Guido van Rossum | f166994 | 2001-09-11 15:54:16 +0000 | [diff] [blame] | 1 | import hmac |
Guido van Rossum | a19f80c | 2007-11-06 20:51:31 +0000 | [diff] [blame] | 2 | import hashlib |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 3 | import unittest |
Guido van Rossum | a19f80c | 2007-11-06 20:51:31 +0000 | [diff] [blame] | 4 | import warnings |
Benjamin Peterson | ee8712c | 2008-05-20 21:35:26 +0000 | [diff] [blame] | 5 | from test import support |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 6 | |
| 7 | class TestVectorsTestCase(unittest.TestCase): |
Guido van Rossum | 7e8fdba | 2002-08-22 19:38:14 +0000 | [diff] [blame] | 8 | |
Jeremy Hylton | 893801e | 2003-05-27 16:16:41 +0000 | [diff] [blame] | 9 | def test_md5_vectors(self): |
Guido van Rossum | 7e8fdba | 2002-08-22 19:38:14 +0000 | [diff] [blame] | 10 | # Test the HMAC module against test vectors from the RFC. |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 11 | |
| 12 | def md5test(key, data, digest): |
| 13 | h = hmac.HMAC(key, data) |
Jeremy Hylton | 893801e | 2003-05-27 16:16:41 +0000 | [diff] [blame] | 14 | self.assertEqual(h.hexdigest().upper(), digest.upper()) |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 15 | |
Guido van Rossum | 3f42908 | 2007-07-10 13:35:52 +0000 | [diff] [blame] | 16 | md5test(b"\x0b" * 16, |
| 17 | b"Hi There", |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 18 | "9294727A3638BB1C13F48EF8158BFC9D") |
| 19 | |
Guido van Rossum | 3f42908 | 2007-07-10 13:35:52 +0000 | [diff] [blame] | 20 | md5test(b"Jefe", |
| 21 | b"what do ya want for nothing?", |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 22 | "750c783e6ab0b503eaa86e310a5db738") |
| 23 | |
Guido van Rossum | 3f42908 | 2007-07-10 13:35:52 +0000 | [diff] [blame] | 24 | md5test(b"\xaa" * 16, |
| 25 | b"\xdd" * 50, |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 26 | "56be34521d144c88dbb8c733f0e8b3f6") |
| 27 | |
Guido van Rossum | 39478e8 | 2007-08-27 17:23:59 +0000 | [diff] [blame] | 28 | md5test(bytes(range(1, 26)), |
Guido van Rossum | 3f42908 | 2007-07-10 13:35:52 +0000 | [diff] [blame] | 29 | b"\xcd" * 50, |
Jeremy Hylton | 893801e | 2003-05-27 16:16:41 +0000 | [diff] [blame] | 30 | "697eaf0aca3a3aea3a75164746ffaa79") |
| 31 | |
Guido van Rossum | 39478e8 | 2007-08-27 17:23:59 +0000 | [diff] [blame] | 32 | md5test(b"\x0C" * 16, |
| 33 | b"Test With Truncation", |
Jeremy Hylton | 893801e | 2003-05-27 16:16:41 +0000 | [diff] [blame] | 34 | "56461ef2342edc00f9bab995690efd4c") |
| 35 | |
Guido van Rossum | 3f42908 | 2007-07-10 13:35:52 +0000 | [diff] [blame] | 36 | md5test(b"\xaa" * 80, |
Guido van Rossum | 39478e8 | 2007-08-27 17:23:59 +0000 | [diff] [blame] | 37 | b"Test Using Larger Than Block-Size Key - Hash Key First", |
Jeremy Hylton | 893801e | 2003-05-27 16:16:41 +0000 | [diff] [blame] | 38 | "6b1ab7fe4bd7bf8f0b62e6ce61b9d0cd") |
| 39 | |
Guido van Rossum | 3f42908 | 2007-07-10 13:35:52 +0000 | [diff] [blame] | 40 | md5test(b"\xaa" * 80, |
Guido van Rossum | 39478e8 | 2007-08-27 17:23:59 +0000 | [diff] [blame] | 41 | (b"Test Using Larger Than Block-Size Key " |
| 42 | b"and Larger Than One Block-Size Data"), |
Jeremy Hylton | 893801e | 2003-05-27 16:16:41 +0000 | [diff] [blame] | 43 | "6f630fad67cda0ee1fb1f562db3aa53e") |
