19 files changed, 1738 insertions, 0 deletions

diff --git a/vendor/web-token/jwt-key-mgmt/JKUFactory.php b/vendor/web-token/jwt-key-mgmt/JKUFactory.php
new file mode 100644
index 0000000..16d24bc
--- /dev/null
+++ b/vendor/web-token/jwt-key-mgmt/JKUFactory.php
@@ -0,0 +1,50 @@
+<?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\KeyManagement;
+
+use Http\Client\HttpClient;
+use Http\Message\RequestFactory;
+use Jose\Component\Core\Converter\JsonConverter;
+use Jose\Component\Core\JWKSet;
+
+class JKUFactory extends UrlKeySetFactory
+{
+    private $jsonConverter;
+
+    /**
+     * JKUFactory constructor.
+     */
+    public function __construct(?JsonConverter $jsonConverter, HttpClient $client, RequestFactory $requestFactory)
+    {
+        parent::__construct($client, $requestFactory);
+        $this->jsonConverter = $jsonConverter ?? new \Jose\Component\Core\Util\JsonConverter();
+    }
+
+    /**
+     * This method will try to fetch the url a retrieve the key set.
+     * Throws an exception in case of failure.
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function loadFromUrl(string $url, array $header = []): JWKSet
+    {
+        $content = $this->getContent($url, $header);
+        $data = $this->jsonConverter->decode($content);
+        if (!\is_array($data)) {
+            throw new \RuntimeException('Invalid content.');
+        }
+
+        return JWKSet::createFromKeyData($data);
+    }
+}
diff --git a/vendor/web-token/jwt-key-mgmt/JWKFactory.php b/vendor/web-token/jwt-key-mgmt/JWKFactory.php
new file mode 100644
index 0000000..3748938
--- /dev/null
+++ b/vendor/web-token/jwt-key-mgmt/JWKFactory.php
@@ -0,0 +1,304 @@
+<?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\KeyManagement;
+
+use Base64Url\Base64Url;
+use InvalidArgumentException;
+use Jose\Component\Core\JWK;
+use Jose\Component\Core\JWKSet;
+use Jose\Component\Core\Util\Ecc\Curve;
+use Jose\Component\Core\Util\ECKey;
+use Jose\Component\KeyManagement\KeyConverter\KeyConverter;
+use Jose\Component\KeyManagement\KeyConverter\RSAKey;
+use function openssl_pkey_get_details;
+use function openssl_pkey_new;
+use RuntimeException;
+
+class JWKFactory
+{
+    /**
+     * Creates a RSA key with the given key size and additional values.
+     *
+     * @param int   $size   The key size in bits
+     * @param array $values values to configure the key
+     */
+    public static function createRSAKey(int $size, array $values = []): JWK
+    {
+        if (0 !== $size % 8) {
+            throw new InvalidArgumentException('Invalid key size.');
+        }
+
+        if (512 > $size) {
+            throw new InvalidArgumentException('Key length is too short. It needs to be at least 512 bits.');
+        }
+
+        $key = openssl_pkey_new([
+            'private_key_bits' => $size,
+            'private_key_type' => OPENSSL_KEYTYPE_RSA,
+        ]);
+        $details = openssl_pkey_get_details($key);
+        \openssl_free_key($key);
+        $rsa = RSAKey::createFromKeyDetails($details['rsa']);
+        $values = \array_merge(
+            $values,
+            $rsa->toArray()
+        );
+
+        return new JWK($values);
+    }
+
+    /**
+     * Creates a EC key with the given curve and additional values.
+     *
+     * @param string $curve  The curve
+     * @param array  $values values to configure the key
+     */
+    public static function createECKey(string $curve, array $values = []): JWK
+    {
+        return ECKey::createECKey($curve, $values);
+    }
+
+    /**
+     * Creates a octet key with the given key size and additional values.
+     *
+     * @param int   $size   The key size in bits
+     * @param array $values values to configure the key
+     */
+    public static function createOctKey(int $size, array $values = []): JWK
+    {
+        if (0 !== $size % 8) {
+            throw new InvalidArgumentException('Invalid key size.');
+        }
+        $values = \array_merge(
+            $values,
+            [
+                'kty' => 'oct',
+                'k' => Base64Url::encode(\random_bytes($size / 8)),
+            ]
+        );
+
+        return new JWK($values);
+    }
+
+    /**
+     * Creates a OKP key with the given curve and additional values.
+     *
+     * @param string $curve  The curve
+     * @param array  $values values to configure the key
+     */
+    public static function createOKPKey(string $curve, array $values = []): JWK
+    {
+        switch ($curve) {
+            case 'X25519':
+                $keyPair = \sodium_crypto_box_keypair();
+                $secret = \sodium_crypto_box_secretkey($keyPair);
+                $x = \sodium_crypto_box_publickey($keyPair);
+
+                break;
+            case 'Ed25519':
+                $keyPair = \sodium_crypto_sign_keypair();
+                $secret = \sodium_crypto_sign_secretkey($keyPair);
+                $x = \sodium_crypto_sign_publickey($keyPair);
+
+                break;
+            default:
+                throw new InvalidArgumentException(\sprintf('Unsupported "%s" curve', $curve));
+        }
+        $secretLength = mb_strlen($secret, '8bit');
+        $d = mb_substr($secret, 0, -$secretLength / 2, '8bit');
+
+        $values = \array_merge(
+            $values,
+            [
+                'kty' => 'OKP',
+                'crv' => $curve,
+                'd' => Base64Url::encode($d),
+                'x' => Base64Url::encode($x),
+            ]
+        );
+
+        return new JWK($values);
+    }
+
+    /**
+     * Creates a none key with the given additional values.
+     * Please note that this key type is not pat of any specification.
+     * It is used to prevent the use of the "none" algorithm with other key types.
+     *
+     * @param array $values values to configure the key
+     */
+    public static function createNoneKey(array $values = []): JWK
+    {
+        $values = \array_merge(
+            $values,
+            [
+                'kty' => 'none',
+                'alg' => 'none',
+                'use' => 'sig',
+            ]
+        );
+
+        return new JWK($values);
+    }
+
+    /**
+     * Creates a key from a Json string.
+     *
+     * @return JWK|JWKSet
+     */
+    public static function createFromJsonObject(string $value)
+    {
+        $json = \json_decode($value, true);
+        if (!\is_array($json)) {
+            throw new InvalidArgumentException('Invalid key or key set.');
+        }
+
+        return self::createFromValues($json);
+    }
+
+    /**
+     * Creates a key or key set from the given input.
