(Delphi ActiveX) Get Certificate Policy

See more Certificates Examples

Demonstrates how to get a certificate's policy OIDs (if any)

Chilkat for Delphi Downloads Chilkat ActiveX DLL for Delphi Chilkat non-ActiveX DLL for Delphi * The examples here use the ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
cert: TChilkatCert;
success: Integer;
oid: WideString;
strXml: WideString;
xml: TChilkatXml;

begin
cert := TChilkatCert.Create(Self);

success := cert.LoadFromFile('qa_data/certs/sample.cer');
if (success = 0) then
  begin
    Memo1.Lines.Add(cert.LastErrorText);
    Exit;
  end;

// The certificatePolicies OID is 2.5.29.32
oid := '2.5.29.32';
strXml := cert.GetExtensionAsXml(oid);
if (cert.LastMethodSuccess = 1) then
  begin
    Memo1.Lines.Add(strXml);

    // Sample result:
    // <sequence><sequence><oid>2.16.840.1.101.2.1.11.39</oid></sequence></sequence>

    xml := TChilkatXml.Create(Self);
    xml.LoadXml(strXml);
    Memo1.Lines.Add('Policy OID = ' + xml.GetChildContent('sequence|oid'));
  end;
end;