3 ms·
I don’t understand how you can defend against low voltage attacks like this.
by klysm 3y ago
I don’t understand how you can defend against low voltage attacks like this.
- jsheard 3y agoThe Xbox 360 was broken by voltage glitching, and Microsoft successfully prevented it from happening again with the Xbox One: https://www.youtube.com/watch?v=U7VwtOrwceo https://www.youtube.com/watch?v=U7VwtOrwceo In short, there's now a hardware watchdog which reboots the system if anything weird happens to the clocks/temps/voltages, and they carefully structured their boot ROM (the only code they can't patch later) to ensure that even if you somehow manage to sneak one glitch past the watchdog, no single branch condition being inverted will lead to a compromised state.
- 14 3y agoThat is really cool. I personally installed the reset glitch hack on several Xbox 360. Immediately thought about that when seeing this article on the Tesla
- weebull 3y agoMake sure all security critical state is initialised to known values at reset, then have very tight tolerances on your power watchdog to initiate reset. However, that doesn't make for a stable system when powered from batteries.