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A comment on AMD PSB Vendor Locks EPYC CPUs for Enhanced Security at a Cost. Parent comment

Re:AMD PSB Vendor Locks EPYC CPUs for Enhanced Security at a... by mcosta on Wednesday September 09, 2020 @08:16AM (#24420170)
Can these CPUs sign with its key from software? If they can, then that system can not sign with the original key, and it is trivial to catch it.
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Re:AMD PSB Vendor Locks EPYC CPUs for Enhanced Security at a... by caf on Wednesday September 09, 2020 @08:31PM (#24427630)
The key in question is a public key, it's not a secret. The CPU uses it to verify the BIOS, not the other way around.
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