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Þ'¯°ÌME[YéïĵÂCå½ Ué©Áû'Ê9%eÔðNU”ë‘ÌsD3/®+UI˜9h.WC”빓$#:pz:YÓ ¿xž* ³$Í +$kñAŠ‹†¢ Uê>¸)_š¬÷©ßAÂÔb9ÇU ¯¾á•9¯ÏÏ÷O÷¼¼Fähal1‰3Ì[Ïr•´UCksNÐ] R‘¸¥H+§Šé†c©vÖÞ0iÓ76s†î!§=ß ¼~Ô'°Ãmäoäš³ªøi1úÉ)³yV8 CLÄØÁ‘WYïi€H6ÖÑiámø^ÈY´°Ñ7¥Û*—Ñ©L«Qƒï—Ùrÿ ›£Ð*š¸ˆL©ˆ$ˆ ÷¾D§9È®«qbqC)–ˆïv´çñsÑVT­Ø, <àïºÀO«Jý·õ àfPìð .wFšir´þ’2_Y *Æ€x\« ì€9š@ Ž|F⇥ˆkZ@hÖÄ0t¿-<“‹qµ¾*ZL¤Ú)&BJpÓF5=$„at*Zš$’ÑtdûÝRI1 2Ž‰$€$I$#‰SÞ’Hë¬ï;Á$¡t$’`<(ñÇt)$‡Ð.Êf¢X’Kt=Éé$‚ˆªè¢oÝëòI%Rgcª÷ŠyI%¡‰ÿ !ñ)´õ $¤ Ô’IIGÿÙimport binascii import functools import hmac import hashlib import unittest import unittest.mock import warnings from test.support import hashlib_helper from _operator import _compare_digest as operator_compare_digest try: from _hashlib import HMAC as C_HMAC from _hashlib import hmac_new as c_hmac_new from _hashlib import compare_digest as openssl_compare_digest except ImportError: C_HMAC = None c_hmac_new = None openssl_compare_digest = None def ignore_warning(func): @functools.wraps(func) def wrapper(*args, **kwargs): with warnings.catch_warnings(): warnings.filterwarnings("ignore", category=DeprecationWarning) return func(*args, **kwargs) return wrapper class TestVectorsTestCase(unittest.TestCase): def asssert_hmac( self, key, data, digest, hashfunc, hashname, digest_size, block_size ): h = hmac.HMAC(key, data, digestmod=hashfunc) self.assertEqual(h.hexdigest().upper(), digest.upper()) self.assertEqual(h.digest(), binascii.unhexlify(digest)) self.assertEqual(h.name, f"hmac-{hashname}") self.assertEqual(h.digest_size, digest_size) self.assertEqual(h.block_size, block_size) h = hmac.HMAC(key, data, digestmod=hashname) self.assertEqual(h.hexdigest().upper(), digest.upper()) self.assertEqual(h.digest(), binascii.unhexlify(digest)) self.assertEqual(h.name, f"hmac-{hashname}") self.assertEqual(h.digest_size, digest_size) self.assertEqual(h.block_size, block_size) h = hmac.HMAC(key, digestmod=hashname) h2 = h.copy() h2.update(b"test update") h.update(data) self.assertEqual(h.hexdigest().upper(), digest.upper()) h = hmac.new(key, data, digestmod=hashname) self.assertEqual(h.hexdigest().upper(), digest.upper()) self.assertEqual(h.digest(), binascii.unhexlify(digest)) self.assertEqual(h.name, f"hmac-{hashname}") self.assertEqual(h.digest_size, digest_size) self.assertEqual(h.block_size, block_size) h = hmac.new(key, None, digestmod=hashname) h.update(data) self.assertEqual(h.hexdigest().upper(), digest.upper()) h = hmac.new(key, digestmod=hashname) h.update(data) self.assertEqual(h.hexdigest().upper(), digest.upper()) h = hmac.new(key, data, digestmod=hashfunc) self.assertEqual(h.hexdigest().upper(), digest.upper()) self.assertEqual( hmac.digest(key, data, digest=hashname), binascii.unhexlify(digest) ) self.assertEqual( hmac.digest(key, data, digest=hashfunc), binascii.unhexlify(digest) ) with unittest.mock.patch('hmac._openssl_md_meths', {}): self.assertEqual( hmac.digest(key, data, digest=hashname), binascii.unhexlify(digest) ) self.assertEqual( hmac.digest(key, data, digest=hashfunc), binascii.unhexlify(digest) ) if c_hmac_new is not None: h = c_hmac_new(key, data, digestmod=hashname) self.assertEqual(h.hexdigest().upper(), digest.upper()) self.assertEqual(h.digest(), binascii.unhexlify(digest)) self.assertEqual(h.name, f"hmac-{hashname}") self.assertEqual(h.digest_size, digest_size) self.assertEqual(h.block_size, block_size) h = c_hmac_new(key, digestmod=hashname) h2 = h.copy() h2.update(b"test update") h.update(data) self.assertEqual(h.hexdigest().upper(), digest.upper()) @hashlib_helper.requires_hashdigest('md5', openssl=True) def test_md5_vectors(self): # Test the HMAC module against test vectors from the RFC. def md5test(key, data, digest): self.asssert_hmac( key, data, digest, hashfunc=hashlib.md5, hashname="md5", digest_size=16, block_size=64 ) md5test(b"\x0b" * 16, b"Hi There", "9294727A3638BB1C13F48EF8158BFC9D") md5test(b"Jefe", b"what do ya want for nothing?", "750c783e6ab0b503eaa86e310a5db738") md5test(b"\xaa" * 16, b"\xdd" * 50, "56be34521d144c88dbb8c733f0e8b3f6") md5test(bytes(range(1, 26)), b"\xcd" * 50, "697eaf0aca3a3aea3a75164746ffaa79") md5test(b"\x0C" * 16, b"Test With Truncation", "56461ef2342edc00f9bab995690efd4c") md5test(b"\xaa" * 80, b"Test Using Larger Than Block-Size Key - Hash Key First", "6b1ab7fe4bd7bf8f0b62e6ce61b9d0cd") md5test(b"\xaa" * 80, (b"Test Using Larger Than Block-Size Key " b"and Larger Than One Block-Size Data"), "6f630fad67cda0ee1fb1f562db3aa53e") @hashlib_helper.requires_hashdigest('sha1', openssl=True) def test_sha_vectors(self): def shatest(key, data, digest): self.asssert_hmac( key, data, digest, hashfunc=hashlib.sha1, hashname="sha1", digest_size=20, block_size=64 ) shatest(b"\x0b" * 20, b"Hi There", "b617318655057264e28bc0b6fb378c8ef146be00") shatest(b"Jefe", b"what do ya want for nothing?", "effcdf6ae5eb2fa2d27416d5f184df9c259a7c79") shatest(b"\xAA" * 20, b"\xDD" * 50, "125d7342b9ac11cd91a39af48aa17b4f63f175d3") shatest(bytes(range(1, 26)), b"\xCD" * 50, "4c9007f4026250c6bc8414f9bf50c86c2d7235da") shatest(b"\x0C" * 20, b"Test With Truncation", "4c1a03424b55e07fe7f27be1d58bb9324a9a5a04") shatest(b"\xAA" * 80, b"Test Using Larger Than Block-Size Key - Hash Key First", "aa4ae5e15272d00e95705637ce8a3b55ed402112") shatest(b"\xAA" * 80, (b"Test Using Larger Than Block-Size Key " b"and Larger Than One Block-Size Data"), "e8e99d0f45237d786d6bbaa7965c7808bbff1a91") def _rfc4231_test_cases(self, hashfunc, hash_name, digest_size, block_size): def hmactest(key, data, hexdigests): digest = hexdigests[hashfunc] self.asssert_hmac( key, data, digest, hashfunc=hashfunc, hashname=hash_name, digest_size=digest_size, block_size=block_size ) # 4.2. Test Case 1 hmactest(key = b'\x0b'*20, data = b'Hi There', hexdigests = { hashlib.sha224: '896fb1128abbdf196832107cd49df33f' '47b4b1169912ba4f53684b22', hashlib.sha256: 'b0344c61d8db38535ca8afceaf0bf12b' '881dc200c9833da726e9376c2e32cff7', hashlib.sha384: 'afd03944d84895626b0825f4ab46907f' '15f9dadbe4101ec682aa034c7cebc59c' 'faea9ea9076ede7f4af152e8b2fa9cb6', hashlib.sha512: '87aa7cdea5ef619d4ff0b4241a1d6cb0' '2379f4e2ce4ec2787ad0b30545e17cde' 'daa833b7d6b8a702038b274eaea3f4e4' 'be9d914eeb61f1702e696c203a126854', }) # 4.3. Test Case 2 hmactest(key = b'Jefe', data = b'what do ya want for nothing?', hexdigests = { hashlib.sha224: 'a30e01098bc6dbbf45690f3a7e9e6d0f' '8bbea2a39e6148008fd05e44', hashlib.sha256: '5bdcc146bf60754e6a042426089575c7' '5a003f089d2739839dec58b964ec3843', hashlib.sha384: 