| 44 | |
| 45 | def test_sha_vectors(self): |
| 46 | def shatest(key, data, digest): |
Guido van Rossum | a19f80c | 2007-11-06 20:51:31 +0000 | [diff] [blame] | 47 | h = hmac.HMAC(key, data, digestmod=hashlib.sha1) |
Jeremy Hylton | 893801e | 2003-05-27 16:16:41 +0000 | [diff] [blame] | 48 | self.assertEqual(h.hexdigest().upper(), digest.upper()) |
| 49 | |
Guido van Rossum | 3f42908 | 2007-07-10 13:35:52 +0000 | [diff] [blame] | 50 | shatest(b"\x0b" * 20, |
| 51 | b"Hi There", |
Jeremy Hylton | 893801e | 2003-05-27 16:16:41 +0000 | [diff] [blame] | 52 | "b617318655057264e28bc0b6fb378c8ef146be00") |
| 53 | |
Guido van Rossum | 3f42908 | 2007-07-10 13:35:52 +0000 | [diff] [blame] | 54 | shatest(b"Jefe", |
| 55 | b"what do ya want for nothing?", |
Jeremy Hylton | 893801e | 2003-05-27 16:16:41 +0000 | [diff] [blame] | 56 | "effcdf6ae5eb2fa2d27416d5f184df9c259a7c79") |
| 57 | |
Guido van Rossum | 3f42908 | 2007-07-10 13:35:52 +0000 | [diff] [blame] | 58 | shatest(b"\xAA" * 20, |
| 59 | b"\xDD" * 50, |
Jeremy Hylton | 893801e | 2003-05-27 16:16:41 +0000 | [diff] [blame] | 60 | "125d7342b9ac11cd91a39af48aa17b4f63f175d3") |
| 61 | |
Guido van Rossum | 3f42908 | 2007-07-10 13:35:52 +0000 | [diff] [blame] | 62 | shatest(bytes(range(1, 26)), |
| 63 | b"\xCD" * 50, |
Jeremy Hylton | 893801e | 2003-05-27 16:16:41 +0000 | [diff] [blame] | 64 | "4c9007f4026250c6bc8414f9bf50c86c2d7235da") |
| 65 | |
Guido van Rossum | 39478e8 | 2007-08-27 17:23:59 +0000 | [diff] [blame] | 66 | shatest(b"\x0C" * 20, |
| 67 | b"Test With Truncation", |
Jeremy Hylton | 893801e | 2003-05-27 16:16:41 +0000 | [diff] [blame] | 68 | "4c1a03424b55e07fe7f27be1d58bb9324a9a5a04") |
| 69 | |
Guido van Rossum | 3f42908 | 2007-07-10 13:35:52 +0000 | [diff] [blame] | 70 | shatest(b"\xAA" * 80, |
| 71 | b"Test Using Larger Than Block-Size Key - Hash Key First", |
Jeremy Hylton | 893801e | 2003-05-27 16:16:41 +0000 | [diff] [blame] | 72 | "aa4ae5e15272d00e95705637ce8a3b55ed402112") |
| 73 | |
Guido van Rossum | 3f42908 | 2007-07-10 13:35:52 +0000 | [diff] [blame] | 74 | shatest(b"\xAA" * 80, |
| 75 | (b"Test Using Larger Than Block-Size Key " |
| 76 | b"and Larger Than One Block-Size Data"), |
Jeremy Hylton | 893801e | 2003-05-27 16:16:41 +0000 | [diff] [blame] | 77 | "e8e99d0f45237d786d6bbaa7965c7808bbff1a91") |
| 78 | |
Guido van Rossum | a19f80c | 2007-11-06 20:51:31 +0000 | [diff] [blame] | 79 | def _rfc4231_test_cases(self, hashfunc): |
| 80 | def hmactest(key, data, hexdigests): |
| 81 | h = hmac.HMAC(key, data, digestmod=hashfunc) |
| 82 | self.assertEqual(h.hexdigest().lower(), hexdigests[hashfunc]) |
| 83 | |
| 84 | # 4.2. Test Case 1 |
| 85 | hmactest(key = b'\x0b'*20, |
| 86 | data = b'Hi There', |
| 87 | hexdigests = { |
| 88 | hashlib.sha224: '896fb1128abbdf196832107cd49df33f' |
| 89 | '47b4b1169912ba4f53684b22', |
| 90 | hashlib.sha256: 'b0344c61d8db38535ca8afceaf0bf12b' |
| 91 | '881dc200c9833da726e9376c2e32cff7', |
| 92 | hashlib.sha384: 'afd03944d84895626b0825f4ab46907f' |
| 93 | '15f9dadbe4101ec682aa034c7cebc59c' |
| 94 | 'faea9ea9076ede7f4af152e8b2fa9cb6', |
| 95 | hashlib.sha512: '87aa7cdea5ef619d4ff0b4241a1d6cb0' |
| 96 | '2379f4e2ce4ec2787ad0b30545e17cde' |
| 97 | 'daa833b7d6b8a702038b274eaea3f4e4' |