+     *
+     * @return JWK|JWKSet
+     */
+    public static function createFromValues(array $values)
+    {
+        if (\array_key_exists('keys', $values) && \is_array($values['keys'])) {
+            return JWKSet::createFromKeyData($values);
+        }
+
+        return new JWK($values);
+    }
+
+    /**
+     * This method create a JWK object using a shared secret.
+     */
+    public static function createFromSecret(string $secret, array $additional_values = []): JWK
+    {
+        $values = \array_merge(
+            $additional_values,
+            [
+                'kty' => 'oct',
+                'k' => Base64Url::encode($secret),
+            ]
+        );
+
+        return new JWK($values);
+    }
+
+    /**
+     * This method will try to load a X.509 certificate and convert it into a public key.
+     */
+    public static function createFromCertificateFile(string $file, array $additional_values = []): JWK
+    {
+        $values = KeyConverter::loadKeyFromCertificateFile($file);
+        $values = \array_merge($values, $additional_values);
+
+        return new JWK($values);
+    }
+
+    /**
+     * Extract a keyfrom a key set identified by the given index .
+     *
+     * @param int|string $index
+     */
+    public static function createFromKeySet(JWKSet $jwkset, $index): JWK
+    {
+        return $jwkset->get($index);
+    }
+
+    /**
+     * This method will try to load a PKCS#12 file and convert it into a public key.
+     *
+     * @throws \Exception
+     */
+    public static function createFromPKCS12CertificateFile(string $file, ?string $secret = '', array $additional_values = []): JWK
+    {
+        $res = \openssl_pkcs12_read(\file_get_contents($file), $certs, $secret);
+        if (false === $res || !\is_array($certs) || !\array_key_exists('pkey', $certs)) {
+            throw new RuntimeException('Unable to load the certificates.');
+        }
+
+        return self::createFromKey($certs['pkey'], null, $additional_values);
+    }
+
+    /**
+     * This method will try to convert a X.509 certificate into a public key.
+     */
+    public static function createFromCertificate(string $certificate, array $additional_values = []): JWK
+    {
+        $values = KeyConverter::loadKeyFromCertificate($certificate);
+        $values = \array_merge($values, $additional_values);
+
+        return new JWK($values);
+    }
+
+    /**
+     * This method will try to convert a X.509 certificate resource into a public key.
+     *
+     * @param resource $res
+     *
+     * @throws \Exception
+     */
+    public static function createFromX509Resource($res, array $additional_values = []): JWK
+    {
+        $values = KeyConverter::loadKeyFromX509Resource($res);
+        $values = \array_merge($values, $additional_values);
+
+        return new JWK($values);
+    }
+
+    /**
+     * This method will try to load and convert a key file into a JWK object.
+     * If the key is encrypted, the password must be set.
+     *
+     * @throws \Exception
+     */
+    public static function createFromKeyFile(string $file, ?string $password = null, array $additional_values = []): JWK
+    {
+        $values = KeyConverter::loadFromKeyFile($file, $password);
+        $values = \array_merge($values, $additional_values);
+
+        return new JWK($values);
+    }
+
+    /**
+     * This method will try to load and convert a key into a JWK object.
+     * If the key is encrypted, the password must be set.
+     *
+     * @throws \Exception
+     */
+    public static function createFromKey(string $key, ?string $password = null, array $additional_values = []): JWK
+    {
+        $values = KeyConverter::loadFromKey($key, $password);
+        $values = \array_merge($values, $additional_values);
+
+        return new JWK($values);
+    }
+
+    /**
+     * This method will try to load and convert a X.509 certificate chain into a public key.
+     *
+     * Be careful! The certificate chain is loaded, but it is NOT VERIFIED by any mean!
+     * It is mandatory to verify the root CA or intermediate  CA are trusted.
+     * If not done, it may lead to potential security issues.
+     */
+    public static function createFromX5C(array $x5c, array $additional_values = []): JWK
+    {
+        $values = KeyConverter::loadFromX5C($x5c);
+        $values = \array_merge($values, $additional_values);
+
+        return new JWK($values);
+    }
+}
diff --git a/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/AlgorithmAnalyzer.php b/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/AlgorithmAnalyzer.php
new file mode 100644
index 0000000..a7ebcad
--- /dev/null
+++ b/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/AlgorithmAnalyzer.php
@@ -0,0 +1,26 @@
+<?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\KeyManagement\KeyAnalyzer;
+
+use Jose\Component\Core\JWK;
+
+final class AlgorithmAnalyzer implements KeyAnalyzer
+{
+    public function analyze(JWK $jwk, MessageBag $bag)
+    {
+        if (!$jwk->has('alg')) {
+            $bag->add(Message::medium('The parameter "alg" should be added.'));
+        }
+    }
+}
diff --git a/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/KeyAnalyzer.php b/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/KeyAnalyzer.php
new file mode 100644
index 0000000..470b788
--- /dev/null
+++ b/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/KeyAnalyzer.php
@@ -0,0 +1,24 @@
+<?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\KeyManagement\KeyAnalyzer;
+
+use Jose\Component\Core\JWK;
+
+interface KeyAnalyzer
+{
+    /**
+     * This method will analyse the key and add messages to the message bag if needed.
+     */
+    public function analyze(JWK $jwk, MessageBag $bag);
+}
diff --git a/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/KeyAnalyzerManager.php b/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/KeyAnalyzerManager.php
new file mode 100644
index 0000000..2b8b4a9
--- /dev/null
+++ b/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/KeyAnalyzerManager.php
@@ -0,0 +1,50 @@
+<?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\KeyManagement\KeyAnalyzer;
+
+use Jose\Component\Core\JWK;
+
+class KeyAnalyzerManager
+{
+    /**
+     * @var KeyAnalyzer[]
+     */
+    private $analyzers = [];
+
+    /**
+     * Adds a Key Analyzer to the manager.
+     *
+     * @return KeyAnalyzerManager
+     */
+    public function add(KeyAnalyzer $analyzer): self
+    {
+        $this->analyzers[] = $analyzer;
+
+        return $this;
+    }
+
+    /**
+     * This method will analyze the JWK object using all analyzers.
+     * It returns a message bag that may contains messages.
