TPM2_Quote() computes a hash of the PCRs selected by the caller, and signs that hash, some additional metadata, and any extra data provided by the caller, with a signing key named by the caller. The caller must have access to that key, naturally.

tpm2_quote (1) - Provide quote and signature for given list of PCRs in given algorithm/banks. Context object for the quote signing key. The list of PCR banks and selected PCRs' ids for each bank. Also see NOTES section below. Message output file, records the quote message that makes up the data that is signed by the TPM.

Jul 10, 2024 · Using an attestation identity key, the TPM can generate and cryptographically sign a statement (or quote) of the current measurements in the TPM. Windows can create unique attestation identity keys for various scenarios to prevent separate evaluators from collaborating to track the same device.

Jul 7, 2024 · TPM specifications suggest a few ideas: Remote attestation. Prove to a third-party that we booted our system in this state. TPMs have a notion of “quoting”— signing a statement about the current state of the PCRs, using an attestation key that is bound to that TPM.

The TPM quote operation is used to authoritatively verify the contents of a TPM's Platform Configuration Registers (PCRs). During provisioning, a composite hash of a selected set of PCRs is computed. The TPM quote operation produces a composite hash that can be compared with the one computed while provisioning.

Is quote valid, and from legitimate TPM? Is nonce the same one I provided? If fresh, proves quote current. Are PCRs in state I approve of? Nonces are intended for freshness only Adding meaning enables a man-in-the-middle attack! "B has PCRs P, and …

Feb 21, 2018 · Download TPM Quote Tools for free. TPM Quote Tools is a collection of programs that provide support for TPM based attestation using the TPM quote operation.

Jun 12, 2020 · Using the tpm2_quote tool. The signing scheme used to sign the quote determines the digest algorithm for the quote. This should be done once on a reference platform.

TPM Quote Tools The TPM Quote Tools is a collection of programs that provide support for TPM based attestation using the TPM quote mechanism. The manual page for tpm_quote_tools provides a usage overview.

tpm2_quote(1) - Provide quote and signature for given list of PCRs in given algorithm/banks.