[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-09-04 UTC."],[],[],null,["# Cloud KMS V1 Client - Class KeyOperationAttestation (2.3.1)\n\nVersion latestkeyboard_arrow_down\n\n- [2.3.1 (latest)](/php/docs/reference/cloud-kms/latest/V1.KeyOperationAttestation)\n- [2.3.0](/php/docs/reference/cloud-kms/2.3.0/V1.KeyOperationAttestation)\n- [2.2.0](/php/docs/reference/cloud-kms/2.2.0/V1.KeyOperationAttestation)\n- [2.1.6](/php/docs/reference/cloud-kms/2.1.6/V1.KeyOperationAttestation)\n- [2.0.0](/php/docs/reference/cloud-kms/2.0.0/V1.KeyOperationAttestation)\n- [1.23.0](/php/docs/reference/cloud-kms/1.23.0/V1.KeyOperationAttestation)\n- [1.22.1](/php/docs/reference/cloud-kms/1.22.1/V1.KeyOperationAttestation)\n- [1.21.4](/php/docs/reference/cloud-kms/1.21.4/V1.KeyOperationAttestation)\n- [1.20.3](/php/docs/reference/cloud-kms/1.20.3/V1.KeyOperationAttestation)\n- [1.19.0](/php/docs/reference/cloud-kms/1.19.0/V1.KeyOperationAttestation)\n- [1.18.1](/php/docs/reference/cloud-kms/1.18.1/V1.KeyOperationAttestation)\n- [1.17.0](/php/docs/reference/cloud-kms/1.17.0/V1.KeyOperationAttestation)\n- [1.16.4](/php/docs/reference/cloud-kms/1.16.4/V1.KeyOperationAttestation)\n- [1.15.3](/php/docs/reference/cloud-kms/1.15.3/V1.KeyOperationAttestation) \nReference documentation and code samples for the Cloud KMS V1 Client class KeyOperationAttestation.\n\nContains an HSM-generated attestation about a key operation. For more\ninformation, see [Verifying attestations](https://cloud.google.com/kms/docs/attest-key).\n\nGenerated from protobuf message `google.cloud.kms.v1.KeyOperationAttestation`\n\nNamespace\n---------\n\nGoogle \\\\ Cloud \\\\ Kms \\\\ V1\n\nMethods\n-------\n\n### __construct\n\nConstructor.\n\n### getFormat\n\nOutput only. The format of the attestation data.\n\n### setFormat\n\nOutput only. The format of the attestation data.\n\n### getContent\n\nOutput only. The attestation data provided by the HSM when the key\noperation was performed.\n\n### setContent\n\nOutput only. The attestation data provided by the HSM when the key\noperation was performed.\n\n### getCertChains\n\nOutput only. The certificate chains needed to validate the attestation\n\n### hasCertChains\n\n### clearCertChains\n\n### setCertChains\n\nOutput only. The certificate chains needed to validate the attestation"]]