+     */
+    public function analyze(JWK $jwk): MessageBag
+    {
+        $bag = new MessageBag();
+        foreach ($this->analyzers as $analyzer) {
+            $analyzer->analyze($jwk, $bag);
+        }
+
+        return $bag;
+    }
+}
diff --git a/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/KeyIdentifierAnalyzer.php b/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/KeyIdentifierAnalyzer.php
new file mode 100644
index 0000000..71acb70
--- /dev/null
+++ b/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/KeyIdentifierAnalyzer.php
@@ -0,0 +1,26 @@
+<?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\KeyManagement\KeyAnalyzer;
+
+use Jose\Component\Core\JWK;
+
+final class KeyIdentifierAnalyzer implements KeyAnalyzer
+{
+    public function analyze(JWK $jwk, MessageBag $bag)
+    {
+        if (!$jwk->has('kid')) {
+            $bag->add(Message::medium('The parameter "kid" should be added.'));
+        }
+    }
+}
diff --git a/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/Message.php b/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/Message.php
new file mode 100644
index 0000000..4baf868
--- /dev/null
+++ b/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/Message.php
@@ -0,0 +1,96 @@
+<?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\KeyManagement\KeyAnalyzer;
+
+class Message implements \JsonSerializable
+{
+    /**
+     * @var string
+     */
+    private $message;
+
+    /**
+     * @var string
+     */
+    private $severity;
+
+    public const SEVERITY_LOW = 'low';
+
+    public const SEVERITY_MEDIUM = 'medium';
+
+    public const SEVERITY_HIGH = 'high';
+
+    /**
+     * Message constructor.
+     */
+    private function __construct(string $message, string $severity)
+    {
+        $this->message = $message;
+        $this->severity = $severity;
+    }
+
+    /**
+     * Creates a message with severity=low.
+     *
+     * @return Message
+     */
+    public static function low(string $message): self
+    {
+        return new self($message, self::SEVERITY_LOW);
+    }
+
+    /**
+     * Creates a message with severity=medium.
+     *
+     * @return Message
+     */
+    public static function medium(string $message): self
+    {
+        return new self($message, self::SEVERITY_MEDIUM);
+    }
+
+    /**
+     * Creates a message with severity=high.
+     *
+     * @return Message
+     */
+    public static function high(string $message): self
+    {
+        return new self($message, self::SEVERITY_HIGH);
+    }
+
+    /**
+     * Returns the message.
+     */
+    public function getMessage(): string
+    {
+        return $this->message;
+    }
+
+    /**
+     * Returns the severity of the message.
+     */
+    public function getSeverity(): string
+    {
+        return $this->severity;
+    }
+
+    public function jsonSerialize()
+    {
+        return [
+            'message' => $this->message,
+            'severity' => $this->severity,
+        ];
+    }
+}
diff --git a/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/MessageBag.php b/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/MessageBag.php
new file mode 100644
index 0000000..b41795f
--- /dev/null
+++ b/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/MessageBag.php
@@ -0,0 +1,59 @@
+<?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\KeyManagement\KeyAnalyzer;
+
+class MessageBag implements \JsonSerializable, \IteratorAggregate, \Countable
+{
+    /**
+     * @var Message[]
+     */
+    private $messages = [];
+
+    /**
+     * Adds a message to the message bag.
+     *
+     * @return MessageBag
+     */
+    public function add(Message $message): self
+    {
+        $this->messages[] = $message;
+
+        return $this;
+    }
+
+    /**
+     * Returns all messages.
+     *
+     * @return Message[]
+     */
+    public function all(): array
+    {
+        return $this->messages;
+    }
+
+    public function jsonSerialize()
+    {
+        return \array_values($this->messages);
+    }
+
+    public function count()
+    {
+        return \count($this->messages);
+    }
+
+    public function getIterator()
+    {
+        return new \ArrayIterator($this->messages);
+    }
+}
diff --git a/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/NoneAnalyzer.php b/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/NoneAnalyzer.php
new file mode 100644
index 0000000..a293efd
--- /dev/null
+++ b/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/NoneAnalyzer.php
@@ -0,0 +1,28 @@
+<?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\KeyManagement\KeyAnalyzer;
+
+use Jose\Component\Core\JWK;
+
+final class NoneAnalyzer implements KeyAnalyzer
+{
+    public function analyze(JWK $jwk, MessageBag $bag)
+    {
+        if ('none' !== $jwk->get('kty')) {
+            return;
+        }
+
+        $bag->add(Message::high('This key is a meant to be used with the algorithm "none". This algorithm is not secured and should be used with care.'));
+    }
+}
diff --git a/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/OctAnalyzer.php b/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/OctAnalyzer.php
new file mode 100644
index 0000000..4c2d7c1
--- /dev/null
+++ b/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/OctAnalyzer.php
@@ -0,0 +1,50 @@
+<?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\KeyManagement\KeyAnalyzer;
+
+use Base64Url\Base64Url;
+use Jose\Component\Core\JWK;
+use ZxcvbnPhp\Zxcvbn;
+
+final class OctAnalyzer implements KeyAnalyzer
+{
+    public function analyze(JWK $jwk, MessageBag $bag)
+    {
+        if ('oct' !== $jwk->get('kty')) {
+            return;
+        }
+        $k = Base64Url::decode($jwk->get('k'));
+        $kLength = 8 * \mb_strlen($k, '8bit');
+        if ($kLength < 128) {
+            $bag->add(Message::high('The key length is less than 128 bits.'));
+        }
+
+        if (\class_exists(Zxcvbn::class)) {
+            $zxcvbn = new Zxcvbn();
+            $strength = $zxcvbn->passwordStrength($k);
+            switch (true) {
+                case $strength['score'] < 3:
+                    $bag->add(Message::high('The octet string is weak and easily guessable. Please change your key as soon as possible.'));
+
+                    break;
+                case 3 === $strength['score']:
+                    $bag->add(Message::medium('The octet string is safe, but a longer key is preferable.'));
+
+                    break;
+                default:
+                    break;
+            }
+        }
