pygost/test_gost3410_vko.py

   1 # coding: utf-8
   2 # PyGOST -- Pure Python GOST cryptographic functions library
   3 # Copyright (C) 2015-2020 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, version 3 of the License.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 from os import urandom
  18 from unittest import TestCase
  19
  20 from pygost.gost3410 import CURVES
  21 from pygost.gost3410 import prv_unmarshal
  22 from pygost.gost3410 import pub_unmarshal
  23 from pygost.gost3410 import public_key
  24 from pygost.gost3410_vko import kek_34102001
  25 from pygost.gost3410_vko import kek_34102012256
  26 from pygost.gost3410_vko import kek_34102012512
  27 from pygost.gost3410_vko import ukm_unmarshal
  28 from pygost.utils import bytes2long
  29 from pygost.utils import hexdec
  30
  31
  32 class TestVKO34102001(TestCase):
  33     def test_vector(self):
  34         curve = CURVES["id-GostR3410-2001-TestParamSet"]
  35         ukm = ukm_unmarshal(hexdec("5172be25f852a233"))
  36         prv1 = prv_unmarshal(hexdec("1df129e43dab345b68f6a852f4162dc69f36b2f84717d08755cc5c44150bf928"))
  37         prv2 = prv_unmarshal(hexdec("5b9356c6474f913f1e83885ea0edd5df1a43fd9d799d219093241157ac9ed473"))
  38         kek = hexdec("ee4618a0dbb10cb31777b4b86a53d9e7ef6cb3e400101410f0c0f2af46c494a6")
  39         pub1 = public_key(curve, prv1)
  40         pub2 = public_key(curve, prv2)
  41         self.assertSequenceEqual(kek_34102001(curve, prv1, pub2, ukm), kek)
  42         self.assertSequenceEqual(kek_34102001(curve, prv2, pub1, ukm), kek)
  43
  44     def test_sequence(self):
  45         curve = CURVES["id-GostR3410-2001-TestParamSet"]
  46         for _ in range(10):
  47             ukm = ukm_unmarshal(urandom(8))
  48             prv1 = bytes2long(urandom(32))
  49             prv2 = bytes2long(urandom(32))
  50             pub1 = public_key(curve, prv1)
  51             pub2 = public_key(curve, prv2)
  52             kek1 = kek_34102001(curve, prv1, pub2, ukm)
  53             kek2 = kek_34102001(curve, prv2, pub1, ukm)
  54             self.assertSequenceEqual(kek1, kek2)
  55             kek1 = kek_34102001(curve, prv1, pub1, ukm)
  56             kek2 = kek_34102001(curve, prv2, pub2, ukm)
  57             self.assertNotEqual(kek1, kek2)
  58
  59
  60 class TestVKO34102012256(TestCase):
  61     """RFC 7836
  62     """
  63     def test_vector(self):
  64         curve = CURVES["id-tc26-gost-3410-12-512-paramSetA"]
  65         ukm = ukm_unmarshal(hexdec("1d80603c8544c727"))
  66         prvA = prv_unmarshal(hexdec("c990ecd972fce84ec4db022778f50fcac726f46708384b8d458304962d7147f8c2db41cef22c90b102f2968404f9b9be6d47c79692d81826b32b8daca43cb667"))
  67         pubA = pub_unmarshal(hexdec("aab0eda4abff21208d18799fb9a8556654ba783070eba10cb9abb253ec56dcf5d3ccba6192e464e6e5bcb6dea137792f2431f6c897eb1b3c0cc14327b1adc0a7914613a3074e363aedb204d38d3563971bd8758e878c9db11403721b48002d38461f92472d40ea92f9958c0ffa4c93756401b97f89fdbe0b5e46e4a4631cdb5a"))
  68         prvB = prv_unmarshal(hexdec("48c859f7b6f11585887cc05ec6ef1390cfea739b1a18c0d4662293ef63b79e3b8014070b44918590b4b996acfea4edfbbbcccc8c06edd8bf5bda92a51392d0db"))
  69         pubB = pub_unmarshal(hexdec("192fe183b9713a077253c72c8735de2ea42a3dbc66ea317838b65fa32523cd5efca974eda7c863f4954d1147f1f2b25c395fce1c129175e876d132e94ed5a65104883b414c9b592ec4dc84826f07d0b6d9006dda176ce48c391e3f97d102e03bb598bf132a228a45f7201aba08fc524a2d77e43a362ab022ad4028f75bde3b79"))
