User:Mmlange/Sandbox/Platform Configuration Register

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The Platform Configuration Register stores cryptographic hashes.

Registers 0-7 are reserved for TPM use. Registers 8-15 are available for OS and application use.^[1]

According to the TPM specification, the PCRs must hold 160-bit values.

TPM integrity metrics include^[2]:

PCR[0] CRTM, BIOS and Platform Extensions
PCR[1] Platform Configuration.
PCR[2] Option ROM Code
PCR[3] Option ROM Configuration and Data
PCR[4] IPL Code (usually the MBR)
PCR[5] IPL Code Configuration and Data (for use by the IPL code)
PCR[6] State Transition and Wake Events
PCR[7] Computer Manufacturer-Specific

References

http://trousers.sourceforge.net/faq.html

Notes

^ [https://www.trustedcomputinggroup.org/groups/TCG_1_4_Architecture_Overview.pdf "TCG Architecture Overview" from The Trusted Computing Group
^ [https://www.trustedcomputinggroup.org/groups/pc_client/TCG_PCSpecificSpecification_v1_1.pdf " * TCG PC Specific Implementation Specification Version 1.1" from TCG'

[1] [https://www.trustedcomputinggroup.org/groups/TCG_1_4_Architecture_Overview.pdf "TCG Architecture Overview" from The Trusted Computing Group

[2] [https://www.trustedcomputinggroup.org/groups/pc_client/TCG_PCSpecificSpecification_v1_1.pdf " * TCG PC Specific Implementation Specification Version 1.1" from TCG'

[1]

[2]