pygost/test_gost3410_vko.py

   1 # coding: utf-8
   2 # PyGOST -- Pure Python GOST cryptographic functions library
   3 # Copyright (C) 2015-2019 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 CURVES
  22 from pygost.gost3410 import prv_unmarshal
  23 from pygost.gost3410 import pub_unmarshal
  24 from pygost.gost3410 import public_key
  25 from pygost.gost3410_vko import kek_34102001
  26 from pygost.gost3410_vko import kek_34102012256
  27 from pygost.gost3410_vko import kek_34102012512
  28 from pygost.gost3410_vko import ukm_unmarshal
  29 from pygost.utils import bytes2long
  30 from pygost.utils import hexdec
  31
  32
  33 class TestVKO34102001(TestCase):
  34     def test_vector(self):
  35         curve = CURVES["id-GostR3410-2001-TestParamSet"]
  36         ukm = ukm_unmarshal(hexdec("5172be25f852a233"))
  37         prv1 = prv_unmarshal(hexdec("1df129e43dab345b68f6a852f4162dc69f36b2f84717d08755cc5c44150bf928"))
  38         prv2 = prv_unmarshal(hexdec("5b9356c6474f913f1e83885ea0edd5df1a43fd9d799d219093241157ac9ed473"))
  39         kek = hexdec("ee4618a0dbb10cb31777b4b86a53d9e7ef6cb3e400101410f0c0f2af46c494a6")
  40         pub1 = public_key(curve, prv1)
  41         pub2 = public_key(curve, prv2)
  42         self.assertSequenceEqual(kek_34102001(curve, prv1, pub2, ukm), kek)
  43         self.assertSequenceEqual(kek_34102001(curve, prv2, pub1, ukm), kek)
  44
  45     def test_sequence(self):
  46         curve = CURVES["id-GostR3410-2001-TestParamSet"]
  47         for _ in range(10):
  48             ukm = ukm_unmarshal(urandom(8))
  49             prv1 = bytes2long(urandom(32))
  50             prv2 = bytes2long(urandom(32))
  51             pub1 = public_key(curve, prv1)
  52             pub2 = public_key(curve, prv2)
  53             kek1 = kek_34102001(curve, prv1, pub2, ukm)
  54             kek2 = kek_34102001(curve, prv2, pub1, ukm)
  55             self.assertSequenceEqual(kek1, kek2)
  56             kek1 = kek_34102001(curve, prv1, pub1, ukm)
  57             kek2 = kek_34102001(curve, prv2, pub2, ukm)
  58             self.assertNotEqual(kek1, kek2)
  59
  60
  61 class TestVKO34102012256(TestCase):
  62     """RFC 7836
  63     """
  64     def test_vector(self):
  65         curve = CURVES["id-tc26-gost-3410-12-512-paramSetA"]
  66         ukm = ukm_unmarshal(hexdec("1d80603c8544c727"))
  67         prvA = prv_unmarshal(hexdec("c990ecd972fce84ec4db022778f50fcac726f46708384b8d458304962d7147f8c2db41cef22c90b102f2968404f9b9be6d47c79692d81826b32b8daca43cb667"))
  68         pubA = pub_unmarshal(hexdec("aab0eda4abff21208d18799fb9a8556654ba783070eba10cb9abb253ec56dcf5d3ccba6192e464e6e5bcb6dea137792f2431f6c897eb1b3c0cc14327b1adc0a7914613a3074e363aedb204d38d3563971bd8758e878c9db11403721b48002d38461f92472d40ea92f9958c0ffa4c93756401b97f89fdbe0b5e46e4a4631cdb5a"), mode=2012)
  69         prvB = prv_unmarshal(hexdec("48c859f7b6f11585887cc05ec6ef1390cfea739b1a18c0d4662293ef63b79e3b8014070b44918590b4b996acfea4edfbbbcccc8c06edd8bf5bda92a51392d0db"))
  70         pubB = pub_unmarshal(hexdec("192fe183b9713a077253c72c8735de2ea42a3dbc66ea317838b65fa32523cd5efca974eda7c863f4954d1147f1f2b25c395fce1c129175e876d132e94ed5a65104883b414c9b592ec4dc84826f07d0b6d9006dda176ce48c391e3f97d102e03bb598bf132a228a45f7201aba08fc524a2d77e43a362ab022ad4028f75bde3b79"), mode=2012)
