(Delphi ActiveX) Convert Cert + Key to PEM and PFX

This example is based on the following question from a Chilkat customer:

We receive 2 files :

    MyCertificate.p7b
    MyCertificate-privatekey.pkey

We have to transform these certificate like this:

First convert it to PEM like this:

openssl pkcs7 -in MyCertificate.p7b -inform DER -out MyCertificate.pem -print_certs

Now we get MyCertificate.pem

Last step, we need to convert it to pfx file:

openssl pkcs12 -export -inkey moncertificat-privatekey.pkey  -in  moncertificat.pem -out moncertificat.pfx

Is there a way to make all these steps with Chilkat ?

I will be nice to include this directly in our software instead of askig the user to do it manualy.

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;
privKey: TPrivateKey;
success: Integer;

begin
cert := TChilkatCert.Create(Self);
privKey := TPrivateKey.Create(Self);

// Load any type of certificate (.cer, .p7b, .pem, etc.) by calling LoadFromFile.
success := cert.LoadFromFile('qa_data/certs/sample_cert_a.cer');
if (success <> 1) then
  begin
    Memo1.Lines.Add(cert.LastErrorText);
    Exit;
  end;

// Load the private key.
// (The various privKey methods that load from a file will automatically detect
// the format.  It doesn't actually matter if you try to load a non-PKCS8 format private key
// by calling LoadPkcs8EncryptedFile -- internally Chilkat will detect the format and will load
// based on what it finds.)
success := privKey.LoadPkcs8EncryptedFile('qa_data/certs/sample_key_a.pkcs8','password');
if (success <> 1) then
  begin
    Memo1.Lines.Add(privKey.LastErrorText);
    Exit;
  end;

// Write the cert as PEM.
success := cert.ExportCertPemFile('qa_output/cert.pem');

// Or get the PEM string directly...
Memo1.Lines.Add(cert.ExportCertPem());

// Associate the private key with the cert object.
success := cert.SetPrivateKey(privKey.ControlInterface);
if (success <> 1) then
  begin
    Memo1.Lines.Add(cert.LastErrorText);
    Exit;
  end;

// Write the cert + private key to a .pfx file.
success := cert.ExportToPfxFile('qa_data/myPfx.pfx','password',1);
if (success <> 1) then
  begin
    Memo1.Lines.Add(cert.LastErrorText);
    Exit;
  end;

Memo1.Lines.Add('Success.');
end;