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Editing: test_ARC2.py
# -*- coding: utf-8 -*- # # SelfTest/Cipher/ARC2.py: Self-test for the Alleged-RC2 cipher # # Written in 2008 by Dwayne C. Litzenberger <dlitz@dlitz.net> # # =================================================================== # The contents of this file are dedicated to the public domain. To # the extent that dedication to the public domain is not available, # everyone is granted a worldwide, perpetual, royalty-free, # non-exclusive license to exercise all rights associated with the # contents of this file for any purpose whatsoever. # No rights are reserved. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS # BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN # ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE # SOFTWARE. # =================================================================== """Self-test suite for Crypto.Cipher.ARC2""" import unittest from Crypto.Util.py3compat import b, bchr from Crypto.Cipher import ARC2 # This is a list of (plaintext, ciphertext, key[, description[, extra_params]]) tuples. test_data = [ # Test vectors from RFC 2268 # 63-bit effective key length ('0000000000000000', 'ebb773f993278eff', '0000000000000000', 'RFC2268-1', dict(effective_keylen=63)), # 64-bit effective key length ('ffffffffffffffff', '278b27e42e2f0d49', 'ffffffffffffffff', 'RFC2268-2', dict(effective_keylen=64)), ('1000000000000001', '30649edf9be7d2c2', '3000000000000000', 'RFC2268-3', dict(effective_keylen=64)), #('0000000000000000', '61a8a244adacccf0', '88', # 'RFC2268-4', dict(effective_keylen=64)), ('0000000000000000', '6ccf4308974c267f', '88bca90e90875a', 'RFC2268-5', dict(effective_keylen=64)), ('0000000000000000', '1a807d272bbe5db1', '88bca90e90875a7f0f79c384627bafb2', 'RFC2268-6', dict(effective_keylen=64)), # 128-bit effective key length ('0000000000000000', '2269552ab0f85ca6', '88bca90e90875a7f0f79c384627bafb2', "RFC2268-7", dict(effective_keylen=128)), ('0000000000000000', '5b78d3a43dfff1f1', '88bca90e90875a7f0f79c384627bafb216f80a6f85920584c42fceb0be255daf1e', "RFC2268-8", dict(effective_keylen=129)), # Test vectors from PyCrypto 2.0.1's testdata.py # 1024-bit effective key length ('0000000000000000', '624fb3e887419e48', '5068696c6970476c617373', 'PCTv201-0'), ('ffffffffffffffff', '79cadef44c4a5a85', '5068696c6970476c617373', 'PCTv201-1'), ('0001020304050607', '90411525b34e4c2c', '5068696c6970476c617373', 'PCTv201-2'), ('0011223344556677', '078656aaba61cbfb', '5068696c6970476c617373', 'PCTv201-3'), ('0000000000000000', 'd7bcc5dbb4d6e56a', 'ffffffffffffffff', 'PCTv201-4'), ('ffffffffffffffff', '7259018ec557b357', 'ffffffffffffffff', 'PCTv201-5'), ('0001020304050607', '93d20a497f2ccb62', 'ffffffffffffffff', 'PCTv201-6'), ('0011223344556677', 'cb15a7f819c0014d', 'ffffffffffffffff', 'PCTv201-7'), ('0000000000000000', '63ac98cdf3843a7a', 'ffffffffffffffff5065746572477265656e6177617953e5ffe553', 'PCTv201-8'), ('ffffffffffffffff', '3fb49e2fa12371dd', 'ffffffffffffffff5065746572477265656e6177617953e5ffe553', 'PCTv201-9'), ('0001020304050607', '46414781ab387d5f', 'ffffffffffffffff5065746572477265656e6177617953e5ffe553', 'PCTv201-10'), ('0011223344556677', 'be09dc81feaca271', 'ffffffffffffffff5065746572477265656e6177617953e5ffe553', 'PCTv201-11'), ('0000000000000000', 'e64221e608be30ab', '53e5ffe553', 'PCTv201-12'), ('ffffffffffffffff', '862bc60fdcd4d9a9', '53e5ffe553', 'PCTv201-13'), ('0001020304050607', '6a34da50fa5e47de', '53e5ffe553', 'PCTv201-14'), ('0011223344556677', '584644c34503122c', '53e5ffe553', 'PCTv201-15'), ] class BufferOverflowTest(unittest.TestCase): # Test a buffer overflow found in older versions of PyCrypto def runTest(self): """ARC2 with keylength > 128""" key = b("x") * 16384 self.assertRaises(ValueError, ARC2.new, key, ARC2.MODE_ECB) class KeyLength(unittest.TestCase): def runTest(self): ARC2.new(b'\x00' * 16, ARC2.MODE_ECB, effective_keylen=40) self.assertRaises(ValueError, ARC2.new, bchr(0) * 4, ARC2.MODE_ECB) self.assertRaises(ValueError, ARC2.new, bchr(0) * 129, ARC2.MODE_ECB) self.assertRaises(ValueError, ARC2.new, bchr(0) * 16, ARC2.MODE_ECB, effective_keylen=39) self.assertRaises(ValueError, ARC2.new, bchr(0) * 16, ARC2.MODE_ECB, effective_keylen=1025) class TestOutput(unittest.TestCase): def runTest(self): # Encrypt/Decrypt data and test output parameter cipher = ARC2.new(b'4'*16, ARC2.MODE_ECB) pt = b'5' * 16 ct = cipher.encrypt(pt) output = bytearray(16) res = cipher.encrypt(pt, output=output) self.assertEqual(ct, output) self.assertEqual(res, None) res = cipher.decrypt(ct, output=output) self.assertEqual(pt, output) self.assertEqual(res, None) output = memoryview(bytearray(16)) cipher.encrypt(pt, output=output) self.assertEqual(ct, output) cipher.decrypt(ct, output=output) self.assertEqual(pt, output) self.assertRaises(TypeError, cipher.encrypt, pt, output=b'0'*16) self.assertRaises(TypeError, cipher.decrypt, ct, output=b'0'*16) shorter_output = bytearray(7) self.assertRaises(ValueError, cipher.encrypt, pt, output=shorter_output) self.assertRaises(ValueError, cipher.decrypt, ct, output=shorter_output) def get_tests(config={}): from Crypto.Cipher import ARC2 from .common import make_block_tests tests = make_block_tests(ARC2, "ARC2", test_data) tests.append(BufferOverflowTest()) tests.append(KeyLength()) tests += [TestOutput()] return tests if __name__ == '__main__': import unittest suite = lambda: unittest.TestSuite(get_tests()) unittest.main(defaultTest='suite') # vim:set ts=4 sw=4 sts=4 expandtab:
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