Viewing file:  Ecdsa.php (1.52 KB) -rw-r--r--
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<?php
/**
* This file is part of Lcobucci\JWT, a simple library to handle JWT and JWS
*
* @license http://opensource.org/licenses/BSD-3-Clause BSD-3-Clause
*/
namespace Lcobucci\JWT\Signer;
use Lcobucci\JWT\Signer\Ecdsa\MultibyteStringConverter;
use Lcobucci\JWT\Signer\Ecdsa\SignatureConverter;
use const OPENSSL_KEYTYPE_EC;
/**
* Base class for ECDSA signers
*
* @author Luís Otávio Cobucci Oblonczyk <lcobucci@gmail.com>
* @since 2.1.0
*/
abstract class Ecdsa extends OpenSSL
{
/**
* @var SignatureConverter
*/
private $converter;
public function __construct(SignatureConverter $converter = null)
{
$this->converter = $converter ?: new MultibyteStringConverter();
}
/**
* {@inheritdoc}
*/
public function createHash($payload, Key $key)
{
return $this->converter->fromAsn1(
parent::createHash($payload, $key),
$this->getKeyLength()
);
}
/**
* {@inheritdoc}
*/
public function doVerify($expected, $payload, Key $key)
{
return parent::doVerify(
$this->converter->toAsn1($expected, $this->getKeyLength()),
$payload,
$key
);
}
/**
* Returns the length of each point in the signature, so that we can calculate and verify R and S points properly
*
* @internal
*/
abstract public function getKeyLength();
/**
* {@inheritdoc}
*/
final public function getKeyType()
{
return OPENSSL_KEYTYPE_EC;
}
}
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