Staging
v0.5.1
v0.5.1
https://github.com/python/cpython
Tip revision: c0a9afe2ac1820409e6173bd1893ebee2cf50270 authored by Ned Deily on 15 August 2020, 06:43:26 UTC
3.6.12
3.6.12
Tip revision: c0a9afe
test_hashlib.py
# Test hashlib module
#
# $Id$
#
# Copyright (C) 2005-2010 Gregory P. Smith (greg@krypto.org)
# Licensed to PSF under a Contributor Agreement.
#
import array
from binascii import unhexlify
import hashlib
import importlib
import itertools
import os
import sys
try:
import threading
except ImportError:
threading = None
import unittest
import warnings
from test import support
from test.support import _4G, bigmemtest, import_fresh_module
from http.client import HTTPException
# Were we compiled --with-pydebug or with #define Py_DEBUG?
COMPILED_WITH_PYDEBUG = hasattr(sys, 'gettotalrefcount')
c_hashlib = import_fresh_module('hashlib', fresh=['_hashlib'])
py_hashlib = import_fresh_module('hashlib', blocked=['_hashlib'])
try:
import _blake2
except ImportError:
_blake2 = None
requires_blake2 = unittest.skipUnless(_blake2, 'requires _blake2')
try:
import _sha3
except ImportError:
_sha3 = None
requires_sha3 = unittest.skipUnless(_sha3, 'requires _sha3')
def hexstr(s):
assert isinstance(s, bytes), repr(s)
h = "0123456789abcdef"
r = ''
for i in s:
r += h[(i >> 4) & 0xF] + h[i & 0xF]
return r
URL = "http://www.pythontest.net/hashlib/{}.txt"
def read_vectors(hash_name):
url = URL.format(hash_name)
try:
testdata = support.open_urlresource(url)
except (OSError, HTTPException):
raise unittest.SkipTest("Could not retrieve {}".format(url))
with testdata:
for line in testdata:
line = line.strip()
if line.startswith('#') or not line:
continue
parts = line.split(',')
parts[0] = bytes.fromhex(parts[0])
yield parts
class HashLibTestCase(unittest.TestCase):
supported_hash_names = ( 'md5', 'MD5', 'sha1', 'SHA1',
'sha224', 'SHA224', 'sha256', 'SHA256',
'sha384', 'SHA384', 'sha512', 'SHA512',
'blake2b', 'blake2s',
'sha3_224', 'sha3_256', 'sha3_384', 'sha3_512',
'shake_128', 'shake_256')
shakes = {'shake_128', 'shake_256'}
# Issue #14693: fallback modules are always compiled under POSIX
_warn_on_extension_import = os.name == 'posix' or COMPILED_WITH_PYDEBUG
def _conditional_import_module(self, module_name):
"""Import a module and return a reference to it or None on failure."""
try:
return importlib.import_module(module_name)
except ModuleNotFoundError as error:
if self._warn_on_extension_import:
warnings.warn('Did a C extension fail to compile? %s' % error)
return None
def __init__(self, *args, **kwargs):
algorithms = set()
for algorithm in self.supported_hash_names:
algorithms.add(algorithm.lower())
_blake2 = self._conditional_import_module('_blake2')
if _blake2:
algorithms.update({'blake2b', 'blake2s'})
self.constructors_to_test = {}
for algorithm in algorithms:
self.constructors_to_test[algorithm] = set()
# For each algorithm, test the direct constructor and the use
# of hashlib.new given the algorithm name.
for algorithm, constructors in self.constructors_to_test.items():
constructors.add(getattr(hashlib, algorithm))
def _test_algorithm_via_hashlib_new(data=None, _alg=algorithm, **kwargs):
if data is None:
return hashlib.new(_alg, **kwargs)
return hashlib.new(_alg, data, **kwargs)
constructors.add(_test_algorithm_via_hashlib_new)
_hashlib = self._conditional_import_module('_hashlib')
if _hashlib:
