Difference between revisions of "OTR"

From XMPP WIKI
Jump to navigation Jump to search
m
m
Line 18: Line 18:
 
* [http://centerim.org/ CenterIM] (Unix-like)
 
* [http://centerim.org/ CenterIM] (Unix-like)
 
* [http://climm.org/ climm] (Unix-like)
 
* [http://climm.org/ climm] (Unix-like)
* [https://guardianproject.info/apps/gibber/ Gibberbot] (Android)
+
* [https://guardianproject.info/apps/chatsecure/ ChatSecure (formerly Gibberbot)] (Android, iPhone, Mac, Linux or PC)
* [http://jitsi.org/ Jitsi] (Cross-platform)
+
* [http://jitsi.org/ Jitsi(formerly SIP Communicator)] (Cross-platform)
 
* [http://mcabber.com/ MCabber] (Unix-like)
 
* [http://mcabber.com/ MCabber] (Unix-like)
 
* [http://phoenixviewer.com/ Phoenix Viewer], a Second Life client (Cross-platform)
 
* [http://phoenixviewer.com/ Phoenix Viewer], a Second Life client (Cross-platform)
 
* [http://psi-plus.com/ Psi+] (Cross-platform)
 
* [http://psi-plus.com/ Psi+] (Cross-platform)
 
* [http://vacuum-im.org/ Vacuum IM] (Cross-platform)
 
* [http://vacuum-im.org/ Vacuum IM] (Cross-platform)
 +
* [https://github.com/redsolution/xabber-android Xabber] (Android)
 +
* [http://yaxim.org/ yaxim] (Android)
  
 
=== Plugin ===
 
=== Plugin ===
Line 30: Line 32:
 
* [http://kopete.kde.org/ Kopete] (Unix-like) with [http://kopete-otr.follefuder.org/ Kopete Off-the-Record plugin]
 
* [http://kopete.kde.org/ Kopete] (Unix-like) with [http://kopete-otr.follefuder.org/ Kopete Off-the-Record plugin]
 
* [http://miranda-im.org/ Miranda IM] (Microsoft Windows) with [https://code.google.com/p/mirotr/ MirOTR - OTR for Miranda IM!]
 
* [http://miranda-im.org/ Miranda IM] (Microsoft Windows) with [https://code.google.com/p/mirotr/ MirOTR - OTR for Miranda IM!]
 +
* [http://miranda-ng.org/ Miranda NG] (Microsoft Windows) with [https://code.google.com/p/mirotr/ MirOTR - OTR for Miranda IM!]
 
* [http://pidgin.im/ Pidgin] (Cross-platform) with [http://www.cypherpunks.ca/otr/#downloads OTR plugin for Pidgin]
 
* [http://pidgin.im/ Pidgin] (Cross-platform) with [http://www.cypherpunks.ca/otr/#downloads OTR plugin for Pidgin]
 +
* [http://poez.io/ Poezio] with [http://poez.io/doc/plugins/otr.html pure-python-otr]
 
* [http://www.trillian.im/ Trillian] (Microsoft Windows) with [http://trillianotr.kittyfox.net/ Trillian OTR]
 
* [http://www.trillian.im/ Trillian] (Microsoft Windows) with [http://trillianotr.kittyfox.net/ Trillian OTR]
 
* [http://weechat.flashtux.org/ WeeChat] (Cross-platform) with [http://irssi-otr.tuxfamily.org/ weechat-otr]
 
* [http://weechat.flashtux.org/ WeeChat] (Cross-platform) with [http://irssi-otr.tuxfamily.org/ weechat-otr]

Revision as of 11:44, 19 January 2014

Off-the-Record Messaging, commonly referred to as OTR, is a cryptographic protocol that provides strong encryption for instant messaging conversations. OTR uses a combination of the AES symmetric-key algorithm, the Diffie–Hellman key exchange, and the SHA-1 hash function. In addition to authentication and encryption, OTR provides perfect forward secrecy and malleable encryption.

Strengths

OTR allows you to have private conversations over instant messaging by providing:

  • Encryption
    • No one else can read your instant messages.
  • Authentication
    • You are assured the correspondent is who you think it is.
  • Deniability
    • The messages you send do not have digital signatures that are checkable by a third party. Anyone can forge messages after a conversation to make them look like they came from you. However, during a conversation, your correspondent is assured the messages he sees are authentic and unmodified.
  • Perfect forward secrecy
    • If you lose control of your private keys, no previous conversation is compromised.

Client support

Native

Plugin

Work in Progress

External links