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ATsch
2114 days ago
Smaller capacitors will keep their charge less long, which makes this more difficult, but I understand that there are no fundamental mitigations.
2 comments
jleahy
2114 days ago
The fundamental mitigation is full memory encryption using a randomly generated key that changes each time the CPU boots. That exists for some CPUs.
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ATsch
2114 days ago
Well, that's not part of the ddr3 or ddr4 spec :)
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Spivak
2114 days ago
Where do you store the key?
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danielheath
2114 days ago
CPU registers - much harder to pull off and reattach elsewhere.
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Avamander
2114 days ago
There's (T)SME.
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