft_id=https%3A%2F%2Fcode.briarproject.org%2Fbriar%2Fbriar%2F-%2Fissues%2F1344&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABriar+%28software%29" class="Z3988"></span></span> </li> <li id="cite_note-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-10">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://code.briarproject.org/briar/briar/-/commit/cd4f99df3dec637da6ab4de96fb78c0a24628826">"Initial commit with new directory structure. (cd4f99df) · Commits · briar / briar · GitLab"</a>. <i>GitLab</i>. 2011-06-21<span class="reference-accessdate">. Retrieved <span class="nowrap">2024-06-25</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=GitLab&rft.atitle=Initial+commit+with+new+directory+structure.+%28cd4f99df%29+%C2%B7+Commits+%C2%B7+briar+%2F+briar+%C2%B7+GitLab&rft.date=2011-06-21&rft_id=https%3A%2F%2Fcode.briarproject.org%2Fbriar%2Fbriar%2F-%2Fcommit%2Fcd4f99df3dec637da6ab4de96fb78c0a24628826&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABriar+%28software%29" class="Z3988"></span></span> </li> <li id="cite_note-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-11">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://dymaxion.org/saitta-resume-a4.pdf">"eleanOr Saitta - Dymaxion.org"</a> <span class="cs1-format">(PDF)</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=eleanOr+Saitta+-+Dymaxion.org&rft_id=https%3A%2F%2Fdymaxion.org%2Fsaitta-resume-a4.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABriar+%28software%29" class="Z3988"></span></span> </li> <li id="cite_note-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-12">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://briarproject.org/raw/BRP-01-report.pdf">"Pentest-Report Briar Project App & Protocol 03.2017"</a> <span class="cs1-format">(PDF)</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Pentest-Report+Briar+Project+App+%26+Protocol+03.2017&rft_id=https%3A%2F%2Fbriarproject.org%2Fraw%2FBRP-01-report.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABriar+%28software%29" class="Z3988"></span></span> </li> <li id="cite_note-13"><span class="mw-cite-backlink"><b><a href="#cite_ref-13">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://briarproject.org/news/2017-beta-released-security-audit.html">"Darknet Messenger Releases Beta, Passes Security Audit"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Darknet+Messenger+Releases+Beta%2C+Passes+Security+Audit&rft_id=https%3A%2F%2Fbriarproject.org%2Fnews%2F2017-beta-released-security-audit.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABriar+%28software%29" class="Z3988"></span></span> </li> <li id="cite_note-14"><span class="mw-cite-backlink"><b><a href="#cite_ref-14">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFOpen_Technology_Fund" class="citation web cs1"><a href="/wiki/Open_Technology_Fund" title="Open Technology Fund">Open Technology Fund</a>. <a rel="nofollow" class="external text" href="https://www.opentech.fund/results/supported-projects/briar/">"Projects we support - Briar"</a>. <i>Open Technology Fund Website</i>. <a href="/wiki/U.S._Agency_for_Global_Media" title="U.S. Agency for Global Media">U.S. Agency for Global Media</a><span class="reference-accessdate">. Retrieved <span class="nowrap">2022-03-13</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Open+Technology+Fund+Website&rft.atitle=Projects+we+support+-+Briar&rft.au=Open+Technology+Fund&rft_id=https%3A%2F%2Fwww.opentech.fund%2Fresults%2Fsupported-projects%2Fbriar%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABriar+%28software%29" class="Z3988"></span></span> </li> <li id="cite_note-15"><span class="mw-cite-backlink"><b><a href="#cite_ref-15">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://code.briarproject.org/briar/briar/-/wikis/A-Quick-Overview-of-the-Protocol-Stack">"A Quick Overview of the Protocol Stack"</a>. 