# These two algorithms should always be present when this module
# is compiled. If not, something was compiled wrong.
self.assertTrue(hasattr(_hashlib, 'openssl_md5'))
self.assertTrue(hasattr(_hashlib, 'openssl_sha1'))
for algorithm, constructors in self.constructors_to_test.items():
constructor = getattr(_hashlib, 'openssl_'+algorithm, None)
if constructor:
constructors.add(constructor)
def add_builtin_constructor(name):
constructor = getattr(hashlib, "__get_builtin_constructor")(name)
self.constructors_to_test[name].add(constructor)
_md5 = self._conditional_import_module('_md5')
if _md5:
add_builtin_constructor('md5')
_sha1 = self._conditional_import_module('_sha1')
if _sha1:
add_builtin_constructor('sha1')
_sha256 = self._conditional_import_module('_sha256')
if _sha256:
add_builtin_constructor('sha224')
add_builtin_constructor('sha256')
_sha512 = self._conditional_import_module('_sha512')
if _sha512:
add_builtin_constructor('sha384')
add_builtin_constructor('sha512')
if _blake2:
add_builtin_constructor('blake2s')
add_builtin_constructor('blake2b')
_sha3 = self._conditional_import_module('_sha3')
if _sha3:
add_builtin_constructor('sha3_224')
add_builtin_constructor('sha3_256')
add_builtin_constructor('sha3_384')
add_builtin_constructor('sha3_512')
add_builtin_constructor('shake_128')
add_builtin_constructor('shake_256')
super(HashLibTestCase, self).__init__(*args, **kwargs)
@property
def hash_constructors(self):
constructors = self.constructors_to_test.values()
return itertools.chain.from_iterable(constructors)
@support.refcount_test
@unittest.skipIf(c_hashlib is None, 'Require _hashlib module')
def test_refleaks_in_hash___init__(self):
gettotalrefcount = support.get_attribute(sys, 'gettotalrefcount')
sha1_hash = c_hashlib.new('sha1')
refs_before = gettotalrefcount()
for i in range(100):
sha1_hash.__init__('sha1')
self.assertAlmostEqual(gettotalrefcount() - refs_before, 0, delta=10)
def test_hash_array(self):
a = array.array("b", range(10))
for cons in self.hash_constructors:
c = cons(a)
if c.name in self.shakes:
c.hexdigest(16)
else:
c.hexdigest()
def test_algorithms_guaranteed(self):
self.assertEqual(hashlib.algorithms_guaranteed,
set(_algo for _algo in self.supported_hash_names
if _algo.islower()))
def test_algorithms_available(self):
self.assertTrue(set(hashlib.algorithms_guaranteed).
issubset(hashlib.algorithms_available))
def test_unknown_hash(self):
self.assertRaises(ValueError, hashlib.new, 'spam spam spam spam spam')
self.assertRaises(TypeError, hashlib.new, 1)
def test_get_builtin_constructor(self):
get_builtin_constructor = getattr(hashlib,
'__get_builtin_constructor')
builtin_constructor_cache = getattr(hashlib,
'__builtin_constructor_cache')
self.assertRaises(ValueError, get_builtin_constructor, 'test')
try:
import _md5
except ImportError:
self.skipTest("_md5 module not available")
# This forces an ImportError for "import _md5" statements
sys.modules['_md5'] = None
# clear the cache
builtin_constructor_cache.clear()
try:
self.assertRaises(ValueError, get_builtin_constructor, 'md5')
finally:
if '_md5' in locals():
sys.modules['_md5'] = _md5
else:
del sys.modules['_md5']
self.assertRaises(TypeError, get_builtin_constructor, 3)
constructor = get_builtin_constructor('md5')
self.assertIs(constructor, _md5.md5)
self.assertEqual(sorted(builtin_constructor_cache), ['MD5', 'md5'])
def test_hexdigest(self):
for cons in self.hash_constructors:
h = cons()
if h.name in self.shakes:
self.assertIsInstance(h.digest(16), bytes)
self.assertEqual(hexstr(h.digest(16)), h.hexdigest(16))
else:
self.assertIsInstance(h.digest(), bytes)
self.assertEqual(hexstr(h.digest()), h.hexdigest())
def test_digest_length_overflow(self):
# See issue #34922
large_sizes = (2**29, 2**32-10, 2**32+10, 2**61, 2**64-10, 2**64+10)
for cons in self.hash_constructors:
h = cons()
if h.name not in self.shakes:
continue
for digest in h.digest, h.hexdigest:
with self.assertRaises((ValueError, OverflowError)):
digest(-10)
for length in large_sizes:
with self.assertRaises((ValueError, OverflowError)):
digest(length)
def test_name_attribute(self):
for cons in self.hash_constructors:
h = cons()
self.assertIsInstance(h.name, str)
if h.name in self.supported_hash_names:
self.assertIn(h.name, self.supported_hash_names)
else:
self.assertNotIn(h.name, self.supported_hash_names)
self.assertEqual(h.name, hashlib.new(h.name).name)
def test_large_update(self):
aas = b'a' * 128
bees = b'b' * 127
cees = b'c' * 126
dees = b'd' * 2048 # HASHLIB_GIL_MINSIZE
for cons in self.hash_constructors:
m1 = cons()
m1.update(aas)
m1.update(bees)
m1.update(cees)
m1.update(dees)
if m1.name in self.shakes:
args = (16,)
else:
args = ()
m2 = cons()
m2.update(aas + bees + cees + dees)
self.assertEqual(m1.digest(*args), m2.digest(*args))
m3 = cons(aas + bees + cees + dees)
self.assertEqual(m1.digest(*args), m3.digest(*args))
# verify copy() doesn't touch original
m4 = cons(aas + bees + cees)
m4_digest = m4.digest(*args)
m4_copy = m4.copy()
m4_copy.update(dees)
self.assertEqual(m1.digest(*args), m4_copy.digest(*args))
self.assertEqual(m4.digest(*args), m4_digest)
def check(self, name, data, hexdigest, shake=False, **kwargs):
length = len(hexdigest)//2
hexdigest = hexdigest.lower()
constructors = self.constructors_to_test[name]
# 2 is for hashlib.name(...) and hashlib.new(name, ...)
self.assertGreaterEqual(len(constructors), 2)
for hash_object_constructor in constructors:
m = hash_object_constructor(data, **kwargs)
computed = m.hexdigest() if not shake else m.hexdigest(length)
self.assertEqual(
computed, hexdigest,
"Hash algorithm %s constructed using %s returned hexdigest"
" %r for %d byte input data that should have hashed to %r."