| 98 | 'be9d914eeb61f1702e696c203a126854', |
| 99 | }) |
| 100 | |
| 101 | # 4.3. Test Case 2 |
| 102 | hmactest(key = b'Jefe', |
| 103 | data = b'what do ya want for nothing?', |
| 104 | hexdigests = { |
| 105 | hashlib.sha224: 'a30e01098bc6dbbf45690f3a7e9e6d0f' |
| 106 | '8bbea2a39e6148008fd05e44', |
| 107 | hashlib.sha256: '5bdcc146bf60754e6a042426089575c7' |
| 108 | '5a003f089d2739839dec58b964ec3843', |
| 109 | hashlib.sha384: 'af45d2e376484031617f78d2b58a6b1b' |
| 110 | '9c7ef464f5a01b47e42ec3736322445e' |
| 111 | '8e2240ca5e69e2c78b3239ecfab21649', |
| 112 | hashlib.sha512: '164b7a7bfcf819e2e395fbe73b56e0a3' |
| 113 | '87bd64222e831fd610270cd7ea250554' |
| 114 | '9758bf75c05a994a6d034f65f8f0e6fd' |
| 115 | 'caeab1a34d4a6b4b636e070a38bce737', |
| 116 | }) |
| 117 | |
| 118 | # 4.4. Test Case 3 |
| 119 | hmactest(key = b'\xaa'*20, |
| 120 | data = b'\xdd'*50, |
| 121 | hexdigests = { |
| 122 | hashlib.sha224: '7fb3cb3588c6c1f6ffa9694d7d6ad264' |
| 123 | '9365b0c1f65d69d1ec8333ea', |
| 124 | hashlib.sha256: '773ea91e36800e46854db8ebd09181a7' |
| 125 | '2959098b3ef8c122d9635514ced565fe', |
| 126 | hashlib.sha384: '88062608d3e6ad8a0aa2ace014c8a86f' |
| 127 | '0aa635d947ac9febe83ef4e55966144b' |
| 128 | '2a5ab39dc13814b94e3ab6e101a34f27', |
| 129 | hashlib.sha512: 'fa73b0089d56a284efb0f0756c890be9' |
| 130 | 'b1b5dbdd8ee81a3655f83e33b2279d39' |
| 131 | 'bf3e848279a722c806b485a47e67c807' |
| 132 | 'b946a337bee8942674278859e13292fb', |
| 133 | }) |
| 134 | |
| 135 | # 4.5. Test Case 4 |
| 136 | hmactest(key = bytes(x for x in range(0x01, 0x19+1)), |
| 137 | data = b'\xcd'*50, |
| 138 | hexdigests = { |
| 139 | hashlib.sha224: '6c11506874013cac6a2abc1bb382627c' |
| 140 | 'ec6a90d86efc012de7afec5a', |
| 141 | hashlib.sha256: '82558a389a443c0ea4cc819899f2083a' |
| 142 | '85f0faa3e578f8077a2e3ff46729665b', |
| 143 | hashlib.sha384: '3e8a69b7783c25851933ab6290af6ca7' |
| 144 | '7a9981480850009cc5577c6e1f573b4e' |
| 145 | '6801dd23c4a7d679ccf8a386c674cffb', |
| 146 | hashlib.sha512: 'b0ba465637458c6990e5a8c5f61d4af7' |
| 147 | 'e576d97ff94b872de76f8050361ee3db' |
| 148 | 'a91ca5c11aa25eb4d679275cc5788063' |
| 149 | 'a5f19741120c4f2de2adebeb10a298dd', |
| 150 | }) |
| 151 | |
| 152 | # 4.7. Test Case 6 |
| 153 | hmactest(key = b'\xaa'*131, |
| 154 | data = b'Test Using Larger Than Block-Siz' |
| 155 | b'e Key - Hash Key First', |
| 156 | hexdigests = { |
| 157 | hashlib.sha224: '95e9a0db962095adaebe9b2d6f0dbce2' |
| 158 | 'd499f112f2d2b7273fa6870e', |
| 159 | hashlib.sha256: '60e431591ee0b67f0d8a26aacbf5b77f' |
| 160 | '8e0bc6213728c5140546040f0ee37f54', |
| 161 | hashlib.sha384: '4ece084485813e9088d2c63a041bc5b4' |
| 162 | '4f9ef1012a2b588f3cd11f05033ac4c6' |
| 163 | '0c2ef6ab4030fe8296248df163f44952', |
| 164 | hashlib.sha512: '80b24263c7c1a3ebb71493c1dd7be8b4' |
| 165 | '9b46d1f41b4aeec1121b013783f8f352' |
| 166 | '6b56d037e05f2598bd0fd2215d6a1e52' |
| 167 | '95e64f73f63f0aec8b915a985d786598', |
| 168 | }) |
| 169 | |
| 170 | # 4.8. Test Case 7 |
| 171 | hmactest(key = b'\xaa'*131, |
| 172 | data = b'This is a test using a larger th' |
| 173 | b'an block-size key and a larger t' |
| 174 | b'han block-size data. The key nee' |
| 175 | b'ds to be hashed before being use' |
