1 files changed, 142 insertions, 0 deletions
diff --git a/vendor/phpseclib/phpseclib/phpseclib/Crypt/RSA/Formats/Keys/JWK.php b/vendor/phpseclib/phpseclib/phpseclib/Crypt/RSA/Formats/Keys/JWK.php
new file mode 100644
index 0000000..87f543d
--- /dev/null
+++ b/vendor/phpseclib/phpseclib/phpseclib/Crypt/RSA/Formats/Keys/JWK.php
@@ -0,0 +1,142 @@
+<?php
+
+/**
+ * JSON Web Key (RFC7517) Formatted RSA Handler
+ *
+ * PHP version 5
+ *
+ * @author    Jim Wigginton <[email protected]>
+ * @copyright 2015 Jim Wigginton
+ * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
+ * @link      http://phpseclib.sourceforge.net
+ */
+
+namespace phpseclib3\Crypt\RSA\Formats\Keys;
+
+use phpseclib3\Common\Functions\Strings;
+use phpseclib3\Crypt\Common\Formats\Keys\JWK as Progenitor;
+use phpseclib3\Math\BigInteger;
+
+/**
+ * JWK Formatted RSA Handler
+ *
+ * @author  Jim Wigginton <[email protected]>
+ */
+abstract class JWK extends Progenitor
+{
+    /**
+     * Break a public or private key down into its constituent components
+     *
+     * @param string $key
+     * @param string $password optional
+     * @return array
+     */
+    public static function load($key, $password = '')
+    {
+        $key = parent::load($key, $password);
+
+        if ($key->kty != 'RSA') {
+            throw new \RuntimeException('Only RSA JWK keys are supported');
+        }
+
+        $count = $publicCount = 0;
+        $vars = ['n', 'e', 'd', 'p', 'q', 'dp', 'dq', 'qi'];
+        foreach ($vars as $var) {
+            if (!isset($key->$var) || !is_string($key->$var)) {
+                continue;
+            }
+            $count++;
+            $value = new BigInteger(Strings::base64url_decode($key->$var), 256);
+            switch ($var) {
+                case 'n':
+                    $publicCount++;
+                    $components['modulus'] = $value;
+                    break;
+                case 'e':
+                    $publicCount++;
+                    $components['publicExponent'] = $value;
+                    break;
+                case 'd':
+                    $components['privateExponent'] = $value;
+                    break;
+                case 'p':
+                    $components['primes'][1] = $value;
+                    break;
+                case 'q':
+                    $components['primes'][2] = $value;
+                    break;
+                case 'dp':
+                    $components['exponents'][1] = $value;
+                    break;
+                case 'dq':
+                    $components['exponents'][2] = $value;
+                    break;
+                case 'qi':
+                    $components['coefficients'][2] = $value;
+            }
+        }
+
+        if ($count == count($vars)) {
+            return $components + ['isPublicKey' => false];
+        }
+
+        if ($count == 2 && $publicCount == 2) {
+            return $components + ['isPublicKey' => true];
+        }
+
+        throw new \UnexpectedValueException('Key does not have an appropriate number of RSA parameters');
+    }
+
+    /**
+     * Convert a private key to the appropriate format.
+     *
+     * @param \phpseclib3\Math\BigInteger $n
+     * @param \phpseclib3\Math\BigInteger $e
+     * @param \phpseclib3\Math\BigInteger $d
+     * @param array $primes
+     * @param array $exponents
+     * @param array $coefficients
+     * @param string $password optional
+     * @param array $options optional
+     * @return string
+     */
+    public static function savePrivateKey(BigInteger $n, BigInteger $e, BigInteger $d, array $primes, array $exponents, array $coefficients, $password = '', array $options = [])
+    {
+        if (count($primes) != 2) {
+            throw new \InvalidArgumentException('JWK does not support multi-prime RSA keys');
+        }
+
+        $key = [
+            'kty' => 'RSA',
+            'n' => Strings::base64url_encode($n->toBytes()),
+            'e' => Strings::base64url_encode($e->toBytes()),
+            'd' => Strings::base64url_encode($d->toBytes()),
+            'p' => Strings::base64url_encode($primes[1]->toBytes()),
+            'q' => Strings::base64url_encode($primes[2]->toBytes()),
+            'dp' => Strings::base64url_encode($exponents[1]->toBytes()),
+            'dq' => Strings::base64url_encode($exponents[2]->toBytes()),
+            'qi' => Strings::base64url_encode($coefficients[2]->toBytes())
+        ];
+
+        return self::wrapKey($key, $options);
+    }
+
+    /**
+     * Convert a public key to the appropriate format
+     *
+     * @param \phpseclib3\Math\BigInteger $n
+     * @param \phpseclib3\Math\BigInteger $e
+     * @param array $options optional
+     * @return string
+     */
+    public static function savePublicKey(BigInteger $n, BigInteger $e, array $options = [])
+    {
+        $key = [
+            'kty' => 'RSA',
+            'n' => Strings::base64url_encode($n->toBytes()),
+            'e' => Strings::base64url_encode($e->toBytes())
+        ];
+
+        return self::wrapKey($key, $options);
+    }
+}