Re: [Mimi] Review of draft-ralston-mimi-protocol-02

[Rohan Mahy <[e-mail]>]

Hi Eric,
Sorry for the late reply. This message was stuck in my Outbox.

Questions about your hash proposal inline:

On Wed, Mar 20, 2024 at 3:56 PM Eric Rescorla <[e-mail]> wrote:

>
> On Wed, Mar 20, 2024 at 3:34 PM Rohan Mahy <[e-mail]> wrote:
>
>
>> If you get a message adding 3 new clients belonging to Cathy, how long do
>> you wait for the MIMI message which adds her to the participant list so you
>> can compare the hash you received?
>>
>
> You don't compare the hash. The purpose of the hash is merely to ensure
> that everyone has the same MIMI state, but the MIMI layer is responsible
> for looking into the MIMI state and the MLS layer is responsible for
> looking into the MLS state.
>

The MIMI protocol is among providers. How would clients Alice, Bob, and
Cathy get the hash of a MIMI message sent between Alice's provider and
Bob's provider to add Bob as an authorized participant of a room in order
(to incorporate it into the MLS state or corroborate it)? How would that
hash be meaningful to clients Alice, Bob, and Cathy?

Thanks,
-rohan