| 176 | b'd by the HMAC algorithm.', |
| 177 | hexdigests = { |
| 178 | hashlib.sha224: '3a854166ac5d9f023f54d517d0b39dbd' |
| 179 | '946770db9c2b95c9f6f565d1', |
| 180 | hashlib.sha256: '9b09ffa71b942fcb27635fbcd5b0e944' |
| 181 | 'bfdc63644f0713938a7f51535c3a35e2', |
| 182 | hashlib.sha384: '6617178e941f020d351e2f254e8fd32c' |
| 183 | '602420feb0b8fb9adccebb82461e99c5' |
| 184 | 'a678cc31e799176d3860e6110c46523e', |
| 185 | hashlib.sha512: 'e37b6a775dc87dbaa4dfa9f96e5e3ffd' |
| 186 | 'debd71f8867289865df5a32d20cdc944' |
| 187 | 'b6022cac3c4982b10d5eeb55c3e4de15' |
| 188 | '134676fb6de0446065c97440fa8c6a58', |
| 189 | }) |
| 190 | |
| 191 | def test_sha224_rfc4231(self): |
| 192 | self._rfc4231_test_cases(hashlib.sha224) |
| 193 | |
| 194 | def test_sha256_rfc4231(self): |
| 195 | self._rfc4231_test_cases(hashlib.sha256) |
| 196 | |
| 197 | def test_sha384_rfc4231(self): |
| 198 | self._rfc4231_test_cases(hashlib.sha384) |
| 199 | |
| 200 | def test_sha512_rfc4231(self): |
| 201 | self._rfc4231_test_cases(hashlib.sha512) |
| 202 | |
| 203 | def test_legacy_block_size_warnings(self): |
| 204 | class MockCrazyHash(object): |
| 205 | """Ain't no block_size attribute here.""" |
| 206 | def __init__(self, *args): |
| 207 | self._x = hashlib.sha1(*args) |
| 208 | self.digest_size = self._x.digest_size |
| 209 | def update(self, v): |
| 210 | self._x.update(v) |
| 211 | def digest(self): |
| 212 | return self._x.digest() |
| 213 | |
Brett Cannon | 1cd0247 | 2008-09-09 01:52:27 +0000 | [diff] [blame] | 214 | with warnings.catch_warnings(): |
Christian Heimes | e25f35e | 2008-03-20 10:49:03 +0000 | [diff] [blame] | 215 | warnings.simplefilter('error', RuntimeWarning) |
Florent Xicluna | 41fe615 | 2010-04-02 18:52:12 +0000 | [diff] [blame] | 216 | with self.assertRaises(RuntimeWarning): |
Guido van Rossum | a19f80c | 2007-11-06 20:51:31 +0000 | [diff] [blame] | 217 | hmac.HMAC(b'a', b'b', digestmod=MockCrazyHash) |
Guido van Rossum | a19f80c | 2007-11-06 20:51:31 +0000 | [diff] [blame] | 218 | self.fail('Expected warning about missing block_size') |
| 219 | |
| 220 | MockCrazyHash.block_size = 1 |
Florent Xicluna | 41fe615 | 2010-04-02 18:52:12 +0000 | [diff] [blame] | 221 | with self.assertRaises(RuntimeWarning): |
Guido van Rossum | a19f80c | 2007-11-06 20:51:31 +0000 | [diff] [blame] | 222 | hmac.HMAC(b'a', b'b', digestmod=MockCrazyHash) |
Guido van Rossum | a19f80c | 2007-11-06 20:51:31 +0000 | [diff] [blame] | 223 | self.fail('Expected warning about small block_size') |
Guido van Rossum | a19f80c | 2007-11-06 20:51:31 +0000 | [diff] [blame] | 224 | |
| 225 | |
Jeremy Hylton | 893801e | 2003-05-27 16:16:41 +0000 | [diff] [blame] | 226 | |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 227 | class ConstructorTestCase(unittest.TestCase): |
Guido van Rossum | 7e8fdba | 2002-08-22 19:38:14 +0000 | [diff] [blame] | 228 | |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 229 | def test_normal(self): |
Guido van Rossum | 7e8fdba | 2002-08-22 19:38:14 +0000 | [diff] [blame] | 230 | # Standard constructor call. |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 231 | failed = 0 |
| 232 | try: |
Guido van Rossum | 39478e8 | 2007-08-27 17:23:59 +0000 | [diff] [blame] | 233 | h = hmac.HMAC(b"key") |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 234 | except: |