30 September 2019<span class="reference-accessdate">. Retrieved <span class="nowrap">10 January</span> 2023</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=A+Quick+Overview+of+the+Protocol+Stack&rft.date=2019-09-30&rft_id=https%3A%2F%2Fcode.briarproject.org%2Fbriar%2Fbriar%2F-%2Fwikis%2FA-Quick-Overview-of-the-Protocol-Stack&rfr_id=info%3Asid%2Fen.wikipedia.org%3ABriar+%28software%29" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Briar_(software)&action=edit&section=3" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><span class="official-website"><span class="url"><a rel="nofollow" class="external text" href="https://briarproject.org">Official website</a></span></span></li></ul> <div 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abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Instant_messaging" title="Template:Instant messaging"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Instant_messaging" title="Template talk:Instant messaging"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Instant_messaging" title="Special:EditPage/Template:Instant messaging"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Instant_messaging" style="font-size:114%;margin:0 4em"><a href="/wiki/Instant_messaging" title="Instant messaging">Instant messaging</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Protocols<br />(<a href="/wiki/Comparison_of_instant_messaging_protocols" title="Comparison of instant messaging protocols">comparison</a>)</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Open</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Distributed_Data_Protocol" class="mw-redirect" title="Distributed Data Protocol">DDP</a></li> <li><a href="/wiki/Instant_Messaging_and_Presence_Protocol" title="Instant Messaging and Presence Protocol">IMPP</a></li> <li><a href="/wiki/IRC" title="IRC">IRC</a></li> <li><a href="/wiki/Matrix_(protocol)" title="Matrix (protocol)">Matrix</a></li> <li><a href="/wiki/MTProto" class="mw-redirect" title="MTProto">MTProto</a></li> <li><a href="/wiki/Retroshare" title="Retroshare">Retroshare</a></li> <li><a href="/wiki/Signal_Protocol" title="Signal Protocol">Signal Protocol</a></li> <li><a href="/wiki/Session_Initiation_Protocol" title="Session Initiation Protocol">SIP</a> <ul><li><a href="/wiki/Message_Session_Relay_Protocol" title="Message Session Relay Protocol">MSRP</a></li> <li><a href="/wiki/SIMPLE_(instant_messaging_protocol)" title="SIMPLE (instant messaging protocol)">SIMPLE</a></li></ul></li> <li><a href="/wiki/Tox_(protocol)" title="Tox (protocol)">Tox</a></li> <li><a href="/wiki/XMPP" title="XMPP">XMPP</a> <ul><li><a href="/wiki/Jingle_(protocol)" title="Jingle (protocol)">Jingle</a></li> <li><a href="/wiki/Google_Wave_Federation_Protocol" title="Google Wave Federation Protocol">WFP</a></li></ul></li> <li><a href="/wiki/Zephyr_(protocol)" title="Zephyr (protocol)">Zephyr</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Closed</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Microsoft_Notification_Protocol" title="Microsoft Notification Protocol">MSNP</a></li> <li><a href="/wiki/OSCAR_protocol" title="OSCAR protocol">OSCAR</a> <ul><li><a href="/wiki/TOC_protocol" title="TOC protocol">TOC</a></li></ul></li> <li><a href="/wiki/Skype_protocol" title="Skype protocol">Skype</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Services</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Band_(software)" title="Band (software)">Band</a></li> <li><a href="/wiki/BBM_Enterprise" title="BBM Enterprise">BBM Enterprise</a></li> <li><a href="/wiki/Beeper_(application)" title="Beeper (application)">Beeper</a></li> <li><a href="/wiki/BiP_(software)" title="BiP (software)">BiP</a></li> <li><a href="/wiki/DingTalk" title="DingTalk">DingTalk</a></li> <li><a