public sealed class X509Extension : IMessage<X509Extension>, IEquatable<X509Extension>, IDeepCloneable<X509Extension>, IBufferMessage, IMessage
Reference documentation and code samples for the Certificate Authority v1 API class X509Extension.
An [X509Extension][google.cloud.security.privateca.v1.X509Extension]
specifies an X.509 extension, which may be used in different parts of X.509
objects like certificates, CSRs, and CRLs.
Optional. Indicates whether or not this extension is critical (i.e., if the
client does not know how to handle this extension, the client should
consider this to be an error).
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThis webpage provides documentation for the \u003ccode\u003eX509Extension\u003c/code\u003e class within the Google Cloud Security PrivateCA v1 API, specifically version 3.6.0.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eX509Extension\u003c/code\u003e class is used to define X.509 extensions, which are elements found in X.509 objects such as certificates, CSRs, and CRLs.\u003c/p\u003e\n"],["\u003cp\u003eThe page lists links to documentation for multiple versions of the API, from 1.0.0 up to the latest, 3.9.0, and outlines the class inheritance and implemented interfaces.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eX509Extension\u003c/code\u003e class has properties for \u003ccode\u003eCritical\u003c/code\u003e (boolean), \u003ccode\u003eObjectId\u003c/code\u003e (OID), and \u003ccode\u003eValue\u003c/code\u003e (ByteString), allowing configuration of whether the extension is critical and defining its object identifier and value.\u003c/p\u003e\n"],["\u003cp\u003eIt offers two constructors, a default one and one that accepts another X509Extension object as a parameter for creating copies.\u003c/p\u003e\n"]]],[],null,[]]