> How do they manage to make the same messages appear on multiple devices?
For a long time, they didn’t.
I don’t know for sure, but I expect it involves keys that multiple devices share. Any “linked” device would be able to download the encrypted copy and decrypt the message that way. Once any device has done that, it can send a copy to any other devices using the unique keys it knows for that device.
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> Signal stores all your messages and media as well, the difference is they encrypt it on their servers.
What evidence do you have to support this claim?
The last time I looked into this, messages and media were only stored encrypted on servers until they were retrieved or expired.
After that, the local device is where things are stored.
@MacNCheezus
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> How do they manage to make the same messages appear on multiple devices?
For a long time, they didn’t.
I don’t know for sure, but I expect it involves keys that multiple devices share. Any “linked” device would be able to download the encrypted copy and decrypt the message that way. Once any device has done that, it can send a copy to any other devices using the unique keys it knows for that device.
This link describes independent queues for devices: https://support.signal.org/hc/en-us/articles/5532268300186-Disappearing-Messages-with-a-Linked-Device
@MacNCheezus
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If you connect to Discord via VPN they will ask for your phone number haha