Posted Jul 4, 2012 17:05 UTC (Wed) by Richard_J_Neill (subscriber, #23093)
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>> Who gets to decide?
> Anyone with a key in KEK, so typically Microsoft and the system vendor.
Wouldn't that be monumentally anticompetitive? If (say) Ubuntu were to get a large installed base, and then somehow their private key became compromised, then for MS to revoke the key would prevent the existing (non-updated) Ubuntu installations from booting. If Ubuntu made it clear that they didn't want the revocation to occur (i.e. that they would prefer 10 million systems to keep booting, even without the negligible protection conferred by the key), isn't that grounds for a monumental lawsuit?
'You have to divulge your private key' meme
Posted Jul 4, 2012 17:43 UTC (Wed) by mjg59 (subscriber, #23239)
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If one OS signed with the Microsoft key is compromised then they're all compromised - you'd just use the compromised OS to attack any of the others. So if Ubuntu ship a bootloader that allows arbitrary code to be executed, it's not just 10 million Ubuntu machines that are affected. You'd have to ask a lawyer to get a good idea about whether it's anticompetitive, though.