This repository was archived by the owner on Apr 26, 2024. It is now read-only.
This repository was archived by the owner on Apr 26, 2024. It is now read-only.
Synapse does not tell the clients when it runs out of OTKs #10484
Description
Following discussion in #10479 (and especially #10479 (comment)), I've checked the sync response when Synapse does not have OTK (one time key) anymore. So when the number of OTK is changing from N to 0.
Instead of receiving
"device_one_time_keys_count":{"signed_curve25519":0}The client receives
"device_one_time_keys_count":{}and so the client cannot distinguish "no change" and "no OTK left", and do not upload new OTK, which at the end breaks decryption of some messages.
Server version: 1.38.0 commit 12c92ee