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<?php /** * Raw Signature Handler * * PHP version 5 * * Handles signatures as arrays * * @author Jim Wigginton <[email protected]> * @copyright 2016 Jim Wigginton * @license http://www.opensource.org/licenses/mit-license.html MIT License * @link http://phpseclib.sourceforge.net */ namespace phpseclib3\Crypt\Common\Formats\Signature; use phpseclib3\Math\BigInteger; /** * Raw Signature Handler * * @author Jim Wigginton <[email protected]> */ abstract class Raw { /** * Loads a signature * * @param array $sig * @return array|bool */ public static function load($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' => $sig['r'], 's' => $sig['s'] ]; } /** * Returns a signature in the appropriate format * * @param \phpseclib3\Math\BigInteger $r * @param \phpseclib3\Math\BigInteger $s * @return string */ public static function save(BigInteger $r, BigInteger $s) { return compact('r', 's'); } }