href="/wiki/Discord" title="Discord">Discord</a></li> <li><a href="/wiki/Element_(software)" title="Element (software)">Element</a></li> <li><a href="/wiki/Google_Chat" title="Google Chat">Google Chat</a></li> <li><a href="/wiki/Google_Meet" title="Google Meet">Google Meet</a></li> <li><a href="/wiki/Google_Messages" title="Google Messages">Google Messages</a></li> <li><a href="/wiki/GroupMe" title="GroupMe">GroupMe</a></li> <li><a href="/wiki/Guilded" title="Guilded">Guilded</a></li> <li><a href="/wiki/HipChat" title="HipChat">HipChat</a></li> <li><a href="/wiki/IGap" title="IGap">iGap</a></li> <li><a href="/wiki/IMessage" title="IMessage">iMessage</a></li> <li><a href="/wiki/Imo.im" title="Imo.im">Imo</a></li> <li><a href="/wiki/IRC#Networks" title="IRC">IRC Networks</a></li> <li><a href="/wiki/Jongla" title="Jongla">Jongla</a></li> <li><a href="/wiki/KakaoTalk" title="KakaoTalk">KakaoTalk</a></li> <li><a href="/wiki/Kik_Messenger" title="Kik Messenger">Kik</a></li> <li><a href="/wiki/Lark_(software)" title="Lark (software)">Lark</a></li> <li><a href="/wiki/Libon_(service)" title="Libon (service)">Libon</a></li> <li><a href="/wiki/Line_(software)" title="Line (software)">Line</a></li> <li><a href="/wiki/Marco_Polo_(app)" title="Marco Polo (app)">Marco Polo</a></li> <li><a href="/wiki/Mattermost" title="Mattermost">Mattermost</a></li> <li><a href="/wiki/Messenger_(software)" title="Messenger (software)">Messenger</a></li> <li><a href="/wiki/The_Palace_(computer_program)" title="The Palace (computer program)">The Palace</a></li> <li><a href="/wiki/Tencent_QQ" title="Tencent QQ">QQ</a></li> <li><a href="/wiki/Session_(software)" title="Session (software)">Session</a></li> <li><a href="/wiki/Signal_(software)" title="Signal (software)">Signal</a></li> <li><a href="/wiki/Skype" title="Skype">Skype</a></li> <li><a href="/wiki/Slack_(software)" title="Slack (software)">Slack</a></li> <li><a href="/wiki/Snapchat" title="Snapchat">Snapchat</a></li> <li><a href="/wiki/Snow_(app)" title="Snow (app)">Snow</a></li> <li><a href="/wiki/Tango_Live" title="Tango Live">Tango Live</a></li> <li><a href="/wiki/Telegram_(software)" title="Telegram (software)">Telegram</a></li> <li><a href="/wiki/Textfree" title="Textfree">Textfree/Pinger</a></li> <li><a href="/wiki/Threema" title="Threema">Threema</a></li> <li><a href="/wiki/Tox_(protocol)" title="Tox (protocol)">Tox</a></li> <li><a href="/wiki/Trillian_(software)" title="Trillian (software)">Trillian</a></li> <li><a href="/wiki/Viber" title="Viber">Viber</a></li> <li><a href="/wiki/VK_(service)" title="VK (service)">VK Messenger</a></li> <li><a href="/wiki/WeChat" title="WeChat">WeChat</a></li> <li><a href="/wiki/WhatsApp" title="WhatsApp">WhatsApp</a></li> <li><a href="/wiki/Wickr" title="Wickr">Wickr</a></li> <li><a href="/wiki/Windows_Messenger_service" title="Windows Messenger service">Windows Messenger service</a></li> <li><a href="/wiki/The_World%27s_Online_Festival" title="The World's Online Festival">WOLF</a></li> <li><a href="/wiki/Zoom_Video_Communications" title="Zoom Video Communications">Zoom</a></li> <li><a href="/wiki/Zulip" title="Zulip">Zulip</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Clients<br />(<a href="/wiki/Comparison_of_cross-platform_instant_messaging_clients" title="Comparison of cross-platform instant messaging clients">comparison</a>)</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Single protocol</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Baidu" title="Baidu">Baidu Hi</a></li> <li><a href="/wiki/BBM_Enterprise" title="BBM Enterprise">BBM Enterprise</a></li> <li><a class="mw-selflink selflink">Briar</a></li> <li><a href="/wiki/Element_(software)" title="Element (software)">Element</a></li> <li><a