% (name, hash_object_constructor,
computed, len(data), hexdigest))
computed = m.digest() if not shake else m.digest(length)
digest = bytes.fromhex(hexdigest)
self.assertEqual(computed, digest)
if not shake:
self.assertEqual(len(digest), m.digest_size)
def check_no_unicode(self, algorithm_name):
# Unicode objects are not allowed as input.
constructors = self.constructors_to_test[algorithm_name]
for hash_object_constructor in constructors:
self.assertRaises(TypeError, hash_object_constructor, 'spam')
def test_no_unicode(self):
self.check_no_unicode('md5')
self.check_no_unicode('sha1')
self.check_no_unicode('sha224')
self.check_no_unicode('sha256')
self.check_no_unicode('sha384')
self.check_no_unicode('sha512')
@requires_blake2
def test_no_unicode_blake2(self):
self.check_no_unicode('blake2b')
self.check_no_unicode('blake2s')
@requires_sha3
def test_no_unicode_sha3(self):
self.check_no_unicode('sha3_224')
self.check_no_unicode('sha3_256')
self.check_no_unicode('sha3_384')
self.check_no_unicode('sha3_512')
self.check_no_unicode('shake_128')
self.check_no_unicode('shake_256')
def check_blocksize_name(self, name, block_size=0, digest_size=0,
digest_length=None):
constructors = self.constructors_to_test[name]
for hash_object_constructor in constructors:
m = hash_object_constructor()
self.assertEqual(m.block_size, block_size)
self.assertEqual(m.digest_size, digest_size)
if digest_length:
self.assertEqual(len(m.digest(digest_length)),
digest_length)
self.assertEqual(len(m.hexdigest(digest_length)),
2*digest_length)
else:
self.assertEqual(len(m.digest()), digest_size)
self.assertEqual(len(m.hexdigest()), 2*digest_size)
self.assertEqual(m.name, name)
# split for sha3_512 / _sha3.sha3 object
self.assertIn(name.split("_")[0], repr(m))
def test_blocksize_name(self):
self.check_blocksize_name('md5', 64, 16)
self.check_blocksize_name('sha1', 64, 20)
self.check_blocksize_name('sha224', 64, 28)
self.check_blocksize_name('sha256', 64, 32)
self.check_blocksize_name('sha384', 128, 48)
self.check_blocksize_name('sha512', 128, 64)
@requires_sha3
def test_blocksize_name_sha3(self):
self.check_blocksize_name('sha3_224', 144, 28)
self.check_blocksize_name('sha3_256', 136, 32)
self.check_blocksize_name('sha3_384', 104, 48)
self.check_blocksize_name('sha3_512', 72, 64)
self.check_blocksize_name('shake_128', 168, 0, 32)
self.check_blocksize_name('shake_256', 136, 0, 64)
def check_sha3(self, name, capacity, rate, suffix):
constructors = self.constructors_to_test[name]
for hash_object_constructor in constructors:
m = hash_object_constructor()
self.assertEqual(capacity + rate, 1600)
self.assertEqual(m._capacity_bits, capacity)
self.assertEqual(m._rate_bits, rate)
self.assertEqual(m._suffix, suffix)
@requires_sha3
def test_extra_sha3(self):
self.check_sha3('sha3_224', 448, 1152, b'\x06')
self.check_sha3('sha3_256', 512, 1088, b'\x06')
self.check_sha3('sha3_384', 768, 832, b'\x06')
self.check_sha3('sha3_512', 1024, 576, b'\x06')
self.check_sha3('shake_128', 256, 1344, b'\x1f')
self.check_sha3('shake_256', 512, 1088, b'\x1f')
@requires_blake2
def test_blocksize_name_blake2(self):
self.check_blocksize_name('blake2b', 128, 64)
self.check_blocksize_name('blake2s', 64, 32)
def test_case_md5_0(self):
self.check('md5', b'', 'd41d8cd98f00b204e9800998ecf8427e')
def test_case_md5_1(self):
self.check('md5', b'abc', '900150983cd24fb0d6963f7d28e17f72')
def test_case_md5_2(self):
self.check('md5',
b'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789',
'd174ab98d277d9f5a5611c2c9f419d9f')
@unittest.skipIf(sys.maxsize < _4G + 5, 'test cannot run on 32-bit systems')
@bigmemtest(size=_4G + 5, memuse=1, dry_run=False)
def test_case_md5_huge(self, size):
self.check('md5', b'A'*size, 'c9af2dff37468ce5dfee8f2cfc0a9c6d')
@unittest.skipIf(sys.maxsize < _4G - 1, 'test cannot run on 32-bit systems')
