File Content: RSA.php <?php declare(strict_types=1); /* * The MIT License (MIT) * * Copyright (c) 2014-2021 Spomky-Labs * * This software may be modified and distributed under the terms * of the MIT license. See the LICENSE file for details. */ namespace Cose\Algorithm\Signature\RSA; use Assert\Assertion; use Cose\Algorithm\Signature\Signature; use Cose\Key\Key; use Cose\Key\RsaKey; use InvalidArgumentException; abstract class RSA implements Signature { public function sign(string $data, Key $key): string { $key = $this->handleKey($key); Assertion::true($key->isPrivate(), 'The key is not private'); if (false === openssl_sign($data, $signature, $key->asPem(), $this->getHashAlgorithm())) { throw new InvalidArgumentException('Unable to sign the data'); } return $signature; } public function verify(string $data, Key $key, string $signature): bool { $key = $this->handleKey($key); return 1 === openssl_verify($data, $signature, $key->asPem(), $this->getHashAlgorithm()); } abstract protected function getHashAlgorithm(): int; private function handleKey(Key $key): RsaKey { return new RsaKey($key->getData()); } } Submit