X509ChainElement.Information Property

Definition

Namespace:

System.Security.Cryptography.X509Certificates

Assembly:

System.Security.Cryptography.dll

Source:

X509ChainElement.cs

Gets additional error information from an unmanaged certificate chain structure.

public:
 property System::String ^ Information { System::String ^ get(); };

public string Information { get; }

member this.Information : string

Public ReadOnly Property Information As String

Property Value

String

A string representing the pwszExtendedErrorInfo member of the unmanaged CERT_CHAIN_ELEMENT structure in the Crypto API.

Examples

The following code 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 the user selects.

//Output chain element information.
Console::WriteLine( "Chain Element Information" );
Console::WriteLine( "Number of chain elements: {0}", ch->ChainElements->Count );
Console::WriteLine( "Chain elements synchronized? {0} {1}", ch->ChainElements->IsSynchronized, Environment::NewLine );
System::Collections::IEnumerator^ myEnum = ch->ChainElements->GetEnumerator();
while ( myEnum->MoveNext() )
{
   X509ChainElement ^ element = safe_cast<X509ChainElement ^>(myEnum->Current);
   Console::WriteLine( "Element issuer name: {0}", element->Certificate->Issuer );
   Console::WriteLine( "Element certificate valid until: {0}", element->Certificate->NotAfter );
   Console::WriteLine( "Element certificate is valid: {0}", element->Certificate->Verify() );
   Console::WriteLine( "Element error status length: {0}", element->ChainElementStatus->Length );
   Console::WriteLine( "Element information: {0}", element->Information );
   Console::WriteLine( "Number of element extensions: {0}{1}", element->Certificate->Extensions->Count, Environment::NewLine );
   if ( ch->ChainStatus->Length > 1 )
   {
      for ( int index = 0; index < element->ChainElementStatus->Length; index++ )
      {
         Console::WriteLine( element->ChainElementStatus[ index ].Status );
         Console::WriteLine( element->ChainElementStatus[ index ].StatusInformation );
      }
   }
}

store->Close();

    //Output chain element information.
    Console.WriteLine ("Chain Element Information");
    Console.WriteLine ("Number of chain elements: {0}", ch.ChainElements.Count);
    Console.WriteLine ("Chain elements synchronized? {0} {1}", ch.ChainElements.IsSynchronized, Environment.NewLine);

    foreach (X509ChainElement element in ch.ChainElements)
    {
        Console.WriteLine ("Element issuer name: {0}", element.Certificate.Issuer);
        Console.WriteLine ("Element certificate valid until: {0}", element.Certificate.NotAfter);
        Console.WriteLine ("Element certificate is valid: {0}", element.Certificate.Verify ());
        Console.WriteLine ("Element error status length: {0}", element.ChainElementStatus.Length);
        Console.WriteLine ("Element information: {0}", element.Information);
        Console.WriteLine ("Number of element extensions: {0}{1}", element.Certificate.Extensions.Count, Environment.NewLine);

        if (ch.ChainStatus.Length > 1)
        {
            for (int index = 0; index < element.ChainElementStatus.Length; index++)
            {
                Console.WriteLine (element.ChainElementStatus[index].Status);
                Console.WriteLine (element.ChainElementStatus[index].StatusInformation);
            }
        }
    }
    store.Close();

'Output chain element information.
Console.WriteLine("Chain Element Information")
Console.WriteLine("Number of chain elements: {0}", ch.ChainElements.Count)
Console.WriteLine("Chain elements synchronized? {0} {1}", ch.ChainElements.IsSynchronized, Environment.NewLine)

Dim element As X509ChainElement
For Each element In ch.ChainElements
    Console.WriteLine("Element issuer name: {0}", element.Certificate.Issuer)
    Console.WriteLine("Element certificate valid until: {0}", element.Certificate.NotAfter)
    Console.WriteLine("Element certificate is valid: {0}", element.Certificate.Verify())
    Console.WriteLine("Element error status length: {0}", element.ChainElementStatus.Length)
    Console.WriteLine("Element information: {0}", element.Information)
    Console.WriteLine("Number of element extensions: {0}{1}", element.Certificate.Extensions.Count, Environment.NewLine)

    If ch.ChainStatus.Length > 1 Then
        Dim index As Integer
        For index = 0 To element.ChainElementStatus.Length
            Console.WriteLine(element.ChainElementStatus(index).Status)
            Console.WriteLine(element.ChainElementStatus(index).StatusInformation)
        Next index
    End If
Next element
store.Close()

Remarks

This string is available only on computers with Windows XP Professional or later operating systems. An empty string ("") is returned if the operating system is not Windows XP Professional or later.