+    }
+}
diff --git a/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/RsaAnalyzer.php b/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/RsaAnalyzer.php
new file mode 100644
index 0000000..6274aa0
--- /dev/null
+++ b/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/RsaAnalyzer.php
@@ -0,0 +1,34 @@
+<?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\KeyManagement\KeyAnalyzer;
+
+use Base64Url\Base64Url;
+use Jose\Component\Core\JWK;
+
+final class RsaAnalyzer implements KeyAnalyzer
+{
+    public function analyze(JWK $jwk, MessageBag $bag)
+    {
+        if ('RSA' !== $jwk->get('kty')) {
+            return;
+        }
+        $n = 8 * \mb_strlen(Base64Url::decode($jwk->get('n')), '8bit');
+        if ($n < 2048) {
+            $bag->add(Message::high('The key length is less than 2048 bits.'));
+        }
+        if ($jwk->has('d') && (!$jwk->has('p') || !$jwk->has('q') || !$jwk->has('dp') || !$jwk->has('dq') || !$jwk->has('p') || !$jwk->has('qi'))) {
+            $bag->add(Message::medium('The key is a private RSA key, but Chinese Remainder Theorem primes are missing. These primes are not mandatory, but signatures and decryption processes are faster when available.'));
+        }
+    }
+}
diff --git a/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/UsageAnalyzer.php b/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/UsageAnalyzer.php
new file mode 100644
index 0000000..8cdfaf6
--- /dev/null
+++ b/vendor/web-token/jwt-key-mgmt/KeyAnalyzer/UsageAnalyzer.php
@@ -0,0 +1,31 @@
+<?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\KeyManagement\KeyAnalyzer;
+
+use Jose\Component\Core\JWK;
+
+final class UsageAnalyzer implements KeyAnalyzer
+{
+    public function analyze(JWK $jwk, MessageBag $bag)
+    {
+        if (!$jwk->has('use')) {
+            $bag->add(Message::medium('The parameter "use" should be added.'));
+        } elseif (!\in_array($jwk->get('use'), ['sig', 'enc'], true)) {
+            $bag->add(Message::high(\sprintf('The parameter "use" has an unsupported value "%s". Please use "sig" (signature) or "enc" (encryption).', $jwk->get('use'))));
+        }
+        if ($jwk->has('key_ops') && !\in_array($jwk->get('key_ops'), ['sign', 'verify', 'encrypt', 'decrypt', 'wrapKey', 'unwrapKey'], true)) {
+            $bag->add(Message::high(\sprintf('The parameter "key_ops" has an unsupported value "%s". Please use one of the following values: %s.', $jwk->get('use'), \implode(', ', ['verify', 'sign', 'encryp', 'decrypt', 'wrapKey', 'unwrapKey']))));
+        }
+    }
+}
diff --git a/vendor/web-token/jwt-key-mgmt/KeyConverter/ECKey.php b/vendor/web-token/jwt-key-mgmt/KeyConverter/ECKey.php
new file mode 100644
index 0000000..4ab0090
--- /dev/null
+++ b/vendor/web-token/jwt-key-mgmt/KeyConverter/ECKey.php
@@ -0,0 +1,273 @@
+<?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\KeyManagement\KeyConverter;
+
+use Base64Url\Base64Url;
+use FG\ASN1\ASNObject;
+use FG\ASN1\ExplicitlyTaggedObject;
+use FG\ASN1\Universal\BitString;
+use FG\ASN1\Universal\Integer;
+use FG\ASN1\Universal\ObjectIdentifier;
+use FG\ASN1\Universal\OctetString;
+use FG\ASN1\Universal\Sequence;
+
+/**
+ * @internal
+ */
+class ECKey
+{
+    /**
+     * @var array
+     */
+    private $values = [];
+
+    /**
+     * ECKey constructor.
+     */
+    private function __construct(array $data)
+    {
+        $this->loadJWK($data);
+    }
+
+    /**
+     * @return ECKey
+     */
+    public static function createFromPEM(string $pem): self
+    {
+        $data = self::loadPEM($pem);
+
+        return new self($data);
+    }
+
+    /**
+     * @throws \Exception
+     */
+    private static function loadPEM(string $data): array
+    {
+        $data = \base64_decode(\preg_replace('#-.*-|\r|\n#', '', $data), true);
+        $asnObject = ASNObject::fromBinary($data);
+
+        if (!$asnObject instanceof Sequence) {
+            throw new \InvalidArgumentException('Unable to load the key.');
+        }
+        $children = $asnObject->getChildren();
+        if (self::isPKCS8($children)) {
+            $children = self::loadPKCS8($children);
+        }
+
+        if (4 === \count($children)) {
+            return self::loadPrivatePEM($children);
+        }
+        if (2 === \count($children)) {
+            return self::loadPublicPEM($children);
+        }
+
+        throw new \Exception('Unable to load the key.');
+    }
+
+    /**
+     * @param ASNObject[] $children
+     */
+    private static function loadPKCS8(array $children): array
+    {
+        $binary = \hex2bin($children[2]->getContent());
+        $asnObject = ASNObject::fromBinary($binary);
+        if (!$asnObject instanceof Sequence) {
+            throw new \InvalidArgumentException('Unable to load the key.');
+        }
+
+        return $asnObject->getChildren();
+    }
+
+    /**
+     * @param ASNObject[] $children
+     */
+    private static function loadPublicPEM(array $children): array
+    {
+        if (!$children[0] instanceof Sequence) {
+            throw new \InvalidArgumentException('Unsupported key type.');
+        }
+
+        $sub = $children[0]->getChildren();
+        if (!$sub[0] instanceof ObjectIdentifier) {
+            throw new \InvalidArgumentException('Unsupported key type.');
+        }
+        if ('1.2.840.10045.2.1' !== $sub[0]->getContent()) {
+            throw new \InvalidArgumentException('Unsupported key type.');
+        }
+        if (!$sub[1] instanceof ObjectIdentifier) {
+            throw new \InvalidArgumentException('Unsupported key type.');
+        }
+        if (!$children[1] instanceof BitString) {
+            throw new \InvalidArgumentException('Unable to load the key.');
+        }
+
+        $bits = $children[1]->getContent();
+        $bits_length = \mb_strlen($bits, '8bit');
+        if ('04' !== \mb_substr($bits, 0, 2, '8bit')) {
+            throw new \InvalidArgumentException('Unsupported key type');
+        }
+
+        $values = ['kty' => 'EC'];
+        $values['crv'] = self::getCurve($sub[1]->getContent());
+        $values['x'] = Base64Url::encode(\hex2bin(\mb_substr($bits, 2, ($bits_length - 2) / 2, '8bit')));
+        $values['y'] = Base64Url::encode(\hex2bin(\mb_substr($bits, ($bits_length - 2) / 2 + 2, ($bits_length - 2) / 2, '8bit')));
+
+        return $values;
+    }
+
+    private static function getCurve(string $oid): string
+    {
+        $curves = self::getSupportedCurves();
+        $curve = \array_search($oid, $curves, true);
+        if (!\is_string($curve)) {
