From 1dac2263372df2b85db5d029a45721fa158a5c9d Mon Sep 17 00:00:00 2001 From: xiubuzhe Date: Sun, 8 Oct 2023 20:59:00 +0800 Subject: first add files --- lib/Crypto/SelfTest/Util/test_strxor.py | 280 ++++++++++++++++++++++++++++++++ 1 file changed, 280 insertions(+) create mode 100644 lib/Crypto/SelfTest/Util/test_strxor.py (limited to 'lib/Crypto/SelfTest/Util/test_strxor.py') diff --git a/lib/Crypto/SelfTest/Util/test_strxor.py b/lib/Crypto/SelfTest/Util/test_strxor.py new file mode 100644 index 0000000..c91d38f --- /dev/null +++ b/lib/Crypto/SelfTest/Util/test_strxor.py @@ -0,0 +1,280 @@ +# +# SelfTest/Util/test_strxor.py: Self-test for XORing +# +# =================================================================== +# +# Copyright (c) 2014, Legrandin +# 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 Crypto.SelfTest.st_common import list_test_cases +from Crypto.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 = b"\x00" * 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) + + def test_bytearray(self): + term1 = unhexlify(b"ff339a83e5cd4cdf5649") + term1_ba = bytearray(term1) + term2 = unhexlify(b"383d4ba020573314395b") + result = unhexlify(b"c70ed123c59a7fcb6f12") + + self.assertEqual(strxor(term1_ba, term2), result) + + def test_memoryview(self): + term1 = unhexlify(b"ff339a83e5cd4cdf5649") + term1_mv = memoryview(term1) + term2 = unhexlify(b"383d4ba020573314395b") + result = unhexlify(b"c70ed123c59a7fcb6f12") + + self.assertEqual(strxor(term1_mv, term2), result) + + def test_output_bytearray(self): + """Verify result can be stored in pre-allocated memory""" + + term1 = unhexlify(b"ff339a83e5cd4cdf5649") + term2 = unhexlify(b"383d4ba020573314395b") + original_term1 = term1[:] + original_term2 = term2[:] + expected_xor = unhexlify(b"c70ed123c59a7fcb6f12") + output = bytearray(len(term1)) + + result = strxor(term1, term2, output=output) + + self.assertEqual(result, None) + self.assertEqual(output, expected_xor) + self.assertEqual(term1, original_term1) + self.assertEqual(term2, original_term2) + + def test_output_memoryview(self): + """Verify result can be stored in pre-allocated memory""" + + term1 = unhexlify(b"ff339a83e5cd4cdf5649") + term2 = unhexlify(b"383d4ba020573314395b") + original_term1 = term1[:] + original_term2 = term2[:] + expected_xor = unhexlify(b"c70ed123c59a7fcb6f12") + output = memoryview(bytearray(len(term1))) + + result = strxor(term1, term2, output=output) + + self.assertEqual(result, None) + self.assertEqual(output, expected_xor) + self.assertEqual(term1, original_term1) + self.assertEqual(term2, original_term2) + + def test_output_overlapping_bytearray(self): + """Verify result can be stored in overlapping memory""" + + term1 = bytearray(unhexlify(b"ff339a83e5cd4cdf5649")) + term2 = unhexlify(b"383d4ba020573314395b") + original_term2 = term2[:] + expected_xor = unhexlify(b"c70ed123c59a7fcb6f12") + + result = strxor(term1, term2, output=term1) + + self.assertEqual(result, None) + self.assertEqual(term1, expected_xor) + self.assertEqual(term2, original_term2) + + def test_output_overlapping_memoryview(self): + """Verify result can be stored in overlapping memory""" + + term1 = memoryview(bytearray(unhexlify(b"ff339a83e5cd4cdf5649"))) + term2 = unhexlify(b"383d4ba020573314395b") + original_term2 = term2[:] + expected_xor = unhexlify(b"c70ed123c59a7fcb6f12") + + result = strxor(term1, term2, output=term1) + + self.assertEqual(result, None) + self.assertEqual(term1, expected_xor) + self.assertEqual(term2, original_term2) + + def