InstanceTrustedStorePath Property (IUAReadOnlyApplicationManifest)

The store containing trusted instance certificates.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
<NotNullAttribute()>
ReadOnly Property InstanceTrustedStorePath As String

'Usage
 
Dim instance As IUAReadOnlyApplicationManifest
Dim value As String
 
value = instance.InstanceTrustedStorePath

[NotNull()]
string InstanceTrustedStorePath {get;}

[NotNull()]
property String^ InstanceTrustedStorePath {
   String^ get();
}

Property Value

For directory certificate store, this is a directory name. For system (Windows, Linux, ...) certificate store, this is a "LocalMachine\" or "CurrentUser\" followed by a store name.

Remarks

The list of trusted certificates for application instances.

Some UA applications will use self-signed certificates (certificates without a CA) which means that every application which communicates with it must be configured to trust it.

Administrators may designate a certificate store that contains trusted UA application instance certificates(this store should not be the same as the store used for CAs certificates). Alternately, Administrators may enter the certificates explicitly in this list.

In order to obtain or modify this parameter, access the OpcLabs.EasyOpc.UA.Engine.UAClientServerApplicationParameters.ApplicationManifest property of OpcLabs.EasyOpc.UA.Application.EasyUAApplicationCore.ApplicationParameters property of static EasyUAApplication.Instance.

Example

COM

// This example demonstrates how to configure the location of the certificate stores to directories specified by absolute
// paths.
//
// Find all latest examples here : https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .


// Obtain the application interface.
$Application = new COM("OpcLabs.EasyOpc.UA.Application.EasyUAApplication");

// Set the application certificate store paths.
// Note that this only works once in each host process.
// If this code is used in a Web application, make sure it is executed at the beginning of every page that can be used to 
// enter your application. You will most likely make it into a subroutine then.
$Application->ApplicationParameters->ApplicationManifest->InstanceIssuerStorePath =
    "C:\\MyCertificateStores\\UA Certificate Authorities";
$Application->ApplicationParameters->ApplicationManifest->InstanceOwnStorePath =
    "C:\\MyCertificateStores\\Machine Default";
$Application->ApplicationParameters->ApplicationManifest->InstanceTrustedStorePath =
    "C:\\MyCertificateStores\\UA Applications";
$Application->ApplicationParameters->ApplicationManifest->RejectedStorePath =
    "C:\\MyCertificateStores\\RejectedCertificates";

// Do something - invoke an OPC read, to trigger creation of the certificate.
$Client = new COM("OpcLabs.EasyOpc.UA.EasyUAClient");
try
{
    $value = $Client->ReadValue(
        //"http://opcua.demo-this.com:51211/UA/SampleServer", 
        "opc.tcp://opcua.demo-this.com:51210/UA/SampleServer", 
        "nsu=http://test.org/UA/Data/ ;i=10853");
}
catch (com_exception $e)
{
    printf("*** Failure: %s\n", $e->getMessage());
}

printf("Finished.\n");

Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows

Reference

IUAReadOnlyApplicationManifest Interface
IUAReadOnlyApplicationManifest Members

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