1 files changed, 146 insertions, 0 deletions
diff --git a/vendor/phpseclib/phpseclib/phpseclib/Crypt/DSA/Formats/Keys/PKCS8.php b/vendor/phpseclib/phpseclib/phpseclib/Crypt/DSA/Formats/Keys/PKCS8.php
new file mode 100644
index 0000000..004881e
--- /dev/null
+++ b/vendor/phpseclib/phpseclib/phpseclib/Crypt/DSA/Formats/Keys/PKCS8.php
@@ -0,0 +1,146 @@
+<?php
+
+/**
+ * PKCS#8 Formatted DSA Key Handler
+ *
+ * PHP version 5
+ *
+ * Processes keys with the following headers:
+ *
+ * -----BEGIN ENCRYPTED PRIVATE KEY-----
+ * -----BEGIN PRIVATE KEY-----
+ * -----BEGIN PUBLIC KEY-----
+ *
+ * Analogous to ssh-keygen's pkcs8 format (as specified by -m). Although PKCS8
+ * is specific to private keys it's basically creating a DER-encoded wrapper
+ * for keys. This just extends that same concept to public keys (much like ssh-keygen)
+ *
+ * @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\DSA\Formats\Keys;
+
+use phpseclib3\Crypt\Common\Formats\Keys\PKCS8 as Progenitor;
+use phpseclib3\File\ASN1;
+use phpseclib3\File\ASN1\Maps;
+use phpseclib3\Math\BigInteger;
+
+/**
+ * PKCS#8 Formatted DSA Key Handler
+ *
+ * @author  Jim Wigginton <[email protected]>
+ */
+abstract class PKCS8 extends Progenitor
+{
+    /**
+     * OID Name
+     *
+     * @var string
+     */
+    const OID_NAME = 'id-dsa';
+
+    /**
+     * OID Value
+     *
+     * @var string
+     */
+    const OID_VALUE = '1.2.840.10040.4.1';
+
+    /**
+     * Child OIDs loaded
+     *
+     * @var bool
+     */
+    protected static $childOIDsLoaded = false;
+
+    /**
+     * 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);
+
+        $type = isset($key['privateKey']) ? 'privateKey' : 'publicKey';
+
+        $decoded = ASN1::decodeBER($key[$type . 'Algorithm']['parameters']->element);
+        if (!$decoded) {
+            throw new \RuntimeException('Unable to decode BER of parameters');
+        }
+        $components = ASN1::asn1map($decoded[0], Maps\DSAParams::MAP);
+        if (!is_array($components)) {
+            throw new \RuntimeException('Unable to perform ASN1 mapping on parameters');
+        }
+
+        $decoded = ASN1::decodeBER($key[$type]);
+        if (empty($decoded)) {
+            throw new \RuntimeException('Unable to decode BER');
+        }
+
+        $var = $type == 'privateKey' ? 'x' : 'y';
+        $components[$var] = ASN1::asn1map($decoded[0], Maps\DSAPublicKey::MAP);
+        if (!$components[$var] instanceof BigInteger) {
+            throw new \RuntimeException('Unable to perform ASN1 mapping');
+        }
+
+        if (isset($key['meta'])) {
+            $components['meta'] = $key['meta'];
+        }
+
+        return $components;
+    }
+
+    /**
+     * Convert a private key to the appropriate format.
+     *
+     * @param \phpseclib3\Math\BigInteger $p
+     * @param \phpseclib3\Math\BigInteger $q
+     * @param \phpseclib3\Math\BigInteger $g
+     * @param \phpseclib3\Math\BigInteger $y
+     * @param \phpseclib3\Math\BigInteger $x
+     * @param string $password optional
+     * @param array $options optional
+     * @return string
+     */
+    public static function savePrivateKey(BigInteger $p, BigInteger $q, BigInteger $g, BigInteger $y, BigInteger $x, $password = '', array $options = [])
+    {
+        $params = [
+            'p' => $p,
+            'q' => $q,
+            'g' => $g
+        ];
+        $params = ASN1::encodeDER($params, Maps\DSAParams::MAP);
+        $params = new ASN1\Element($params);
+        $key = ASN1::encodeDER($x, Maps\DSAPublicKey::MAP);
+        return self::wrapPrivateKey($key, [], $params, $password, null, '', $options);
+    }
+
+    /**
+     * Convert a public key to the appropriate format
+     *
+     * @param \phpseclib3\Math\BigInteger $p
+     * @param \phpseclib3\Math\BigInteger $q
+     * @param \phpseclib3\Math\BigInteger $g
+     * @param \phpseclib3\Math\BigInteger $y
+     * @param array $options optional
+     * @return string
+     */
+    public static function savePublicKey(BigInteger $p, BigInteger $q, BigInteger $g, BigInteger $y, array $options = [])
+    {
+        $params = [
+            'p' => $p,
+            'q' => $q,
+            'g' => $g
+        ];
+        $params = ASN1::encodeDER($params, Maps\DSAParams::MAP);
+        $params = new ASN1\Element($params);
+        $key = ASN1::encodeDER($y, Maps\DSAPublicKey::MAP);
+        return self::wrapPublicKey($key, $params);
+    }
+}