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Mimi Zohar ff26f9704e ima-evm-utils: calculate and verify the template data digest
Validating a TPM quote of PCR-10, the default IMA PCR, requires not only
sending the quote to the verifier, but the IMA measurement list as well.
The attestation server can verify the IMA measurement list simply by
walking the measurement list and re-calculating the PCRs based on the
template data digest.  In addition, the attestation server could verify
the template data digest based on the template data.

The LTP and standalone "ima_measure" test optionally verify the template
data digest.  Similarly add "--verify" support to conditionally verify
the template data digest against the template data.

Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
2020-07-09 11:00:21 -04:00
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