Off-the-record messaging: Difference between revisions
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'''Off-the-record messaging''' or '''OTR''' is a system for providing | '''Off-the-record messaging''' or '''OTR''' is a system for providing cryptography|encryption for Instant messaging (Internet chat) applications such as MSN and QQ. | ||
It is an | OTR includes a mechanism for information security#source authentication|source authentication and information security#integrity|data integrity protection; during a conversation, both players are assured that the other party is who they think it is and that the messages are received unaltered. However, it does not use digital signatures verifiable by a third party. After a conversation, anyone can forge messages after a conversation to make them look like they came from you, but no-one can prove a recorded message was actually sent by you. The system also provides perfect forward secrecy; if you lose control of your private keys, no previous conversation is compromised. | ||
It is an open source application, distributed both as a library for developers and as a pre-built plugin for the multi-protocol instant messaging client Pidgin chat client|Pidgin. There is a [http://www.cypherpunks.ca/otr/ web site] with downloads and extensive documentation. | |||
Latest revision as of 07:34, 18 March 2024
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 Off-the-record messaging or OTR is a system for providing cryptography|encryption for Instant messaging (Internet chat) applications such as MSN and QQ. OTR includes a mechanism for information security#source authentication|source authentication and information security#integrity|data integrity protection; during a conversation, both players are assured that the other party is who they think it is and that the messages are received unaltered. However, it does not use digital signatures verifiable by a third party. After a conversation, anyone can forge messages after a conversation to make them look like they came from you, but no-one can prove a recorded message was actually sent by you. The system also provides perfect forward secrecy; if you lose control of your private keys, no previous conversation is compromised. It is an open source application, distributed both as a library for developers and as a pre-built plugin for the multi-protocol instant messaging client Pidgin chat client|Pidgin. There is a web site with downloads and extensive documentation. |
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