From 656fd4c0606046ae0ee27aaa58c3d235353d9840 Mon Sep 17 00:00:00 2001
From: Taylor Otwell <taylor@laravel.com>
Date: Mon, 3 Jul 2017 15:46:16 -0500
Subject: [PATCH] extract key generation

---
 Encrypter.php | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/Encrypter.php b/Encrypter.php
index 05c15e9..21f256d 100755
--- a/Encrypter.php
+++ b/Encrypter.php
@@ -59,6 +59,17 @@ public static function supported($key, $cipher)
                ($cipher === 'AES-256-CBC' && $length === 32);
     }
 
+    /**
+     * Create a new encryption key for the given cipher.
+     *
+     * @param  string  $cipher
+     * @return string
+     */
+    public static function generateKey($cipher)
+    {
+        return random_bytes($cipher == 'AES-128-CBC' ? 16 : 32);
+    }
+
     /**
      * Encrypt the given value.
      *