'af45d2e376484031617f78d2b58a6b1b' '9c7ef464f5a01b47e42ec3736322445e' '8e2240ca5e69e2c78b3239ecfab21649', hashlib.sha512: '164b7a7bfcf819e2e395fbe73b56e0a3' '87bd64222e831fd610270cd7ea250554' '9758bf75c05a994a6d034f65f8f0e6fd' 'caeab1a34d4a6b4b636e070a38bce737', }) # 4.4. Test Case 3 hmactest(key = b'\xaa'*20, data = b'\xdd'*50, hexdigests = { hashlib.sha224: '7fb3cb3588c6c1f6ffa9694d7d6ad264' '9365b0c1f65d69d1ec8333ea', hashlib.sha256: '773ea91e36800e46854db8ebd09181a7' '2959098b3ef8c122d9635514ced565fe', hashlib.sha384: '88062608d3e6ad8a0aa2ace014c8a86f' '0aa635d947ac9febe83ef4e55966144b' '2a5ab39dc13814b94e3ab6e101a34f27', hashlib.sha512: 'fa73b0089d56a284efb0f0756c890be9' 'b1b5dbdd8ee81a3655f83e33b2279d39' 'bf3e848279a722c806b485a47e67c807' 'b946a337bee8942674278859e13292fb', }) # 4.5. Test Case 4 hmactest(key = bytes(x for x in range(0x01, 0x19+1)), data = b'\xcd'*50, hexdigests = { hashlib.sha224: '6c11506874013cac6a2abc1bb382627c' 'ec6a90d86efc012de7afec5a', hashlib.sha256: '82558a389a443c0ea4cc819899f2083a' '85f0faa3e578f8077a2e3ff46729665b', hashlib.sha384: '3e8a69b7783c25851933ab6290af6ca7' '7a9981480850009cc5577c6e1f573b4e' '6801dd23c4a7d679ccf8a386c674cffb', hashlib.sha512: 'b0ba465637458c6990e5a8c5f61d4af7' 'e576d97ff94b872de76f8050361ee3db' 'a91ca5c11aa25eb4d679275cc5788063' 'a5f19741120c4f2de2adebeb10a298dd', }) # 4.7. Test Case 6 hmactest(key = b'\xaa'*131, data = b'Test Using Larger Than Block-Siz' b'e Key - Hash Key First', hexdigests = { hashlib.sha224: '95e9a0db962095adaebe9b2d6f0dbce2' 'd499f112f2d2b7273fa6870e', hashlib.sha256: '60e431591ee0b67f0d8a26aacbf5b77f' '8e0bc6213728c5140546040f0ee37f54', hashlib.sha384: '4ece084485813e9088d2c63a041bc5b4' '4f9ef1012a2b588f3cd11f05033ac4c6' '0c2ef6ab4030fe8296248df163f44952', hashlib.sha512: '80b24263c7c1a3ebb71493c1dd7be8b4' '9b46d1f41b4aeec1121b013783f8f352' '6b56d037e05f2598bd0fd2215d6a1e52' '95e64f73f63f0aec8b915a985d786598', }) # 4.8. Test Case 7 hmactest(key = b'\xaa'*131, data = b'This is a test using a larger th' b'an block-size key and a larger t' b'han block-size data. The key nee' b'ds to be hashed before being use' b'd by the HMAC algorithm.', hexdigests = { hashlib.sha224: '3a854166ac5d9f023f54d517d0b39dbd' '946770db9c2b95c9f6f565d1', hashlib.sha256: '9b09ffa71b942fcb27635fbcd5b0e944' 'bfdc63644f0713938a7f51535c3a35e2', hashlib.sha384: '6617178e941f020d351e2f254e8fd32c' '602420feb0b8fb9adccebb82461e99c5' 'a678cc31e799176d3860e6110c46523e', hashlib.sha512: 'e37b6a775dc87dbaa4dfa9f96e5e3ffd' 'debd71f8867289865df5a32d20cdc944' 'b6022cac3c4982b10d5eeb55c3e4de15' '134676fb6de0446065c97440fa8c6a58', }) @hashlib_helper.requires_hashdigest('sha224', openssl=True) def test_sha224_rfc4231(self): self._rfc4231_test_cases(hashlib.sha224, 'sha224', 28, 64) @hashlib_helper.requires_hashdigest('sha256', openssl=True) def test_sha256_rfc4231(self): self._rfc4231_test_cases(hashlib.sha256, 'sha256', 32, 64) @hashlib_helper.requires_hashdigest('sha384', openssl=True) def test_sha384_rfc4231(self): self._rfc4231_test_cases(hashlib.sha384, 'sha384', 48, 128) @hashlib_helper.requires_hashdigest('sha512', openssl=True) def test_sha512_rfc4231(self): self._rfc4231_test_cases(hashlib.sha512, 'sha512', 64, 128) @hashlib_helper.requires_hashdigest('sha256') def test_legacy_block_size_warnings(self): class