X-Git-Url: http://www.git.cypherpunks.ru/?a=blobdiff_plain;f=pygost%2Fmgm.py;h=aabce95bbd04ad9504505352350cee8cff53179b;hb=refs%2Ftags%2F5.7;hp=49c478dc2619b5a00bc40de3e5c3dc5f4294453f;hpb=21b8b8f77caa2b719748ba28d36edba9e220d2a7;p=pygost.git

diff --git a/pygost/mgm.py b/pygost/mgm.py
index 49c478d..aabce95 100644
--- a/pygost/mgm.py
+++ b/pygost/mgm.py
@@ -58,7 +58,7 @@ class MGM(object):
         """
         if bs not in (8, 16):
             raise ValueError("Only 64/128-bit blocksizes allowed")
-        self.tag_size = bs if tag_size is None else bs
+        self.tag_size = bs if tag_size is None else tag_size
         if self.tag_size < 4 or self.tag_size > bs:
             raise ValueError("Invalid tag_size")
         self.encrypter = encrypter