private static function get_openssl_key_details($key)
{
//PEM to DER
$lines = explode("\n", trim($key));
unset($lines[count($lines) - 1]);
unset($lines[0]);
$der = implode('', $lines);
$der = base64_decode($der);
//DER is in ASN.1 notation
$body = new CASNReader();
$body->Read($der);
$bodyItems = $body->GetSequence();
if (!empty($bodyItems)) {
if (is_object($bodyItems[1]) && is_object($bodyItems[2]) && is_object($bodyItems[3])) {
$n = $bodyItems[1]->GetValue();
$e = $bodyItems[2]->GetValue();
$d = $bodyItems[3]->GetValue();
return array("n" => $n, "e" => $e, "d" => $d);
} elseif (is_object($bodyItems[2])) {
$body = new CASNReader();
$body->Read($bodyItems[2]->GetValue());
$bodyItems = $body->GetSequence();
if (is_object($bodyItems[1]) && is_object($bodyItems[2]) && is_object($bodyItems[3])) {
$n = $bodyItems[1]->GetValue();
$e = $bodyItems[2]->GetValue();
$d = $bodyItems[3]->GetValue();
return array("n" => $n, "e" => $e, "d" => $d);
}
}
}
return false;
}
public function GetSequence()
{
$arResult = array();
$val = $this->value;
while ($val != '') {
$sequence = new CASNReader();
$sequence->Read($val);
$arResult[] = $sequence;
}
return $arResult;
}
