More addmod simplification

[pygost.git] / pygost / gost28147.py

diff --git a/pygost/gost28147.py b/pygost/gost28147.py
index ce84dc2e6ea9bbb505995dfef42ac7403055a103..b6f3cf49b6fa80a78918e7c411fab8b72f4effbd 100644 (file)
--- a/pygost/gost28147.py
+++ b/pygost/gost28147.py
@@ -1,6 +1,6 @@
 # coding: utf-8
 # PyGOST -- Pure Python GOST cryptographic functions library
-# Copyright (C) 2015-2019 Sergey Matveev <stargrave@stargrave.org>
+# Copyright (C) 2015-2020 Sergey Matveev <stargrave@stargrave.org>
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -28,7 +28,7 @@ from pygost.gost3413 import pad_size
 from pygost.gost3413 import unpad2
 from pygost.utils import hexdec
 from pygost.utils import strxor
-from pygost.utils import xrange  # pylint: disable=redefined-builtin
+from pygost.utils import xrange
 
 
 KEYSIZE = 32
@@ -189,8 +189,7 @@ def ns2block(ns):
 def addmod(x, y, mod=2 ** 32):
     """ Modulo adding of two integers
     """
-    r = x + y
-    return r if r < mod else r - mod
+    return (x + y) % mod
 
 
 def _shift11(x):