Software:Off-the-Record Messaging protocol
| Developer(s) | OTR Development Team |
|---|---|
| Stable release | 4.1.1
/ 9 March 2016 |
| Written in | C |
| Operating system | Cross-platform |
| Type | Software Library |
| License | LGPL v2.1+[1] |
| Website | otr |

These clients support Off-the-Record Messaging out of the box or via plug-ins.
- Adium (OS X)
- Another.IM
- BitlBee (cross-platform), since 3.0 (optional at compile time)[2]
- Blink SIP client (OS X)
- CenterIM (Unix-like), since 4.22.2
- ChatSecure (iOS)
- CoyIM
- HexChat, for *nix versions, with a third-party plugin[3]
- HexChat, with a third-party plugin[4]
- Jitsi (cross-platform)
- Kopete (Unix-like)[5][6]
- Miranda NG (Microsoft Windows), with a third-party plugin[7]
- monocles chat, XMPP client supports OTR since 2022
- Mozilla Thunderbird, since 68
- Pidgin (cross-platform), with a plugin available from the OTR homepage[8]
- Profanity, since 0.4.1
- Psi (cross-platform)[9]
- Spark
- Zom Mobile Messenger (Android)
- Tkabber (cross-platform), since version 1.1[10]
- WeeChat, with a third-party plugin[11]
- climm (Unix-like), since (mICQ) 0.5.4
- irssi, since 1.2.0[12]
See also
References
- ↑ "Off-the-Record Messaging". https://otr.cypherpunks.ca/index.php#faqs.
- ↑ "BitlBee Wiki". Wiki.bitlbee.org. 25 January 2014. http://wiki.bitlbee.org/bitlbee-otr.
- ↑ "TingPing/hexchat-otr" (in en). https://github.com/TingPing/hexchat-otr.
- ↑ "Off the record plugin for HexChat". 2 December 2021. https://github.com/TingPing/hexchat-otr.
- ↑ "kopete-otr in KDE for 4.1". http://kopete-otr.follefuder.org/news.html.
- ↑ "kopete-otr review request". http://lists.kde.org/?t=120397998900007&r=1&w=2.
- ↑ "Miranda OTR Plugin". https://code.google.com/p/mirotr/.
- ↑ "OTR plugin for Pidgin". https://otr.cypherpunks.ca/#downloads.
- ↑ "OTR Plugin". Github.com. https://github.com/psi-im/plugins/tree/master/generic/otrplugin.
- ↑ "Tkabber OTR Plugin". https://svn.xmpp.ru/repos/tkabber/trunk/tkabber-plugins/otr/.
- ↑ "OTR plugin for WeeChat". January 2019. https://github.com/mmb/weechat-otr.
- ↑ "Irssi Changelog - 1.2.0". https://irssi.org/NEWS/#news-v1-2-0.
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<ref> tag with name "no-evidence" defined in <references> is not used in prior text.Further reading
- Joseph Bonneau; Andrew Morrison (21 March 2006). Finite-State Security Analysis of OTR Version 2. http://www.jbonneau.com/doc/BM06-OTR_v2_analysis.pdf. Retrieved 2013-09-05.
- Mario Di Raimondo; Rosario Gennaro; Hugo Krawczyk (2005). "Secure Off-the-Record Messaging". Association for Computing Machinery. http://www.dmi.unict.it/diraimondo/web/wp-content/uploads/papers/otr.pdf. Retrieved 2013-08-27.
External links
- Official website
- Protocol specification
- Implementations of XEP-0364 list of messengers and libraries that supports the OTR.
- XEP-0364: Current Off-the-Record Messaging Usage
- Off-the-Record Messaging: Useful Security and Privacy for IM , talk by Ian Goldberg at the University of Waterloo (video)
- 'Off-the-Record' Instant Messaging Tutorial (encryption, authentication, deniability, ..) on YouTube
- An odyssey of encryption in XMPP an overview of the current support of the OTR in XMPP clients
