1 files changed, 62 insertions, 0 deletions
diff --git a/vendor/web-token/jwt-signature-algorithm-rsa/RSA.php b/vendor/web-token/jwt-signature-algorithm-rsa/RSA.php
new file mode 100644
index 0000000..12a4445
--- /dev/null
+++ b/vendor/web-token/jwt-signature-algorithm-rsa/RSA.php
@@ -0,0 +1,62 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2014-2018 Spomky-Labs
+ *
+ * This software may be modified and distributed under the terms
+ * of the MIT license.  See the LICENSE file for details.
+ */
+
+namespace Jose\Component\Signature\Algorithm;
+
+use Jose\Component\Core\JWK;
+use Jose\Component\Core\Util\RSAKey;
+use Jose\Component\Signature\Util\RSA as JoseRSA;
+
+abstract class RSA implements SignatureAlgorithm
+{
+    abstract protected function getAlgorithm(): string;
+
+    abstract protected function getSignatureMethod(): int;
+
+    public function allowedKeyTypes(): array
+    {
+        return ['RSA'];
+    }
+
+    public function verify(JWK $key, string $input, string $signature): bool
+    {
+        $this->checkKey($key);
+        $pub = RSAKey::createFromJWK($key->toPublic());
+
+        return JoseRSA::verify($pub, $input, $signature, $this->getAlgorithm(), $this->getSignatureMethod());
+    }
+
+    public function sign(JWK $key, string $input): string
+    {
+        $this->checkKey($key);
+        if (!$key->has('d')) {
+            throw new \InvalidArgumentException('The key is not a private key.');
+        }
+
+        $priv = RSAKey::createFromJWK($key);
+
+        return JoseRSA::sign($priv, $input, $this->getAlgorithm(), $this->getSignatureMethod());
+    }
+
+    private function checkKey(JWK $key)
+    {
+        if (!\in_array($key->get('kty'), $this->allowedKeyTypes(), true)) {
+            throw new \InvalidArgumentException('Wrong key type.');
+        }
+        foreach (['n', 'e'] as $k) {
+            if (!$key->has($k)) {
+                throw new \InvalidArgumentException(\sprintf('The key parameter "%s" is missing.', $k));
+            }
+        }
+    }
+}