This corresponds to the
[X509Parameters.policy_ids][google.cloud.security.privateca.v1.X509Parameters.policy_ids]
field.
Generated from protobuf enum POLICY_IDS = 4;
AIA_OCSP_SERVERS
Value: 5
Refers to OCSP servers in a certificate's Authority Information Access
extension, as described in
RFC 5280
section 4.2.2.1,
This corresponds to the
[X509Parameters.aia_ocsp_servers][google.cloud.security.privateca.v1.X509Parameters.aia_ocsp_servers]
field.
Generated from protobuf enum AIA_OCSP_SERVERS = 5;
[[["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,["# Google Certificate Authority Service V1 Client - Class KnownCertificateExtension (2.1.1)\n\nVersion latestkeyboard_arrow_down\n\n- [2.1.1 (latest)](/php/docs/reference/cloud-security-private-ca/latest/V1.CertificateExtensionConstraints.KnownCertificateExtension)\n- [2.1.0](/php/docs/reference/cloud-security-private-ca/2.1.0/V1.CertificateExtensionConstraints.KnownCertificateExtension)\n- [2.0.3](/php/docs/reference/cloud-security-private-ca/2.0.3/V1.CertificateExtensionConstraints.KnownCertificateExtension)\n- [1.7.3](/php/docs/reference/cloud-security-private-ca/1.7.3/V1.CertificateExtensionConstraints.KnownCertificateExtension)\n- [1.5.0](/php/docs/reference/cloud-security-private-ca/1.5.0/V1.CertificateExtensionConstraints.KnownCertificateExtension)\n- [1.4.2](/php/docs/reference/cloud-security-private-ca/1.4.2/V1.CertificateExtensionConstraints.KnownCertificateExtension)\n- [1.3.1](/php/docs/reference/cloud-security-private-ca/1.3.1/V1.CertificateExtensionConstraints.KnownCertificateExtension)\n- [1.2.2](/php/docs/reference/cloud-security-private-ca/1.2.2/V1.CertificateExtensionConstraints.KnownCertificateExtension)\n- [1.1.0](/php/docs/reference/cloud-security-private-ca/1.1.0/V1.CertificateExtensionConstraints.KnownCertificateExtension)\n- [1.0.3](/php/docs/reference/cloud-security-private-ca/1.0.3/V1.CertificateExtensionConstraints.KnownCertificateExtension) \nReference documentation and code samples for the Google Certificate Authority Service V1 Client class KnownCertificateExtension.\n\nDescribes well-known X.509 extensions that can appear in a\n[Certificate](/php/docs/reference/cloud-security-private-ca/latest/V1.Certificate), not\nincluding the\n[SubjectAltNames](/php/docs/reference/cloud-security-private-ca/latest/V1.SubjectAltNames)\nextension.\n\nProtobuf type `google.cloud.security.privateca.v1.CertificateExtensionConstraints.KnownCertificateExtension`\n\nNamespace\n---------\n\nGoogle \\\\ Cloud \\\\ Security \\\\ PrivateCA \\\\ V1 \\\\ CertificateExtensionConstraints\n\nMethods\n-------\n\n### static::name\n\n### static::value\n\nConstants\n---------\n\n### KNOWN_CERTIFICATE_EXTENSION_UNSPECIFIED\n\n Value: 0\n\nNot specified.\n\nGenerated from protobuf enum `KNOWN_CERTIFICATE_EXTENSION_UNSPECIFIED = 0;`\n\n### BASE_KEY_USAGE\n\n Value: 1\n\nRefers to a certificate's Key Usage extension, as described in [RFC 5280\nsection 4.2.1.3](https://tools.ietf.org/html/rfc5280#section-4.2.1.3).\n\nThis corresponds to the\n[KeyUsage.base_key_usage](/php/docs/reference/cloud-security-private-ca/latest/V1.KeyUsage#_Google_Cloud_Security_PrivateCA_V1_KeyUsage__getBaseKeyUsage__)\nfield.\n\nGenerated from protobuf enum `BASE_KEY_USAGE = 1;`\n\n### EXTENDED_KEY_USAGE\n\n Value: 2\n\nRefers to a certificate's Extended Key Usage extension, as described in\n[RFC 5280\nsection 4.2.1.12](https://tools.ietf.org/html/rfc5280#section-4.2.1.12).\n\nThis corresponds to the\n[KeyUsage.extended_key_usage](/php/docs/reference/cloud-security-private-ca/latest/V1.KeyUsage#_Google_Cloud_Security_PrivateCA_V1_KeyUsage__getExtendedKeyUsage__)\nmessage.\n\nGenerated from protobuf enum `EXTENDED_KEY_USAGE = 2;`\n\n### CA_OPTIONS\n\n Value: 3\n\nRefers to a certificate's Basic Constraints extension, as described in\n[RFC 5280\nsection 4.2.1.9](https://tools.ietf.org/html/rfc5280#section-4.2.1.9).\n\nThis corresponds to the\n\\[X509Parameters.ca_options\\]\\[google.cloud.security.privateca.v1.X509Parameters.ca_options\\]\nfield.\n\nGenerated from protobuf enum `CA_OPTIONS = 3;`\n\n### POLICY_IDS\n\n Value: 4\n\nRefers to a certificate's Policy object identifiers, as described in\n[RFC 5280\nsection 4.2.1.4](https://tools.ietf.org/html/rfc5280#section-4.2.1.4).\n\nThis corresponds to the\n\\[X509Parameters.policy_ids\\]\\[google.cloud.security.privateca.v1.X509Parameters.policy_ids\\]\nfield.\n\nGenerated from protobuf enum `POLICY_IDS = 4;`\n\n### AIA_OCSP_SERVERS\n\n Value: 5\n\nRefers to OCSP servers in a certificate's Authority Information Access\nextension, as described in\n[RFC 5280\nsection 4.2.2.1](https://tools.ietf.org/html/rfc5280#section-4.2.2.1),\nThis corresponds to the\n\\[X509Parameters.aia_ocsp_servers\\]\\[google.cloud.security.privateca.v1.X509Parameters.aia_ocsp_servers\\]\nfield.\n\nGenerated from protobuf enum `AIA_OCSP_SERVERS = 5;`\n\n### NAME_CONSTRAINTS\n\n Value: 6\n\nRefers to Name Constraints extension as described in\n[RFC 5280\nsection 4.2.1.10](https://tools.ietf.org/html/rfc5280#section-4.2.1.10)\n\nGenerated from protobuf enum `NAME_CONSTRAINTS = 6;`"]]
