mirror of https://github.com/python/cpython
1105 lines
44 KiB
Python
1105 lines
44 KiB
Python
# Test hashlib module
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#
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# $Id$
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#
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# Copyright (C) 2005-2010 Gregory P. Smith (greg@krypto.org)
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# Licensed to PSF under a Contributor Agreement.
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#
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import array
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from binascii import unhexlify
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import hashlib
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import importlib
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import itertools
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import os
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import sys
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import sysconfig
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import threading
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import unittest
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import warnings
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from test import support
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from test.support import _4G, bigmemtest
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from test.support.import_helper import import_fresh_module
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from test.support import threading_helper
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from test.support import warnings_helper
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from http.client import HTTPException
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# Were we compiled --with-pydebug or with #define Py_DEBUG?
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COMPILED_WITH_PYDEBUG = hasattr(sys, 'gettotalrefcount')
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# default builtin hash module
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default_builtin_hashes = {'md5', 'sha1', 'sha256', 'sha512', 'sha3', 'blake2'}
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# --with-builtin-hashlib-hashes override
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builtin_hashes = sysconfig.get_config_var("PY_BUILTIN_HASHLIB_HASHES")
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if builtin_hashes is None:
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builtin_hashes = default_builtin_hashes
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else:
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builtin_hashes = {
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m.strip() for m in builtin_hashes.strip('"').lower().split(",")
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}
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# hashlib with and without OpenSSL backend for PBKDF2
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# only import builtin_hashlib when all builtin hashes are available.
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# Otherwise import prints noise on stderr
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openssl_hashlib = import_fresh_module('hashlib', fresh=['_hashlib'])
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if builtin_hashes == default_builtin_hashes:
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builtin_hashlib = import_fresh_module('hashlib', blocked=['_hashlib'])
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else:
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builtin_hashlib = None
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try:
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from _hashlib import HASH, HASHXOF, openssl_md_meth_names, get_fips_mode
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except ImportError:
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HASH = None
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HASHXOF = None
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openssl_md_meth_names = frozenset()
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def get_fips_mode():
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return 0
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try:
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import _blake2
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except ImportError:
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_blake2 = None
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requires_blake2 = unittest.skipUnless(_blake2, 'requires _blake2')
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def hexstr(s):
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assert isinstance(s, bytes), repr(s)
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h = "0123456789abcdef"
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r = ''
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for i in s:
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r += h[(i >> 4) & 0xF] + h[i & 0xF]
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return r
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URL = "http://www.pythontest.net/hashlib/{}.txt"
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def read_vectors(hash_name):
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url = URL.format(hash_name)
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try:
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testdata = support.open_urlresource(url, encoding="utf-8")
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except (OSError, HTTPException):
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raise unittest.SkipTest("Could not retrieve {}".format(url))
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with testdata:
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for line in testdata:
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line = line.strip()
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if line.startswith('#') or not line:
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continue
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parts = line.split(',')
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parts[0] = bytes.fromhex(parts[0])
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yield parts
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class HashLibTestCase(unittest.TestCase):
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supported_hash_names = ( 'md5', 'MD5', 'sha1', 'SHA1',
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'sha224', 'SHA224', 'sha256', 'SHA256',
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'sha384', 'SHA384', 'sha512', 'SHA512',
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'blake2b', 'blake2s',
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'sha3_224', 'sha3_256', 'sha3_384', 'sha3_512',
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'shake_128', 'shake_256')
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shakes = {'shake_128', 'shake_256'}
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# Issue #14693: fallback modules are always compiled under POSIX
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_warn_on_extension_import = os.name == 'posix' or COMPILED_WITH_PYDEBUG
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def _conditional_import_module(self, module_name):
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"""Import a module and return a reference to it or None on failure."""
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try:
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return importlib.import_module(module_name)
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except ModuleNotFoundError as error:
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if self._warn_on_extension_import and module_name in builtin_hashes:
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warnings.warn('Did a C extension fail to compile? %s' % error)
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return None
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def __init__(self, *args, **kwargs):
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algorithms = set()
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for algorithm in self.supported_hash_names:
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algorithms.add(algorithm.lower())
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_blake2 = self._conditional_import_module('_blake2')
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if _blake2:
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algorithms.update({'blake2b', 'blake2s'})
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self.constructors_to_test = {}
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for algorithm in algorithms:
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self.constructors_to_test[algorithm] = set()
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# For each algorithm, test the direct constructor and the use
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# of hashlib.new given the algorithm name.
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for algorithm, constructors in self.constructors_to_test.items():
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constructors.add(getattr(hashlib, algorithm))
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def _test_algorithm_via_hashlib_new(data=None, _alg=algorithm, **kwargs):
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if data is None:
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return hashlib.new(_alg, **kwargs)
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return hashlib.new(_alg, data, **kwargs)
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constructors.add(_test_algorithm_via_hashlib_new)
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_hashlib = self._conditional_import_module('_hashlib')
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self._hashlib = _hashlib
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if _hashlib:
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# These two algorithms should always be present when this module
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# is compiled. If not, something was compiled wrong.
