From 78634330de8474ff0aea030a5efd33df78cfe331 Mon Sep 17 00:00:00 2001
From: Alex Booker <alexbooker@fastmail.im>
Date: Fri, 14 Aug 2015 18:10:56 +0100
Subject: [PATCH] use secure random number generator

---
 js/passwordGenerator.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/js/passwordGenerator.js b/js/passwordGenerator.js
index e25e611f..6615d06f 100644
--- a/js/passwordGenerator.js
+++ b/js/passwordGenerator.js
@@ -1,6 +1,12 @@
 var passwordGenerator = (function() {
   var generateRandomNum = function (max) {
-    return Math.floor(Math.random() * max);
+    var array = new Uint8Array(1);
+    window.crypto.getRandomValues(array);
+    var range = max + 1;
+    var max_range = 256;
+    if (array[0] >= Math.floor(max_range / range) * range)
+        return generateRandomNum(max);
+    return (array[0] % range);
   };
 
   var generatePassword = function (options) {