@bigmemtest(size=_4G - 1, memuse=1, dry_run=False)
def test_case_md5_uintmax(self, size):
self.check('md5', b'A'*size, '28138d306ff1b8281f1a9067e1a1a2b3')
# use the three examples from Federal Information Processing Standards
# Publication 180-1, Secure Hash Standard, 1995 April 17
# http://www.itl.nist.gov/div897/pubs/fip180-1.htm
def test_case_sha1_0(self):
self.check('sha1', b"",
"da39a3ee5e6b4b0d3255bfef95601890afd80709")
def test_case_sha1_1(self):
self.check('sha1', b"abc",
"a9993e364706816aba3e25717850c26c9cd0d89d")
def test_case_sha1_2(self):
self.check('sha1',
b"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
"84983e441c3bd26ebaae4aa1f95129e5e54670f1")
def test_case_sha1_3(self):
self.check('sha1', b"a" * 1000000,
"34aa973cd4c4daa4f61eeb2bdbad27316534016f")
# use the examples from Federal Information Processing Standards
# Publication 180-2, Secure Hash Standard, 2002 August 1
# http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
def test_case_sha224_0(self):
self.check('sha224', b"",
"d14a028c2a3a2bc9476102bb288234c415a2b01f828ea62ac5b3e42f")
def test_case_sha224_1(self):
self.check('sha224', b"abc",
"23097d223405d8228642a477bda255b32aadbce4bda0b3f7e36c9da7")
def test_case_sha224_2(self):
self.check('sha224',
b"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
"75388b16512776cc5dba5da1fd890150b0c6455cb4f58b1952522525")
def test_case_sha224_3(self):
self.check('sha224', b"a" * 1000000,
"20794655980c91d8bbb4c1ea97618a4bf03f42581948b2ee4ee7ad67")
def test_case_sha256_0(self):
self.check('sha256', b"",
"e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855")
def test_case_sha256_1(self):
self.check('sha256', b"abc",
"ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad")
def test_case_sha256_2(self):
self.check('sha256',
b"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
"248d6a61d20638b8e5c026930c3e6039a33ce45964ff2167f6ecedd419db06c1")
def test_case_sha256_3(self):
self.check('sha256', b"a" * 1000000,
"cdc76e5c9914fb9281a1c7e284d73e67f1809a48a497200e046d39ccc7112cd0")
def test_case_sha384_0(self):
self.check('sha384', b"",
"38b060a751ac96384cd9327eb1b1e36a21fdb71114be07434c0cc7bf63f6e1da"+
"274edebfe76f65fbd51ad2f14898b95b")
def test_case_sha384_1(self):
self.check('sha384', b"abc",
"cb00753f45a35e8bb5a03d699ac65007272c32ab0eded1631a8b605a43ff5bed"+
"8086072ba1e7cc2358baeca134c825a7")
def test_case_sha384_2(self):
self.check('sha384',
b"abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"+
b"hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu",
"09330c33f71147e83d192fc782cd1b4753111b173b3b05d22fa08086e3b0f712"+
"fcc7c71a557e2db966c3e9fa91746039")
def test_case_sha384_3(self):
self.check('sha384', b"a" * 1000000,
"9d0e1809716474cb086e834e310a4a1ced149e9c00f248527972cec5704c2a5b"+
"07b8b3dc38ecc4ebae97ddd87f3d8985")
def test_case_sha512_0(self):
self.check('sha512', b"",
"cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce"+
"47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e")
def test_case_sha512_1(self):
self.check('sha512', b"abc",
"ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a"+
"2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f")
def test_case_sha512_2(self):
self.check('sha512',
b"abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"+
b"hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu",
"8e959b75dae313da8cf4f72814fc143f8f7779c6eb9f7fa17299aeadb6889018"+
"501d289e4900f7e4331b99dec4b5433ac7d329eeb6dd26545e96e55b874be909")
def test_case_sha512_3(self):
self.check('sha512', b"a" * 1000000,
"e718483d0ce769644e2e42c7bc15b4638e1f98b13b2044285632a803afa973eb"+
"de0ff244877ea60a4cb0432ce577c31beb009c5c2c49aa2e4eadb217ad8cc09b")
def check_blake2(self, constructor, salt_size, person_size, key_size,
digest_size, max_offset):
