(PHP Extension) PKCS11 Export Public Key from HSM

See more PKCS11 Examples

Demonstrates how to export a public key from a smartcard or token.

Note: This example requires Chilkat v9.5.0.96 or later.

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

// Note: Chilkat's PKCS11 implementation runs on Windows, Linux, Mac OS X, and other supported operating systems.

$pkcs11 = new CkPkcs11();

// Use the PKCS11 driver (.dll, .so, .dylib) for your particular HSM.
// (The format of the path will change with the operating system.  Obviously, "C:/" is not used on non-Windows systems.
$pkcs11->put_SharedLibPath('C:/Program Files (x86)/Gemalto/IDGo 800 PKCS#11/IDPrimePKCS1164.dll');

// Establish a logged-on session. (We can typically skip the login by passing an empty PIN if only working with public keys)
// Use your actual PIN here, or an empty string to skip login.
$pin = '0000';
$userType = 1;
$success = $pkcs11->QuickSession($userType,$pin);
if ($success == false) {
    print $pkcs11->lastErrorText() . "\n";
    exit;
}

// Get the handle of the public key we wish to export.
// You can find public keys in many different ways.
// This example will search for a public key by label.

// Provide a template to find a PKCS11 object.
$jsonTemplate = new CkJsonObject();

// Find the public key with the label "Belgium eHealth".
$jsonTemplate->UpdateString('class','public_key');
$jsonTemplate->UpdateString('label','Belgium eHealth');

$pubKeyHandle = $pkcs11->FindObject($jsonTemplate);
if ($pubKeyHandle == 0) {
    print $pkcs11->lastErrorText() . "\n";
    exit;
}

// Export to a Chilkat public key object.
$pubKey = new CkPublicKey();
$success = $pkcs11->ExportPublicKey($pubKeyHandle,$pubKey);
if ($success == false) {
    print $pkcs11->lastErrorText() . "\n";
    exit;
}

// Get the public key as PKCS8 PEM.
print $pubKey->getPem(false) . "\n";

$pkcs11->Logout();
$pkcs11->CloseSession();

?>