public function Lockr::generateKey in Lockr 7.3

Generates a new random key.

Parameters

int $size:

Return value

string

File

vendor/lockr/lockr/src/Lockr.php, line 279

Class

Lockr

Namespace

Lockr

Code

public function generateKey($size = 256) {
  $query = <<<'EOQ'
query RandomKey($size: KeySize) {
    randomKey(size: $size)
}
EOQ;
  if ($size !== 256 && $size !== 192 && $size !== 128) {
    throw new \Exception("Invalid key size: {$size}");
  }
  $t0 = microtime(true);
  $data = $this->client
    ->query([
    'query' => $query,
    'variables' => [
      'size' => "AES{$size}",
    ],
  ]);
  $t1 = microtime(true);
  $this->client
    ->getStats()
    ->lockrCallCompleted('generate_key', $t1 - $t0);
  return base64_decode($data['randomKey']);
}