search

element-hq / element-meta

Shared/meta documentation and project artefacts for Element clients
70 stars 12 forks source link

E2EE should recover rapidly from HS outages #2153

Closed ara4n closed 8 months ago

ara4n commented 11 months ago

Your use case

If Bob's HS is down, Alice won't be able to set up Olm sessions to Bob. As a result, her messages to Bob will unavoidably be undecryptable.

Alice's HS could track when Bob's server returns however, and send a push notif to Alice's client when that happens (assuming Alice's client supports push) to encourage Alice to flush her olm/megolm queue and so share the missing key to Bob.

At a minimum Alice's client should track the pending olm sessions that she needs to setup, and keep retrying with a sensible retry schedule in the bg.

Have you considered any alternatives?

No response

Additional context

No response

kegsay commented 8 months ago

MSC4081 proposes a way to fix this.

richvdh commented 8 months ago

closing in favour of #2154

richvdh commented 8 months ago

Duplicate of #2154