+            throw new \InvalidArgumentException('Unsupported OID.');
+        }
+
+        return $curve;
+    }
+
+    private static function getSupportedCurves(): array
+    {
+        return [
+            'P-256' => '1.2.840.10045.3.1.7',
+            'P-384' => '1.3.132.0.34',
+            'P-521' => '1.3.132.0.35',
+        ];
+    }
+
+    private static function verifyVersion(ASNObject $children)
+    {
+        if (!$children instanceof Integer || '1' !== $children->getContent()) {
+            throw new \InvalidArgumentException('Unable to load the key.');
+        }
+    }
+
+    private static function getXAndY(ASNObject $children, ?string &$x, ?string &$y)
+    {
+        if (!$children instanceof ExplicitlyTaggedObject || !\is_array($children->getContent())) {
+            throw new \InvalidArgumentException('Unable to load the key.');
+        }
+        if (!$children->getContent()[0] instanceof BitString) {
+            throw new \InvalidArgumentException('Unable to load the key.');
+        }
+
+        $bits = $children->getContent()[0]->getContent();
+        $bits_length = \mb_strlen($bits, '8bit');
+
+        if ('04' !== \mb_substr($bits, 0, 2, '8bit')) {
+            throw new \InvalidArgumentException('Unsupported key type');
+        }
+
+        $x = \mb_substr($bits, 2, ($bits_length - 2) / 2, '8bit');
+        $y = \mb_substr($bits, ($bits_length - 2) / 2 + 2, ($bits_length - 2) / 2, '8bit');
+    }
+
+    private static function getD(ASNObject $children): string
+    {
+        if (!$children instanceof OctetString) {
+            throw new \InvalidArgumentException('Unable to load the key.');
+        }
+
+        return $children->getContent();
+    }
+
+    private static function loadPrivatePEM(array $children): array
+    {
+        self::verifyVersion($children[0]);
+        $x = null;
+        $y = null;
+        $d = self::getD($children[1]);
+        self::getXAndY($children[3], $x, $y);
+
+        if (!$children[2] instanceof ExplicitlyTaggedObject || !\is_array($children[2]->getContent())) {
+            throw new \InvalidArgumentException('Unable to load the key.');
+        }
+        if (!$children[2]->getContent()[0] instanceof ObjectIdentifier) {
+            throw new \InvalidArgumentException('Unable to load the key.');
+        }
+
+        $curve = $children[2]->getContent()[0]->getContent();
+
+        $values = ['kty' => 'EC'];
+        $values['crv'] = self::getCurve($curve);
+        $values['d'] = Base64Url::encode(\hex2bin($d));
+        $values['x'] = Base64Url::encode(\hex2bin($x));
+        $values['y'] = Base64Url::encode(\hex2bin($y));
+
+        return $values;
+    }
+
+    /**
+     * @param ASNObject[] $children
+     */
+    private static function isPKCS8(array $children): bool
+    {
+        if (3 !== \count($children)) {
+            return false;
+        }
+
+        $classes = [0 => Integer::class, 1 => Sequence::class, 2 => OctetString::class];
+        foreach ($classes as $k => $class) {
+            if (!$children[$k] instanceof $class) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * @param ECKey $private
+     *
+     * @return ECKey
+     */
+    public static function toPublic(self $private): self
+    {
+        $data = $private->toArray();
+        if (\array_key_exists('d', $data)) {
+            unset($data['d']);
+        }
+
+        return new self($data);
+    }
+
+    /**
+     * @return array
+     */
+    public function toArray()
+    {
+        return $this->values;
+    }
+
+    private function loadJWK(array $jwk)
+    {
+        $keys = [
+            'kty' => 'The key parameter "kty" is missing.',
+            'crv' => 'Curve parameter is missing',
+            'x' => 'Point parameters are missing.',
+            'y' => 'Point parameters are missing.',
+        ];
+        foreach ($keys as $k => $v) {
+            if (!\array_key_exists($k, $jwk)) {
+                throw new \InvalidArgumentException($v);
+            }
+        }
+
+        if ('EC' !== $jwk['kty']) {
+            throw new \InvalidArgumentException('JWK is not an Elliptic Curve key.');
+        }
+        $this->values = $jwk;
+    }
+}
diff --git a/vendor/web-token/jwt-key-mgmt/KeyConverter/KeyConverter.php b/vendor/web-token/jwt-key-mgmt/KeyConverter/KeyConverter.php
new file mode 100644
index 0000000..17a5428
--- /dev/null
+++ b/vendor/web-token/jwt-key-mgmt/KeyConverter/KeyConverter.php
@@ -0,0 +1,256 @@
+<?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\KeyManagement\KeyConverter;
+
+use Base64Url\Base64Url;
+
+/**
+ * @internal
+ */
+class KeyConverter
+{
+    /**
+     * @throws \InvalidArgumentException
+     */
+    public static function loadKeyFromCertificateFile(string $file): array
+    {
+        if (!\file_exists($file)) {
+            throw new \InvalidArgumentException(\sprintf('File "%s" does not exist.', $file));
+        }
+        $content = \file_get_contents($file);
+
+        return self::loadKeyFromCertificate($content);
+    }
+
+    /**
+     * @throws \InvalidArgumentException
+     */
+    public static function loadKeyFromCertificate(string $certificate): array
+    {
+        try {
+            $res = \openssl_x509_read($certificate);
+        } catch (\Exception $e) {
+            $certificate = self::convertDerToPem($certificate);
+            $res = \openssl_x509_read($certificate);
+        }
+        if (false === $res) {
+            throw new \InvalidArgumentException('Unable to load the certificate.');
+        }
+
+        $values = self::loadKeyFromX509Resource($res);
+        \openssl_x509_free($res);
+
+        return $values;
+    }
+
+    /**
+     * @param resource $res
+     *
+     * @throws \Exception
+     */
+    public static function loadKeyFromX509Resource($res): array
+    {
+        $key = \openssl_get_publickey($res);
+
+        $details = \openssl_pkey_get_details($key);
+        if (isset($details['key'])) {
+            $values = self::loadKeyFromPEM($details['key']);
+            \openssl_x509_export($res, $out);
+            $x5c = \preg_replace('#-.*-#', '', $out);
+            $x5c = \preg_replace('~\R~', PHP_EOL, $x5c);
+            $x5c = \trim($x5c);
+            $values['x5c'] = [$x5c];
+
+            $values['x5t'] = Base64Url::encode(\openssl_x509_fingerprint($res, 'sha1', true));
+            $values['x5t#256'] = Base64Url::encode(\openssl_x509_fingerprint($res, 'sha256', true));
+
+            return $values;
+        }
+
