From 01e26bf6c55579272dd2344abf0c51ef83f1ec39 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Torma=20Krist=C3=B3f?= <tormakristof@tormakristof.eu>
Date: Mon, 26 Apr 2021 21:52:29 +0200
Subject: [PATCH] better append to dict

---
 client/netwrapper.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/client/netwrapper.py b/client/netwrapper.py
index a4246dd..8671fd1 100644
--- a/client/netwrapper.py
+++ b/client/netwrapper.py
@@ -32,7 +32,8 @@ class NetWrapper:
         return encrypted_msg
 
     def signRSAHeader(self, type: str, extradata: dict) -> (bytes, bytes):
-        header = json.dumps({'type': type, 'source': self.network.own_addr}.update(extradata)).encode('UTF-8')
+        mandatory = {'type': type, 'source': self.network.own_addr}
+        header = json.dumps({**mandatory, **extradata}).encode('UTF-8')
         h = SHA512.new(header)
         headersignature = pkcs1_15.new(self.privateKey).sign(h)
         return header, headersignature