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Did you know that WhatsApp uses XMPP?

• vog 10y ago
  This is wrong. They started with XMPP, but switched to a proprietary protocol a long time ago: http://highscalability.com/blog/2014/2/26/the-whatsapp-architecture-facebook-bought-for-19-billion.html http://highscalability.com/blog/2014/2/26/the-whatsapp-archi... | The next few years were spent re-writing and modifying quite a few parts of ejabberd, including switching from XMPP to internally developed protocol, restructuring the code base and redesigning some core components, and making lots of important modifications to Erlang VM to optimize server performance.
  • Zash 10y ago
    I wasn't aware that they had switched entirely, only that they invented their own custom compression and (really bad) authentication and encryption methods.
    • lorenzhs 10y ago
      WhatsApp uses Signal protocol for encryption nowadays: https://whispersystems.org/blog/whatsapp-complete/ https://whispersystems.org/blog/whatsapp-complete/
    • sliken 10y ago
      Well if it's not XMPP compatible it's not really XMPP. Apparently they switched to signal based protocol for transport.