  71         vko = hexdec("c9a9a77320e2cc559ed72dce6f47e2192ccea95fa648670582c054c0ef36c221")
  72         self.assertSequenceEqual(kek_34102012256(curve, prvA, pubB, ukm), vko)
  73         self.assertSequenceEqual(kek_34102012256(curve, prvB, pubA, ukm), vko)
  74
  75     def test_sequence(self):
  76         curve = CURVES["id-tc26-gost-3410-12-512-paramSetA"]
  77         for _ in range(10):
  78             ukm = ukm_unmarshal(urandom(8))
  79             prv1 = bytes2long(urandom(32))
  80             prv2 = bytes2long(urandom(32))
  81             pub1 = public_key(curve, prv1)
  82             pub2 = public_key(curve, prv2)
  83             kek1 = kek_34102012256(curve, prv1, pub2, ukm)
  84             kek2 = kek_34102012256(curve, prv2, pub1, ukm)
  85             self.assertSequenceEqual(kek1, kek2)
  86             kek1 = kek_34102012256(curve, prv1, pub1, ukm)
  87             kek2 = kek_34102012256(curve, prv2, pub2, ukm)
  88             self.assertNotEqual(kek1, kek2)
  89
  90
  91 class TestVKO34102012512(TestCase):
  92     """RFC 7836
  93     """
  94     def test_vector(self):
  95         curve = CURVES["id-tc26-gost-3410-12-512-paramSetA"]
  96         ukm = ukm_unmarshal(hexdec("1d80603c8544c727"))
  97         prvA = prv_unmarshal(hexdec("c990ecd972fce84ec4db022778f50fcac726f46708384b8d458304962d7147f8c2db41cef22c90b102f2968404f9b9be6d47c79692d81826b32b8daca43cb667"))
  98         pubA = pub_unmarshal(hexdec("aab0eda4abff21208d18799fb9a8556654ba783070eba10cb9abb253ec56dcf5d3ccba6192e464e6e5bcb6dea137792f2431f6c897eb1b3c0cc14327b1adc0a7914613a3074e363aedb204d38d3563971bd8758e878c9db11403721b48002d38461f92472d40ea92f9958c0ffa4c93756401b97f89fdbe0b5e46e4a4631cdb5a"), mode=2012)
  99         prvB = prv_unmarshal(hexdec("48c859f7b6f11585887cc05ec6ef1390cfea739b1a18c0d4662293ef63b79e3b8014070b44918590b4b996acfea4edfbbbcccc8c06edd8bf5bda92a51392d0db"))
 100         pubB = pub_unmarshal(hexdec("192fe183b9713a077253c72c8735de2ea42a3dbc66ea317838b65fa32523cd5efca974eda7c863f4954d1147f1f2b25c395fce1c129175e876d132e94ed5a65104883b414c9b592ec4dc84826f07d0b6d9006dda176ce48c391e3f97d102e03bb598bf132a228a45f7201aba08fc524a2d77e43a362ab022ad4028f75bde3b79"), mode=2012)
 101         vko = hexdec("79f002a96940ce7bde3259a52e015297adaad84597a0d205b50e3e1719f97bfa7ee1d2661fa9979a5aa235b558a7e6d9f88f982dd63fc35a8ec0dd5e242d3bdf")
 102         self.assertSequenceEqual(kek_34102012512(curve, prvA, pubB, ukm), vko)
 103         self.assertSequenceEqual(kek_34102012512(curve, prvB, pubA, ukm), vko)
 104
 105     def test_sequence(self):
 106         curve = CURVES["id-tc26-gost-3410-12-512-paramSetA"]
 107         for _ in range(10):
 108             ukm = ukm_unmarshal(urandom(8))
 109             prv1 = bytes2long(urandom(32))
 110             prv2 = bytes2long(urandom(32))
 111             pub1 = public_key(curve, prv1)
 112             pub2 = public_key(curve, prv2)
 113             kek1 = kek_34102012512(curve, prv1, pub2, ukm)
 114             kek2 = kek_34102012512(curve, prv2, pub1, ukm)
 115             self.assertSequenceEqual(kek1, kek2)
 116             kek1 = kek_34102012512(curve, prv1, pub1, ukm)
 117             kek2 = kek_34102012512(curve, prv2, pub2, ukm)
 118             self.assertNotEqual(kek1, kek2)