href="/wiki/FaceTime" title="FaceTime">FaceTime</a></li> <li><a href="/wiki/Gadu-Gadu" title="Gadu-Gadu">Gadu-Gadu</a></li> <li><a href="/wiki/GroupMe" title="GroupMe">GroupMe</a></li> <li><a href="/wiki/HCL_Sametime" title="HCL Sametime">HCL Sametime</a></li> <li><a href="/wiki/IMVU" title="IMVU">IMVU</a></li> <li><a href="/wiki/Jami_(software)" title="Jami (software)">Jami</a></li> <li><a href="/wiki/Jongla" title="Jongla">Jongla</a></li> <li><a href="/wiki/Linphone" title="Linphone">Linphone</a></li> <li><a href="/wiki/Messenger_(software)" title="Messenger (software)">Messenger</a></li> <li><a href="/wiki/Tencent_QQ" title="Tencent QQ">QQ</a></li> <li><a href="/wiki/Retroshare" title="Retroshare">Retroshare</a></li> <li><a href="/wiki/Ricochet_(software)" title="Ricochet (software)">Ricochet</a></li> <li><a href="/wiki/Session_(software)" title="Session (software)">Session</a></li> <li><a href="/wiki/Signal_(software)" title="Signal (software)">Signal</a></li> <li><a href="/wiki/Skype" title="Skype">Skype</a></li> <li><a href="/wiki/Telegram_(software)" title="Telegram (software)">Telegram</a></li> <li><a href="/wiki/Tox_(protocol)" title="Tox (protocol)">Tox</a></li> <li><a href="/wiki/WeChat" title="WeChat">WeChat</a></li> <li><a href="/wiki/WhatsApp" title="WhatsApp">WhatsApp</a></li> <li><a href="/wiki/Wickr" title="Wickr">Wickr</a></li> <li><a href="/wiki/Wire_(software)" title="Wire (software)">Wire</a></li> <li><a href="/wiki/The_World%27s_Online_Festival" title="The World's Online Festival">WOLF</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Multi-protocol</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Adium" title="Adium">Adium</a></li> <li><a href="/wiki/Ayttm" title="Ayttm">Ayttm</a></li> <li><a href="/wiki/Beeper_(application)" title="Beeper (application)">Beeper</a></li> <li><a href="/wiki/BitlBee" title="BitlBee">BitlBee</a></li> <li><a href="/wiki/Centericq" title="Centericq">Centericq</a></li> <li><a href="/wiki/EBuddy" title="EBuddy">eBuddy</a></li> <li><a href="/wiki/Jitsi" title="Jitsi">Jitsi</a></li> <li><a href="/wiki/Kopete" title="Kopete">Kopete</a></li> <li><a href="/wiki/Messages_(Apple)" title="Messages (Apple)">Messages</a></li> <li><a href="/wiki/Miranda_NG" title="Miranda NG">Miranda NG</a></li> <li><a href="/wiki/Nimbuzz" title="Nimbuzz">Nimbuzz</a></li> <li><a href="/wiki/Pidgin_(software)" title="Pidgin (software)">Pidgin</a> <ul><li><a href="/wiki/Finch_(software)" title="Finch (software)">Finch</a></li></ul></li> <li><a href="/wiki/Quiet_Internet_Pager" title="Quiet Internet Pager">QIP 2010</a></li> <li><a href="/wiki/Skype_for_Business" title="Skype for Business">Skype for Business</a></li> <li><a href="/wiki/KDE_Telepathy" title="KDE Telepathy">Telepathy</a></li> <li><a href="/wiki/Mozilla_Thunderbird" title="Mozilla Thunderbird">Thunderbird</a></li> <li><a href="/wiki/Trillian_(software)" title="Trillian (software)">Trillian</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/XMPP" title="XMPP">XMPP (Jabber)</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ChatSecure" title="ChatSecure">ChatSecure</a></li> <li><a href="/wiki/Conversations_(software)" title="Conversations (software)">Conversations</a></li> <li><a href="/wiki/Gajim" title="Gajim">Gajim</a></li> <li>Monal</li> <li><a href="/wiki/Psi_(instant_messaging_client)" title="Psi (instant messaging client)">Psi</a></li> <li><a href="/wiki/Spark_(XMPP_client)" title="Spark (XMPP client)">Spark</a></li> <li><a href="/wiki/Tkabber" title="Tkabber">Tkabber</a></li> <li><a href="/wiki/Xabber" title="Xabber">Xabber</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Microsoft_Notification_Protocol" title="Microsoft Notification Protocol">MSNP</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Microsoft_Teams" title="Microsoft Teams">Microsoft Teams</a></li> <li><a