End to End Encryption Between Users

matrixbot commented 3 weeks ago

This issue was originally created by @zin1x at https://github.com/matrix-org/dendrite/issues/2082.

Background information

Dendrite version or git SHA: 0.5.1+a47b12dc
Monolith or Polylith?: Monolith
SQLite3 or Postgres?: Postgres
Running in Docker?: No
go version: go version go1.17.3 linux/amd64

Description

End-to-end encryption of DM between 2 user does not work the moment user logs off

Steps to reproduce

User 1 invite User 2 to a chat
Conversation exchanges are encrypted
User 2 log off
User 2 log on
User 2 message User 1 in the previously established chat
on Element.io/Web - message is sent unencrypted to User 2
on Element App - message from User 2 is will never be unable to send to User 1

matrixbot commented 3 weeks ago

This comment was originally posted by @kegsay at https://github.com/matrix-org/dendrite/issues/2082#issuecomment-1016402999.

on Element.io/Web - message is sent unencrypted to User 2

I assume User 1 sent this - did they just login to a fresh element-web account or was this an existing account? It's entirely possible you're hitting https://github.com/vector-im/element-web/issues/19705 which has the failure mode you describe. What element web version are you running?

matrixbot commented 3 weeks ago

This comment was originally posted by @forever8361 at https://github.com/matrix-org/dendrite/issues/2082#issuecomment-1018338502.

You can debug with Andriod, the android phenomenon is that it cannot send information, it is the event lost in the dendrite server

element-hq / dendrite