170 lines
6.4 KiB
Python
170 lines
6.4 KiB
Python
# -*- coding: utf-8 -*-
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#
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# SelfTest/Cipher/ARC2.py: Self-test for the Alleged-RC2 cipher
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#
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# Written in 2008 by Dwayne C. Litzenberger <dlitz@dlitz.net>
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#
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# ===================================================================
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# The contents of this file are dedicated to the public domain. To
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# the extent that dedication to the public domain is not available,
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# everyone is granted a worldwide, perpetual, royalty-free,
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# non-exclusive license to exercise all rights associated with the
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# contents of this file for any purpose whatsoever.
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# No rights are reserved.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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# ===================================================================
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"""Self-test suite for Crypto.Cipher.ARC2"""
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import unittest
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from Crypto.Util.py3compat import b, bchr
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from Crypto.Cipher import ARC2
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# This is a list of (plaintext, ciphertext, key[, description[, extra_params]]) tuples.
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test_data = [
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# Test vectors from RFC 2268
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# 63-bit effective key length
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('0000000000000000', 'ebb773f993278eff', '0000000000000000',
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'RFC2268-1', dict(effective_keylen=63)),
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# 64-bit effective key length
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('ffffffffffffffff', '278b27e42e2f0d49', 'ffffffffffffffff',
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'RFC2268-2', dict(effective_keylen=64)),
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('1000000000000001', '30649edf9be7d2c2', '3000000000000000',
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'RFC2268-3', dict(effective_keylen=64)),
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#('0000000000000000', '61a8a244adacccf0', '88',
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# 'RFC2268-4', dict(effective_keylen=64)),
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('0000000000000000', '6ccf4308974c267f', '88bca90e90875a',
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'RFC2268-5', dict(effective_keylen=64)),
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('0000000000000000', '1a807d272bbe5db1', '88bca90e90875a7f0f79c384627bafb2',
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'RFC2268-6', dict(effective_keylen=64)),
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# 128-bit effective key length
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('0000000000000000', '2269552ab0f85ca6', '88bca90e90875a7f0f79c384627bafb2',
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"RFC2268-7", dict(effective_keylen=128)),
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('0000000000000000', '5b78d3a43dfff1f1',
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'88bca90e90875a7f0f79c384627bafb216f80a6f85920584c42fceb0be255daf1e',
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"RFC2268-8", dict(effective_keylen=129)),
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# Test vectors from PyCrypto 2.0.1's testdata.py
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# 1024-bit effective key length
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('0000000000000000', '624fb3e887419e48', '5068696c6970476c617373',
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'PCTv201-0'),
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('ffffffffffffffff', '79cadef44c4a5a85', '5068696c6970476c617373',
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'PCTv201-1'),
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('0001020304050607', '90411525b34e4c2c', '5068696c6970476c617373',
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'PCTv201-2'),
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('0011223344556677', '078656aaba61cbfb', '5068696c6970476c617373',
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'PCTv201-3'),
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('0000000000000000', 'd7bcc5dbb4d6e56a', 'ffffffffffffffff',
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'PCTv201-4'),
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('ffffffffffffffff', '7259018ec557b357', 'ffffffffffffffff',
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'PCTv201-5'),
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('0001020304050607', '93d20a497f2ccb62', 'ffffffffffffffff',
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'PCTv201-6'),
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('0011223344556677', 'cb15a7f819c0014d', 'ffffffffffffffff',
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'PCTv201-7'),
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('0000000000000000', '63ac98cdf3843a7a', 'ffffffffffffffff5065746572477265656e6177617953e5ffe553',
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'PCTv201-8'),
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('ffffffffffffffff', '3fb49e2fa12371dd', 'ffffffffffffffff5065746572477265656e6177617953e5ffe553',
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'PCTv201-9'),
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('0001020304050607', '46414781ab387d5f', 'ffffffffffffffff5065746572477265656e6177617953e5ffe553',
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'PCTv201-10'),
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('0011223344556677', 'be09dc81feaca271', 'ffffffffffffffff5065746572477265656e6177617953e5ffe553',
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'PCTv201-11'),
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('0000000000000000', 'e64221e608be30ab', '53e5ffe553',
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'PCTv201-12'),
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('ffffffffffffffff', '862bc60fdcd4d9a9', '53e5ffe553',
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'PCTv201-13'),
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('0001020304050607', '6a34da50fa5e47de', '53e5ffe553',
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'PCTv201-14'),
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('0011223344556677', '584644c34503122c', '53e5ffe553',
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'PCTv201-15'),
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]
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class BufferOverflowTest(unittest.TestCase):
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# Test a buffer overflow found in older versions of PyCrypto
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def runTest(self):
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"""ARC2 with keylength > 128"""
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key = b("x") * 16384
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self.assertRaises(ValueError, ARC2.new, key, ARC2.MODE_ECB)
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class KeyLength(unittest.TestCase):
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def runTest(self):
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ARC2.new(b'\x00' * 16, ARC2.MODE_ECB, effective_keylen=40)
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self.assertRaises(ValueError, ARC2.new, bchr(0) * 4, ARC2.MODE_ECB)
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self.assertRaises(ValueError, ARC2.new, bchr(0) * 129, ARC2.MODE_ECB)
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self.assertRaises(ValueError, ARC2.new, bchr(0) * 16, ARC2.MODE_ECB,
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effective_keylen=39)
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self.assertRaises(ValueError, ARC2.new, bchr(0) * 16, ARC2.MODE_ECB,
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effective_keylen=1025)
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class TestOutput(unittest.TestCase):
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def runTest(self):
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# Encrypt/Decrypt data and test output parameter
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cipher = ARC2.new(b'4'*16, ARC2.MODE_ECB)
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pt = b'5' * 16
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ct = cipher.encrypt(pt)
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output = bytearray(16)
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res = cipher.encrypt(pt, output=output)
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self.assertEqual(ct, output)
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self.assertEqual(res, None)
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res = cipher.decrypt(ct, output=output)
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self.assertEqual(pt, output)
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self.assertEqual(res, None)
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import sys
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if sys.version[:3] != '2.6':
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output = memoryview(bytearray(16))
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cipher.encrypt(pt, output=output)
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self.assertEqual(ct, output)
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cipher.decrypt(ct, output=output)
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self.assertEqual(pt, output)
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self.assertRaises(TypeError, cipher.encrypt, pt, output=b'0'*16)
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self.assertRaises(TypeError, cipher.decrypt, ct, output=b'0'*16)
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shorter_output = bytearray(7)
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self.assertRaises(ValueError, cipher.encrypt, pt, output=shorter_output)
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self.assertRaises(ValueError, cipher.decrypt, ct, output=shorter_output)
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def get_tests(config={}):
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from Crypto.Cipher import ARC2
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from .common import make_block_tests
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tests = make_block_tests(ARC2, "ARC2", test_data)
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tests.append(BufferOverflowTest())
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tests.append(KeyLength())
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tests += [TestOutput()]
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return tests
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if __name__ == '__main__':
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import unittest
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suite = lambda: unittest.TestSuite(get_tests())
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unittest.main(defaultTest='suite')
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# vim:set ts=4 sw=4 sts=4 expandtab:
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