| 235 | self.fail("Standard constructor call raised exception.") |
| 236 | |
Antoine Pitrou | 24ef3e9 | 2012-06-30 17:27:56 +0200 | [diff] [blame] | 237 | def test_with_str_key(self): |
| 238 | # Pass a key of type str, which is an error, because it expects a key |
| 239 | # of type bytes |
| 240 | with self.assertRaises(TypeError): |
| 241 | h = hmac.HMAC("key") |
| 242 | |
| 243 | def test_dot_new_with_str_key(self): |
| 244 | # Pass a key of type str, which is an error, because it expects a key |
| 245 | # of type bytes |
| 246 | with self.assertRaises(TypeError): |
| 247 | h = hmac.new("key") |
| 248 | |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 249 | def test_withtext(self): |
Guido van Rossum | 7e8fdba | 2002-08-22 19:38:14 +0000 | [diff] [blame] | 250 | # Constructor call with text. |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 251 | try: |
Guido van Rossum | 39478e8 | 2007-08-27 17:23:59 +0000 | [diff] [blame] | 252 | h = hmac.HMAC(b"key", b"hash this!") |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 253 | except: |
| 254 | self.fail("Constructor call with text argument raised exception.") |
| 255 | |
| 256 | def test_withmodule(self): |
Guido van Rossum | 7e8fdba | 2002-08-22 19:38:14 +0000 | [diff] [blame] | 257 | # Constructor call with text and digest module. |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 258 | try: |
Guido van Rossum | a19f80c | 2007-11-06 20:51:31 +0000 | [diff] [blame] | 259 | h = hmac.HMAC(b"key", b"", hashlib.sha1) |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 260 | except: |
Guido van Rossum | e7ba495 | 2007-06-06 23:52:48 +0000 | [diff] [blame] | 261 | self.fail("Constructor call with hashlib.sha1 raised exception.") |
Tim Peters | 8876848 | 2001-11-13 21:51:26 +0000 | [diff] [blame] | 262 | |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 263 | class SanityTestCase(unittest.TestCase): |
Guido van Rossum | 7e8fdba | 2002-08-22 19:38:14 +0000 | [diff] [blame] | 264 | |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 265 | def test_default_is_md5(self): |
Guido van Rossum | 7e8fdba | 2002-08-22 19:38:14 +0000 | [diff] [blame] | 266 | # Testing if HMAC defaults to MD5 algorithm. |
Gregory P. Smith | f21a5f7 | 2005-08-21 18:45:59 +0000 | [diff] [blame] | 267 | # NOTE: this whitebox test depends on the hmac class internals |
Guido van Rossum | 39478e8 | 2007-08-27 17:23:59 +0000 | [diff] [blame] | 268 | h = hmac.HMAC(b"key") |
Guido van Rossum | e61fd5b | 2007-07-11 12:20:59 +0000 | [diff] [blame] | 269 | self.assertEqual(h.digest_cons, hashlib.md5) |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 270 | |
| 271 | def test_exercise_all_methods(self): |
Guido van Rossum | 7e8fdba | 2002-08-22 19:38:14 +0000 | [diff] [blame] | 272 | # Exercising all methods once. |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 273 | # This must not raise any exceptions |
| 274 | try: |
Guido van Rossum | 39478e8 | 2007-08-27 17:23:59 +0000 | [diff] [blame] | 275 | h = hmac.HMAC(b"my secret key") |
| 276 | h.update(b"compute the hash of this text!") |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 277 | dig = h.digest() |
| 278 | dig = h.hexdigest() |
