/**
* Convert EC public key to PEM.
*
* @return PEM
*/
public function toPEM()
{
$curve_oid = CurveParameter::nameToOID($this->curveParameter()->value());
$x = ECConversion::octetsToNumber($this->XCoordinateParameter()->coordinateOctets());
$y = ECConversion::octetsToNumber($this->YCoordinateParameter()->coordinateOctets());
$ec = ECPublicKey::fromCoordinates($x, $y, $curve_oid);
return $ec->publicKeyInfo()->toPEM();
}
/**
* Convert EC private key to PEM.
*
* @return PEM
*/
public function toPEM()
{
$curve_oid = CurveParameter::nameToOID($this->curveParameter()->value());
$x = ECConversion::octetsToNumber($this->XCoordinateParameter()->coordinateOctets());
$y = ECConversion::octetsToNumber($this->YCoordinateParameter()->coordinateOctets());
$pubkey = ECPublicKey::fromCoordinates($x, $y, $curve_oid);
$priv = $this->ECCPrivateKeyParameter()->privateKeyOctets();
$ec = new ECPrivateKey($priv, $curve_oid, $pubkey->ECPoint());
return $ec->privateKeyInfo()->toPEM();
}