+        throw new \InvalidArgumentException('Unable to load the certificate');
+    }
+
+    /**
+     * @throws \Exception
+     */
+    public static function loadFromKeyFile(string $file, ?string $password = null): array
+    {
+        $content = \file_get_contents($file);
+
+        return self::loadFromKey($content, $password);
+    }
+
+    /**
+     * @throws \Exception
+     */
+    public static function loadFromKey(string $key, ?string $password = null): array
+    {
+        try {
+            return self::loadKeyFromDER($key, $password);
+        } catch (\Exception $e) {
+            return self::loadKeyFromPEM($key, $password);
+        }
+    }
+
+    /**
+     * @throws \Exception
+     */
+    private static function loadKeyFromDER(string $der, ?string $password = null): array
+    {
+        $pem = self::convertDerToPem($der);
+
+        return self::loadKeyFromPEM($pem, $password);
+    }
+
+    /**
+     * @throws \Exception
+     */
+    private static function loadKeyFromPEM(string $pem, ?string $password = null): array
+    {
+        if (\preg_match('#DEK-Info: (.+),(.+)#', $pem, $matches)) {
+            $pem = self::decodePem($pem, $matches, $password);
+        }
+
+        self::sanitizePEM($pem);
+
+        $res = \openssl_pkey_get_private($pem);
+        if (false === $res) {
+            $res = \openssl_pkey_get_public($pem);
+        }
+        if (false === $res) {
+            throw new \InvalidArgumentException('Unable to load the key.');
+        }
+
+        $details = \openssl_pkey_get_details($res);
+        if (!\is_array($details) || !\array_key_exists('type', $details)) {
+            throw new \InvalidArgumentException('Unable to get details of the key');
+        }
+
+        switch ($details['type']) {
+            case OPENSSL_KEYTYPE_EC:
+                $ec_key = ECKey::createFromPEM($pem);
+
+                return $ec_key->toArray();
+            case OPENSSL_KEYTYPE_RSA:
+                 $rsa_key = RSAKey::createFromPEM($pem);
+                $rsa_key->optimize();
+
+                 return $rsa_key->toArray();
+            default:
+                throw new \InvalidArgumentException('Unsupported key type');
+        }
+    }
+
+    /**
+     * This method modifies the PEM to get 64 char lines and fix bug with old OpenSSL versions.
+     */
+    private static function sanitizePEM(string &$pem)
+    {
+        \preg_match_all('#(-.*-)#', $pem, $matches, PREG_PATTERN_ORDER);
+        $ciphertext = \preg_replace('#-.*-|\r|\n| #', '', $pem);
+
+        $pem = $matches[0][0].PHP_EOL;
+        $pem .= \chunk_split($ciphertext, 64, PHP_EOL);
+        $pem .= $matches[0][1].PHP_EOL;
+    }
+
+    /**
+     * Be careful! The certificate chain is loaded, but it is NOT VERIFIED by any mean!
+     * It is mandatory to verify the root CA or intermediate  CA are trusted.
+     * If not done, it may lead to potential security issues.
+     */
+    public static function loadFromX5C(array $x5c): array
+    {
+        $certificate = null;
+        $last_issuer = null;
+        $last_subject = null;
+        foreach ($x5c as $cert) {
+            $current_cert = '-----BEGIN CERTIFICATE-----'.PHP_EOL.\chunk_split($cert,64,PHP_EOL).'-----END CERTIFICATE-----';
+            $x509 = \openssl_x509_read($current_cert);
+            if (false === $x509) {
+                $last_issuer = null;
+                $last_subject = null;
+
+                break;
+            }
+            $parsed = \openssl_x509_parse($x509);
+
+            \openssl_x509_free($x509);
+            if (false === $parsed) {
+                $last_issuer = null;
+                $last_subject = null;
+
+                break;
+            }
+            if (null === $last_subject) {
+                $last_subject = $parsed['subject'];
+                $last_issuer = $parsed['issuer'];
+                $certificate = $current_cert;
+            } else {
+                if (\json_encode($last_issuer) === \json_encode($parsed['subject'])) {
+                    $last_subject = $parsed['subject'];
+                    $last_issuer = $parsed['issuer'];
+                } else {
+                    $last_issuer = null;
+                    $last_subject = null;
+
+                    break;
+                }
+            }
+        }
+
+        return self::loadKeyFromCertificate($certificate);
+    }
+
+    /**
+     * @param string[] $matches
+     */
+    private static function decodePem(string $pem, array $matches, ?string $password = null): string
+    {
+        if (null === $password) {
+            throw new \InvalidArgumentException('Password required for encrypted keys.');
+        }
+
+        $iv = \pack('H*', \trim($matches[2]));
+        $iv_sub = \mb_substr($iv, 0, 8, '8bit');
+        $symkey = \pack('H*', \md5($password.$iv_sub));
+        $symkey .= \pack('H*', \md5($symkey.$password.$iv_sub));
+        $key = \preg_replace('#^(?:Proc-Type|DEK-Info): .*#m', '', $pem);
+        $ciphertext = \base64_decode(\preg_replace('#-.*-|\r|\n#', '', $key), true);
+
+        $decoded = \openssl_decrypt($ciphertext, \mb_strtolower($matches[1]), $symkey, OPENSSL_RAW_DATA, $iv);
+        if (!\is_string($decoded)) {
+            throw new \InvalidArgumentException('Incorrect password. Key decryption failed.');
+        }
+
+        $number = \preg_match_all('#-{5}.*-{5}#', $pem, $result);
+        if (2 !== $number) {
+            throw new \InvalidArgumentException('Unable to load the key');
+        }
+
+        $pem = $result[0][0].PHP_EOL;
+        $pem .= \chunk_split(\base64_encode($decoded), 64);
+        $pem .= $result[0][1].PHP_EOL;
+
+        return $pem;
+    }
+
+    private static function convertDerToPem(string $der_data): string
+    {
+        $pem = \chunk_split(\base64_encode($der_data), 64, PHP_EOL);
+        $pem = '-----BEGIN CERTIFICATE-----'.PHP_EOL.$pem.'-----END CERTIFICATE-----'.PHP_EOL;
+
+        return $pem;
+    }
+}
diff --git a/vendor/web-token/jwt-key-mgmt/KeyConverter/RSAKey.php b/vendor/web-token/jwt-key-mgmt/KeyConverter/RSAKey.php
new file mode 100644
index 0000000..f76b5d4
--- /dev/null
+++ b/vendor/web-token/jwt-key-mgmt/KeyConverter/RSAKey.php
@@ -0,0 +1,244 @@
+<?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\KeyManagement\KeyConverter;
+
+use Base64Url\Base64Url;
+use Jose\Component\Core\JWK;
+use Jose\Component\Core\Util\BigInteger;
+
+/**
+ * @internal
+ */
+class RSAKey
+{
+    /**
+     * @var array
+     */
+    private $values = [];
+
+    /**
+     * RSAKey constructor.