MockCrazyHash(object): """Ain't no block_size attribute here.""" def __init__(self, *args): self._x = hashlib.sha256(*args) self.digest_size = self._x.digest_size def update(self, v): self._x.update(v) def digest(self): return self._x.digest() with warnings.catch_warnings(): warnings.simplefilter('error', RuntimeWarning) with self.assertRaises(RuntimeWarning): hmac.HMAC(b'a', b'b', digestmod=MockCrazyHash) self.fail('Expected warning about missing block_size') MockCrazyHash.block_size = 1 with self.assertRaises(RuntimeWarning): hmac.HMAC(b'a', b'b', digestmod=MockCrazyHash) self.fail('Expected warning about small block_size') def test_with_digestmod_no_default(self): """The digestmod parameter is required as of Python 3.8.""" with self.assertRaisesRegex(TypeError, r'required.*digestmod'): key = b"\x0b" * 16 data = b"Hi There" hmac.HMAC(key, data, digestmod=None) with self.assertRaisesRegex(TypeError, r'required.*digestmod'): hmac.new(key, data) with self.assertRaisesRegex(TypeError, r'required.*digestmod'): hmac.HMAC(key, msg=data, digestmod='') class ConstructorTestCase(unittest.TestCase): expected = ( "6c845b47f52b3b47f6590c502db7825aad757bf4fadc8fa972f7cd2e76a5bdeb" ) @hashlib_helper.requires_hashdigest('sha256') def test_normal(self): # Standard constructor call. try: hmac.HMAC(b"key", digestmod='sha256') except Exception: self.fail("Standard constructor call raised exception.") @hashlib_helper.requires_hashdigest('sha256') def test_with_str_key(self): # Pass a key of type str, which is an error, because it expects a key # of type bytes with self.assertRaises(TypeError): h = hmac.HMAC("key", digestmod='sha256') @hashlib_helper.requires_hashdigest('sha256') def test_dot_new_with_str_key(self): # Pass a key of type str, which is an error, because it expects a key # of type bytes with self.assertRaises(TypeError): h = hmac.new("key", digestmod='sha256') @hashlib_helper.requires_hashdigest('sha256') def test_withtext(self): # Constructor call with text. try: h = hmac.HMAC(b"key", b"hash this!", digestmod='sha256') except Exception: self.fail("Constructor call with text argument raised exception.") self.assertEqual(h.hexdigest(), self.expected) @hashlib_helper.requires_hashdigest('sha256') def test_with_bytearray(self): try: h = hmac.HMAC(bytearray(b"key"), bytearray(b"hash this!"), digestmod="sha256") except Exception: self.fail("Constructor call with bytearray arguments raised exception.") self.assertEqual(h.hexdigest(), self.expected) @hashlib_helper.requires_hashdigest('sha256') def test_with_memoryview_msg(self): try: h = hmac.HMAC(b"key", memoryview(b"hash this!"), digestmod="sha256") except Exception: self.fail("Constructor call with memoryview msg raised exception.") self.assertEqual(h.hexdigest(), self.expected) @hashlib_helper.requires_hashdigest('sha256') def test_withmodule(self): # Constructor call with text and digest module. try: h = hmac.HMAC(b"key", b"", hashlib.sha256) except Exception: self.fail("Constructor call with hashlib.sha256 raised exception.") @unittest.skipUnless(C_HMAC is not None, 'need _hashlib') def test_internal_types(self): # internal types like _hashlib.C_HMAC are not constructable with self.assertRaisesRegex( TypeError, "cannot create 'HMAC' instance" ): C_HMAC() class