I think XMPP.

  • jhghjb (he/they)
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    03 years ago

    xmpp encrypts everything, metadata included

    it’s not easy and makes the protocol really hard to implement but it is possible

    • poVoq
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      3 years ago

      Sadly that isn’t the case. A lot of metadata on XMPP is also exchanged only TLS transport encrypted and is thus available on the server in clear text. The main difference to Matrix is that it generates and exchanges much less metadata and most XMPP servers are configured to delete all the metadata after a relatively short period of time.

      • jhghjb (he/they)
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        23 years ago

        🤔 that does seem to be the case, maybe i was thinking of signal (it truly encrypts all metadata)