(Delphi DLL) Load Base64-encoded X.509 Certificate (.cer)

Loads a digital certificate from a base64 encoded DER X.509 Certificate (.cer, .crt) and fetches information about the cert.

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

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

...

procedure TForm1.Button1Click(Sender: TObject);
var
cert: HCkCert;
success: Boolean;

begin
cert := CkCert_Create();

//  LoadFromFile will load virtually any certificate format file.
//  It will auto-recognize the format and load appropiately.
//  A base64-encoded DER X.509 certificate file
//  contains the binary DER in base64 encoded form.
//  Therefore, it is a text file that will begin like this:
//  -----BEGIN CERTIFICATE-----
//  MIIFbjCCBFagAwIBAgIGdDPNv/L0MA0GCSqGSIb3DQEBBQUAMIHKMQswCQYDVQQG
//  EwJVUzEQMA4GA1UECBMHQXJpem9uYTETMBEGA1UEBxMKU2NvdHRzZGFsZTEaMBgG
//  ...

success := CkCert_LoadFromFile(cert,'/Users/chilkat/testData/cer/chilkat_base64.cer');
if (success <> True) then
  begin
    Memo1.Lines.Add(CkCert__lastErrorText(cert));
    Exit;
  end;

//  DN = "Distinguished Name"
Memo1.Lines.Add('SubjectDN:' + CkCert__subjectDN(cert));

Memo1.Lines.Add('Common Name:' + CkCert__subjectCN(cert));
Memo1.Lines.Add('Issuer Common Name:' + CkCert__issuerCN(cert));

Memo1.Lines.Add('Serial Number:' + CkCert__serialNumber(cert));

CkCert_Dispose(cert);

end;