test_output_ro_bytes(self): + """Verify result cannot be stored in read-only memory""" + + term1 = unhexlify(b"ff339a83e5cd4cdf5649") + term2 = unhexlify(b"383d4ba020573314395b") + + self.assertRaises(TypeError, strxor, term1, term2, output=term1) + + def test_output_ro_memoryview(self): + """Verify result cannot be stored in read-only memory""" + + term1 = memoryview(unhexlify(b"ff339a83e5cd4cdf5649")) + term2 = unhexlify(b"383d4ba020573314395b") + + self.assertRaises(TypeError, strxor, term1, term2, output=term1) + + def test_output_incorrect_length(self): + """Verify result cannot be stored in memory of incorrect length""" + + term1 = unhexlify(b"ff339a83e5cd4cdf5649") + term2 = unhexlify(b"383d4ba020573314395b") + output = bytearray(len(term1) - 1) + + self.assertRaises(ValueError, strxor, term1, term2, output=output) + + +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 test_bytearray(self): + term1 = unhexlify(b"ff339a83e5cd4cdf5649") + term1_ba = bytearray(term1) + result = unhexlify(b"be72dbc2a48c0d9e1708") + + self.assertEqual(strxor_c(term1_ba, 65), result) + + def test_memoryview(self): + term1 = unhexlify(b"ff339a83e5cd4cdf5649") + term1_mv = memoryview(term1) + result = unhexlify(b"be72dbc2a48c0d9e1708") + + self.assertEqual(strxor_c(term1_mv, 65), result) + + def test_output_bytearray(self): + term1 = unhexlify(b"ff339a83e5cd4cdf5649") + original_term1 = term1[:] + expected_result = unhexlify(b"be72dbc2a48c0d9e1708") + output = bytearray(len(term1)) + + result = strxor_c(term1, 65, output=output) + + self.assertEqual(result, None) + self.assertEqual(output, expected_result) + self.assertEqual(term1, original_term1) + + def test_output_memoryview(self): + term1 = unhexlify(b"ff339a83e5cd4cdf5649") + original_term1 = term1[:] + expected_result = unhexlify(b"be72dbc2a48c0d9e1708") + output = memoryview(bytearray(len(term1))) + + result = strxor_c(term1, 65, output=output) + + self.assertEqual(result, None) + self.assertEqual(output, expected_result) + self.assertEqual(term1, original_term1) + + def test_output_overlapping_bytearray(self): + """Verify result can be stored in overlapping memory""" + + term1 = bytearray(unhexlify(b"ff339a83e5cd4cdf5649")) + expected_xor = unhexlify(b"be72dbc2a48c0d9e1708") + + result = strxor_c(term1, 65, output=term1) + + self.assertEqual(result, None) + self.assertEqual(term1, expected_xor) + + def test_output_overlapping_memoryview(self): + """Verify result can be stored in overlapping memory""" + + term1 = memoryview(bytearray(unhexlify(b"ff339a83e5cd4cdf5649"))) + expected_xor = unhexlify(b"be72dbc2a48c0d9e1708") + + result = strxor_c(term1, 65, output=term1) + + self.assertEqual(result, None) + self.assertEqual(term1, expected_xor) + + def test_output_ro_bytes(self): + """Verify result cannot be stored in read-only memory""" + + term1 = unhexlify(b"ff339a83e5cd4cdf5649") + + self.assertRaises(TypeError, strxor_c, term1, 65, output=term1) + + def test_output_ro_memoryview(self): + """Verify result cannot be stored in read-only memory""" + + term1 = memoryview(unhexlify(b"ff339a83e5cd4cdf5649")) + term2 = unhexlify(b"383d4ba020573314395b") + + self.assertRaises(TypeError, strxor_c, term1, 65, output=term1) + + def test_output_incorrect_length(self): + """Verify result cannot be stored in memory of incorrect length""" + + term1 = unhexlify(b"ff339a83e5cd4cdf5649") + output = bytearray(len(term1) - 1) + + self.assertRaises(ValueError, strxor_c, term1, 65, output=output) + + +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') -- cgit v1.2.3