diff --git a/libp2p/discovery/mdns/utils.py b/libp2p/discovery/mdns/utils.py
new file mode 100644
index 00000000..a341928d
--- /dev/null
+++ b/libp2p/discovery/mdns/utils.py
@@ -0,0 +1,11 @@
+import random
+import string
+
+def stringGen(len: int = 63) -> str:
+    """Generate a random string of lowercase letters and digits."""
+
+    charset = string.ascii_lowercase + string.digits
+    result = []
+    for _ in range(len):
+        result.append(random.choice(charset))
+    return ''.join(result)
\ No newline at end of file