Java

Convert Cert + Key to PEM and PFX

See more Certificates Examples

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.

Chilkat2 Java

import com.chilkatsoft.chilkat2.Cert;
import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.PrivateKey;

public class ChilkatExample {

    public static void main(String[] args) {
        Cert cert = new Cert();
        PrivateKey privKey = new PrivateKey();

        // Load any type of certificate (.cer, .p7b, .pem, etc.) by calling LoadFromFile.
        try {
            cert.loadFromFile("qa_data/certs/sample_cert_a.cer");

            // 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.)
            privKey.loadPkcs8EncryptedFile("qa_data/certs/sample_key_a.pkcs8", "password");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // Write the cert as PEM.
        cert.exportCertPemFile("qa_output/cert.pem");

        // Or get the PEM string directly...
        System.out.println(cert.exportCertPem());

        // Associate the private key with the cert object.
        try {
            cert.setPrivateKey(privKey);

            // Write the cert + private key to a .pfx file.
            cert.exportToPfxFile("qa_data/myPfx.pfx", "password", true);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("Success.");
    }
}