href="/wiki/Skype" title="Skype">Skype</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Defunct</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/List_of_defunct_instant_messaging_platforms" title="List of defunct instant messaging platforms">List of defunct instant messaging platforms</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Backchannel" title="Backchannel">Backchannel</a></li> <li><a href="/wiki/Chat_log" title="Chat log">Chat log</a></li> <li><a href="/wiki/Chatbot" title="Chatbot">Chatbot</a></li> <li><a href="/wiki/Circuit_(software)" class="mw-redirect" title="Circuit (software)">Circuit</a></li> <li><a href="/wiki/Comparison_of_user_features_of_messaging_platforms" title="Comparison of user features of messaging platforms">Comparison of user features of messaging platforms</a></li> <li><a href="/wiki/Contact_list" title="Contact list">Contact list</a></li> <li><a href="/wiki/Emoticon" title="Emoticon">Emoticon</a></li> <li><a href="/wiki/File_sharing" title="File sharing">File sharing</a></li> <li><a href="/wiki/FirstClass" title="FirstClass">FirstClass</a></li> <li><a href="/wiki/Flock_(messaging_service)" title="Flock (messaging service)">Flock</a></li> <li><a href="/wiki/Fuze_(company)" title="Fuze (company)">Fuze Box</a></li> <li><a href="/wiki/Hall.com" class="mw-redirect" title="Hall.com">Hall.com</a></li> <li><a href="/wiki/LAN_messenger" title="LAN messenger">LAN messenger</a></li> <li><a href="/wiki/Online_chat" title="Online chat">Online chat</a></li> <li><a href="/wiki/Presence_information" title="Presence information">Presence information</a></li> <li><a href="/wiki/Glip" class="mw-redirect" title="Glip">RingCentral Glip</a></li> <li><a href="/wiki/SMS_language" title="SMS language">SMS language</a></li> <li><a href="/wiki/Status_message_(instant_messaging)" title="Status message (instant messaging)">Status message</a></li> <li><a href="/wiki/U-Report" title="U-Report">U-Report</a></li> <li><a href="/wiki/Videotelephony" title="Videotelephony">Videotelephony</a></li> <li><a href="/wiki/Viva_Engage" title="Viva Engage">Viva Engage</a></li> <li><a href="/wiki/Voice_over_IP" title="Voice over IP">VoIP</a></li> <li><a href="/wiki/Webcam" title="Webcam">Webcam</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Cryptographic_software" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Cryptographic_software" title="Template:Cryptographic software"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Cryptographic_software" title="Template talk:Cryptographic software"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Cryptographic_software" title="Special:EditPage/Template:Cryptographic software"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Cryptographic_software" style="font-size:114%;margin:0 4em"><a href="/wiki/Encryption_software" title="Encryption software">Cryptographic software</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Email_client" title="Email client">Email clients</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Apple_Mail" title="Apple Mail">Apple Mail</a></li> <li><a href="/wiki/Autocrypt" title="Autocrypt">Autocrypt</a></li> <li><a href="/wiki/Claws_Mail" title="Claws Mail">Claws Mail</a></li> <li><a href="/wiki/Enigmail" title="Enigmail">Enigmail</a></li> <li><a href="/wiki/GNU_Privacy_Guard" title="GNU Privacy Guard">GPG</a> (<a href="/wiki/Gpg4win" title="Gpg4win">Gpg4win</a>)</li> <li><a href="/wiki/Kontact" title="Kontact">Kontact</a></li> <li><a href="/wiki/Microsoft_Outlook" title="Microsoft Outlook">Outlook</a></li> <li><a href="/wiki/Pretty_Easy_privacy" title="Pretty Easy privacy">p≡p</a></li> <li><a href="/wiki/Pretty_Good_Privacy" title="Pretty Good Privacy">PGP</a></li> <li><a href="/wiki/Sylpheed" title="Sylpheed">Sylpheed</a></li> <li><a