diff --git a/n2vc/utils.py b/n2vc/utils.py
index a661e05..286f0fc 100644
--- a/n2vc/utils.py
+++ b/n2vc/utils.py
@@ -16,6 +16,8 @@
 import re
 import binascii
 import yaml
+import string
+import secrets
 from enum import Enum
 from juju.machine import Machine
 from juju.application import Application
@@ -163,3 +165,15 @@
     application_name = parts[1]
     machine_id = parts[2]
     return model_name, application_name, machine_id
+
+
+def generate_random_alfanum_string(size: int) -> str:
+    """
+    Generate random alfa-numeric string with a size given by argument
+    :param size:
+    :return: random generated string
+    """
+
+    return "".join(
+        secrets.choice(string.ascii_letters + string.digits) for i in range(size)
+    )