OTR protocol implementation¶

Blink SIP client for SIP2SIP edition is a multimedia SIP client that supports chat sessions using MSRP protocol (RFC4975 http://tools.ietf.org/html/rfc4975). On top of MSRP, Blink implements OTR protocol. 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 secrecy¶

If you lose control of your private keys, no previous conversation is compromised.