Credible platform module and active measurement method thereof

Abstract

The invention discloses a trusted platform module and an active measurement method thereof, which relate to the field of information safety. The trusted platform module TPM is a root of trust of a trusted computing platform and a core module of trusted computing; the invention points out CRTM constitution of a root core of measurement in a TPM chip and a problem of establishing an information chain, proposes a new design proposal of the trusted platform module and the measurement method with an active mode based on the trusted platform module, designs the root of trust for measurement of the platform in the trusted platform module, solves the safety threat on the root of trust caused by tampering the BIOS and utilizes the module as the root of trust to establish a trust chain with the active mode. The invention names the module as a Trusted Platform Control Module TPCM and reflects the control function of the root of trust in the whole platform.

Description

technical field

[0001] The invention relates to the field of information security, in particular to a trusted platform module and a method for active measurement thereof. Background technique

[0002] The basic idea of ​​trusted computing proposed by the International Trusted Computing Organization TCG is to build a root of trust (Root of trust), and start from the root of trust. To the BIOS, the operating system, and then to the application, one level of verification is performed, so as to extend this trust to the entire computer system and ensure that the computer system is credible.

[0003] TCG has launched a series of specifications based on Trusted Platform Modules (TPM), using TPM as the root of trust to establish a chain of trust from the underlying hardware to the operating system to form a trusted platform.

[0004] Three trust roots are given in the TCG specification, trusted storage root, trusted reporting root and trusted measurement root. The first two roots a...

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