  70         vko = hexdec("c9a9a77320e2cc559ed72dce6f47e2192ccea95fa648670582c054c0ef36c221")
  71         self.assertSequenceEqual(kek_34102012256(curve, prvA, pubB, ukm), vko)
  72         self.assertSequenceEqual(kek_34102012256(curve, prvB, pubA, ukm), vko)
  73
  74     def test_sequence(self):
  75         curve = CURVES["id-tc26-gost-3410-12-512-paramSetA"]
  76         for _ in range(10):
  77             ukm = ukm_unmarshal(urandom(8))
  78             prv1 = bytes2long(urandom(32))
  79             prv2 = bytes2long(urandom(32))
  80             pub1 = public_key(curve, prv1)
  81             pub2 = public_key(curve, prv2)
  82             kek1 = kek_34102012256(curve, prv1, pub2, ukm)
  83             kek2 = kek_34102012256(curve, prv2, pub1, ukm)
  84             self.assertSequenceEqual(kek1, kek2)
  85             kek1 = kek_34102012256(curve, prv1, pub1, ukm)
  86             kek2 = kek_34102012256(curve, prv2, pub2, ukm)
  87             self.assertNotEqual(kek1, kek2)
  88
  89
  90 class TestVKO34102012512(TestCase):
  91     """RFC 7836
  92     """
  93     def test_vector(self):
  94         curve = CURVES["id-tc26-gost-3410-12-512-paramSetA"]
  95         ukm = ukm_unmarshal(hexdec("1d80603c8544c727"))
  96         prvA = prv_unmarshal(hexdec("c990ecd972fce84ec4db022778f50fcac726f46708384b8d458304962d7147f8c2db41cef22c90b102f2968404f9b9be6d47c79692d81826b32b8daca43cb667"))
  97         pubA = pub_unmarshal(hexdec("aab0eda4abff21208d18799fb9a8556654ba783070eba10cb9abb253ec56dcf5d3ccba6192e464e6e5bcb6dea137792f2431f6c897eb1b3c0cc14327b1adc0a7914613a3074e363aedb204d38d3563971bd8758e878c9db11403721b48002d38461f92472d40ea92f9958c0ffa4c93756401b97f89fdbe0b5e46e4a4631cdb5a"))
  98         prvB = prv_unmarshal(hexdec("48c859f7b6f11585887cc05ec6ef1390cfea739b1a18c0d4662293ef63b79e3b8014070b44918590b4b996acfea4edfbbbcccc8c06edd8bf5bda92a51392d0db"))
  99         pubB = pub_unmarshal(hexdec("192fe183b9713a077253c72c8735de2ea42a3dbc66ea317838b65fa32523cd5efca974eda7c863f4954d1147f1f2b25c395fce1c129175e876d132e94ed5a65104883b414c9b592ec4dc84826f07d0b6d9006dda176ce48c391e3f97d102e03bb598bf132a228a45f7201aba08fc524a2d77e43a362ab022ad4028f75bde3b79"))
 100         vko = hexdec("79f002a96940ce7bde3259a52e015297adaad84597a0d205b50e3e1719f97bfa7ee1d2661fa9979a5aa235b558a7e6d9f88f982dd63fc35a8ec0dd5e242d3bdf")
 101         self.assertSequenceEqual(kek_34102012512(curve, prvA, pubB, ukm), vko)
 102         self.assertSequenceEqual(kek_34102012512(curve, prvB, pubA, ukm), vko)
 103
 104     def test_sequence(self):
 105         curve = CURVES["id-tc26-gost-3410-12-512-paramSetA"]
 106         for _ in range(10):
 107             ukm = ukm_unmarshal(urandom(8))
 108             prv1 = bytes2long(urandom(32))
 109             prv2 = bytes2long(urandom(32))
 110             pub1 = public_key(curve, prv1)
 111             pub2 = public_key(curve, prv2)
 112             kek1 = kek_34102012512(curve, prv1, pub2, ukm)
 113             kek2 = kek_34102012512(curve, prv2, pub1, ukm)
 114             self.assertSequenceEqual(kek1, kek2)
 115             kek1 = kek_34102012512(curve, prv1, pub1, ukm)
 116             kek2 = kek_34102012512(curve, prv2, pub2, ukm)
 117             self.assertNotEqual(kek1, kek2)