What is Root of trust?
The component unconditionally trusted as the starting point of security checks, such as immutable ROM boot code and a public key inside the chip.
Field: Hardware Security
Root of trust in the explanations
So the root of trust is boot code in mask ROM, written at manufacture and unchangeable afterward, together with the public key used to verify signatures (often stored as a hash in eFuses to save space).
What is the most suitable thing placed inside the chip as t…
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Related terms
Secure boot Anti-rollback protection Cold boot attack Constant-time implementation Counterfeit chip eFuse Fault injection attack Hardware Trojan Kernel page-table isolation (KPTI) Measured boot