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(Delphi DLL) 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 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, PrivateKey;

...

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

begin
cert := CkCert_Create();
privKey := CkPrivateKey_Create();

//  Load any type of certificate (.cer, .p7b, .pem, etc.) by calling LoadFromFile.
success := CkCert_LoadFromFile(cert,'qa_data/certs/sample_cert_a.cer');
if (success <> True) then
  begin
    Memo1.Lines.Add(CkCert__lastErrorText(cert));
    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 := CkPrivateKey_LoadPkcs8EncryptedFile(privKey,'qa_data/certs/sample_key_a.pkcs8','password');
if (success <> True) then
  begin
    Memo1.Lines.Add(CkPrivateKey__lastErrorText(privKey));
    Exit;
  end;

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

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

//  Associate the private key with the cert object.
success := CkCert_SetPrivateKey(cert,privKey);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkCert__lastErrorText(cert));
    Exit;
  end;

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

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

CkCert_Dispose(cert);
CkPrivateKey_Dispose(privKey);

end;

 

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