href="/wiki/Mozilla_Thunderbird" title="Mozilla Thunderbird">Thunderbird</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Secure_communication" title="Secure communication">Secure<br />communication</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Off-the-Record_Messaging" class="mw-redirect" title="Off-the-Record Messaging">OTR</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Adium" title="Adium">Adium</a></li> <li><a href="/wiki/BitlBee" title="BitlBee">BitlBee</a></li> <li><a href="/wiki/Centericq" title="Centericq">Centericq</a></li> <li><a href="/wiki/ChatSecure" title="ChatSecure">ChatSecure</a></li> <li><a href="/wiki/Climm" title="Climm">climm</a></li> <li><a href="/wiki/Jitsi" title="Jitsi">Jitsi</a></li> <li><a href="/wiki/Kopete" title="Kopete">Kopete</a></li> <li><a href="/wiki/Profanity_(instant_messaging_client)" title="Profanity (instant messaging client)">Profanity</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Secure_Shell" title="Secure Shell">SSH</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Dropbear_(software)" title="Dropbear (software)">Dropbear</a></li> <li><a href="/wiki/Lsh" title="Lsh">lsh</a></li> <li><a href="/wiki/OpenSSH" title="OpenSSH">OpenSSH</a></li> <li><a href="/wiki/PuTTY" title="PuTTY">PuTTY</a></li> <li><a href="/wiki/SecureCRT" title="SecureCRT">SecureCRT</a></li> <li><a href="/wiki/WinSCP" title="WinSCP">WinSCP</a></li> <li><a href="/wiki/WolfSSH" title="WolfSSH">wolfSSH</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Transport_Layer_Security" title="Transport Layer Security">TLS & SSL</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/BBM_Enterprise" title="BBM Enterprise">BBM Enterprise</a></li> <li><a href="/wiki/Bouncy_Castle_(cryptography)" title="Bouncy Castle (cryptography)">Bouncy Castle</a></li> <li><a href="/wiki/OpenSSL#BoringSSL" title="OpenSSL">BoringSSL</a></li> <li><a href="/wiki/Botan_(programming_library)" title="Botan (programming library)">Botan</a></li> <li><a href="/wiki/Cryptlib" title="Cryptlib">cryptlib</a></li> <li><a href="/wiki/GnuTLS" title="GnuTLS">GnuTLS</a></li> <li><a href="/wiki/Java_Secure_Socket_Extension" title="Java Secure Socket Extension">JSSE</a></li> <li><a href="/wiki/LibreSSL" title="LibreSSL">LibreSSL</a></li> <li><a href="/wiki/MatrixSSL" title="MatrixSSL">MatrixSSL</a></li> <li><a href="/wiki/Network_Security_Services" title="Network Security Services">NSS</a></li> <li><a href="/wiki/OpenSSL" title="OpenSSL">OpenSSL</a></li> <li><a href="/wiki/Mbed_TLS" title="Mbed TLS">mbed TLS</a></li> <li><a href="/wiki/BSAFE" title="BSAFE">BSAFE</a></li> <li><a href="/wiki/Security_Support_Provider_Interface" title="Security Support Provider Interface">SChannel</a></li> <li><a href="/wiki/SSLeay" title="SSLeay">SSLeay</a></li> <li><a href="/wiki/Stunnel" title="Stunnel">stunnel</a></li> <li><a href="/wiki/TeamNote" title="TeamNote">TeamNote</a></li> <li><a href="/wiki/WolfSSL" title="WolfSSL">wolfSSL</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Virtual_private_network" title="Virtual private network">VPN</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Check_Point_VPN-1" class="mw-redirect" title="Check Point VPN-1">Check Point VPN-1</a></li> <li><a href="/wiki/LogMeIn_Hamachi" title="LogMeIn Hamachi">Hamachi</a></li> <li><a href="/wiki/Openswan" title="Openswan">Openswan</a></li> <li><a href="/wiki/OpenVPN" title="OpenVPN">OpenVPN</a></li> <li><a href="/wiki/SoftEther_VPN" title="SoftEther VPN">SoftEther VPN</a></li> <li><a href="/wiki/StrongSwan" title="StrongSwan">strongSwan</a></li> <li><a href="/wiki/Tinc_(protocol)" title="Tinc (protocol)">Tinc</a></li> <li><a href="/wiki/WireGuard" title="WireGuard">WireGuard</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/ZRTP" title="ZRTP">ZRTP</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Jitsi" title="Jitsi">Jitsi</a></li> <li><a