Signal protocol comes to XMPP/Jabber

https://xmpp.org/extensions/xep-0384.html

by SamWhited • 10 years ago

19 6 10 years ago

xmpp.org

Zash• 10 years ago

Well, to be pedantic, it got assigned a XEP number.

tfar• 10 years ago

Well, to be pendantic, it's not the Signal protocol. It's a Signal-like protocol, Olm, brought to XMPP/Jabber.

SamWhited2• 10 years ago

Well, to be pedantic, it's the same (crypto) protocol as the Signal protocol just with the IV changed.

niftich• 10 years ago

This is the Olm protocol by Matrix, which uses the Perrin-Marlinspike Double Ratchet described at [1], and makes some similar cryptographic decisions to the Signal Protocol, but has a different wire format. As complete protocols, Olm and the Signal Protocol started off close but have since diverged in a number and magnitude of ways that I lack the expertise to comment on. Nonetheless, here's the same thing directly out of both Arathorn and Moxie's mouths, devs of Matrix and Signal respectively [2].

Despite valiant efforts on many people's part to lessen the conflation and confusion of protocols, this happens a lot still, but we can all try to do our part to be as accurate as we can.

[1] https://github.com/trevp/double_ratchet/wiki [2] https://news.ycombinator.com/item?id=11725652

rakutans• 10 years ago

And now we wait for the first client to actually implement the XEP

SamWhited2• 10 years ago

Gajim and Conversations have already implemented it.

Signal protocol comes to XMPP/Jabber

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