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lima
on Aug 12, 2021
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Fault Injection Attacks Against AMD's Secure Encry...
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It is an interesting attack but is the above goal ever achievable? To protect against adversaries from the inside.
Achievable in any circumstances? No. Within a well-defined threat model, definitely.
DSingularity
on Aug 12, 2021
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Do you mean “adversaries from the inside” could be more detailed to create reasonable limitations on access and resources as imposed by external systems (eg cameras, guards, searches) securing the machines?
swiley
on Aug 12, 2021
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Except that the threat model the crippled SEV defends against is the same one the SU command does, making it irrelevant.
new_realist
on Aug 13, 2021
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No. SEV is supposed to protect from root.
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Achievable in any circumstances? No. Within a well-defined threat model, definitely.