X-Git-Url: http://www.git.cypherpunks.ru/?a=blobdiff_plain;f=pygost%2Fgost3413.py;h=32be5a33f33f6a628bf2aac239f15e160f6e1df7;hb=31b08d5a78505f0ae1a144e58d023d84eda2cc6e;hp=5aeaec63ef415091ae3de81b64facb57e0af62bd;hpb=7e5fe8586c0f17834a8df558b7ca86c5d7accd3e;p=pygost.git

diff --git a/pygost/gost3413.py b/pygost/gost3413.py
index 5aeaec6..32be5a3 100644
--- a/pygost/gost3413.py
+++ b/pygost/gost3413.py
@@ -13,7 +13,7 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
-""" GOST R 34.13-2015: Modes of operation for block ciphers
+"""GOST R 34.13-2015: Modes of operation for block ciphers
 
 This module currently includes only padding methods.
 """
@@ -274,7 +274,7 @@ Rb128 = 0b10000111
 
 def _mac_ks(encrypter, bs):
     Rb = Rb128 if bs == 16 else Rb64
-    _l = encrypter(bs * b'\x00')
+    _l = encrypter(bs * b"\x00")
     k1 = _mac_shift(bs, _l, Rb) if bytearray(_l)[0] & 0x80 > 0 else _mac_shift(bs, _l)
     k2 = _mac_shift(bs, k1, Rb) if bytearray(k1)[0] & 0x80 > 0 else _mac_shift(bs, k1)
     return k1, k2
@@ -294,7 +294,7 @@ def mac(encrypter, bs, data):
         tail_offset = len(data) - bs
     else:
         tail_offset = len(data) - (len(data) % bs)
-    prev = bs * b'\x00'
+    prev = bs * b"\x00"
     for i in xrange(0, tail_offset, bs):
         prev = encrypter(strxor(data[i:i + bs], prev))
     tail = data[tail_offset:]
@@ -337,7 +337,7 @@ def mac_acpkm_master(algo_class, encrypter, key_section_size, section_size, bs,
         tail_offset = len(data) - bs
     else:
         tail_offset = len(data) - (len(data) % bs)
-    prev = bs * b'\x00'
+    prev = bs * b"\x00"
     sections = len(data) // section_size
     if len(data) % section_size != 0:
         sections += 1