Specifies the mode used to check for X509 certificate revocation.
(in System.dll)
Visual Basic (Declaration)
Public Enumeration X509RevocationMode
Dim instance As X509RevocationMode
public enum X509RevocationMode
public enum class X509RevocationMode
public enum X509RevocationMode
| Member name | Description |
|---|
| NoCheck | No revocation check is performed on the certificate. |
| Online | A revocation check is made using an online certificate revocation list (CRL). |
| Offline | A revocation check is made using a cached certificate revocation list (CRL). |
This enumeration is used to specify whether a revocation check occurs and if it is performed online or offline.
The following example opens the current user's personal certificate store, allows the user to select a certificate, then writes certificate and certificate chain information to the console. The output depends on the certificate you select.
'Output chain information of the selected certificate.
Dim ch As New X509Chain()
ch.Build(certificate)
Console.WriteLine("Chain Information")
ch.ChainPolicy.RevocationMode = X509RevocationMode.Online
Console.WriteLine("Chain revocation flag: {0}", ch.ChainPolicy.RevocationFlag)
Console.WriteLine("Chain revocation mode: {0}", ch.ChainPolicy.RevocationMode)
Console.WriteLine("Chain verification flag: {0}", ch.ChainPolicy.VerificationFlags)
Console.WriteLine("Chain verification time: {0}", ch.ChainPolicy.VerificationTime)
Console.WriteLine("Chain status length: {0}", ch.ChainStatus.Length)
Console.WriteLine("Chain application policy count: {0}", ch.ChainPolicy.ApplicationPolicy.Count)
Console.WriteLine("Chain certificate policy count: {0} {1}", ch.ChainPolicy.CertificatePolicy.Count, Environment.NewLine)
//Output chain information of the selected certificate.
X509Chain ch = new X509Chain();
ch.Build (certificate);
Console.WriteLine ("Chain Information");
ch.ChainPolicy.RevocationMode = X509RevocationMode.Online;
Console.WriteLine ("Chain revocation flag: {0}", ch.ChainPolicy.RevocationFlag);
Console.WriteLine ("Chain revocation mode: {0}", ch.ChainPolicy.RevocationMode);
Console.WriteLine ("Chain verification flag: {0}", ch.ChainPolicy.VerificationFlags);
Console.WriteLine ("Chain verification time: {0}", ch.ChainPolicy.VerificationTime);
Console.WriteLine ("Chain status length: {0}", ch.ChainStatus.Length);
Console.WriteLine ("Chain application policy count: {0}", ch.ChainPolicy.ApplicationPolicy.Count);
Console.WriteLine ("Chain certificate policy count: {0} {1}", ch.ChainPolicy.CertificatePolicy.Count, Environment.NewLine);
//Output chain information of the selected certificate.
X509Chain ^ ch = gcnew X509Chain;
ch->Build( certificate );
Console::WriteLine( "Chain Information" );
ch->ChainPolicy->RevocationMode = X509RevocationMode::Online;
Console::WriteLine( "Chain revocation flag: {0}", ch->ChainPolicy->RevocationFlag );
Console::WriteLine( "Chain revocation mode: {0}", ch->ChainPolicy->RevocationMode );
Console::WriteLine( "Chain verification flag: {0}", ch->ChainPolicy->VerificationFlags );
Console::WriteLine( "Chain verification time: {0}", ch->ChainPolicy->VerificationTime );
Console::WriteLine( "Chain status length: {0}", ch->ChainStatus->Length );
Console::WriteLine( "Chain application policy count: {0}", ch->ChainPolicy->ApplicationPolicy->Count );
Console::WriteLine( "Chain certificate policy count: {0} {1}", ch->ChainPolicy->CertificatePolicy->Count, Environment::NewLine );
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
.NET Framework
Supported in: 3.5, 3.0, 2.0
Reference