| 279 | h2 = h.copy() |
| 280 | except: |
Neal Norwitz | 28bb572 | 2002-04-01 19:00:50 +0000 | [diff] [blame] | 281 | self.fail("Exception raised during normal usage of HMAC class.") |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 282 | |
| 283 | class CopyTestCase(unittest.TestCase): |
Guido van Rossum | 7e8fdba | 2002-08-22 19:38:14 +0000 | [diff] [blame] | 284 | |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 285 | def test_attributes(self): |
Guido van Rossum | 7e8fdba | 2002-08-22 19:38:14 +0000 | [diff] [blame] | 286 | # Testing if attributes are of same type. |
Guido van Rossum | 39478e8 | 2007-08-27 17:23:59 +0000 | [diff] [blame] | 287 | h1 = hmac.HMAC(b"key") |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 288 | h2 = h1.copy() |
Benjamin Peterson | c9c0f20 | 2009-06-30 23:06:06 +0000 | [diff] [blame] | 289 | self.assertTrue(h1.digest_cons == h2.digest_cons, |
Gregory P. Smith | f21a5f7 | 2005-08-21 18:45:59 +0000 | [diff] [blame] | 290 | "digest constructors don't match.") |
Guido van Rossum | e61fd5b | 2007-07-11 12:20:59 +0000 | [diff] [blame] | 291 | self.assertEqual(type(h1.inner), type(h2.inner), |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 292 | "Types of inner don't match.") |
Guido van Rossum | e61fd5b | 2007-07-11 12:20:59 +0000 | [diff] [blame] | 293 | self.assertEqual(type(h1.outer), type(h2.outer), |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 294 | "Types of outer don't match.") |
| 295 | |
| 296 | def test_realcopy(self): |
Guido van Rossum | 7e8fdba | 2002-08-22 19:38:14 +0000 | [diff] [blame] | 297 | # Testing if the copy method created a real copy. |
Guido van Rossum | 39478e8 | 2007-08-27 17:23:59 +0000 | [diff] [blame] | 298 | h1 = hmac.HMAC(b"key") |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 299 | h2 = h1.copy() |
Mark Dickinson | a56c467 | 2009-01-27 18:17:45 +0000 | [diff] [blame] | 300 | # Using id() in case somebody has overridden __eq__/__ne__. |
Benjamin Peterson | c9c0f20 | 2009-06-30 23:06:06 +0000 | [diff] [blame] | 301 | self.assertTrue(id(h1) != id(h2), "No real copy of the HMAC instance.") |
| 302 | self.assertTrue(id(h1.inner) != id(h2.inner), |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 303 | "No real copy of the attribute 'inner'.") |
Benjamin Peterson | c9c0f20 | 2009-06-30 23:06:06 +0000 | [diff] [blame] | 304 | self.assertTrue(id(h1.outer) != id(h2.outer), |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 305 | "No real copy of the attribute 'outer'.") |
| 306 | |
| 307 | def test_equality(self): |
Guido van Rossum | 7e8fdba | 2002-08-22 19:38:14 +0000 | [diff] [blame] | 308 | # Testing if the copy has the same digests. |
Guido van Rossum | 39478e8 | 2007-08-27 17:23:59 +0000 | [diff] [blame] | 309 | h1 = hmac.HMAC(b"key") |
| 310 | h1.update(b"some random text") |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 311 | h2 = h1.copy() |
Guido van Rossum | e61fd5b | 2007-07-11 12:20:59 +0000 | [diff] [blame] | 312 | self.assertEqual(h1.digest(), h2.digest(), |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 313 | "Digest of copy doesn't match original digest.") |
