Fixing newly discovered side channel will likely take a major toll on performance.
  • @SpedwellEnglish
    6•9 months ago

    I don’t believe that explanation is more probable. If the NSA had the power to compell Apple to place a backdoor in their chip, it would probably be a proper backdoor. It wouldn’t be a side channel in the cache that is exploitable only in specific conditions.

    The exploit page mentions that the Intel DMP is robust because it is more selective. So this is likely just a simple design error of making the system a little too trigger-happy.

    • @TechNerdWizard42English
      2•9 months ago

      They do have the power and they do compel US companies to do exactly this. When discovered publicly they usually limit it to the first level of the “vulnerability” until more is discovered later.

      It is not conjecture, there is leaked documents that prove it. And anyone who works in semiconductor design (cough cough) is very much aware.