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Sign CSR for LDevID generation #818

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iadgovuser59 opened this issue Aug 5, 2024 · 0 comments
Open

Sign CSR for LDevID generation #818

iadgovuser59 opened this issue Aug 5, 2024 · 0 comments
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enhancement New feature or request

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iadgovuser59 commented Aug 5, 2024 •
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Currently, the CSR for LDevID creation is unsigned during the provisioning process. Per the TCG specification "TCG TPM 2.0 Keys for Device Identity and Attestation", we will need to:

  • Certify the LDevID using the same AK on the device's TPM. This will create TPM2B_ATTEST and TPMT_SIGNATURE structures that we can then store, which will be verified by the HIRS portal.
  • Sign the digest of the entire protobuf structure for the CSR.

Note: The above will only be applicable when an LDevID is present in the request.
@iadgovuser59 iadgovuser59 self-assigned this Aug 5, 2024
@iadgovuser59 iadgovuser59 changed the title Add security hardening for LDevID certificate generation Sign CSR for LDevID/AK generation Aug 6, 2024
@iadgovuser59 iadgovuser59 changed the title Sign CSR for LDevID/AK generation Sign CSR for LDevID generation Aug 7, 2024
@iadgovuser59 iadgovuser59 added the enhancement New feature or request label Aug 8, 2024
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