Guido van Rossum | e61fd5b | 2007-07-11 12:20:59 +0000 | [diff] [blame] | 314 | self.assertEqual(h1.hexdigest(), h2.hexdigest(), |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 315 | "Hexdigest of copy doesn't match original hexdigest.") |
| 316 | |
Nick Coghlan | 807770e | 2012-06-15 21:14:08 +1000 | [diff] [blame] | 317 | class CompareDigestTestCase(unittest.TestCase): |
Charles-François Natali | 7feb9f4 | 2012-05-13 19:53:07 +0200 | [diff] [blame] | 318 | |
Christian Heimes | 6cea655 | 2012-06-24 13:48:32 +0200 | [diff] [blame] | 319 | def test_compare_digest(self): |
Charles-François Natali | 7feb9f4 | 2012-05-13 19:53:07 +0200 | [diff] [blame] | 320 | # Testing input type exception handling |
| 321 | a, b = 100, 200 |
Nick Coghlan | 807770e | 2012-06-15 21:14:08 +1000 | [diff] [blame] | 322 | self.assertRaises(TypeError, hmac.compare_digest, a, b) |
| 323 | a, b = 100, b"foobar" |
| 324 | self.assertRaises(TypeError, hmac.compare_digest, a, b) |
| 325 | a, b = b"foobar", 200 |
| 326 | self.assertRaises(TypeError, hmac.compare_digest, a, b) |
Charles-François Natali | 7feb9f4 | 2012-05-13 19:53:07 +0200 | [diff] [blame] | 327 | a, b = "foobar", b"foobar" |
Nick Coghlan | 807770e | 2012-06-15 21:14:08 +1000 | [diff] [blame] | 328 | self.assertRaises(TypeError, hmac.compare_digest, a, b) |
| 329 | a, b = b"foobar", "foobar" |
| 330 | self.assertRaises(TypeError, hmac.compare_digest, a, b) |
Nick Coghlan | 807770e | 2012-06-15 21:14:08 +1000 | [diff] [blame] | 331 | |
| 332 | # Testing bytes of different lengths |
| 333 | a, b = b"foobar", b"foo" |
| 334 | self.assertFalse(hmac.compare_digest(a, b)) |
| 335 | a, b = b"\xde\xad\xbe\xef", b"\xde\xad" |
| 336 | self.assertFalse(hmac.compare_digest(a, b)) |
| 337 | |
| 338 | # Testing bytes of same lengths, different values |
| 339 | a, b = b"foobar", b"foobaz" |
| 340 | self.assertFalse(hmac.compare_digest(a, b)) |
| 341 | a, b = b"\xde\xad\xbe\xef", b"\xab\xad\x1d\xea" |
| 342 | self.assertFalse(hmac.compare_digest(a, b)) |
| 343 | |
| 344 | # Testing bytes of same lengths, same values |
Charles-François Natali | 7feb9f4 | 2012-05-13 19:53:07 +0200 | [diff] [blame] | 345 | a, b = b"foobar", b"foobar" |
Nick Coghlan | 807770e | 2012-06-15 21:14:08 +1000 | [diff] [blame] | 346 | self.assertTrue(hmac.compare_digest(a, b)) |
Charles-François Natali | 7feb9f4 | 2012-05-13 19:53:07 +0200 | [diff] [blame] | 347 | a, b = b"\xde\xad\xbe\xef", b"\xde\xad\xbe\xef" |
Nick Coghlan | 807770e | 2012-06-15 21:14:08 +1000 | [diff] [blame] | 348 | self.assertTrue(hmac.compare_digest(a, b)) |
Charles-François Natali | 7feb9f4 | 2012-05-13 19:53:07 +0200 | [diff] [blame] | 349 | |
Christian Heimes | 6cea655 | 2012-06-24 13:48:32 +0200 | [diff] [blame] | 350 | # Testing bytearrays of same lengths, same values |
| 351 | a, b = bytearray(b"foobar"), bytearray(b"foobar") |
| 352 | self.assertTrue(hmac.compare_digest(a, b)) |
| 353 | |
| 354 | # Testing bytearrays of diffeent lengths |
| 355 | a, b = bytearray(b"foobar"), bytearray(b"foo") |
| 356 | self.assertFalse(hmac.compare_digest(a, b)) |
| 357 | |
| 358 | # Testing bytearrays of same lengths, different values |
| 359 | a, b = bytearray(b"foobar"), bytearray(b"foobaz") |
| 360 | self.assertFalse(hmac.compare_digest(a, b)) |
| 361 | |
| 362 | # Testing byte and bytearray of same lengths, same values |
