End to End Encryption Between Users

[zin1x]

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

[kegsay]

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 element-hq/element-web#19705 which has the failure mode you describe. What element web version are you running?

[forever8361]

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