(PHP Extension) Load Java KeyStore and Access Contents

Loads a Java keystore file and iterates over the contents. A Java keystore (.jks) file can contain one or more trusted root certificate entries and/or one or more private key entries. Each private key entry includes an associated certificate chain.

Chilkat PHP Downloads PHP Extension for Windows, Linux, MacOS, Alpine Linux, Solaris

<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

// This requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

$jks = new CkJavaKeyStore();

// Load the Java keystore from a file.  The JKS file password is used
// to verify the keyed digest that is found at the very end of the keystore.
// It verifies there has been no tampering with the file.
$success = $jks->LoadFile('jksFilePassword','/someDir/keyStore.jks');
if ($success != true) {
    print $jks->lastErrorText() . "\n";
    exit;
}

// Find out how many of each type of entry:
$numTrustedCerts = $jks->get_NumTrustedCerts();
$numPrivateKeys = $jks->get_NumPrivateKeys();

// For each trusted certificate, access it by getting
// it as a cert object.  Also get the alias associated with the certificate.
print 'Trusted Certs:' . "\n";
$i = 0;
while ($i < $numTrustedCerts) {
    // cert is a CkCert
    $cert = $jks->GetTrustedCert($i);
    print $jks->getTrustedCertAlias($i) . ': ' . $cert->subjectDN() . "\n";

    $i = $i + 1;
}

// For each private key entry, get the private key and
// the associated certificate chain.
// Each private key is password protected.  Usually it is the same
// password as used for the keyed digest of the entire JKS.  
// However, this does not have to be.  The password is passed
// here to handle the possibility of each private key requiring
// a different password.
print 'Private Keys:' . "\n";
$i = 0;
while ($i < $numPrivateKeys) {
    // privKey is a CkPrivateKey
    $privKey = $jks->GetPrivateKey('jksFilePassword',$i);
    print $jks->getPrivateKeyAlias($i) . "\n";
    // certChain is a CkCertChain
    $certChain = $jks->GetCertChain($i);

    // The 1st certificate in the chain is the one associated with the private key.
    // cert is a CkCert
    $cert = $certChain->GetCert(0);
    print $cert->subjectDN() . "\n";

    $i = $i + 1;
}


?>