X-Git-Url: http://www.git.cypherpunks.ru/?a=blobdiff_plain;f=pygost%2Fgost28147.py;h=3d6705dbd1a2f542e2d2c07982ee1c2be0df38ab;hb=a8d1dde09ae1687872105cfa07801b33a27ebcc7;hp=01368f8b3e26475935e507821f999aac211a38fd;hpb=c36d50a5003f360ff22f93e286efd0f614523427;p=pygost.git

diff --git a/pygost/gost28147.py b/pygost/gost28147.py
index 01368f8..3d6705d 100644
--- a/pygost/gost28147.py
+++ b/pygost/gost28147.py
@@ -190,7 +190,7 @@ def addmod(x, y, mod=2 ** 32):
     """ Modulo adding of two integers
     """
     r = x + y
-    return r if r < mod else r - mod
+    return r if r < mod else r % mod
 
 
 def _shift11(x):