Re:Intel Microcode Decryptor
by Enginerrrd on Tuesday July 19, 2022 @09:19AM
(#32151028)
Basically none these days. But therein lies the problem. The actors can't be trusted. In part because the state-actors in which they reside can't be trusted and they can (and do) issue gag-orders to shove backdoors down their throat.
But the problem with backdoors has always been that other people will likely eventually figure out how to use them too.
If you can't audit the microcode, you have a massive gaping security problem.
Re:Intel Microcode Decryptor
by formerly_proven on Tuesday July 19, 2022 @09:41AM
(#32151268)
Which ARM cores have loadable microcode to begin with?
Re:Intel Microcode Decryptor
by classichasclass on Tuesday July 19, 2022 @05:17PM
(#32158102)
POWER9 CPUs are in retail hardware and are being used today (including several in this house), so I'd say they qualify.
It may be a serious question, but I don't see how it relates to the part you quoted. It still is a dumb idea, regardless of the answer to your question.
Do the Raptor systems (POWER-based) fit here?
Re:Intel Microcode Decryptor
by cogburnd02 on Tuesday July 19, 2022 @11:29AM
(#32152956)
If it can't be done on a MC68000 (or thousands in parallel), then does it really need to be done?
Serious question: which consumer CPUs have unencrypted microcode? AMD processors have had theirs encrypted for a decade, Intel for even longer, and nothing I've seen indicates that any ARM models have unencrypted microcode updates floating about.