diff --git a/bin/convert.js b/bin/convert.js
index d410f7a4..4302114c 100644
--- a/bin/convert.js
+++ b/bin/convert.js
@@ -4,6 +4,7 @@ var ueberDB = require("ueberDB");
 var mysql = require("mysql");
 var async = require("async");
 var Changeset = require("../node/utils/Changeset");
+var randomString = require("../node/utils/randomstring");
 var AttributePoolFactory = require("../node/utils/AttributePoolFactory");
 
 var settingsFile = process.argv[2];
@@ -450,18 +451,3 @@ function parsePage(array, pageStart, offsets, data, json)
     start+=unitLength;
   }
 }
-
-/**
- * Generates a random String with the given length. Is needed to generate the Author Ids
- */
-function randomString(len) 
-{
-  var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
-  var randomstring = '';
-  for (var i = 0; i < len; i++)
-  {
-    var rnum = Math.floor(Math.random() * chars.length);
-    randomstring += chars.substring(rnum, rnum + 1);
-  }
-  return randomstring;
-}
diff --git a/node/db/AuthorManager.js b/node/db/AuthorManager.js
index f4f42d11..7c054a56 100644
--- a/node/db/AuthorManager.js
+++ b/node/db/AuthorManager.js
@@ -22,6 +22,8 @@ var ERR = require("async-stacktrace");
 var db = require("./DB").db;
 var async = require("async");
 
+var randomString = require("../utils/randomstring");
+
 /**
  * Checks if the author exists
  */
@@ -177,18 +179,3 @@ exports.setAuthorName = function (author, name, callback)
 {
   db.setSub("globalAuthor:" + author, ["name"], name, callback);
 }
-
-/**
- * Generates a random String with the given length. Is needed to generate the Author Ids
- */
-function randomString(len) 
-{
-  var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
-  var randomstring = '';
-  for (var i = 0; i < len; i++)
-  {
-    var rnum = Math.floor(Math.random() * chars.length);
-    randomstring += chars.substring(rnum, rnum + 1);
-  }
-  return randomstring;
-}
diff --git a/node/db/GroupManager.js b/node/db/GroupManager.js
index 473ea9b7..7e3b7d6d 100644
--- a/node/db/GroupManager.js
+++ b/node/db/GroupManager.js
@@ -20,6 +20,7 @@
  
 var ERR = require("async-stacktrace");
 var customError = require("../utils/customError");
+var randomString = require("../utils/randomstring");
 var db = require("./DB").db;
 var async = require("async");
 var padManager = require("./PadManager");
@@ -255,18 +256,3 @@ exports.listPads = function(groupID, callback)
     }
   });
 }
-
-/**
- * Generates a random String with the given length. Is needed to generate the Author Ids
- */
-function randomString(len) 
-{
-  var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
-  var randomstring = '';
-  for (var i = 0; i < len; i++)
-  {
-    var rnum = Math.floor(Math.random() * chars.length);
-    randomstring += chars.substring(rnum, rnum + 1);
-  }
-  return randomstring;
-}
diff --git a/node/db/ReadOnlyManager.js b/node/db/ReadOnlyManager.js
index 73b3be9e..1e5079c5 100644
--- a/node/db/ReadOnlyManager.js
+++ b/node/db/ReadOnlyManager.js
@@ -22,6 +22,8 @@ var ERR = require("async-stacktrace");
 var db = require("./DB").db;
 var async = require("async");
 
+var randomString = require("../utils/randomstring");
+
 /**
  * returns a read only id for a pad
  * @param {String} padId the id of the pad
@@ -70,18 +72,3 @@ exports.getPadId = function(readOnlyId, callback)
 {
   db.get("readonly2pad:" + readOnlyId, callback);
 }
-
-/**
- * Generates a random String with the given length. Is needed to generate the read only ids
- */
-function randomString(len) 
-{
-  var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
-  var randomstring = '';
-  for (var i = 0; i < len; i++)
-  {
-    var rnum = Math.floor(Math.random() * chars.length);
-    randomstring += chars.substring(rnum, rnum + 1);
-  }
-  return randomstring;
-}
diff --git a/node/db/SecurityManager.js b/node/db/SecurityManager.js
index 52d5afcb..4b86d868 100644
--- a/node/db/SecurityManager.js
+++ b/node/db/SecurityManager.js
@@ -26,6 +26,8 @@ var padManager = require("./PadManager");
 var sessionManager = require("./SessionManager");
 var settings = require("../utils/Settings")
 
+var randomString = require("../utils/randomstring");
+
 /**
  * This function controlls the access to a pad, it checks if the user can access a pad.
  * @param padID the pad the user wants to access
diff --git a/node/db/SessionManager.js b/node/db/SessionManager.js
index a394f544..084d4a69 100644
--- a/node/db/SessionManager.js
+++ b/node/db/SessionManager.js
@@ -20,6 +20,7 @@
  
 var ERR = require("async-stacktrace");
 var customError = require("../utils/customError");
+var randomString = require("../utils/randomstring");
 var db = require("./DB").db;
 var async = require("async");
 var groupMangager = require("./GroupManager");
@@ -358,21 +359,6 @@ function listSessionsWithDBKey (dbkey, callback)
   });
 }
 
-/**
- * Generates a random String with the given length. Is needed to generate the SessionIDs
- */
-function randomString(len) 
-{
-  var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
-  var randomstring = '';
-  for (var i = 0; i < len; i++)
-  {
-    var rnum = Math.floor(Math.random() * chars.length);
-    randomstring += chars.substring(rnum, rnum + 1);
-  }
-  return randomstring;
-}
-
 //checks if a number is an int
 function is_int(value)
 { 
diff --git a/node/handler/APIHandler.js b/node/handler/APIHandler.js
index 0cd9cb58..ca45e1f8 100644
--- a/node/handler/APIHandler.js
+++ b/node/handler/APIHandler.js
@@ -22,6 +22,7 @@ var ERR = require("async-stacktrace");
 var fs = require("fs");
 var api = require("../db/API");
 var padManager = require("../db/PadManager");
+var randomString = require("../utils/randomstring");
 
 //ensure we have an apikey
 var apikey = null;
@@ -157,18 +158,3 @@ function callAPI(functionName, fields, req, res)
   //call the api function
   api[functionName](functionParams[0],functionParams[1],functionParams[2],functionParams[3],functionParams[4]);
 }
-
-/**
- * Generates a random String with the given length. Is needed to generate the Author Ids
- */
-function randomString(len) 
-{
-  var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
-  var randomstring = '';
-  for (var i = 0; i < len; i++)
-  {
-    var rnum = Math.floor(Math.random() * chars.length);
-    randomstring += chars.substring(rnum, rnum + 1);
-  }
-  return randomstring;
-}
diff --git a/node/utils/randomstring.js b/node/utils/randomstring.js
new file mode 100644
index 00000000..4c1bba24
--- /dev/null
+++ b/node/utils/randomstring.js
@@ -0,0 +1,16 @@
+/**
+ * Generates a random String with the given length. Is needed to generate the Author, Group, readonly, session Ids
+ */
+var randomString = function randomString(len)
+{
+  var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
+  var randomstring = '';
+  for (var i = 0; i < len; i++)
+  {
+    var rnum = Math.floor(Math.random() * chars.length);
+    randomstring += chars.substring(rnum, rnum + 1);
+  }
+  return randomstring;
+};
+
+module.exports = randomString;