GCP Professional Cloud Security Engineer Practice Question

Your organization will enforce Binary Authorization so only container images that pass vulnerability scanning can run on production GKE clusters. Cloud Build already signs each image digest with an asymmetric Cloud KMS key, and the policy requires an attestation from an attestor named prod-vuln-scan. To finish configuring prod-vuln-scan so GKE can verify the CI/CD signatures at deployment, what must you add to the attestor?

  • The public key that corresponds to the private key the CI/CD pipeline uses to sign the image digest.

  • The Cloud Build trigger ID that built the image so Binary Authorization can look up its provenance.

  • The private key from Cloud KMS so Binary Authorization can decrypt the signature during deployment.

  • The Artifact Registry repository URI that hosts the image so the attestor can locate its layers.

GCP Professional Cloud Security Engineer
Managing operations
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