self.assertEqual(constructor.SALT_SIZE, salt_size)
for i in range(salt_size + 1):
constructor(salt=b'a' * i)
salt = b'a' * (salt_size + 1)
self.assertRaises(ValueError, constructor, salt=salt)
self.assertEqual(constructor.PERSON_SIZE, person_size)
for i in range(person_size+1):
constructor(person=b'a' * i)
person = b'a' * (person_size + 1)
self.assertRaises(ValueError, constructor, person=person)
self.assertEqual(constructor.MAX_DIGEST_SIZE, digest_size)
for i in range(1, digest_size + 1):
constructor(digest_size=i)
self.assertRaises(ValueError, constructor, digest_size=-1)
self.assertRaises(ValueError, constructor, digest_size=0)
self.assertRaises(ValueError, constructor, digest_size=digest_size+1)
self.assertEqual(constructor.MAX_KEY_SIZE, key_size)
for i in range(key_size+1):
constructor(key=b'a' * i)
key = b'a' * (key_size + 1)
self.assertRaises(ValueError, constructor, key=key)
self.assertEqual(constructor().hexdigest(),
constructor(key=b'').hexdigest())
for i in range(0, 256):
constructor(fanout=i)
self.assertRaises(ValueError, constructor, fanout=-1)
self.assertRaises(ValueError, constructor, fanout=256)
for i in range(1, 256):
constructor(depth=i)
self.assertRaises(ValueError, constructor, depth=-1)
self.assertRaises(ValueError, constructor, depth=0)
self.assertRaises(ValueError, constructor, depth=256)
for i in range(0, 256):
constructor(node_depth=i)
self.assertRaises(ValueError, constructor, node_depth=-1)
self.assertRaises(ValueError, constructor, node_depth=256)
for i in range(0, digest_size + 1):
constructor(inner_size=i)
self.assertRaises(ValueError, constructor, inner_size=-1)
self.assertRaises(ValueError, constructor, inner_size=digest_size+1)
constructor(leaf_size=0)
constructor(leaf_size=(1<<32)-1)
self.assertRaises(OverflowError, constructor, leaf_size=-1)
self.assertRaises(OverflowError, constructor, leaf_size=1<<32)
constructor(node_offset=0)
constructor(node_offset=max_offset)
self.assertRaises(OverflowError, constructor, node_offset=-1)
self.assertRaises(OverflowError, constructor, node_offset=max_offset+1)
self.assertRaises(TypeError, constructor, data=b'')
self.assertRaises(TypeError, constructor, string=b'')
self.assertRaises(TypeError, constructor, '')
constructor(
b'',
key=b'',
salt=b'',
person=b'',
digest_size=17,
fanout=1,
depth=1,
leaf_size=256,
node_offset=512,
node_depth=1,
inner_size=7,
last_node=True
)
def blake2_rfc7693(self, constructor, md_len, in_len):
def selftest_seq(length, seed):
mask = (1<<32)-1
a = (0xDEAD4BAD * seed) & mask
b = 1
out = bytearray(length)
for i in range(length):
t = (a + b) & mask
a, b = b, t
out[i] = (t >> 24) & 0xFF
return out
outer = constructor(digest_size=32)
for outlen in md_len:
for inlen in in_len:
indata = selftest_seq(inlen, inlen)
key = selftest_seq(outlen, outlen)
unkeyed = constructor(indata, digest_size=outlen)
outer.update(unkeyed.digest())
keyed = constructor(indata, key=key, digest_size=outlen)
outer.update(keyed.digest())
return outer.hexdigest()
@requires_blake2
def test_blake2b(self):
self.check_blake2(hashlib.blake2b, 16, 16, 64, 64, (1<<64)-1)
b2b_md_len = [20, 32, 48, 64]
b2b_in_len = [0, 3, 128, 129, 255, 1024]
self.assertEqual(
self.blake2_rfc7693(hashlib.blake2b, b2b_md_len, b2b_in_len),
"c23a7800d98123bd10f506c61e29da5603d763b8bbad2e737f5e765a7bccd475")
@requires_blake2
def test_case_blake2b_0(self):
self.check('blake2b', b"",
"786a02f742015903c6c6fd852552d272912f4740e15847618a86e217f71f5419"+
"d25e1031afee585313896444934eb04b903a685b1448b755d56f701afe9be2ce")
@requires_blake2
def test_case_blake2b_1(self):
self.check('blake2b', b"abc",
"ba80a53f981c4d0d6a2797b69f12f6e94c212f14685ac4b74b12bb6fdbffa2d1"+
"7d87c5392aab792dc252d5de4533cc9518d38aa8dbf1925ab92386edd4009923")
@requires_blake2
def test_case_blake2b_all_parameters(self):
