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