Cross signing keys aren't shared between sessions

[alistair23]

Background information

• Dendrite version or git SHA: 073972646fd38b6987c2b62f8db5500c2f87d2d0
• Monolith or Polylith?: Monolith
• SQLite3 or Postgres?: Postgres
• Running in Docker?: No
• go version:
• Client used (if applicable): Element Web and Desktop

Description

• What is the problem: Cross signing keys aren't shared between sessions
• Who is affected: Server users
• How is this bug manifesting:

I have two Element sessions. Each one says that it's verified and that the other session doesn't support encryption in the "Security and Privacy" section.

Keys are not syned between the two sessions, I can only decrypt my or others messages from one session

• When did this first appear:

When updating from 0.6.5 to 0.8.1

I have tried resetting my cross signing keys, but that hasn't helped

Steps to reproduce

• Clear all cross signing keys
• Try to chat in an encrypted room from two Element sessions

[alistair23]

Now I don't seem to be able to verify any sessions. I have just a single Element account logged in, and it sees itself as unverified

[alistair23]

It now seems like resetting keys isn't working. So I have reset them, but the people I'm talking to aren't being notified so they are still using old keys

[neilalexander]

A bunch of fixes for cross-signing went in with #2368, can you retry on the latest main commit?

[alistair23]

After resetting everything again and signing out of everything it seems to be working now on the latest main commit

[alistair23]

Ah nope, re-opening this.

So with latest main I have one Element sessions that works (before that nothing worked) but it's still unable to sync between my other sessions. My working session reports my other sessions as encryption not supported

[alistair23]

Back to unable to decrypted received messages

[alistair23]

Seems to be fixed in 0.8.2