diff --git a/.client_test_3.py.swp b/.client_test_3.py.swp
new file mode 100644
index 0000000..4b5b6dd
Binary files /dev/null and b/.client_test_3.py.swp differ
diff --git a/README.md b/README.md
index 7297714..623e5bd 100644
--- a/README.md
+++ b/README.md
@@ -5,5 +5,9 @@
 * Generate keys 
 * Store generated keys 
 * Load stored keys from file 
-* If keys do not exist, create it  
+* If keys do not exist, create it 
+
+## Libs to install (PIP) 
+
+* fernet https://cryptography.io/en/latest/fernet/ 
  
diff --git a/client_test_3.py b/client_test_3.py
index 4c22173..26e9bd5 100644
--- a/client_test_3.py
+++ b/client_test_3.py
@@ -34,7 +34,7 @@ while MESSAGE != 'exit':
         got_pub_key_server = True  
         # Now we have the pub key of the server, we will send our pub key too 
         #encrypted_public_key = encrypt_msg(public_key_pem, public_key_server) 
-        encrypted_public_key = encrypt_msg(bytes("test123456789000000000000000000000000000iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii000", 'utf-8'), public_key_server) 
+        encrypted_public_key = encrypt_msg(bytes("test123456789000000000000000000000000000iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii000", 'utf-8'), public_key_server) 
         print("Server public key received")
         print("Sending current client public key [ ... ] ")
         tcpClientA.send(encrypted_public_key)