# This checks that all the parameters work in general, and also that
# parameter byte order doesn't get confused on big endian platforms.
self.check('blake2b', b"foo",
"920568b0c5873b2f0ab67bedb6cf1b2b",
digest_size=16,
key=b"bar",
salt=b"baz",
person=b"bing",
fanout=2,
depth=3,
leaf_size=4,
node_offset=5,
node_depth=6,
inner_size=7,
last_node=True)
@requires_blake2
def test_blake2b_vectors(self):
for msg, key, md in read_vectors('blake2b'):
key = bytes.fromhex(key)
self.check('blake2b', msg, md, key=key)
@requires_blake2
def test_blake2s(self):
self.check_blake2(hashlib.blake2s, 8, 8, 32, 32, (1<<48)-1)
b2s_md_len = [16, 20, 28, 32]
b2s_in_len = [0, 3, 64, 65, 255, 1024]
self.assertEqual(
self.blake2_rfc7693(hashlib.blake2s, b2s_md_len, b2s_in_len),
"6a411f08ce25adcdfb02aba641451cec53c598b24f4fc787fbdc88797f4c1dfe")
@requires_blake2
def test_case_blake2s_0(self):
self.check('blake2s', b"",
"69217a3079908094e11121d042354a7c1f55b6482ca1a51e1b250dfd1ed0eef9")
@requires_blake2
def test_case_blake2s_1(self):
self.check('blake2s', b"abc",
"508c5e8c327c14e2e1a72ba34eeb452f37458b209ed63a294d999b4c86675982")
@requires_blake2
def test_case_blake2s_all_parameters(self):
# This checks that all the parameters work in general, and also that
# parameter byte order doesn't get confused on big endian platforms.
self.check('blake2s', b"foo",
"bf2a8f7fe3c555012a6f8046e646bc75",
digest_size=16,
key=b"bar",
salt=b"baz",
person=b"bing",
fanout=2,
depth=3,
leaf_size=4,
node_offset=5,
node_depth=6,
inner_size=7,
last_node=True)
@requires_blake2
def test_blake2s_vectors(self):
for msg, key, md in read_vectors('blake2s'):
key = bytes.fromhex(key)
self.check('blake2s', msg, md, key=key)
@requires_sha3
def test_case_sha3_224_0(self):
self.check('sha3_224', b"",
"6b4e03423667dbb73b6e15454f0eb1abd4597f9a1b078e3f5b5a6bc7")
@requires_sha3
def test_case_sha3_224_vector(self):
for msg, md in read_vectors('sha3_224'):
self.check('sha3_224', msg, md)
@requires_sha3
def test_case_sha3_256_0(self):
self.check('sha3_256', b"",
"a7ffc6f8bf1ed76651c14756a061d662f580ff4de43b49fa82d80a4b80f8434a")
@requires_sha3
def test_case_sha3_256_vector(self):
for msg, md in read_vectors('sha3_256'):
self.check('sha3_256', msg, md)
@requires_sha3
def test_case_sha3_384_0(self):
self.check('sha3_384', b"",
"0c63a75b845e4f7d01107d852e4c2485c51a50aaaa94fc61995e71bbee983a2a"+
"c3713831264adb47fb6bd1e058d5f004")
@requires_sha3
def test_case_sha3_384_vector(self):
for msg, md in read_vectors('sha3_384'):
self.check('sha3_384', msg, md)
@requires_sha3
def test_case_sha3_512_0(self):
self.check('sha3_512', b"",
"a69f73cca23a9ac5c8b567dc185a756e97c982164fe25859e0d1dcc1475c80a6"+
"15b2123af1f5f94c11e3e9402c3ac558f500199d95b6d3e301758586281dcd26")
@requires_sha3
def test_case_sha3_512_vector(self):
for msg, md in read_vectors('sha3_512'):
self.check('sha3_512', msg, md)
@requires_sha3
def test_case_shake_128_0(self):
self.check('shake_128', b"",
"7f9c2ba4e88f827d616045507605853ed73b8093f6efbc88eb1a6eacfa66ef26",
True)
self.check('shake_128', b"", "7f9c", True)
@requires_sha3
def test_case_shake128_vector(self):
for msg, md in read_vectors('shake_128'):
self.check('shake_128', msg, md, True)
@requires_sha3
def test_case_shake_256_0(self):
self.check('shake_256', b"",
"46b9dd2b0ba88d13233b3feb743eeb243fcd52ea62b81b82b50c27646ed5762f",
True)
self.check('shake_256', b"", "46b9", True)
@requires_sha3
def test_case_shake256_vector(self):
for msg, md in read_vectors('shake_256'):
self.check('shake_256', msg, md, True)
def test_gil(self):
# Check things work fine with an input larger than the size required
# for multithreaded operation (which is hardwired to 2048).
gil_minsize = 2048
for cons in self.hash_constructors:
m = cons()
m.update(b'1')
m.update(b'#' * gil_minsize)
m.update(b'1')
m = cons(b'x' * gil_minsize)
m.update(b'1')
m = hashlib.md5()
m.update(b'1')
m.update(b'#' * gil_minsize)
m.update(b'1')
self.assertEqual(m.hexdigest(), 'cb1e1a2cbc80be75e19935d621fb9b21')
m = hashlib.md5(b'x' * gil_minsize)
self.assertEqual(m.hexdigest(), 'cfb767f225d58469c5de3632a8803958')
@unittest.skipUnless(threading, 'Threading required for this test.')
