Core Root of Trust for Measurement (CRTM)

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Abbreviations / Acronyms / Synonyms:

CRTM

NIST SP 800-147, NISTIR 8320, NISTIR 8320A, NISTIR 8320B

Definitions:

The first piece of BIOS code that executes on the main processor during the boot process. On a system with a Trusted Platform Module the CRTM is implicitly trusted to bootstrap the process of building a measurement chain for subsequent attestation of other firmware and software that is executed on the computer system.
Sources:
NIST SP 800-147

Glossary Comments

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See NISTIR 7298 Rev. 3 for additional details.