From f062ae0709f1977f713bd081af271e824ddfe588 Mon Sep 17 00:00:00 2001
From: Simon Kuhnle <simon@blarzwurst.de>
Date: Thu, 31 Oct 2019 21:38:12 +0100
Subject: [PATCH] NFC: Do not copy the default key

---
 heiko/nfc.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/heiko/nfc.py b/heiko/nfc.py
index bc471ba..f4c310a 100644
--- a/heiko/nfc.py
+++ b/heiko/nfc.py
@@ -13,7 +13,7 @@ def nfc_init():
 
 
 def nfc_detect():
-    key = DEFAULT_KEY.copy()
+    key = DEFAULT_KEY
     v, uid, ttype, dat = mnfc.read(1, 1, key, False)
     header = ""
     try:
@@ -28,7 +28,7 @@ def nfc_detect():
 
 def nfc_read(uid, key=None):
     if key is None:
-        key = DEFAULT_KEY.copy()
+        key = DEFAULT_KEY
     v, ruid, ttype, dat = mnfc.read(2, 14, key, False)
     if ruid == uid:
         return dat.decode().strip("\x00")
@@ -36,7 +36,7 @@ def nfc_read(uid, key=None):
 
 def nfc_write(uid, header, token, key=None):
     if key is None:
-        key = DEFAULT_KEY.copy()
+        key = DEFAULT_KEY
 
     secLen = 3 * 16
     hb = header.encode()