SanityTestCase(unittest.TestCase): @hashlib_helper.requires_hashdigest('sha256') def test_exercise_all_methods(self): # Exercising all methods once. # This must not raise any exceptions try: h = hmac.HMAC(b"my secret key", digestmod="sha256") h.update(b"compute the hash of this text!") h.digest() h.hexdigest() h.copy() except Exception: self.fail("Exception raised during normal usage of HMAC class.") class CopyTestCase(unittest.TestCase): @hashlib_helper.requires_hashdigest('sha256') def test_attributes(self): # Testing if attributes are of same type. h1 = hmac.HMAC(b"key", digestmod="sha256") h2 = h1.copy() self.assertTrue(h1._digest_cons == h2._digest_cons, "digest constructors don't match.") self.assertEqual(type(h1._inner), type(h2._inner), "Types of inner don't match.") self.assertEqual(type(h1._outer), type(h2._outer), "Types of outer don't match.") @hashlib_helper.requires_hashdigest('sha256') def test_realcopy(self): # Testing if the copy method created a real copy. h1 = hmac.HMAC(b"key", digestmod="sha256") h2 = h1.copy() # Using id() in case somebody has overridden __eq__/__ne__. self.assertTrue(id(h1) != id(h2), "No real copy of the HMAC instance.") self.assertTrue(id(h1._inner) != id(h2._inner), "No real copy of the attribute 'inner'.") self.assertTrue(id(h1._outer) != id(h2._outer), "No real copy of the attribute 'outer'.") self.assertEqual(h1._inner, h1.inner) self.assertEqual(h1._outer, h1.outer) self.assertEqual(h1._digest_cons, h1.digest_cons) @hashlib_helper.requires_hashdigest('sha256') def test_properties(self): # deprecated properties h1 = hmac.HMAC(b"key", digestmod="sha256") self.assertEqual(h1._inner, h1.inner) self.assertEqual(h1._outer, h1.outer) self.assertEqual(h1._digest_cons, h1.digest_cons) @hashlib_helper.requires_hashdigest('sha256') def test_equality(self): # Testing if the copy has the same digests. h1 = hmac.HMAC(b"key", digestmod="sha256") h1.update(b"some random text") h2 = h1.copy() self.assertEqual(h1.digest(), h2.digest(), "Digest of copy doesn't match original digest.") self.assertEqual(h1.hexdigest(), h2.hexdigest(), "Hexdigest of copy doesn't match original hexdigest.") @hashlib_helper.requires_hashdigest('sha256') def test_equality_new(self): # Testing if the copy has the same digests with hmac.new(). h1 = hmac.new(b"key", digestmod="sha256") h1.update(b"some random text") h2 = h1.copy() self.assertTrue( id(h1) != id(h2), "No real copy of the HMAC instance." ) self.assertEqual(h1.digest(), h2.digest(), "Digest of copy doesn't match original digest.") self.assertEqual(h1.hexdigest(), h2.hexdigest(), "Hexdigest of copy doesn't match original hexdigest.") class CompareDigestTestCase(unittest.TestCase): def test_hmac_compare_digest(self): self._test_compare_digest(hmac.compare_digest) if openssl_compare_digest is not None: self.assertIs(hmac.compare_digest, openssl_compare_digest) else: self.assertIs(hmac.compare_digest, operator_compare_digest) def test_operator_compare_digest(self): self._test_compare_digest(operator_compare_digest) @unittest.skipIf(openssl_compare_digest is None, "test requires _hashlib") def test_openssl_compare_digest(self): self._test_compare_digest(openssl_compare_digest) def _test_compare_digest(self, compare_digest): # Testing input type