(PHP Extension) PKCS11 Import an Existing RSA Public Key onto the HSM

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Demonstrates how to import an existing RSA Public Key onto a smart card or token.

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

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<?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.
$pin = '0000';
$userType = 1;
$success = $pkcs11->QuickSession($userType,$pin);
if ($success == false) {
    print $pkcs11->lastErrorText() . "\n";
    exit;
}

// Generate a new 2048-bit RSA key.
$rsa = new CkRsa();
$success = $rsa->GenerateKey(2048);
if ($success == false) {
    print $rsa->lastErrorText() . "\n";
    exit;
}

// Get the public key information as XML, so we can access the modulus and exponent.
$xml = new CkXml();
$xml->LoadXml($rsa->exportPublicKey());

$attrs = new CkJsonObject();
// Specify the type of object, and the type of key.
$attrs->UpdateString('class','CKO_PUBLIC_KEY');
$attrs->UpdateString('key_type','CKK_RSA');
// Add an optional label if desired.
$attrs->UpdateString('label','RSA Public Key 1');
// Allow the key to be use for verify, wrapping, and encryption operations.
$attrs->UpdateBool('verify',true);
$attrs->UpdateBool('wrap',true);
$attrs->UpdateBool('encrypt',true);

// Make this a session-only public key.
// To store the public key on the token so that it persists after the PKCS11 session, set token = true.
$attrs->UpdateBool('token',false);

// Provide the RSA public key material
$attrs->UpdateString('modulus',$xml->getChildContent('Modulus'));
$attrs->UpdateString('public_exponent',$xml->getChildContent('Exponent'));

// Create the RSA public key.
// Returns the PKCS11 object handle of the created key.
$objHandle = $pkcs11->CreatePkcs11Object($attrs);
if ($objHandle == 0) {
    print $pkcs11->lastErrorText() . "\n";
    print 'Failed.' . "\n";
}
else {
    print 'PKCS11 object handle = ' . $objHandle . "\n";
    print 'Successfully imported an RSA key..' . "\n";
}

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

?>