(PHP ActiveX) Iterate Keys and Certs in PEM

Demonstrates how to access each of the private keys and certs contained within a PEM.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows Note: The php_com_dotnet.dll may need to be enabled inside of php.ini.

<?php

// Starting in v9.5.0.49, all Chilkat classes can be unlocked at once at the beginning of a program
// by calling UnlockBundle.  It requires a Bundle unlock code.
// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Global')
$chilkatGlob = new COM("Chilkat.Global");
$success = $chilkatGlob->UnlockBundle('Anything for 30-day trial.');
if ($success != 1) {
    print $chilkatGlob->LastErrorText . "\n";
    exit;
}

// The Chilkat PEM class was introduced in v9.5.0.49.  
// It requires the bundle to be unlocked, as shown above.
// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Pem')
$pem = new COM("Chilkat.Pem");

// Load the PEM from a file.
// If the PEM is encrypted, provide a password.  Otherwise pass an empty string for the password.
$password = 'myPassword';
$success = $pem->LoadPemFile('../myPemFiles/myPem.pem',$password);
if ($success != 1) {
    print $pem->LastErrorText . "\n";
    exit;
}

// Note: If the app already has the PEM pre-loaded in a string variable, then load it 
// by calling LoadPem instead.  
$pemContent = '... the PEM contents ...';
$success = $pem->LoadPem($pemContent,$password);
// Check for success as before..

// Iterate over the private keys.
$numPrivateKeys = $pem->NumPrivateKeys;
$i = 0;

while ($i < $numPrivateKeys) {

    // privKey is a Chilkat.PrivateKey
    $privKey = $pem->GetPrivateKey($i);
    print 'Private Key ' . $i . ' is ' . $privKey->BitLength . ' in length' . "\n";

    $i = $i + 1;
}

// Iterate over the certificates.
$numCerts = $pem->NumCerts;
$i = 0;

while ($i < $numCerts) {

    // cert is a Chilkat.Cert
    $cert = $pem->GetCert($i);
    print 'Certificate ' . $i . ' : ' . $cert->SubjectDN . "\n";

    $i = $i + 1;
}


?>