| 363 | a, b = bytearray(b"foobar"), b"foobar" |
| 364 | self.assertTrue(hmac.compare_digest(a, b)) |
| 365 | self.assertTrue(hmac.compare_digest(b, a)) |
| 366 | |
| 367 | # Testing byte bytearray of diffeent lengths |
| 368 | a, b = bytearray(b"foobar"), b"foo" |
| 369 | self.assertFalse(hmac.compare_digest(a, b)) |
| 370 | self.assertFalse(hmac.compare_digest(b, a)) |
| 371 | |
| 372 | # Testing byte and bytearray of same lengths, different values |
| 373 | a, b = bytearray(b"foobar"), b"foobaz" |
| 374 | self.assertFalse(hmac.compare_digest(a, b)) |
| 375 | self.assertFalse(hmac.compare_digest(b, a)) |
| 376 | |
| 377 | # Testing str of same lengths |
| 378 | a, b = "foobar", "foobar" |
| 379 | self.assertTrue(hmac.compare_digest(a, b)) |
| 380 | |
| 381 | # Testing str of diffeent lengths |
| 382 | a, b = "foo", "foobar" |
| 383 | self.assertFalse(hmac.compare_digest(a, b)) |
| 384 | |
| 385 | # Testing bytes of same lengths, different values |
| 386 | a, b = "foobar", "foobaz" |
| 387 | self.assertFalse(hmac.compare_digest(a, b)) |
| 388 | |
| 389 | # Testing error cases |
| 390 | a, b = "foobar", b"foobar" |
| 391 | self.assertRaises(TypeError, hmac.compare_digest, a, b) |
| 392 | a, b = b"foobar", "foobar" |
| 393 | self.assertRaises(TypeError, hmac.compare_digest, a, b) |
| 394 | a, b = b"foobar", 1 |
| 395 | self.assertRaises(TypeError, hmac.compare_digest, a, b) |
| 396 | a, b = 100, 200 |
| 397 | self.assertRaises(TypeError, hmac.compare_digest, a, b) |
| 398 | a, b = "fooä", "fooä" |
| 399 | self.assertRaises(TypeError, hmac.compare_digest, a, b) |
| 400 | |
| 401 | # subclasses are supported by ignore __eq__ |
| 402 | class mystr(str): |
| 403 | def __eq__(self, other): |
| 404 | return False |
| 405 | |
| 406 | a, b = mystr("foobar"), mystr("foobar") |
| 407 | self.assertTrue(hmac.compare_digest(a, b)) |
| 408 | a, b = mystr("foobar"), "foobar" |
| 409 | self.assertTrue(hmac.compare_digest(a, b)) |
| 410 | a, b = mystr("foobar"), mystr("foobaz") |
| 411 | self.assertFalse(hmac.compare_digest(a, b)) |
| 412 | |
| 413 | class mybytes(bytes): |
| 414 | def __eq__(self, other): |
| 415 | return False |
| 416 | |
| 417 | a, b = mybytes(b"foobar"), mybytes(b"foobar") |
| 418 | self.assertTrue(hmac.compare_digest(a, b)) |
| 419 | a, b = mybytes(b"foobar"), b"foobar" |
| 420 | self.assertTrue(hmac.compare_digest(a, b)) |
| 421 | a, b = mybytes(b"foobar"), mybytes(b"foobaz") |
| 422 | self.assertFalse(hmac.compare_digest(a, b)) |
| 423 | |
| 424 | |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 425 | def test_main(): |
Benjamin Peterson | ee8712c | 2008-05-20 21:35:26 +0000 | [diff] [blame] | 426 | support.run_unittest( |
Walter Dörwald | 21d3a32 | 2003-05-01 17:45:56 +0000 | [diff] [blame] | 427 | TestVectorsTestCase, |
| 428 | ConstructorTestCase, |
| 429 | SanityTestCase, |
Charles-François Natali | 7feb9f4 | 2012-05-13 19:53:07 +0200 | [diff] [blame] | 430 | CopyTestCase, |
Nick Coghlan | 807770e | 2012-06-15 21:14:08 +1000 | [diff] [blame] | 431 | CompareDigestTestCase |
Walter Dörwald | 21d3a32 | 2003-05-01 17:45:56 +0000 | [diff] [blame] | 432 | ) |
Andrew M. Kuchling | f792bba | 2001-11-02 21:49:59 +0000 | [diff] [blame] | 433 | |
| 434 | if __name__ == "__main__": |
| 435 | test_main() |