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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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