add methods to decrypt return data from router

[GitHub/Stricted/speedport-hybrid-php-api.git] / CryptLib / Key / Symmetric / Generator / Internal.php

diff --git a/CryptLib/Key/Symmetric/Generator/Internal.php b/CryptLib/Key/Symmetric/Generator/Internal.php
new file mode 100644 (file)
index 0000000..3c374b4
--- /dev/null
+++ b/CryptLib/Key/Symmetric/Generator/Internal.php
@@ -0,0 +1,59 @@
+<?php
+/**
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ * @version    Build @@version@@
+ */
+
+namespace CryptLib\Key\Symmetric\Generator;
+
+use CryptLib\Random\Factory    as RandomFactory;
+use CryptLib\Key\Factory       as KeyFactory;
+use CryptLib\Key\Symmetric\Raw as Raw;
+
+/**
+ * Description of mtrand
+ *
+ * @author ircmaxell
+ */
+class Internal implements \CryptLib\Key\Generator {
+
+    protected $kdf = null;
+
+    protected $random = null;
+
+    public static function test() {
+        return true;
+    }
+
+    public function __construct(array $options = array()) {
+        $options += array('kdf' => null, 'random' => null);
+        if (is_null($options['kdf'])) {
+            $factory        = new KeyFactory();
+            $options['kdf'] = $factory->getKdf('kdf3');
+        }
+        $this->kdf = $options['kdf'];
+        if (is_null($options['random'])) {
+            $options['random'] = new RandomFactory();
+        }
+        $this->random = $options['random'];
+    }
+
+    public function __toString() {
+    }
+
+    public function generate(
+        \CryptLib\Core\Strength $strength,
+        $size,
+        $passphrase = ''
+    ) {
+        $generator = $this->random->getGenerator($strength);
+        $seed      = $generator->generate($size);
+        $key       = $this->kdf->derive($seed, $size, $passphrase);
+        return new Raw(substr($key, 0, $size));
+    }
+
+    public function getType() {
+        return static::TYPE_SYMMETRIC;
+    }
+}