href="/wiki/Linphone" title="Linphone">Linphone</a></li> <li><a href="/wiki/Jami_(software)" title="Jami (software)">Jami</a></li> <li><a href="/wiki/Zfone" title="Zfone">Zfone</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Peer-to-peer" title="Peer-to-peer">P2P</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bitmessage" title="Bitmessage">Bitmessage</a></li> <li><a class="mw-selflink selflink">Briar</a></li> <li><a href="/wiki/RetroShare" class="mw-redirect" title="RetroShare">RetroShare</a></li> <li><a href="/wiki/Tox_(protocol)" title="Tox (protocol)">Tox</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Double_Ratchet_Algorithm" title="Double Ratchet Algorithm">DRA</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Matrix_(protocol)" title="Matrix (protocol)">Matrix</a></li> <li><a href="/wiki/OMEMO" title="OMEMO">OMEMO</a> <ul><li><a href="/wiki/Cryptocat" title="Cryptocat">Cryptocat</a></li> <li><a href="/wiki/ChatSecure" title="ChatSecure">ChatSecure</a></li></ul></li> <li><a href="/wiki/Wire_Swiss" title="Wire Swiss">Proteus</a></li> <li><a href="/wiki/Session_(software)" title="Session (software)">Session</a></li> <li><a href="/wiki/Signal_Protocol" title="Signal Protocol">Signal Protocol</a> <ul><li><a href="/wiki/Facebook_Messenger" class="mw-redirect" title="Facebook Messenger">Facebook Messenger</a></li> <li><a href="/wiki/Google_Allo" title="Google Allo">Google Allo</a></li> <li><a href="/wiki/Google_Messages" title="Google Messages">Google Messages</a></li> <li><a href="/wiki/Signal_(messaging_app)" class="mw-redirect" title="Signal (messaging app)">Signal</a></li> <li><a href="/wiki/TextSecure" title="TextSecure">TextSecure</a></li> <li><a href="/wiki/WhatsApp" title="WhatsApp">WhatsApp</a></li></ul></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Disk_encryption" title="Disk encryption">Disk encryption</a><br /><span style="font-weight:normal">(<a href="/wiki/Comparison_of_disk_encryption_software" title="Comparison of disk encryption software">Comparison</a>)</span></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/BestCrypt" title="BestCrypt">BestCrypt</a></li> <li><a href="/wiki/BitLocker" title="BitLocker">BitLocker</a></li> <li><a href="/wiki/CrossCrypt" title="CrossCrypt">CrossCrypt</a></li> <li><a href="/wiki/Cryptoloop" title="Cryptoloop">Cryptoloop</a></li> <li><a href="/wiki/Dm-crypt" title="Dm-crypt">dm-crypt</a></li> <li><a href="/wiki/DriveSentry" title="DriveSentry">DriveSentry</a></li> <li><a href="/wiki/E4M" title="E4M">E4M</a></li> <li><a href="/wiki/ECryptfs" title="ECryptfs">eCryptfs</a></li> <li><a href="/wiki/FileVault" title="FileVault">FileVault</a></li> <li><a href="/wiki/FreeOTFE" title="FreeOTFE">FreeOTFE</a></li> <li><a href="/wiki/GBDE" title="GBDE">GBDE</a></li> <li><a href="/wiki/Geli_(software)" title="Geli (software)">geli</a></li> <li><a href="/wiki/Linux_Unified_Key_Setup" title="Linux Unified Key Setup">LUKS</a></li> <li><a href="/wiki/PGPDisk" title="PGPDisk">PGPDisk</a></li> <li><a href="/wiki/Private_Disk" title="Private Disk">Private Disk</a></li> <li><a href="/wiki/Scramdisk" title="Scramdisk">Scramdisk</a></li> <li><a href="/wiki/Sentry_2020" title="Sentry 2020">Sentry 2020</a></li> <li><a href="/wiki/TrueCrypt" title="TrueCrypt">TrueCrypt</a> <ul><li><a href="/wiki/TrueCrypt_version_history" title="TrueCrypt version history">History</a></li></ul></li> <li><a href="/wiki/VeraCrypt" title="VeraCrypt">VeraCrypt</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Anonymity#Anonymity_on_the_Internet" title="Anonymity">Anonymity</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/GNUnet#File_sharing" title="GNUnet">GNUnet</a></li> <li><a href="/wiki/I2P" title="I2P">I2P</a></li> <li><a