5 # Copyright (C) 2005-2010 Gregory P. Smith (greg@krypto.org)
6 # Licensed to PSF under a Contributor Agreement.
20 from test
import test_support
21 from test
.test_support
import _4G
, precisionbigmemtest
23 # Were we compiled --with-pydebug or with #define Py_DEBUG?
24 COMPILED_WITH_PYDEBUG
= hasattr(sys
, 'gettotalrefcount')
33 r
= r
+ h
[(i
>> 4) & 0xF] + h
[i
& 0xF]
37 class HashLibTestCase(unittest
.TestCase
):
38 supported_hash_names
= ( 'md5', 'MD5', 'sha1', 'SHA1',
39 'sha224', 'SHA224', 'sha256', 'SHA256',
40 'sha384', 'SHA384', 'sha512', 'SHA512' )
42 _warn_on_extension_import
= COMPILED_WITH_PYDEBUG
44 def _conditional_import_module(self
, module_name
):
45 """Import a module and return a reference to it or None on failure."""
47 exec('import '+module_name
)
48 except ImportError, error
:
49 if self
._warn
_on
_extension
_import
:
50 warnings
.warn('Did a C extension fail to compile? %s' % error
)
51 return locals().get(module_name
)
53 def __init__(self
, *args
, **kwargs
):
55 for algorithm
in self
.supported_hash_names
:
56 algorithms
.add(algorithm
.lower())
57 self
.constructors_to_test
= {}
58 for algorithm
in algorithms
:
59 self
.constructors_to_test
[algorithm
] = set()
61 # For each algorithm, test the direct constructor and the use
62 # of hashlib.new given the algorithm name.
63 for algorithm
, constructors
in self
.constructors_to_test
.items():
64 constructors
.add(getattr(hashlib
, algorithm
))
65 def _test_algorithm_via_hashlib_new(data
=None, _alg
=algorithm
):
67 return hashlib
.new(_alg
)
68 return hashlib
.new(_alg
, data
)
69 constructors
.add(_test_algorithm_via_hashlib_new
)
71 _hashlib
= self
._conditional
_import
_module
('_hashlib')
73 # These two algorithms should always be present when this module
74 # is compiled. If not, something was compiled wrong.
75 assert hasattr(_hashlib
, 'openssl_md5')
76 assert hasattr(_hashlib
, 'openssl_sha1')
77 for algorithm
, constructors
in self
.constructors_to_test
.items():
78 constructor
= getattr(_hashlib
, 'openssl_'+algorithm
, None)
80 constructors
.add(constructor
)
82 _md5
= self
._conditional
_import
_module
('_md5')
84 self
.constructors_to_test
['md5'].add(_md5
.new
)
85 _sha
= self
._conditional
_import
_module
('_sha')
87 self
.constructors_to_test
['sha1'].add(_sha
.new
)
88 _sha256
= self
._conditional
_import
_module
('_sha256')
90 self
.constructors_to_test
['sha224'].add(_sha256
.sha224
)
91 self
.constructors_to_test
['sha256'].add(_sha256
.sha256
)
92 _sha512
= self
._conditional
_import
_module
('_sha512')
94 self
.constructors_to_test
['sha384'].add(_sha512
.sha384
)
95 self
.constructors_to_test
['sha512'].add(_sha512
.sha512
)
97 super(HashLibTestCase
, self
).__init
__(*args
, **kwargs
)
99 def test_hash_array(self
):
100 a
= array
.array("b", range(10))
101 constructors
= self
.constructors_to_test
.itervalues()
102 for cons
in itertools
.chain
.from_iterable(constructors
):
106 def test_unknown_hash(self
):
108 hashlib
.new('spam spam spam spam spam')
112 self
.assertTrue(0 == "hashlib didn't reject bogus hash name")
114 def test_hexdigest(self
):
115 for name
in self
.supported_hash_names
:
116 h
= hashlib
.new(name
)
117 self
.assertTrue(hexstr(h
.digest()) == h
.hexdigest())
119 def test_large_update(self
):
123 abcs
= aas
+ bees
+ cees
125 for name
in self
.supported_hash_names
:
126 m1
= hashlib
.new(name
)
131 m2
= hashlib
.new(name
)
133 self
.assertEqual(m1
.digest(), m2
.digest(), name
+' update problem.')