@support.reap_threads
def test_threaded_hashing(self):
# Updating the same hash object from several threads at once
# using data chunk sizes containing the same byte sequences.
#
# If the internal locks are working to prevent multiple
# updates on the same object from running at once, the resulting
# hash will be the same as doing it single threaded upfront.
hasher = hashlib.sha1()
num_threads = 5
smallest_data = b'swineflu'
data = smallest_data * 200000
expected_hash = hashlib.sha1(data*num_threads).hexdigest()
def hash_in_chunks(chunk_size):
index = 0
while index < len(data):
hasher.update(data[index:index + chunk_size])
index += chunk_size
threads = []
for threadnum in range(num_threads):
chunk_size = len(data) // (10 ** threadnum)
self.assertGreater(chunk_size, 0)
self.assertEqual(chunk_size % len(smallest_data), 0)
thread = threading.Thread(target=hash_in_chunks,
args=(chunk_size,))
threads.append(thread)
for thread in threads:
thread.start()
for thread in threads:
thread.join()
self.assertEqual(expected_hash, hasher.hexdigest())
class KDFTests(unittest.TestCase):
pbkdf2_test_vectors = [
(b'password', b'salt', 1, None),
(b'password', b'salt', 2, None),
(b'password', b'salt', 4096, None),
# too slow, it takes over a minute on a fast CPU.
#(b'password', b'salt', 16777216, None),
(b'passwordPASSWORDpassword', b'saltSALTsaltSALTsaltSALTsaltSALTsalt',
4096, -1),
(b'pass\0word', b'sa\0lt', 4096, 16),
]
scrypt_test_vectors = [
(b'', b'', 16, 1, 1, unhexlify('77d6576238657b203b19ca42c18a0497f16b4844e3074ae8dfdffa3fede21442fcd0069ded0948f8326a753a0fc81f17e8d3e0fb2e0d3628cf35e20c38d18906')),
(b'password', b'NaCl', 1024, 8, 16, unhexlify('fdbabe1c9d3472007856e7190d01e9fe7c6ad7cbc8237830e77376634b3731622eaf30d92e22a3886ff109279d9830dac727afb94a83ee6d8360cbdfa2cc0640')),
(b'pleaseletmein', b'SodiumChloride', 16384, 8, 1, unhexlify('7023bdcb3afd7348461c06cd81fd38ebfda8fbba904f8e3ea9b543f6545da1f2d5432955613f0fcf62d49705242a9af9e61e85dc0d651e40dfcf017b45575887')),
]
pbkdf2_results = {
"sha1": [
# official test vectors from RFC 6070
(bytes.fromhex('0c60c80f961f0e71f3a9b524af6012062fe037a6'), None),
(bytes.fromhex('ea6c014dc72d6f8ccd1ed92ace1d41f0d8de8957'), None),
(bytes.fromhex('4b007901b765489abead49d926f721d065a429c1'), None),
#(bytes.fromhex('eefe3d61cd4da4e4e9945b3d6ba2158c2634e984'), None),
(bytes.fromhex('3d2eec4fe41c849b80c8d83662c0e44a8b291a964c'
'f2f07038'), 25),
(bytes.fromhex('56fa6aa75548099dcc37d7f03425e0c3'), None),],
"sha256": [
(bytes.fromhex('120fb6cffcf8b32c43e7225256c4f837'
'a86548c92ccc35480805987cb70be17b'), None),
(bytes.fromhex('ae4d0c95af6b46d32d0adff928f06dd0'
'2a303f8ef3c251dfd6e2d85a95474c43'), None),
(bytes.fromhex('c5e478d59288c841aa530db6845c4c8d'
'962893a001ce4e11a4963873aa98134a'), None),
#(bytes.fromhex('cf81c66fe8cfc04d1f31ecb65dab4089'
# 'f7f179e89b3b0bcb17ad10e3ac6eba46'), None),
(bytes.fromhex('348c89dbcbd32b2f32d814b8116e84cf2b17'
'347ebc1800181c4e2a1fb8dd53e1c635518c7dac47e9'), 40),
(bytes.fromhex('89b69d0516f829893c696226650a8687'), None),],
"sha512": [
(bytes.fromhex('867f70cf1ade02cff3752599a3a53dc4af34c7a669815ae5'
'd513554e1c8cf252c02d470a285a0501bad999bfe943c08f'
'050235d7d68b1da55e63f73b60a57fce'), None),
(bytes.fromhex('e1d9c16aa681708a45f5c7c4e215ceb66e011a2e9f004071'
'3f18aefdb866d53cf76cab2868a39b9f7840edce4fef5a82'
'be67335c77a6068e04112754f27ccf4e'), None),
(bytes.fromhex('d197b1b33db0143e018b12f3d1d1479e6cdebdcc97c5c0f8'
'7f6902e072f457b5143f30602641b3d55cd335988cb36b84'
'376060ecd532e039b742a239434af2d5'), None),