href="/wiki/Java_Anon_Proxy" title="Java Anon Proxy">Java Anon Proxy</a></li> <li><a href="/wiki/Tor_(network)" title="Tor (network)">Tor</a></li> <li><a href="/wiki/Vidalia_(software)" title="Vidalia (software)">Vidalia</a></li> <li><a href="/wiki/RetroShare" class="mw-redirect" title="RetroShare">RetroShare</a></li> <li><a href="/wiki/Ricochet_(software)" title="Ricochet (software)">Ricochet</a></li> <li><a href="/wiki/Wickr" title="Wickr">Wickr</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/File_system" title="File system">File systems</a> <span style="font-weight:normal">(<a href="/wiki/List_of_cryptographic_file_systems" title="List of cryptographic file systems">List</a>)</span></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/EncFS" title="EncFS">EncFS</a></li> <li><a href="/wiki/Encrypting_File_System" title="Encrypting File System">EFS</a></li> <li><a href="/wiki/ECryptfs" title="ECryptfs">eCryptfs</a></li> <li><a href="/wiki/Linux_Unified_Key_Setup" title="Linux Unified Key Setup">LUKS</a></li> <li><a href="/w/index.php?title=PEFS&action=edit&redlink=1" class="new" title="PEFS (page does not exist)">PEFS</a></li> <li><a href="/wiki/Rubberhose_(file_system)" class="mw-redirect" title="Rubberhose (file system)">Rubberhose</a></li> <li><a href="/wiki/StegFS" title="StegFS">StegFS</a></li> <li><a href="/wiki/Tahoe-LAFS" title="Tahoe-LAFS">Tahoe-LAFS</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Security-focused_operating_system" title="Security-focused operating system">Security-focused<br />operating system</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Tails_(operating_system)" title="Tails (operating system)">Tails</a></li> <li><a href="/wiki/Qubes" class="mw-redirect" title="Qubes">Qubes</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Service providers</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Freenet" class="mw-redirect" title="Freenet">Freenet</a></li> <li><a href="/wiki/Tresorit" title="Tresorit">Tresorit</a></li> <li><a href="/wiki/Wuala" title="Wuala">Wuala</a></li> <li><a href="/wiki/NordLocker" title="NordLocker">NordLocker</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Educational</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/CrypTool" title="CrypTool">CrypTool</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Anti%E2%80%93computer_forensics" title="Anti–computer forensics">Anti–computer forensics</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/USBKill" title="USBKill">USBKill</a></li> <li><a href="/wiki/BusKill" title="BusKill">BusKill</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related topics</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Outline_of_cryptography" title="Outline of cryptography">Outline of cryptography</a></li> <li><a href="/wiki/Timeline_of_cryptography" title="Timeline of cryptography">Timeline of cryptography</a></li> <li><a href="/wiki/Hash_function" title="Hash function">Hash functions</a> <ul><li><a href="/wiki/Cryptographic_hash_function" title="Cryptographic hash function">Cryptographic hash function</a></li> <li><a href="/wiki/List_of_hash_functions" title="List of hash functions">List of hash functions</a></li></ul></li> <li><a href="/wiki/Homomorphic_encryption" title="Homomorphic encryption">Homomorphic encryption</a></li> <li><a href="/wiki/End-to-end_encryption" title="End-to-end encryption">End-to-end encryption</a></li> <li><a href="/wiki/S/MIME" title="S/MIME">S/MIME</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div> <ul><li><span class="noviewer" typeof="mw:File"><span title="Category"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/31px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <a href="/wiki/Category:Cryptographic_software" 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