135 m3
= hashlib
.new(name
, abcs
)
136 self
.assertEqual(m1
.digest(), m3
.digest(), name
+' new problem.')
138 def check(self
, name
, data
, digest
):
139 constructors
= self
.constructors_to_test
[name
]
140 # 2 is for hashlib.name(...) and hashlib.new(name, ...)
141 self
.assertGreaterEqual(len(constructors
), 2)
142 for hash_object_constructor
in constructors
:
143 computed
= hash_object_constructor(data
).hexdigest()
146 "Hash algorithm %s constructed using %s returned hexdigest"
147 " %r for %d byte input data that should have hashed to %r."
148 % (name
, hash_object_constructor
,
149 computed
, len(data
), digest
))
151 def check_unicode(self
, algorithm_name
):
152 # Unicode objects are not allowed as input.
153 expected
= hashlib
.new(algorithm_name
, str(u
'spam')).hexdigest()
154 self
.check(algorithm_name
, u
'spam', expected
)
156 def test_unicode(self
):
157 # In python 2.x unicode is auto-encoded to the system default encoding
158 # when passed to hashlib functions.
159 self
.check_unicode('md5')
160 self
.check_unicode('sha1')
161 self
.check_unicode('sha224')
162 self
.check_unicode('sha256')
163 self
.check_unicode('sha384')
164 self
.check_unicode('sha512')
166 def test_case_md5_0(self
):
167 self
.check('md5', '', 'd41d8cd98f00b204e9800998ecf8427e')
169 def test_case_md5_1(self
):
170 self
.check('md5', 'abc', '900150983cd24fb0d6963f7d28e17f72')
172 def test_case_md5_2(self
):
173 self
.check('md5', 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789',
174 'd174ab98d277d9f5a5611c2c9f419d9f')
176 @precisionbigmemtest(size
=_4G
+ 5, memuse
=1)
177 def test_case_md5_huge(self
, size
):
180 self
.check('md5', 'A'*size
, 'c9af2dff37468ce5dfee8f2cfc0a9c6d')
181 except OverflowError:
184 @precisionbigmemtest(size
=_4G
- 1, memuse
=1)
185 def test_case_md5_uintmax(self
, size
):
188 self
.check('md5', 'A'*size
, '28138d306ff1b8281f1a9067e1a1a2b3')
189 except OverflowError:
192 # use the three examples from Federal Information Processing Standards
193 # Publication 180-1, Secure Hash Standard, 1995 April 17
194 # http://www.itl.nist.gov/div897/pubs/fip180-1.htm
196 def test_case_sha1_0(self
):
197 self
.check('sha1', "",
198 "da39a3ee5e6b4b0d3255bfef95601890afd80709")
200 def test_case_sha1_1(self
):
201 self
.check('sha1', "abc",
202 "a9993e364706816aba3e25717850c26c9cd0d89d")
204 def test_case_sha1_2(self
):
205 self
.check('sha1', "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
206 "84983e441c3bd26ebaae4aa1f95129e5e54670f1")
208 def test_case_sha1_3(self
):
209 self
.check('sha1', "a" * 1000000,
210 "34aa973cd4c4daa4f61eeb2bdbad27316534016f")
213 # use the examples from Federal Information Processing Standards
214 # Publication 180-2, Secure Hash Standard, 2002 August 1
215 # http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
217 def test_case_sha224_0(self
):
218 self
.check('sha224', "",
219 "d14a028c2a3a2bc9476102bb288234c415a2b01f828ea62ac5b3e42f")
221 def test_case_sha224_1(self
):
222 self
.check('sha224', "abc",
223 "23097d223405d8228642a477bda255b32aadbce4bda0b3f7e36c9da7")
225 def test_case_sha224_2(self
):
227 "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
228 "75388b16512776cc5dba5da1fd890150b0c6455cb4f58b1952522525")
230 def test_case_sha224_3(self
):
231 self
.check('sha224', "a" * 1000000,
232 "20794655980c91d8bbb4c1ea97618a4bf03f42581948b2ee4ee7ad67")
235 def test_case_sha256_0(self
):
236 self
