/**
* Return message signature
*
* @param string $value Message.
* @param int $timestamp Expire timestamp.
* @param null $salt Salt (if needed).
* @return string
* @throws ArgumentTypeException
*/
public function getSignature($value, $timestamp, $salt = null)
{
if (!is_string($value)) {
throw new ArgumentTypeException('value', 'string');
}
$timedValue = $this->pack(array($value, $timestamp));
return parent::getSignature($timedValue, $salt);
}
public static function getImageSignature($id, $width, $height)
{
$sign = new Signer();
return $sign->getSignature($id . '|' . (int) $width . 'x' . (int) $height, 'disk.image.size');
}
