pygost/test_gost3410_vko.py

   1 # coding: utf-8
   2 # PyGOST -- Pure Python GOST cryptographic functions library
   3 # Copyright (C) 2015-2016 Sergey Matveev <stargrave@stargrave.org>
   4 #
   5 # This program is free software: you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation, either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 from os import urandom
  19 from unittest import TestCase
  20
  21 from pygost.gost3410 import CURVE_PARAMS
  22 from pygost.gost3410 import GOST3410Curve
  23 from pygost.gost3410 import prv_unmarshal
  24 from pygost.gost3410 import pub_unmarshal
  25 from pygost.gost3410 import public_key
  26 from pygost.gost3410_vko import kek_34102001
  27 from pygost.gost3410_vko import kek_34102012256
  28 from pygost.gost3410_vko import kek_34102012512
  29 from pygost.gost3410_vko import ukm_unmarshal
  30 from pygost.utils import bytes2long
  31 from pygost.utils import hexdec
  32
  33
  34 class TestVKO34102001(TestCase):
  35     def test_sequence(self):
  36         curve = GOST3410Curve(*CURVE_PARAMS["GostR3410_2001_TestParamSet"])
  37         for _ in range(10):
  38             ukm = ukm_unmarshal(urandom(8))
  39             prv1 = bytes2long(urandom(32))
  40             prv2 = bytes2long(urandom(32))
  41             pub1 = public_key(curve, prv1)
  42             pub2 = public_key(curve, prv2)
  43             kek1 = kek_34102001(curve, prv1, pub2, ukm)
  44             kek2 = kek_34102001(curve, prv2, pub1, ukm)
  45             self.assertEqual(kek1, kek2)
  46             kek1 = kek_34102001(curve, prv1, pub1, ukm)
  47             kek2 = kek_34102001(curve, prv2, pub2, ukm)
  48             self.assertNotEqual(kek1, kek2)
  49
  50
  51 class TestVKO34102012256(TestCase):
  52     """http://tc26.ru/methods/recommendation/%D0%A2%D0%9A26%D0%90%D0%9B%D0%93.pdf test vectors
  53     """
  54     def test_vector(self):
  55         curve = GOST3410Curve(*CURVE_PARAMS["GostR3410_2012_TC26_ParamSetA"])
  56         ukm = ukm_unmarshal(hexdec("1d80603c8544c727"))
  57         prvA = prv_unmarshal(hexdec("c990ecd972fce84ec4db022778f50fcac726f46708384b8d458304962d7147f8c2db41cef22c90b102f2968404f9b9be6d47c79692d81826b32b8daca43cb667"))
  58         pubA = pub_unmarshal(hexdec("aab0eda4abff21208d18799fb9a8556654ba783070eba10cb9abb253ec56dcf5d3ccba6192e464e6e5bcb6dea137792f2431f6c897eb1b3c0cc14327b1adc0a7914613a3074e363aedb204d38d3563971bd8758e878c9db11403721b48002d38461f92472d40ea92f9958c0ffa4c93756401b97f89fdbe0b5e46e4a4631cdb5a"), mode=2012)
  59         prvB = prv_unmarshal(hexdec("48c859f7b6f11585887cc05ec6ef1390cfea739b1a18c0d4662293ef63b79e3b8014070b44918590b4b996acfea4edfbbbcccc8c06edd8bf5bda92a51392d0db"))
  60         pubB = pub_unmarshal(hexdec("192fe183b9713a077253c72c8735de2ea42a3dbc66ea317838b65fa32523cd5efca974eda7c863f4954d1147f1f2b25c395fce1c129175e876d132e94ed5a65104883b414c9b592ec4dc84826f07d0b6d9006dda176ce48c391e3f97d102e03bb598bf132a228a45f7201aba08fc524a2d77e43a362ab022ad4028f75bde3b79"), mode=2012)
  61         vko = hexdec("c9a9a77320e2cc559ed72dce6f47e2192ccea95fa648670582c054c0ef36c221")
  62         self.assertEqual(kek_34102012256(curve, prvA, pubB, ukm), vko)
