Indeed, UEFI can be used in secure or unsecured mode and what I have read ensures standards when the options are available.
I have read no where that the option MUST be offered and I know from experience how these things can go awry. Couple this with the fact that according to one article, Microsoft is referring to unsecured as custom mode and I become quite a bit more uncomfortable. Custom, in the personal computer commercial lexicon, has a way of always meaning more expensive.
Link me to facts showing my error, and I'll stand down as sincerely, gratefully, corrected.
And speaking of implementation, the HP article I linked seems to explain the architecture in a clear and unbiased fashion.
It raises a simple question.
Why can't this security layer be implemented in software and stored on the hard disk?
In fact, it could. It could be placed on a read only, encrypted partition that bootstraps itself with sufficient encrypted key and encrypted function process returns that it could not be spoofed and would force shutdown if compromised. Said partition could then be re-installed from an optical install disk if compromised, the system booted into a restricted mode to allow sanitation and the rootkit problem would be a thing of the past.
All of this could be accomplished by the same brainpower that thought up the firmware scheme. And this isn't science fiction, it's a known technology. I have personally worked on an industrial software stack with a site license costing between US$1 AND 2 million, and that license system was protected with similar means.
So, this is why I have formed a personal opinion that the sales pitch on this approach being the only way and being primarily for rootkits is Kool Aide.
As for mobile devices, sorry. Were they to implement this on desktops as I suggest and then on mobile platforms as they plan, saying, apologies, no disk, must lock firmware, then I would be OK with that. Plenty of people buy locked Androids knowing that the vendors simply wanted lock-in, and what's good for the goose is good for the gander.
These are just my opinions, though. And as I indicated, I am open to all factual rebuttal. Aren't we all?
