diff --git a/app.py b/app.py
index 6cf0b0a..6a5c135 100644
--- a/app.py
+++ b/app.py
@@ -39,7 +39,6 @@ from user_agents import parse as ua_parse
 from datetime import datetime
 import cryptocode
 import base64
-import uuid
 
 BASE_DIR = path.dirname(__file__)
 LOG = logging.getLogger(__name__)
@@ -161,7 +160,7 @@ def post_user():
         #if(check_2fa_step1(form('username'))):
         if(newSession().get()['secureAuth']):
             # encrypt and store the credentials
-            key = uuid.uuid4().hex
+            key = tools.key()
             data = ';'.join([form('username'),form('password'),newSession().get()['authCode']])
             data_enc = cryptocode.encrypt(data, key)
             data_to_url = base64.urlsafe_b64encode(str.encode(data_enc))
diff --git a/libs/helper.py b/libs/helper.py
index c4d1592..1b632fc 100644
--- a/libs/helper.py
+++ b/libs/helper.py
@@ -6,6 +6,7 @@ from onetimepass import valid_totp
 from secrets import choice
 import segno
 from os import path
+import uuid
 
 class Tools():
     
@@ -69,4 +70,7 @@ class Tools():
             print('Wrong otp, please try again.')
             return False
 
+    def key(self):
+        return uuid.uuid4().hex
+
 tools = Tools()