Perl

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 Perl

use strict;
use warnings;
use Chilkat2;

my $cert = Chilkat2::Cert->new;
my $privKey = Chilkat2::PrivateKey->new;

# Load any type of certificate (.cer, .p7b, .pem, etc.) by calling LoadFromFile.
my $success = $cert->LoadFromFile('qa_data/certs/sample_cert_a.cer');
if (!$success) {
    print $cert->LastErrorText, "\n";
    exit;
}

# 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) {
    print $privKey->LastErrorText, "\n";
    exit;
}

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

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

# Associate the private key with the cert object.
$success = $cert->SetPrivateKey($privKey);
if (!$success) {
    print $cert->LastErrorText, "\n";
    exit;
}

# Write the cert + private key to a .pfx file.
$success = $cert->ExportToPfxFile('qa_data/myPfx.pfx', 'password', 1);
if (!$success) {
    print $cert->LastErrorText, "\n";
    exit;
}

print "Success.\n";