/usr/lib/python3/dist-packages/Cryptodome/SelfTest/Util/test_strxor.py is in python3-pycryptodome 3.4.7-1ubuntu1.
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# SelfTest/Util/test_strxor.py: Self-test for XORing
#
# ===================================================================
#
# Copyright (c) 2014, Legrandin <helderijs@gmail.com>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
# ===================================================================
import unittest
from binascii import unhexlify, hexlify
from Cryptodome.Util.py3compat import *
from Cryptodome.SelfTest.st_common import list_test_cases
from Cryptodome.Util.strxor import strxor, strxor_c
class StrxorTests(unittest.TestCase):
def test1(self):
term1 = unhexlify(b("ff339a83e5cd4cdf5649"))
term2 = unhexlify(b("383d4ba020573314395b"))
result = unhexlify(b("c70ed123c59a7fcb6f12"))
self.assertEqual(strxor(term1, term2), result)
self.assertEqual(strxor(term2, term1), result)
def test2(self):
es = b("")
self.assertEqual(strxor(es, es), es)
def test3(self):
term1 = unhexlify(b("ff339a83e5cd4cdf5649"))
all_zeros = bchr(0) * len(term1)
self.assertEqual(strxor(term1, term1), all_zeros)
def test_wrong_length(self):
term1 = unhexlify(b("ff339a83e5cd4cdf5649"))
term2 = unhexlify(b("ff339a83e5cd4cdf564990"))
self.assertRaises(ValueError, strxor, term1, term2)
class Strxor_cTests(unittest.TestCase):
def test1(self):
term1 = unhexlify(b("ff339a83e5cd4cdf5649"))
result = unhexlify(b("be72dbc2a48c0d9e1708"))
self.assertEqual(strxor_c(term1, 65), result)
def test2(self):
term1 = unhexlify(b("ff339a83e5cd4cdf5649"))
self.assertEqual(strxor_c(term1, 0), term1)
def test3(self):
self.assertEqual(strxor_c(b(""), 90), b(""))
def test_wrong_range(self):
term1 = unhexlify(b("ff339a83e5cd4cdf5649"))
self.assertRaises(ValueError, strxor_c, term1, -1)
self.assertRaises(ValueError, strxor_c, term1, 256)
def get_tests(config={}):
tests = []
tests += list_test_cases(StrxorTests)
tests += list_test_cases(Strxor_cTests)
return tests
if __name__ == '__main__':
suite = lambda: unittest.TestSuite(get_tests())
unittest.main(defaultTest='suite')
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