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NITRO-ATT-03: Attestation document binds this exchange and resists replay

Property Value
Severity high
Platform AWS Nitro Enclaves
Lifecycle stage attest
Policy P-04: Attestation evidence is fresh and fully verified
Mode Passive: reads only the files and values you pass to the scan.

What it checks

It passes when:

  • Attestation document is fresh and bound to this exchange.

How to fix

  • Request the document with a fresh random nonce, check its timestamp, and bind the released data key to the document's public_key (the KMS Recipient flow).

After the fix, scan again: the check should report PASS.

When it is not assessed

SKIP:

  • No --attestation-doc supplied; skipping check.

ERROR:

  • Could not load the attestation document: …

Scan inputs

The untrust scan options this check reads:

Option Description
--nitro-attestation-doc Path to a captured COSE_Sign1 attestation document (ENCLAVE-06).

Permissions

None. The check reads only the files or values you pass to the scan.

Generated from untrust 1.3.0 (commit 7ef462d9a0c3).