4 ms·
How? The cable is point to point. (Well ok there is branching but let's ignore that) So you know those two endpoints are talking. Not about what. And this is
by progbits 4y ago
How?
The cable is point to point. (Well ok there is branching but let's ignore that) So you know those two endpoints are talking. Not about what.
And this is trivial to bypass by always sending, regardless of whether there is data to send. Just fill the cable with dummy packets.
Unless you compromise the keys used on either end you learn absolutely nothing by watching the cable.
- amadeuspagel 4y agoHow does a packet get sent from one device to another unless everyone in between knows where it has to be sent?
- epgui 4y agoI don’t know what I’m talking about, but presumably the address on the envelope is not the final destination.
- hinkley 4y agoThat's true in TOR, but not true in IP packets. And then it took us three or four major iterations of HTTPS before we stopped revealing a bunch of metadata about the question you're asking the server. Also if you know what service I'm talking to, and you know anything about me, you can get some statistically relevant information from the traffic patterns. You might be able to tell if I'm using a chat application, or watching videos. And if I'm being surveilled by state actors, then the fact that I'm chatting might suggest what I'm getting up to.
- epgui 4y agoThanks for correcting me & for the info!
- kccqzy 4y agoThe Ethernet address isn't the final destination. The IP address is the final destination in practice. Of course you can also have proxies and port forwarding and whatnot but that's a whole different topic.