/**
* Convert password for AES-256 encryption mode
* @param $password (string) password
* @return string password
* @protected
* @since 5.9.006 (2010-10-19)
* @author Nicola Asuni
*/
protected function _fixAES256Password($password)
{
$psw = '';
// password to be returned
$psw_array = TCPDF_FONTS::utf8Bidi(TCPDF_FONTS::UTF8StringToArray($password, $this->isunicode, $this->CurrentFont), $password, $this->rtl, $this->isunicode, $this->CurrentFont);
foreach ($psw_array as $c) {
$psw .= TCPDF_FONTS::unichr($c, $this->isunicode);
}
return substr($psw, 0, 127);
}