+     */
+    private function __construct(array $data)
+    {
+        $this->loadJWK($data);
+    }
+
+    /**
+     * @return RSAKey
+     */
+    public static function createFromKeyDetails(array $details): self
+    {
+        $values = ['kty' => 'RSA'];
+        $keys = [
+            'n' => 'n',
+            'e' => 'e',
+            'd' => 'd',
+            'p' => 'p',
+            'q' => 'q',
+            'dp' => 'dmp1',
+            'dq' => 'dmq1',
+            'qi' => 'iqmp',
+        ];
+        foreach ($details as $key => $value) {
+            if (\in_array($key, $keys, true)) {
+                $value = Base64Url::encode($value);
+                $values[\array_search($key, $keys, true)] = $value;
+            }
+        }
+
+        return new self($values);
+    }
+
+    /**
+     * @return RSAKey
+     */
+    public static function createFromPEM(string $pem): self
+    {
+        $res = \openssl_pkey_get_private($pem);
+        if (false === $res) {
+            $res = \openssl_pkey_get_public($pem);
+        }
+        if (false === $res) {
+            throw new \InvalidArgumentException('Unable to load the key.');
+        }
+
+        $details = \openssl_pkey_get_details($res);
+        \openssl_free_key($res);
+        if (!\array_key_exists('rsa', $details)) {
+            throw new \InvalidArgumentException('Unable to load the key.');
+        }
+
+        return self::createFromKeyDetails($details['rsa']);
+    }
+
+    /**
+     * @return RSAKey
+     */
+    public static function createFromJWK(JWK $jwk): self
+    {
+        return new self($jwk->all());
+    }
+
+    public function isPublic(): bool
+    {
+        return !\array_key_exists('d', $this->values);
+    }
+
+    /**
+     * @param RSAKey $private
+     *
+     * @return RSAKey
+     */
+    public static function toPublic(self $private): self
+    {
+        $data = $private->toArray();
+        $keys = ['p', 'd', 'q', 'dp', 'dq', 'qi'];
+        foreach ($keys as $key) {
+            if (\array_key_exists($key, $data)) {
+                unset($data[$key]);
+            }
+        }
+
+        return new self($data);
+    }
+
+    public function toArray(): array
+    {
+        return $this->values;
+    }
+
+    private function loadJWK(array $jwk)
+    {
+        if (!\array_key_exists('kty', $jwk)) {
+            throw new \InvalidArgumentException('The key parameter "kty" is missing.');
+        }
+        if ('RSA' !== $jwk['kty']) {
+            throw new \InvalidArgumentException('The JWK is not a RSA key.');
+        }
+
+        $this->values = $jwk;
+    }
+
+    public function toJwk(): JWK
+    {
+        return new JWK($this->values);
+    }
+
+    /**
+     * This method will try to add Chinese Remainder Theorem (CRT) parameters.
+     * With those primes, the decryption process is really fast.
+     */
+    public function optimize()
+    {
+        if (\array_key_exists('d', $this->values)) {
+            $this->populateCRT();
+        }
+    }
+
+    /**
+     * This method adds Chinese Remainder Theorem (CRT) parameters if primes 'p' and 'q' are available.
+     */
+    private function populateCRT()
+    {
+        if (!\array_key_exists('p', $this->values) && !\array_key_exists('q', $this->values)) {
+            $d = BigInteger::createFromBinaryString(Base64Url::decode($this->values['d']));
+            $e = BigInteger::createFromBinaryString(Base64Url::decode($this->values['e']));
+            $n = BigInteger::createFromBinaryString(Base64Url::decode($this->values['n']));
+
+            list($p, $q) = $this->findPrimeFactors($d, $e, $n);
+            $this->values['p'] = Base64Url::encode($p->toBytes());
+            $this->values['q'] = Base64Url::encode($q->toBytes());
+        }
+
+        if (\array_key_exists('dp', $this->values) && \array_key_exists('dq', $this->values) && \array_key_exists('qi', $this->values)) {
+            return;
+        }
+
+        $one = BigInteger::createFromDecimal(1);
+        $d = BigInteger::createFromBinaryString(Base64Url::decode($this->values['d']));
+        $p = BigInteger::createFromBinaryString(Base64Url::decode($this->values['p']));
+        $q = BigInteger::createFromBinaryString(Base64Url::decode($this->values['q']));
+
+        $this->values['dp'] = Base64Url::encode($d->mod($p->subtract($one))->toBytes());
+        $this->values['dq'] = Base64Url::encode($d->mod($q->subtract($one))->toBytes());
+        $this->values['qi'] = Base64Url::encode($q->modInverse($p)->toBytes());
+    }
+
+    /**
+     * @return BigInteger[]
+     */
+    private function findPrimeFactors(BigInteger $d, BigInteger $e, BigInteger $n): array
+    {
+        $zero = BigInteger::createFromDecimal(0);
+        $one = BigInteger::createFromDecimal(1);
+        $two = BigInteger::createFromDecimal(2);
+
+        $k = $d->multiply($e)->subtract($one);
+
+        if ($k->isEven()) {
+            $r = $k;
+            $t = $zero;
+
+            do {
+                $r = $r->divide($two);
+                $t = $t->add($one);
+            } while ($r->isEven());
+
+            $found = false;
+            $y = null;
+
+            for ($i = 1; $i <= 100; ++$i) {
+                $g = BigInteger::random($n->subtract($one));
+                $y = $g->modPow($r, $n);
+
+                if ($y->equals($one) || $y->equals($n->subtract($one))) {
+                    continue;
+                }
+
+                for ($j = $one; $j->lowerThan($t->subtract($one)); $j = $j->add($one)) {
+                    $x = $y->modPow($two, $n);
+
+                    if ($x->equals($one)) {
+                        $found = true;
+
+                        break;
+                    }
+
+                    if ($x->equals($n->subtract($one))) {
+                        continue;
+                    }
+
+                    $y = $x;
+                }
+
+                $x = $y->modPow($two, $n);
+                if ($x->equals($one)) {
+                    $found = true;
+
+                    break;
+                }
+            }
+
+            if (true === $found) {
+                $p = $y->subtract($one)->gcd($n);
+                $q = $n->divide($p);
+
+                return [$p, $q];
+            }
+        }
+
+        throw new \InvalidArgumentException('Unable to find prime factors.');
+    }
+}
diff --git a/vendor/web-token/jwt-key-mgmt/LICENSE b/vendor/web-token/jwt-key-mgmt/LICENSE
new file mode 100644
index 0000000..a098645
--- /dev/null
+++ b/vendor/web-token/jwt-key-mgmt/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014-2018 Spomky-Labs
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/vendor/web-token/jwt-key-mgmt/UrlKeySetFactory.php b/vendor/web-token/jwt-key-mgmt/UrlKeySetFactory.php
new file mode 100644
index 0000000..329a204
--- /dev/null
+++ b/vendor/web-token/jwt-key-mgmt/UrlKeySetFactory.php
@@ -0,0 +1,54 @@
+<?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\KeyManagement;
+
+use Http\Client\HttpClient;
+use Http\Message\RequestFactory;
+
+abstract class UrlKeySetFactory
+{
+    /**
+     * @var HttpClient
+     */
+    private $client;
+
+    /**
+     * @var RequestFactory
+     */
+    private $requestFactory;
+
+    /**
+     * UrlKeySetFactory constructor.
