firmware-security
2 posts tagged firmware-security.
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Below the OS: The Pre-Boot Trust Chain Where Secure Boot Inherits Its Trust From
Walk the eleven rungs from CPU reset to winload.efi -- Intel Boot Guard, AMD PSB, CSME, the PSP, KB5025885, and why the April 2023 MSI OEM-key leak is structurally permanent.
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Pluton: A TPM On Silicon Microsoft Can Patch
How Microsoft moved the TPM onto the SoC die, ran it on Rust firmware, and patched it through Windows Update -- and what that cost in trust centralisation.