(MFC) 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 C/C++ Library Downloads MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkCert.h>
#include <CkPrivateKey.h>

void ChilkatSample(void)
    {
    CkString strOut;

    CkCert cert;
    CkPrivateKey privKey;

    //  Load any type of certificate (.cer, .p7b, .pem, etc.) by calling LoadFromFile.
    bool success = cert.LoadFromFile("qa_data/certs/sample_cert_a.cer");
    if (success != true) {
        strOut.append(cert.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    //  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 != true) {
        strOut.append(privKey.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

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

    //  Or get the PEM string directly...
    strOut.append(cert.exportCertPem());
    strOut.append("\r\n");

    //  Associate the private key with the cert object.
    success = cert.SetPrivateKey(privKey);
    if (success != true) {
        strOut.append(cert.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    //  Write the cert + private key to a .pfx file.
    success = cert.ExportToPfxFile("qa_data/myPfx.pfx","password",true);
    if (success != true) {
        strOut.append(cert.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    strOut.append("Success.");
    strOut.append("\r\n");


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }