1 files changed, 121 insertions, 0 deletions
diff --git a/vendor/phpseclib/phpseclib/phpseclib/Crypt/RSA/Formats/Keys/PuTTY.php b/vendor/phpseclib/phpseclib/phpseclib/Crypt/RSA/Formats/Keys/PuTTY.php
new file mode 100644
index 0000000..fe35717
--- /dev/null
+++ b/vendor/phpseclib/phpseclib/phpseclib/Crypt/RSA/Formats/Keys/PuTTY.php
@@ -0,0 +1,121 @@
+<?php
+
+/**
+ * PuTTY Formatted RSA Key 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\PuTTY as Progenitor;
+use phpseclib3\Math\BigInteger;
+
+/**
+ * PuTTY Formatted RSA Key Handler
+ *
+ * @author  Jim Wigginton <[email protected]>
+ */
+abstract class PuTTY extends Progenitor
+{
+    /**
+     * Public Handler
+     *
+     * @var string
+     */
+    const PUBLIC_HANDLER = 'phpseclib3\Crypt\RSA\Formats\Keys\OpenSSH';
+
+    /**
+     * Algorithm Identifier
+     *
+     * @var array
+     */
+    protected static $types = ['ssh-rsa'];
+
+    /**
+     * 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 = '')
+    {
+        static $one;
+        if (!isset($one)) {
+            $one = new BigInteger(1);
+        }
+
+        $components = parent::load($key, $password);
+        if (!isset($components['private'])) {
+            return $components;
+        }
+        extract($components);
+        unset($components['public'], $components['private']);
+
+        $isPublicKey = false;
+
+        $result = Strings::unpackSSH2('ii', $public);
+        if ($result === false) {
+            throw new \UnexpectedValueException('Key appears to be malformed');
+        }
+        list($publicExponent, $modulus) = $result;
+
+        $result = Strings::unpackSSH2('iiii', $private);
+        if ($result === false) {
+            throw new \UnexpectedValueException('Key appears to be malformed');
+        }
+        $primes = $coefficients = [];
+        list($privateExponent, $primes[1], $primes[2], $coefficients[2]) = $result;
+
+        $temp = $primes[1]->subtract($one);
+        $exponents = [1 => $publicExponent->modInverse($temp)];
+        $temp = $primes[2]->subtract($one);
+        $exponents[] = $publicExponent->modInverse($temp);
+
+        return compact('publicExponent', 'modulus', 'privateExponent', 'primes', 'coefficients', 'exponents', 'comment', 'isPublicKey');
+    }
+
+    /**
+     * 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('PuTTY does not support multi-prime RSA keys');
+        }
+
+        $public =  Strings::packSSH2('ii', $e, $n);
+        $private = Strings::packSSH2('iiii', $d, $primes[1], $primes[2], $coefficients[2]);
+
+        return self::wrapPrivateKey($public, $private, 'ssh-rsa', $password, $options);
+    }
+
+    /**
+     * Convert a public key to the appropriate format
+     *
+     * @param \phpseclib3\Math\BigInteger $n
+     * @param \phpseclib3\Math\BigInteger $e
+     * @return string
+     */
+    public static function savePublicKey(BigInteger $n, BigInteger $e)
+    {
+        return self::wrapPublicKey(Strings::packSSH2('ii', $e, $n), 'ssh-rsa');
+    }
+}