.check('sha256', "",
237 "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855")
239 def test_case_sha256_1(self
):
240 self
.check('sha256', "abc",
241 "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad")
243 def test_case_sha256_2(self
):
245 "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
246 "248d6a61d20638b8e5c026930c3e6039a33ce45964ff2167f6ecedd419db06c1")
248 def test_case_sha256_3(self
):
249 self
.check('sha256', "a" * 1000000,
250 "cdc76e5c9914fb9281a1c7e284d73e67f1809a48a497200e046d39ccc7112cd0")
253 def test_case_sha384_0(self
):
254 self
.check('sha384', "",
255 "38b060a751ac96384cd9327eb1b1e36a21fdb71114be07434c0cc7bf63f6e1da"+
256 "274edebfe76f65fbd51ad2f14898b95b")
258 def test_case_sha384_1(self
):
259 self
.check('sha384', "abc",
260 "cb00753f45a35e8bb5a03d699ac65007272c32ab0eded1631a8b605a43ff5bed"+
261 "8086072ba1e7cc2358baeca134c825a7")
263 def test_case_sha384_2(self
):
265 "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"+
266 "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu",
267 "09330c33f71147e83d192fc782cd1b4753111b173b3b05d22fa08086e3b0f712"+
268 "fcc7c71a557e2db966c3e9fa91746039")
270 def test_case_sha384_3(self
):
271 self
.check('sha384', "a" * 1000000,
272 "9d0e1809716474cb086e834e310a4a1ced149e9c00f248527972cec5704c2a5b"+
273 "07b8b3dc38ecc4ebae97ddd87f3d8985")
276 def test_case_sha512_0(self
):
277 self
.check('sha512', "",
278 "cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce"+
279 "47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e")
281 def test_case_sha512_1(self
):
282 self
.check('sha512', "abc",
283 "ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a"+
284 "2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f")
286 def test_case_sha512_2(self
):
288 "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"+
289 "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu",
290 "8e959b75dae313da8cf4f72814fc143f8f7779c6eb9f7fa17299aeadb6889018"+
291 "501d289e4900f7e4331b99dec4b5433ac7d329eeb6dd26545e96e55b874be909")
293 def test_case_sha512_3(self
):
294 self
.check('sha512', "a" * 1000000,
295 "e718483d0ce769644e2e42c7bc15b4638e1f98b13b2044285632a803afa973eb"+
296 "de0ff244877ea60a4cb0432ce577c31beb009c5c2c49aa2e4eadb217ad8cc09b")
298 def test_threaded_hashing(self
):
300 raise unittest
.SkipTest('No threading module.')
302 # Updating the same hash object from several threads at once
303 # using data chunk sizes containing the same byte sequences.
305 # If the internal locks are working to prevent multiple
306 # updates on the same object from running at once, the resulting
307 # hash will be the same as doing it single threaded upfront.
308 hasher
= hashlib
.sha1()
310 smallest_data
= 'swineflu'
311 data
= smallest_data
*200000
312 expected_hash
= hashlib
.sha1(data
*num_threads
).hexdigest()
314 def hash_in_chunks(chunk_size
, event
):
316 while index
< len(data
):
317 hasher
.update(data
[index
:index
+chunk_size
])
322 for threadnum
in xrange(num_threads
):
323 chunk_size
= len(data
) // (10**threadnum
)
324 assert chunk_size
> 0
325 assert chunk_size
% len(smallest_data
) == 0
326 event
= threading
.Event()
328 threading
.Thread(target
=hash_in_chunks
,
329 args
=(chunk_size
, event
)).start()
334 self
.assertEqual(expected_hash
, hasher
.hexdigest())
336 @test_support.reap_threads
338 test_support
.run_unittest(HashLibTestCase
)
340 if __name__
== "__main__":