PHP Extension

PKCS11 Generate Secret Key (such as AES)

See more PKCS11 Examples

Generates a symmetric secret key such as AES on the HSM.

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

PHP Extension

<?php

include("chilkat.php");

$success = false;

// 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;
}

// Let's generate a 256-bit AES key on the token, which will exist for the duration of this session.
// Symmetric keys, such as AES keys, are typically created (or imported) and used during a single session.

// Other possible values for keyType are "AES XTS", "Blowfish", "Twofish", "ChaCha20", and others. 
// In virtually all cases, you'll want to create an AES key.
$keyType = 'AES';

// Specify attributes and abilities (how this key can be used) by providing a JSON template.
$json = new CkJsonObject();

// The key can be extracted or wrapped.
$json->UpdateBool('extractable',true);

// Allow the key to be used for encryption, decryption, wrapping other keys, and unwrapping other keys.
$json->UpdateBool('encrypt',true);
$json->UpdateBool('decrypt',true);
$json->UpdateBool('wrap',true);
$json->UpdateBool('unwrap',true);

// Indicate a 256-bit AES key is to be generated by setting the value_len attribute equal to the key size in bytes.
// (32 bytes * 8 bits/byte = 256 bits)
$json->UpdateInt('value_len',32);

$keyHandle = $pkcs11->GenSecretKey($keyType,$json);
if ($keyHandle == 0) {
    print $pkcs11->lastErrorText() . "\n";
    print 'Failed to generate an AES key.' . "\n";
}
else {
    print 'key handle = ' . $keyHandle . "\n";
    print 'Success.' . "\n";
}

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

?>