diff --git a/.client_test_3.py.swp b/.client_test_3.py.swp
deleted file mode 100644
index 4b5b6dd..0000000
Binary files a/.client_test_3.py.swp and /dev/null differ
diff --git a/utils/key.key b/utils/key.key
new file mode 100644
index 0000000..8551253
--- /dev/null
+++ b/utils/key.key
@@ -0,0 +1 @@
+c8Vo7OdLcNQJL2aDeLVepcGwOkXxnibd_BiOL6r42TM=
\ No newline at end of file
diff --git a/utils/symmetric_keys_manager_1.py b/utils/symmetric_keys_manager_1.py
new file mode 100644
index 0000000..029fe99
--- /dev/null
+++ b/utils/symmetric_keys_manager_1.py
@@ -0,0 +1,19 @@
+# Symmetric crypto lib
+from cryptography.fernet import Fernet
+
+key = Fernet.generate_key() 
+
+file = open('key.key', 'wb')
+file.write(key) # The key is type bytes still
+file.close() 
+
+message = "my deep dark secret".encode()
+
+f = Fernet(key)
+encrypted = f.encrypt(message)
+
+print(encrypted)
+
+decrypted = f.decrypt(encrypted) 
+
+print(decrypted)