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<?php |
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declare(strict_types=1); |
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/* |
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* The MIT License (MIT) |
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* |
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* Copyright (c) 2014-2019 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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namespace Jose\Component\Signature\Algorithm; |
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use InvalidArgumentException; |
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use Jose\Component\Core\JWK; |
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use Jose\Component\Core\Util\RSAKey; |
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use Jose\Component\Signature\Algorithm\Util\RSA as JoseRSA; |
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use RuntimeException; |
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abstract class RSAPSS implements SignatureAlgorithm |
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{ |
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public function __construct() |
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{ |
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if (!\extension_loaded('gmp')) { |
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throw new RuntimeException(static::class.' requires gmp extension'); |
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} |
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} |
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public function allowedKeyTypes(): array |
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{ |
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return ['RSA']; |
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} |
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public function verify(JWK $key, string $input, string $signature): bool |
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{ |
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$this->checkKey($key); |
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$pub = RSAKey::createFromJWK($key->toPublic()); |
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return JoseRSA::verify($pub, $input, $signature, $this->getAlgorithm(), JoseRSA::SIGNATURE_PSS); |
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} |
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public function sign(JWK $key, string $input): string |
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{ |
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$this->checkKey($key); |
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if (!$key->has('d')) { |
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throw new InvalidArgumentException('The key is not a private key.'); |
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} |
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$priv = RSAKey::createFromJWK($key); |
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return JoseRSA::sign($priv, $input, $this->getAlgorithm(), JoseRSA::SIGNATURE_PSS); |
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} |
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abstract protected function getAlgorithm(): string; |
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private function checkKey(JWK $key): void |
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{ |
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if (!\in_array($key->get('kty'), $this->allowedKeyTypes(), true)) { |
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throw new InvalidArgumentException('Wrong key type.'); |
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} |
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foreach (['n', 'e'] as $k) { |
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if (!$key->has($k)) { |
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throw new InvalidArgumentException(sprintf('The key parameter "%s" is missing.', $k)); |
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} |
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} |
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} |
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} |
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web-token /
jwt-framework
