OTR

Version 1 (Adrian Georgescu, 09/13/2013 01:53 am)

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h1. OTR protocol implementation
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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:
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h3. Encryption
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No one else can read your instant messages.
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h3. Authentication
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You are assured the correspondent is who you think it is.
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h3. Deniability
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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.
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h3. Perfect forward secrecy
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If you lose control of your private keys, no previous conversation is compromised.