• Ulrich
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    17 days ago

    No they can’t.

    E: if someone wants to provide evidence to the contrary instead of just downvoting and moving on, please, go ahead.

        • I Cast Fist
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          016 days ago

          Packet data has headers that can identify where it’s coming from and where it’s going to. The contents of the packet can be securely encrypted, but destination is not. So long as you know which IPs Signal’s servers use (which is public information), it’s trivial to know when a device is sending/receiving messages with Signal.

          This is also why something like Tor manages to circumvent packet sniffing, it’s impossible to know the actual destination because that’s part of the encrypted payload that a different node will decrypt and forward.

          • Ulrich
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            16 days ago

            Packet data has headers that can identify where it’s coming from and where it’s going to

            Wouldn’t you have to have some sort of MITM to be able to inspect that traffic?

            This is also why something like Tor manages to circumvent packet sniffing

            TOR is what their already-existing tip tool uses.

              • Ulrich
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                016 days ago

                Does it matter? How would you get access to such information?

                • @papertowels@mander.xyz
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                  16 days ago

                  If the header isn’t encrypted it’d be easy to inspect, and thus easy to determine where it goes, which is why it matters.

                  Based on your questions, it sounds like you’re expecting the network traffic itself to be encrypted, as if there were a VPN. Does signal offer such a feature? My understanding is that the messages themselves are encrypted, but the traffic isn’t, but I could be wrong.

                  • Ulrich
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                    -116 days ago

                    If the header isn’t encrypted it’d be easy to inspect

                    Easy for whom? How are you getting access to the traffic info?