Off-the-Record (OTR) Messaging 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 secrecyIf you lose control of your private keys, no previous conversation is compromised.Off-the-Record Messaging

Windows Version (3.2.0)Win32 installer for pidgin 2.x

Windows Setup Guide: Setting up OTR on Windows


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see no evil, speak no evil, hear no evil