3 ms·

I wonder if someone tested this on Tor Browser, I'm curious if the attack can be implemented on that.

• Aachen 5y ago
  Of course it can, one doesn't need to test this. It's not as if any browser would allocate and burn the cpu at 100% for 30 seconds and then stop all javascript execution or css rendering or anything on the page. That's the kind of solutions you're looking at to fix this. This is like research to confirm the sky is blue. Good to know for sure but we're rather sure to begin with. If you want to try it, a power meter is a good thing to have anyhow, or someone could lend you one. Plug it in and load different websites a few times, then look how many joules you used. Not every site can be told apart with a limited measurement like this, especially on the lighter end of the spectrum, but if you want to know if Tor Browser mitigates this then you can confirm it this way.
  • Fnoord 5y ago
    What if background processes meddle with the measurement? Also, wasn't there some kind of WebRTC which allowed a remote website to get battery readings?