PHP

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 PHP

<?php

use Chilkat2\Cert;
use Chilkat2\PrivateKey;

$cert = new Cert();
$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 (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

// Write the cert as PEM.
$cert->ExportCertPemFile('qa_output/cert.pem');

// Or get the PEM string directly...
echo $cert->ExportCertPem(), "\n";

// 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 (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

echo "Success.\n";