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ietf-wg-mimi / mimi-arch

An architecture for More Instant Messaging Interoperability
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Not all primitives required by MIMI necessarily happen in a room #6

Closed rohan-wire closed 1 year ago

rohan-wire commented 1 year ago

claiming KeyPackages in MLS (similar to prekeys in DoubleRatchet) does not always happen inside a room. It is neither a "state event" or a "message event".

bifurcation commented 1 year ago

We discussed in email the idea that all inter-provider traffic, including KP fetches, has to transit the hub. That seems at least pretty close to KP fetches happening in the context of a room, since the notion of a "hub" is only meaningful in the context of a room.

In other words, in the context of MIMI, you're only ever going to fetch a KP in order to add someone to a room.

rohan-wire commented 1 year ago

I agree that Consent and KeyPackage needs to transit the Hub. I think we need to be careful that this will eventually be about a room, but the room may never be created if the relevant consent and keys are not obtained.