The new IM standard

The Extensible Messaging and Presence Protocol (XMPP)
XMPP (RFC 3923) is created by the Jabber open-source community in 1999, not so new after all :)
It keep on evolving until now … it’s quite matured, if isn’t about Google Talk … I’ve never heard of it.

I’ll briefly describe it, XMPP uses XML as a standard format to send message between nodes, other generic functions such as providing personal address book, sender/receiver identification … etc.

We all knew that when XML came to place, cross-IM communication will become possible, and that’s what makes it so powerful.

Reference:

  1. XMPP official site
  2. RFC 3920: Extensible Messaging and Presence Protocol (XMPP): Core
  3. RFC 3921: Extensible Messaging and Presence Protocol (XMPP): Instant Messaging and Presence
  4. RFC 3922: Mapping the Extensible Messaging and Presence Protocol (XMPP) to Common Presence and Instant Messaging (CPIM)
  5. RFC 3923: End-to-End Signing and Object Encryption for the Extensible Messaging and Presence Protocol (XMPP)

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