I am looking for a way to backup my private key for the Signal messenger application. Nothing has worked so far, and I am curious whether anyone can confirm or deny that Titanium backup will save and restore the private key of a Signal install.
Does Titanium Backup backup the Signal private Key?
Question
Answer
Signal 4.17.0 introduced encrypted backups. This is the preferred migration path. Also the Titanium Backup route does not work in current releases.
Previous Post
I just tried this and it worked flawlessly.
After restoring Signal on your new Phone you should re-activated your connection by unregistering and re-registering to the Signal servers. As of now you can do this in the Signal Settings > Advanced tab by toggleing Signal messages to de-activate then re-activate [1]. In this Process you will have to re-verify your phone number and you'll have to reconnect your Signal-Desktop clients afterwards.
You won't loose your Private key or your Signal-Desktop messages though.
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