echo "<tr><td>OpenSSL Library</td><td>" . (isset($versions['Library']) ? $versions['Library'] : 'Not found') . '</td></tr>';
echo "<tr><td>OpenSSL Header</td><td>" . (isset($versions['Header']) ? $versions['Header'] : 'Not found') . '</td></tr>';
$rsa = new \phpseclib\Crypt\RSA();
echo "<tr><td>CRYPT_RSA_MODE</td><td>" . (CRYPT_RSA_MODE == 1 ? 'MODE_INTERNAL' : 'MODE_OPENSSL') . '</td></tr>';
$rsa->setEncryptionMode(phpseclib\Crypt\RSA::ENCRYPTION_PKCS1);
$plaintext = 'Jorani is the best open source Leave Management System';
$rsa->loadKey($publicKey);
$ciphertext = $rsa->encrypt($plaintext);
$rsa->loadKey($privateKey, phpseclib\Crypt\RSA::PRIVATE_FORMAT_PKCS1);
$time_start = microtime(true);
echo "<tr><td>Decrypted message</td><td>" . $rsa->decrypt($ciphertext) . '</td></tr>';
$time_end = microtime(true);
$time = $time_end - $time_start;
echo "<tr><td>Decryption speed</td><td>" . $time . '</td></tr>';
//Generate public and private keys for a single usage
extract($rsa->createKey(KEY_SIZE));
?>
</tbody>
</table>
<h2 id="pair">Private and public key pair</h2>
<p>This section will help you to create <code>assets/keys/private.pem</code> and <code>assets/keys/public.pem</code> files.
Beware that is a pair of keys that must be set together (i.e. you must update the both files at the same time with the corresponding content).</p>
<h3>Private Key</h3>
<p>You can copy/paste the content below into <code>assets/keys/private.pem</code>.</p>
<div class="row-fluid">
<div class="span6">
/**
* Crea el par de claves pública y privada
*/
public function createKeys()
{
$Rsa = new \phpseclib\Crypt\RSA();
$keys = $Rsa->createKey(1024);
$priv = file_put_contents($this->getPrivateKeyFile(), $keys['privatekey']);
$pub = file_put_contents($this->getPublicKeyFile(), $keys['publickey']);
chmod($this->getPrivateKeyFile(), 0600);
return $priv && $pub;
}
/**
* @Route("/rsa/create",name="RSA_CREATE_KEY")
*/
function rsaCreateKeyAction()
{
$form = $this->createFormBuilder()->setMethod('POST')->setAction($this->generateUrl('RSA_CREATE_KEY'))->add('Length', 'number')->add('submit', 'submit')->getForm();
$request = $this->get('request');
$form->handleRequest($request);
if ($request->isXmlHttpRequest()) {
$length = intval($form['Length']->getData());
$rsa = new \phpseclib\Crypt\RSA();
$key = $rsa->createKey($length);
return new JsonResponse(array('public_key' => $key['publickey'], 'private_key' => $key['privatekey']));
}
if ($request->getMethod() == 'POST') {
$length = intval($form['Length']->getData());
$rsa = new \phpseclib\Crypt\RSA();
$key = $rsa->createKey($length);
return $this->render("@Assignment1Cryptography/Crypto/RSA/createkey.html.twig", array('form' => $form->createView(), 'key' => $key));
}
return $this->render("@Assignment1Cryptography/Crypto/RSA/createkey.html.twig", array('form' => $form->createView()));
}
/**
* this sets up the keys for said system
*/
static function setSessionKeys()
{
//if the user doesnt have a session create one
if (!Session::has('serverKeys')) {
//generate keypair for server
$rsa = new \phpseclib\Crypt\RSA();
$rsa->setEncryptionMode($rsa::ENCRYPTION_PKCS1);
$serverKeyPair = $rsa->createKey();
//save keys to session (encrypted on server)
Session::put('serverKeys', $serverKeyPair);
Session::put('serverPublic', $serverKeyPair['publickey']);
Session::put('serverPrivate', $serverKeyPair['privatekey']);
//generate random AES key
$key = md5((string) rand(1, 20000) . (string) rand(1, 20000) . (string) rand(1, 20000));
Session::put('serverAES', $key);
//static for now
}
}
<?php
require_once dirname(__FILE__) . '/../lib/openpgp.php';
require_once dirname(__FILE__) . '/../lib/openpgp_crypt_rsa.php';
$rsa = new \phpseclib\Crypt\RSA();
$k = $rsa->createKey(512);
$rsa->loadKey($k['privatekey']);
$nkey = new OpenPGP_SecretKeyPacket(array('n' => $rsa->modulus->toBytes(), 'e' => $rsa->publicExponent->toBytes(), 'd' => $rsa->exponent->toBytes(), 'p' => $rsa->primes[2]->toBytes(), 'q' => $rsa->primes[1]->toBytes(), 'u' => $rsa->coefficients[2]->toBytes()));
$uid = new OpenPGP_UserIDPacket('Test <*****@*****.**>');
$wkey = new OpenPGP_Crypt_RSA($nkey);
$m = $wkey->sign_key_userid(array($nkey, $uid));
// Serialize private key
print $m->to_bytes();
// Serialize public key message
$pubm = clone $m;
$pubm[0] = new OpenPGP_PublicKeyPacket($pubm[0]);
$public_bytes = $pubm->to_bytes();
<?php
include '../phpseclib/vendor/autoload.php';
$rsa = new \phpseclib\Crypt\RSA();
extract($rsa->createKey(2048));
$publickey->setHash('sha512');
$publickey->setMGFHash('sha512');
$privatekey->setHash('sha512');
$privatekey->setMGFHash('sha512');
$password = substr(base64_encode(openssl_random_pseudo_bytes(45)), 0, 32);
$privatekey->setPassword($password);
phpseclib\Crypt\RSA\PKCS1::setEncryptionAlgorithm('AES-256-CBC');
$fileprivate = fopen('private.pem', 'w');
fwrite($fileprivate, $privatekey->getPrivateKey('PKCS1'));
fclose($fileprivate);
$filepublic = fopen('public.pem', 'w');
fwrite($filepublic, $publickey->getPublicKey('PKCS1'));
fclose($filepublic);
echo 'Keys has been generated' . "\r\n";
echo 'Password is: ' . $password;
