public function testSetSalt()
{
$salt = str_repeat('a', $this->blockCipher->getCipher()->getSaltSize() + 2);
$result = $this->blockCipher->setSalt($salt);
$this->assertEquals($result, $this->blockCipher);
$this->assertEquals(substr($salt, 0, $this->blockCipher->getCipher()->getSaltSize()), $this->blockCipher->getSalt());
$this->assertEquals($salt, $this->blockCipher->getOriginalSalt());
}
/**
* Encrypt using a keyrings
*
* @param string $plaintext
* @param array|string $keys
* @return string
* @throws RuntimeException
*/
public function encrypt($plaintext, $keys = null)
{
// generate a random session key
$sessionKey = Rand::getBytes($this->bCipher->getCipher()->getKeySize());
// encrypt the plaintext with blockcipher algorithm
$this->bCipher->setKey($sessionKey);
$ciphertext = $this->bCipher->encrypt($plaintext);
if (!is_array($keys)) {
$keys = ['' => $keys];
}
$encKeys = '';
// encrypt the session key with public keys
foreach ($keys as $id => $pubkey) {
if (!$pubkey instanceof PubKey && !is_string($pubkey)) {
throw new Exception\RuntimeException(sprintf("The public key must be a string in PEM format or an instance of %s", PubKey::class));
}
$pubkey = is_string($pubkey) ? new PubKey($pubkey) : $pubkey;
$encKeys .= sprintf("%s:%s:", base64_encode($id), base64_encode($this->rsa->encrypt($sessionKey, $pubkey)));
}
return $encKeys . ';' . $ciphertext;
}
public function testFactoryEmptyOptions()
{
$this->blockCipher = BlockCipher::factory('mcrypt');
$this->assertTrue($this->blockCipher->getCipher() instanceof Mcrypt);
}