这是非正式记录(OTR)消息发挥作用的地方。 OTR 由 Ian Goldberg,Chris Alexander和Nikita Borisov 创建,提供了四大主题来确保对话的私密性。
– 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.
Pidgin 和 OTR 都与 Microsoft Windows 以及 GNU/Linux 兼容。 另外一款与 Microsoft Windows 兼容且支持 OTR 的多协议即时通讯程序是 Miranda IM。如果是 Mac OS,我们推荐使用 Adium,一个支持 OTR 插件的多协议即时通讯程序。