(PHP Extension) Import a PFX/P12 into the Windows Certificate Stores

Demonstrates how to import the certificates contained in a .pfx/.p12 to the Windows certificate stores.

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");

$primaryCert = new CkCert();

// Load a PFX file into a certificate object.
// The cert object will contain the certificate from the PFX that has a private key.
// The certs in the chain of authentication (if contained in the PFX) are also loaded,
// and can be accessed by getting the certificate chain (see below).
// If the PFX did not include the issuer certs in the chain of authentication, then Chilkat will
// automatically try to construct the issuer chain from the CA and intermedicate CA certs
// already installed on the Windows system.
$pfxPassword = 'myPfxPassword';
$success = $primaryCert->LoadPfxFile('qa_data/pfx/somePfx.p12',$pfxPassword);
if ($success == false) {
    print $primaryCert->lastErrorText() . "\n";
    exit;
}

// certChain is a CkCertChain
$certChain = $primaryCert->GetCertChain();
if ($primaryCert->get_LastMethodSuccess() == false) {
    print $primaryCert->lastErrorText() . "\n";
    exit;
}

// If the certificate chain reaches the root CA cert, then the last cert in the chain
// is the root CA cert.
$chainReachesRoot = $certChain->get_ReachesRoot();
if ($chainReachesRoot == true) {
    print 'The certificate chain reaches the root CA cert.' . "\n";
}

$i = 0;
$numCerts = $certChain->get_NumCerts();
while ($i < $numCerts) {
    // cert is a CkCert
    $cert = $certChain->GetCert($i);
    print 'SubjectDN ' . $i . ': ' . $cert->subjectDN() . "\n";
    print 'IssuerDN ' . $i . ': ' . $cert->issuerDN() . "\n";
    print '--' . "\n";

    $i = $i + 1;
}

// The primary cert having the private key will be imported into the Current User "My" certificate store.
// Any intermediate root certificates will be imported into certificate store for intermediate certificate authorities.
// The root CA cert will be imported into the Root CA cert store.

// Let's open each of these 3 certificate stores..
$certStoreCU = new CkCertStore();
$certStoreCA = new CkCertStore();
$certStoreRootCA = new CkCertStore();
$readOnlyFlag = false;

// "CurrentUser" and "My" are the exact keywords to select your user account's certificate store.
$success = $certStoreCU->OpenWindowsStore('CurrentUser','My',$readOnlyFlag);
if ($success == false) {
    print 'Failed to open the CurrentUser/My certificate store for read/write.' . "\n";

    exit;
}

// Certificate store for intermediate certification authorities (CAs). 
$success = $certStoreCA->OpenWindowsStore('CurrentUser','CertificationAuthority',$readOnlyFlag);
if ($success == false) {
    print 'Failed to open the CurrentUser/CertificationAuthority certificate store for read/write.' . "\n";

    exit;
}

// Certificate store for trusted root certification authorities (CAs). 
$success = $certStoreRootCA->OpenWindowsStore('CurrentUser','Root',$readOnlyFlag);
if ($success == false) {
    print 'Failed to open the CurrentUser/Root certificate store for read/write.' . "\n";

    exit;
}

// Iterate over the certs in the chain and import each into the desired certificate store.
$allSuccess = true;
$i = 0;
while ($i < $numCerts) {
    // cert is a CkCert
    $cert = $certChain->GetCert($i);
    if ($i == 0) {
        // Import the primary certificate into the CurrentUser/My certificate store.
        $success = $certStoreCU->AddCertificate($cert);
        if ($success == false) {
            print $certStoreCU->lastErrorText() . "\n";
            $allSuccess = false;
        }

    }
    else {
        if (($i == ($numCerts - 1)) and ($chainReachesRoot == true)) {
            // Add the root CA certificate to the CurrentUser/Root certificate store.
            // (Your application can obviously choose whether this should be done or not.  Perhaps you prompt the user.)

            // Note: If the root CA cert is already present in the Windows certificate store, Windows will display
            // a dialog to ask if it should be deleted.  Chilkat does not explicitly display dialogs.
            $success = $certStoreRootCA->AddCertificate($cert);
            if ($success == false) {
                print $certStoreRootCA->lastErrorText() . "\n";
                $allSuccess = false;
            }

        }
        else {
            // This is an intermediate CA certificate.
            $success = $certStoreCA->AddCertificate($cert);
            if ($success == false) {
                print $certStoreCA->lastErrorText() . "\n";
                $allSuccess = false;
            }

        }

    }

    if ($success == false) {
        print 'Failed to import certificate.' . "\n";
    }

    $i = $i + 1;
}

print 'allSuccess = ' . $allSuccess . "\n";

?>