diff --git a/makemessagelengths.py b/makemessagelengths.py
new file mode 100644
index 0000000..c8e103b
--- /dev/null
+++ b/makemessagelengths.py
@@ -0,0 +1,35 @@
+from twistednoise import genkeypair
+from noise.connection import NoiseConnection, Keypair
+
+server_key_pair = genkeypair()
+client_key_pair = genkeypair()
+
+init = NoiseConnection.from_name(b'Noise_XK_448_ChaChaPoly_SHA256')
+init.set_as_initiator()
+
+init.set_keypair_from_private_bytes(Keypair.STATIC, client_key_pair[1])
+init.set_keypair_from_public_bytes(Keypair.REMOTE_STATIC, server_key_pair[0])
+
+resp = NoiseConnection.from_name(b'Noise_XK_448_ChaChaPoly_SHA256')
+resp.set_as_responder()
+
+resp.set_keypair_from_private_bytes(Keypair.STATIC, server_key_pair[1])
+
+init.start_handshake()
+resp.start_handshake()
+
+messages = []
+
+cursend, currecv = init, resp
+while not init.handshake_finished and not resp.handshake_finished:
+	# send a message
+	msg = cursend.write_message()
+	currecv.read_message(msg)
+
+	# record it
+	messages.append(msg)
+
+	# swap roles
+	cursend, currecv = currecv, cursend
+
+print(list(map(len, messages)))