diff --git a/backend/common/utils/random.py b/backend/common/utils/random.py
new file mode 100644
index 0000000..879f422
--- /dev/null
+++ b/backend/common/utils/random.py
@@ -0,0 +1,6 @@
+import secrets
+import string
+
+def get_random_string(length=16):
+    alphabet = string.ascii_letters + string.digits
+    return ''.join(secrets.choice(alphabet) for _ in range(length))