Computer Security Resource Center

Computer Security Resource Center

Computer Security
Resource Center

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Core Root of Trust for Measurement (CRTM)

Abbreviation(s) and Synonym(s): Definition(s):

  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.
Source(s):
NIST SP 800-147