/**
* Initialize private key from PEM.
*
* @param PEM $pem
* @throws \UnexpectedValueException
* @return self
*/
public static function fromPEM(PEM $pem)
{
switch ($pem->type()) {
case PEM::TYPE_RSA_PRIVATE_KEY:
return RSAPrivateKey::fromDER($pem->data());
case PEM::TYPE_EC_PRIVATE_KEY:
return ECPrivateKey::fromDER($pem->data());
case PEM::TYPE_PRIVATE_KEY:
return PrivateKeyInfo::fromDER($pem->data())->privateKey();
}
throw new \UnexpectedValueException("PEM type " . $pem->type() . " is not a valid private key.");
}
/**
*
* @see PublicKey::fromPEM()
* @param PEM $pem
* @throws \UnexpectedValueException
* @return self
*/
public static function fromPEM(PEM $pem)
{
if ($pem->type() == PEM::TYPE_RSA_PUBLIC_KEY) {
return self::fromDER($pem->data());
}
if ($pem->type() != PEM::TYPE_PUBLIC_KEY) {
throw new \UnexpectedValueException("Invalid PEM type.");
}
$pki = PublicKeyInfo::fromDER($pem->data());
if ($pki->algorithmIdentifier()->oid() != AlgorithmIdentifier::OID_RSA_ENCRYPTION) {
throw new \UnexpectedValueException("Not an RSA public key.");
}
return self::fromDER($pki->publicKeyData());
}
/**
* Initialize from PEM.
*
* @param PEM $pem
* @throws \UnexpectedValueException
* @return self
*/
public static function fromPEM(PEM $pem)
{
if ($pem->type() !== PEM::TYPE_ATTRIBUTE_CERTIFICATE) {
throw new \UnexpectedValueException("Invalid PEM type.");
}
return self::fromDER($pem->data());
}
/**
* Initialize from PEM.
*
* @param PEM $pem
* @throws \UnexpectedValueException
* @return self
*/
public static function fromPEM(PEM $pem)
{
if ($pem->type() != PEM::TYPE_PRIVATE_KEY) {
throw new \UnexpectedValueException("Invalid PEM type.");
}
return self::fromDER($pem->data());
}
/**
* Initialize public key from PEM.
*
* @param PEM $pem
* @throws \UnexpectedValueException
* @return self
*/
public static function fromPEM(PEM $pem)
{
switch ($pem->type()) {
case PEM::TYPE_RSA_PUBLIC_KEY:
return RSAPublicKey::fromDER($pem->data());
case PEM::TYPE_PUBLIC_KEY:
return PublicKeyInfo::fromPEM($pem)->publicKey();
}
throw new \UnexpectedValueException("PEM type " . $pem->type() . " is not a valid public key.");
}
/**
*
* @see PrivateKey::fromPEM()
* @param PEM $pem
* @throws \UnexpectedValueException
* @return self
*/
public static function fromPEM(PEM $pem)
{
if ($pem->type() == PEM::TYPE_EC_PRIVATE_KEY) {
return self::fromDER($pem->data());
}
if ($pem->type() != PEM::TYPE_PRIVATE_KEY) {
throw new \UnexpectedValueException("Not a private key.");
}
$pki = PrivateKeyInfo::fromDER($pem->data());
$algo = $pki->algorithmIdentifier();
if ($algo->oid() != AlgorithmIdentifier::OID_EC_PUBLIC_KEY) {
throw new \UnexpectedValueException("Not an elliptic curve key.");
}
$obj = self::fromDER($pki->privateKeyData());
if (!isset($obj->_namedCurve)) {
$obj->_namedCurve = $algo->namedCurve();
}
return $obj;
}
/**
*
* @see PublicKey::fromPEM()
* @param PEM $pem
* @throws \UnexpectedValueException
* @return self
*/
public static function fromPEM(PEM $pem)
{
if ($pem->type() != PEM::TYPE_PUBLIC_KEY) {
throw new \UnexpectedValueException("Not a public key.");
}
$pki = PublicKeyInfo::fromDER($pem->data());
$algo = $pki->algorithmIdentifier();
if ($algo->oid() != AlgorithmIdentifier::OID_EC_PUBLIC_KEY) {
throw new \UnexpectedValueException("Not an elliptic curve key.");
}
// ECPoint is directly mapped into public key data
return new self($pki->publicKeyData(), $algo->namedCurve());
}
