Difference between revisions of "OTR"

From XMPP WIKI
Jump to navigation Jump to search
m
m
Line 22: Line 22:
 
* [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://vacuum-im.org/ Vacuum IM] (Cross-platform)
 
* [http://vacuum-im.org/ Vacuum IM] (Cross-platform)
  
Line 30: Line 31:
 
* [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://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://psi-plus.com/ Psi+] (Cross-platform) with [http://public.beuth-hochschule.de/~s30935/ OTR Plugin for Psi+]
 
 
* [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]
Line 40: Line 40:
 
== External links ==
 
== External links ==
 
* [http://www.cypherpunks.ca/otr/ Homepage]
 
* [http://www.cypherpunks.ca/otr/ Homepage]
 +
* [https://otr.cypherpunks.ca/Protocol-v3-4.0.0.html Off-the-Record Messaging Protocol version 3]
 
* [http://www.cypherpunks.ca/otr/Protocol-v2-3.1.0.html Off-the-Record Messaging Protocol version 2]
 
* [http://www.cypherpunks.ca/otr/Protocol-v2-3.1.0.html Off-the-Record Messaging Protocol version 2]

Revision as of 10:01, 3 November 2013

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