(bytes.fromhex('8c0511f4c6e597c6ac6315d8f0362e225f3c501495ba23b8'
'68c005174dc4ee71115b59f9e60cd9532fa33e0f75aefe30'
'225c583a186cd82bd4daea9724a3d3b8'), 64),
(bytes.fromhex('9d9e9c4cd21fe4be24d5b8244c759665'), None),],
}
def _test_pbkdf2_hmac(self, pbkdf2):
for digest_name, results in self.pbkdf2_results.items():
for i, vector in enumerate(self.pbkdf2_test_vectors):
password, salt, rounds, dklen = vector
expected, overwrite_dklen = results[i]
if overwrite_dklen:
dklen = overwrite_dklen
out = pbkdf2(digest_name, password, salt, rounds, dklen)
self.assertEqual(out, expected,
(digest_name, password, salt, rounds, dklen))
out = pbkdf2(digest_name, memoryview(password),
memoryview(salt), rounds, dklen)
out = pbkdf2(digest_name, bytearray(password),
bytearray(salt), rounds, dklen)
self.assertEqual(out, expected)
if dklen is None:
out = pbkdf2(digest_name, password, salt, rounds)
self.assertEqual(out, expected,
(digest_name, password, salt, rounds))
self.assertRaises(TypeError, pbkdf2, b'sha1', b'pass', b'salt', 1)
self.assertRaises(TypeError, pbkdf2, 'sha1', 'pass', 'salt', 1)
self.assertRaises(ValueError, pbkdf2, 'sha1', b'pass', b'salt', 0)
self.assertRaises(ValueError, pbkdf2, 'sha1', b'pass', b'salt', -1)
self.assertRaises(ValueError, pbkdf2, 'sha1', b'pass', b'salt', 1, 0)
self.assertRaises(ValueError, pbkdf2, 'sha1', b'pass', b'salt', 1, -1)
with self.assertRaisesRegex(ValueError, 'unsupported hash type'):
pbkdf2('unknown', b'pass', b'salt', 1)
out = pbkdf2(hash_name='sha1', password=b'password', salt=b'salt',
iterations=1, dklen=None)
self.assertEqual(out, self.pbkdf2_results['sha1'][0][0])
def test_pbkdf2_hmac_py(self):
self._test_pbkdf2_hmac(py_hashlib.pbkdf2_hmac)
@unittest.skipUnless(hasattr(c_hashlib, 'pbkdf2_hmac'),
' test requires OpenSSL > 1.0')
def test_pbkdf2_hmac_c(self):
self._test_pbkdf2_hmac(c_hashlib.pbkdf2_hmac)
@unittest.skipUnless(hasattr(c_hashlib, 'scrypt'),
' test requires OpenSSL > 1.1')
def test_scrypt(self):
for password, salt, n, r, p, expected in self.scrypt_test_vectors:
result = hashlib.scrypt(password, salt=salt, n=n, r=r, p=p)
self.assertEqual(result, expected)
# this values should work
hashlib.scrypt(b'password', salt=b'salt', n=2, r=8, p=1)
# password and salt must be bytes-like
with self.assertRaises(TypeError):
hashlib.scrypt('password', salt=b'salt', n=2, r=8, p=1)
with self.assertRaises(TypeError):
hashlib.scrypt(b'password', salt='salt', n=2, r=8, p=1)
# require keyword args
with self.assertRaises(TypeError):
hashlib.scrypt(b'password')
with self.assertRaises(TypeError):
hashlib.scrypt(b'password', b'salt')
with self.assertRaises(TypeError):
hashlib.scrypt(b'password', 2, 8, 1, salt=b'salt')
for n in [-1, 0, 1, None]:
with self.assertRaises((ValueError, OverflowError, TypeError)):
hashlib.scrypt(b'password', salt=b'salt', n=n, r=8, p=1)
for r in [-1, 0, None]:
with self.assertRaises((ValueError, OverflowError, TypeError)):
hashlib.scrypt(b'password', salt=b'salt', n=2, r=r, p=1)
for p in [-1, 0, None]:
with self.assertRaises((ValueError, OverflowError, TypeError)):
hashlib.scrypt(b'password', salt=b'salt', n=2, r=8, p=p)
for maxmem in [-1, None]:
with self.assertRaises((ValueError, OverflowError, TypeError)):
hashlib.scrypt(b'password', salt=b'salt', n=2, r=8, p=1,
maxmem=maxmem)
for dklen in [-1, None]:
with self.assertRaises((ValueError, OverflowError, TypeError)):
hashlib.scrypt(b'password', salt=b'salt', n=2, r=8, p=1,
dklen=dklen)
if __name__ == "__main__":
unittest.main()
