“ ) ereht debircsed sa noitatsettA yeK gnitnemelpmi nehWhttps://source.android.com/docs/security/features/keystore/attestation ), extracting the provisioning information extension give us sometimes another entry in the map in addition of the certs_issued (ID 1). The ID is 3 and it seems to match the manufacturer/vendor/model. Since there is nothing in the doc, any idea how we should use that information? ”