* @copyright 2016 Jim Wigginton * @license http://www.opensource.org/licenses/mit-license.html MIT License * @link http://phpseclib.sourceforge.net */ namespace phpseclib\Crypt\Common\Signature; use phpseclib\Math\BigInteger; use phpseclib\Common\Functions\Strings; /** * Raw Signature Handler * * @package Common * @author Jim Wigginton * @access public */ abstract class Raw { /** * Loads a signature * * @access public * @param array $key * @return array */ public static function load($sig) { switch (true) { case !is_array($sig): case !isset($sig['r']) || !isset($sig['s']): case !$sig['r'] instanceof BigInteger: case !$sig['s'] instanceof BigInteger: return false; } return [ 'r' => $key['r'], 's' => $key['s'] ]; } /** * Returns a signature in the appropriate format * * @access public * @param \phpseclib\Math\BigInteger $r * @param \phpseclib\Math\BigInteger $s * @return string */ public static function save(BigInteger $r, BigInteger $s) { return compact('r', 's'); } }