public sealed class X509Extension : IMessage<X509Extension>, IEquatable<X509Extension>, IDeepCloneable<X509Extension>, IBufferMessage, IMessage
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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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\u003eThe latest version available for the \u003ccode\u003eX509Extension\u003c/code\u003e is 3.9.0, and the page lists versions back to 1.0.0.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eX509Extension\u003c/code\u003e is a class within the \u003ccode\u003eGoogle.Cloud.Security.PrivateCA.V1\u003c/code\u003e namespace that specifies an X.509 extension, which can be used in certificates, CSRs, and CRLs.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eX509Extension\u003c/code\u003e class implements several interfaces including \u003ccode\u003eIMessage\u003c/code\u003e, \u003ccode\u003eIEquatable\u003c/code\u003e, \u003ccode\u003eIDeepCloneable\u003c/code\u003e, and \u003ccode\u003eIBufferMessage\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eX509Extension\u003c/code\u003e class has two constructors: a default one and another that accepts another \u003ccode\u003eX509Extension\u003c/code\u003e object as a parameter.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eX509Extension\u003c/code\u003e class has three properties: \u003ccode\u003eCritical\u003c/code\u003e, a boolean indicating whether the extension is critical, \u003ccode\u003eObjectId\u003c/code\u003e, which specifies the OID for the extension, and \u003ccode\u003eValue\u003c/code\u003e, which represents the extension's value as a \u003ccode\u003eByteString\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,[]]