  63         self.assertEqual(kek_34102012256(curve, prvB, pubA, ukm), vko)
  64
  65     def test_sequence(self):
  66         curve = GOST3410Curve(*CURVE_PARAMS["GostR3410_2012_TC26_ParamSetA"])
  67         for _ in range(10):
  68             ukm = ukm_unmarshal(urandom(8))
  69             prv1 = bytes2long(urandom(32))
  70             prv2 = bytes2long(urandom(32))
  71             pub1 = public_key(curve, prv1)
  72             pub2 = public_key(curve, prv2)
  73             kek1 = kek_34102012256(curve, prv1, pub2, ukm)
  74             kek2 = kek_34102012256(curve, prv2, pub1, ukm)
  75             self.assertEqual(kek1, kek2)
  76             kek1 = kek_34102012256(curve, prv1, pub1, ukm)
  77             kek2 = kek_34102012256(curve, prv2, pub2, ukm)
  78             self.assertNotEqual(kek1, kek2)
  79
  80
  81 class TestVKO34102012512(TestCase):
  82     """http://tc26.ru/methods/recommendation/%D0%A2%D0%9A26%D0%90%D0%9B%D0%93.pdf test vectors
  83     """
  84     def test_vector(self):
  85         curve = GOST3410Curve(*CURVE_PARAMS["GostR3410_2012_TC26_ParamSetA"])
  86         ukm = ukm_unmarshal(hexdec("1d80603c8544c727"))
  87         prvA = prv_unmarshal(hexdec("c990ecd972fce84ec4db022778f50fcac726f46708384b8d458304962d7147f8c2db41cef22c90b102f2968404f9b9be6d47c79692d81826b32b8daca43cb667"))
  88         pubA = pub_unmarshal(hexdec("aab0eda4abff21208d18799fb9a8556654ba783070eba10cb9abb253ec56dcf5d3ccba6192e464e6e5bcb6dea137792f2431f6c897eb1b3c0cc14327b1adc0a7914613a3074e363aedb204d38d3563971bd8758e878c9db11403721b48002d38461f92472d40ea92f9958c0ffa4c93756401b97f89fdbe0b5e46e4a4631cdb5a"), mode=2012)
  89         prvB = prv_unmarshal(hexdec("48c859f7b6f11585887cc05ec6ef1390cfea739b1a18c0d4662293ef63b79e3b8014070b44918590b4b996acfea4edfbbbcccc8c06edd8bf5bda92a51392d0db"))
  90         pubB = pub_unmarshal(hexdec("192fe183b9713a077253c72c8735de2ea42a3dbc66ea317838b65fa32523cd5efca974eda7c863f4954d1147f1f2b25c395fce1c129175e876d132e94ed5a65104883b414c9b592ec4dc84826f07d0b6d9006dda176ce48c391e3f97d102e03bb598bf132a228a45f7201aba08fc524a2d77e43a362ab022ad4028f75bde3b79"), mode=2012)
  91         vko = hexdec("79f002a96940ce7bde3259a52e015297adaad84597a0d205b50e3e1719f97bfa7ee1d2661fa9979a5aa235b558a7e6d9f88f982dd63fc35a8ec0dd5e242d3bdf")
  92         self.assertEqual(kek_34102012512(curve, prvA, pubB, ukm), vko)
  93         self.assertEqual(kek_34102012512(curve, prvB, pubA, ukm), vko)
  94
  95     def test_sequence(self):
  96         curve = GOST3410Curve(*CURVE_PARAMS["GostR3410_2012_TC26_ParamSetA"])
  97         for _ in range(10):
  98             ukm = ukm_unmarshal(urandom(8))
  99             prv1 = bytes2long(urandom(32))
 100             prv2 = bytes2long(urandom(32))
 101             pub1 = public_key(curve, prv1)
 102             pub2 = public_key(curve, prv2)
 103             kek1 = kek_34102012512(curve, prv1, pub2, ukm)
 104             kek2 = kek_34102012512(curve, prv2, pub1, ukm)
 105             self.assertEqual(kek1, kek2)
 106             kek1 = kek_34102012512(curve, prv1, pub1, ukm)
 107             kek2 = kek_34102012512(curve, prv2, pub2, ukm)
 108             self.assertNotEqual(kek1, kek2)