Difference between revisions of "OTR"

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=== Plugin ===
 
=== Plugin ===
* [http://pidgin.im/ Pidgin] (Cross-platform) with [http://www.cypherpunks.ca/otr/#downloads OTR plugin for Pidgin]
+
* [http://irssi.org/ irssi] (Cross-platform) with [http://irssi-otr.tuxfamily.org/ irssi-otr]
 
* [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://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://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://irssi.org/ irssi] (Cross-platform) with [http://irssi-otr.tuxfamily.org/ irssi-otr]
+
* [http://weechat.flashtux.org/ WeeChat] (Cross-platform) with [http://irssi-otr.tuxfamily.org/ weechat-otr]
 
* [http://www.xchat.org/ XChat] (Cross-platform) with [http://irssi-otr.tuxfamily.org/ xchat-otr]
 
* [http://www.xchat.org/ XChat] (Cross-platform) with [http://irssi-otr.tuxfamily.org/ xchat-otr]
* [http://weechat.flashtux.org/ WeeChat] (Cross-platform) with [http://irssi-otr.tuxfamily.org/ weechat-otr]
 
  
 
== External links ==
 
== External links ==
 
* [http://www.cypherpunks.ca/otr/ Homepage]
 
* [http://www.cypherpunks.ca/otr/ Homepage]
 
* [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 15:10, 31 August 2011

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

External links