exception handling a, b = 100, 200 self.assertRaises(TypeError, compare_digest, a, b) a, b = 100, b"foobar" self.assertRaises(TypeError, compare_digest, a, b) a, b = b"foobar", 200 self.assertRaises(TypeError, compare_digest, a, b) a, b = "foobar", b"foobar" self.assertRaises(TypeError, compare_digest, a, b) a, b = b"foobar", "foobar" self.assertRaises(TypeError, compare_digest, a, b) # Testing bytes of different lengths a, b = b"foobar", b"foo" self.assertFalse(compare_digest(a, b)) a, b = b"\xde\xad\xbe\xef", b"\xde\xad" self.assertFalse(compare_digest(a, b)) # Testing bytes of same lengths, different values a, b = b"foobar", b"foobaz" self.assertFalse(compare_digest(a, b)) a, b = b"\xde\xad\xbe\xef", b"\xab\xad\x1d\xea" self.assertFalse(compare_digest(a, b)) # Testing bytes of same lengths, same values a, b = b"foobar", b"foobar" self.assertTrue(compare_digest(a, b)) a, b = b"\xde\xad\xbe\xef", b"\xde\xad\xbe\xef" self.assertTrue(compare_digest(a, b)) # Testing bytearrays of same lengths, same values a, b = bytearray(b"foobar"), bytearray(b"foobar") self.assertTrue(compare_digest(a, b)) # Testing bytearrays of different lengths a, b = bytearray(b"foobar"), bytearray(b"foo") self.assertFalse(compare_digest(a, b)) # Testing bytearrays of same lengths, different values a, b = bytearray(b"foobar"), bytearray(b"foobaz") self.assertFalse(compare_digest(a, b)) # Testing byte and bytearray of same lengths, same values a, b = bytearray(b"foobar"), b"foobar" self.assertTrue(compare_digest(a, b)) self.assertTrue(compare_digest(b, a)) # Testing byte bytearray of different lengths a, b = bytearray(b"foobar"), b"foo" self.assertFalse(compare_digest(a, b)) self.assertFalse(compare_digest(b, a)) # Testing byte and bytearray of same lengths, different values a, b = bytearray(b"foobar"), b"foobaz" self.assertFalse(compare_digest(a, b)) self.assertFalse(compare_digest(b, a)) # Testing str of same lengths a, b = "foobar", "foobar" self.assertTrue(compare_digest(a, b)) # Testing str of different lengths a, b = "foo", "foobar" self.assertFalse(compare_digest(a, b)) # Testing bytes of same lengths, different values a, b = "foobar", "foobaz" self.assertFalse(compare_digest(a, b)) # Testing error cases a, b = "foobar", b"foobar" self.assertRaises(TypeError, compare_digest, a, b) a, b = b"foobar", "foobar" self.assertRaises(TypeError, compare_digest, a, b) a, b = b"foobar", 1 self.assertRaises(TypeError, compare_digest, a, b) a, b = 100, 200 self.assertRaises(TypeError, compare_digest, a, b) a, b = "fooä", "fooä" self.assertRaises(TypeError, compare_digest, a, b) # subclasses are supported by ignore __eq__ class mystr(str): def __eq__(self, other): return False a, b = mystr("foobar"), mystr("foobar") self.assertTrue(compare_digest(a, b)) a, b = mystr("foobar"), "foobar" self.assertTrue(compare_digest(a, b)) a, b = mystr("foobar"), mystr("foobaz") self.assertFalse(compare_digest(a, b)) class mybytes(bytes): def __eq__(self, other): return False a, b = mybytes(b"foobar"), mybytes(b"foobar") self.assertTrue(compare_digest(a, b)) a, b = mybytes(b"foobar"), b"foobar" self.assertTrue(compare_digest(a, b)) a, b = mybytes(b"foobar"), mybytes(b"foobaz") self.assertFalse(compare_digest(a, b)) if __name__ == "__main__": unittest.main()