X509Chain Constructor (Boolean) (System.Security.Cryptography.X509Certificates)

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.NET Framework Class Library

X509Chain Constructor (Boolean)

Initializes a new instance of the X509Chain class specifying a value that indicates whether the machine context should be used.

Namespace: System.Security.Cryptography.X509Certificates
Assembly: System (in System.dll)

Syntax

Visual Basic

Public Sub New ( _
	useMachineContext As Boolean _
)

public X509Chain(
	bool useMachineContext
)

Visual C++

public:
X509Chain(
	bool useMachineContext
)

new : 
        useMachineContext:bool -> X509Chain

Parameters

useMachineContext: Type: System.Boolean
true to use the machine context; false to use the current user context.

Remarks

This constructor can be used when the user profile is not loaded and the machine context needs to be used. When the useMachineContext parameter is set to true, the local machine context (HCCE_LOCAL_MACHINE flag) is used to create the chain. If the parameter is set to false, the current user context (HCCE_CURRENT_USER flag) is used.

Examples

The following code example opens the current user's personal certificate store, allows you to select a certificate, then writes certificate and certificate chain information to the console. The output depends on the certificate you select.

Visual Basic


'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);

Visual C++


//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 );

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference

X509Chain Class

X509Chain Overload

System.Security.Cryptography.X509Certificates Namespace