+     */
+    public function __construct(HttpClient $client, RequestFactory $requestFactory)
+    {
+        $this->client = $client;
+        $this->requestFactory = $requestFactory;
+    }
+
+    /**
+     * @throws \RuntimeException
+     */
+    protected function getContent(string $url, array $header = []): string
+    {
+        $request = $this->requestFactory->createRequest('GET', $url, $header);
+        $response = $this->client->sendRequest($request);
+
+        if ($response->getStatusCode() >= 400) {
+            throw new \RuntimeException('Unable to get the key set.', $response->getStatusCode());
+        }
+
+        return $response->getBody()->getContents();
+    }
+}
diff --git a/vendor/web-token/jwt-key-mgmt/X5UFactory.php b/vendor/web-token/jwt-key-mgmt/X5UFactory.php
new file mode 100644
index 0000000..1163b59
--- /dev/null
+++ b/vendor/web-token/jwt-key-mgmt/X5UFactory.php
@@ -0,0 +1,66 @@
+<?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\KeyManagement;
+
+use Http\Client\HttpClient;
+use Http\Message\RequestFactory;
+use Jose\Component\Core\Converter\JsonConverter;
+use Jose\Component\Core\JWK;
+use Jose\Component\Core\JWKSet;
+use Jose\Component\KeyManagement\KeyConverter\KeyConverter;
+
+class X5UFactory extends UrlKeySetFactory
+{
+    private $jsonConverter;
+
+    /**
+     * X5UFactory constructor.
+     */
+    public function __construct(?JsonConverter $jsonConverter, HttpClient $client, RequestFactory $requestFactory)
+    {
+        $this->jsonConverter = $jsonConverter ?? new \Jose\Component\Core\Util\JsonConverter();
+        parent::__construct($client, $requestFactory);
+    }
+
+    /**
+     * This method will try to fetch the url a retrieve the key set.
+     * Throws an exception in case of failure.
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function loadFromUrl(string $url, array $header = []): JWKSet
+    {
+        $content = $this->getContent($url, $header);
+        $data = $this->jsonConverter->decode($content);
+        if (!\is_array($data)) {
+            throw new \RuntimeException('Invalid content.');
+        }
+
+        $keys = [];
+        foreach ($data as $kid => $cert) {
+            if (false === \mb_strpos($cert, '-----BEGIN CERTIFICATE-----')) {
+                $cert = '-----BEGIN CERTIFICATE-----'.PHP_EOL.$cert.PHP_EOL.'-----END CERTIFICATE-----';
+            }
+            $jwk = KeyConverter::loadKeyFromCertificate($cert);
+            if (\is_string($kid)) {
+                $jwk['kid'] = $kid;
+                $keys[$kid] = new JWK($jwk);
+            } else {
+                $keys[] = new JWK($jwk);
+            }
+        }
+
+        return new JWKSet($keys);
+    }
+}
diff --git a/vendor/web-token/jwt-key-mgmt/composer.json b/vendor/web-token/jwt-key-mgmt/composer.json
new file mode 100644
index 0000000..d3999ad
--- /dev/null
+++ b/vendor/web-token/jwt-key-mgmt/composer.json
@@ -0,0 +1,46 @@
+{
+    "name": "web-token/jwt-key-mgmt",
+    "description": "Key Management component of the JWT Framework.",
+    "type": "library",
+    "license": "MIT",
+    "keywords": ["JWS", "JWT", "JWE", "JWA", "JWK", "JWKSet", "Jot", "Jose", "RFC7515", "RFC7516", "RFC7517", "RFC7518", "RFC7519", "RFC7520", "Bundle", "Symfony"],
+    "homepage": "https://github.com/web-token",
+    "authors": [
+        {
+            "name": "Florent Morselli",
+            "homepage": "https://github.com/Spomky"
+        },{
+            "name": "All contributors",
+            "homepage": "https://github.com/web-token/jwt-key-mgmt/contributors"
+        }
+    ],
+    "autoload": {
+        "psr-4": {
+            "Jose\\Component\\KeyManagement\\":  ""
+        }
+    },
+    "require": {
+        "lib-openssl": "*",
+        "paragonie/sodium_compat": "^1.2",
+        "web-token/jwt-core": "^1.3",
+        "web-token/jwt-util-ecc": "^1.3"
+    },
+    "require-dev": {
+        "php-http/message-factory": "^1.0",
+        "php-http/httplug": "^1.1",
+        "php-http/mock-client": "^1.0",
+        "phpunit/phpunit": "^6.0|^7.0"
+    },
+    "suggest": {
+        "php-http/message-factory": "To enable JKU/X5U support.",
+        "php-http/httplug": "To enable JKU/X5U support."
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "1.3.x-dev"
+        }
+    },
+    "config": {
+        "sort-packages": true
+    }
+}