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self.assertTrue(hasattr(_hashlib, 'openssl_md5'))
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self.assertTrue(hasattr(_hashlib, 'openssl_sha1'))
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for algorithm, constructors in self.constructors_to_test.items():
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constructor = getattr(_hashlib, 'openssl_'+algorithm, None)
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if constructor:
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try:
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constructor()
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except ValueError:
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# default constructor blocked by crypto policy
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pass
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else:
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constructors.add(constructor)
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def add_builtin_constructor(name):
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constructor = getattr(hashlib, "__get_builtin_constructor")(name)
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self.constructors_to_test[name].add(constructor)
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_md5 = self._conditional_import_module('_md5')
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if _md5:
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add_builtin_constructor('md5')
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_sha1 = self._conditional_import_module('_sha1')
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if _sha1:
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add_builtin_constructor('sha1')
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_sha256 = self._conditional_import_module('_sha256')
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if _sha256:
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add_builtin_constructor('sha224')
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add_builtin_constructor('sha256')
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_sha512 = self._conditional_import_module('_sha512')
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if _sha512:
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add_builtin_constructor('sha384')
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add_builtin_constructor('sha512')
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if _blake2:
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add_builtin_constructor('blake2s')
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add_builtin_constructor('blake2b')
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_sha3 = self._conditional_import_module('_sha3')
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if _sha3:
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add_builtin_constructor('sha3_224')
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add_builtin_constructor('sha3_256')
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add_builtin_constructor('sha3_384')
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add_builtin_constructor('sha3_512')
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add_builtin_constructor('shake_128')
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add_builtin_constructor('shake_256')
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super(HashLibTestCase, self).__init__(*args, **kwargs)
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@property
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def hash_constructors(self):
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constructors = self.constructors_to_test.values()
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return itertools.chain.from_iterable(constructors)
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@property
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def is_fips_mode(self):
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return get_fips_mode()
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def test_hash_array(self):
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a = array.array("b", range(10))
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for cons in self.hash_constructors:
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c = cons(a, usedforsecurity=False)
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if c.name in self.shakes:
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c.hexdigest(16)
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else:
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c.hexdigest()
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def test_algorithms_guaranteed(self):
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self.assertEqual(hashlib.algorithms_guaranteed,
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set(_algo for _algo in self.supported_hash_names
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if _algo.islower()))
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def test_algorithms_available(self):
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self.assertTrue(set(hashlib.algorithms_guaranteed).
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issubset(hashlib.algorithms_available))
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def test_usedforsecurity_true(self):
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hashlib.new("sha256", usedforsecurity=True)
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if self.is_fips_mode:
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self.skipTest("skip in FIPS mode")
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for cons in self.hash_constructors:
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cons(usedforsecurity=True)
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cons(b'', usedforsecurity=True)
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hashlib.new("md5", usedforsecurity=True)
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hashlib.md5(usedforsecurity=True)
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if self._hashlib is not None:
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self._hashlib.new("md5", usedforsecurity=True)
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self._hashlib.openssl_md5(usedforsecurity=True)
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def test_usedforsecurity_false(self):
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hashlib.new("sha256", usedforsecurity=False)
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for cons in self.hash_constructors:
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cons(usedforsecurity=False)
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cons(b'', usedforsecurity=False)
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hashlib.new("md5", usedforsecurity=False)
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hashlib.md5(usedforsecurity=False)
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if self._hashlib is not None:
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self._hashlib.new("md5", usedforsecurity=False)
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self._hashlib.openssl_md5(usedforsecurity=False)
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def test_unknown_hash(self):
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self.assertRaises(ValueError, hashlib.new, 'spam spam spam spam spam')
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self.assertRaises(TypeError, hashlib.new, 1)
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def test_new_upper_to_lower(self):
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self.assertEqual(hashlib.new("SHA256").name, "sha256")
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def test_get_builtin_constructor(self):
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get_builtin_constructor = getattr(hashlib,
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'__get_builtin_constructor')
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builtin_constructor_cache = getattr(hashlib,
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'__builtin_constructor_cache')
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self.assertRaises(ValueError, get_builtin_constructor, 'test')
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try:
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import _md5
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except ImportError:
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self.skipTest("_md5 module not available")
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# This forces an ImportError for "import _md5" statements
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sys.modules['_md5'] = None
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# clear the cache
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builtin_constructor_cache.clear()
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try:
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self.assertRaises(ValueError, get_builtin_constructor, 'md5')
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finally:
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if '_md5' in locals():
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sys.modules['_md5'] = _md5
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else:
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del sys.modules['_md5']
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self.assertRaises(TypeError, get_builtin_constructor, 3)
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constructor = get_builtin_constructor('md5')
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self.assertIs(constructor, _md5.md5)
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self.assertEqual(sorted(builtin_constructor_cache), ['MD5', 'md5'])
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def test_hexdigest(self):
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for cons in self.hash_constructors:
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h = cons(usedforsecurity=False)
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if h.name in self.shakes:
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self.assertIsInstance(h.digest(16), bytes)
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self.assertEqual(hexstr(h.digest(16)), h.hexdigest(16))
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else:
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self.assertIsInstance(h.digest(), bytes)
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self.assertEqual(hexstr(h.digest()), h.hexdigest())
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def test_digest_length_overflow(self):
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# See issue #34922
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large_sizes = (2**29, 2**32-10, 2**32+10, 2**61, 2**64-10, 2**64+10)
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for cons in self.hash_constructors:
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h = cons(usedforsecurity=False)
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if h.name not in self.shakes:
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continue
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if HASH is not None and isinstance(h, HASH):
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# _hashopenssl's take a size_t
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continue
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for digest in h.digest, h.hexdigest:
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self.assertRaises(ValueError, digest, -10)
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for length in large_sizes:
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with self.assertRaises((ValueError, OverflowError)):
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digest(length)
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def test_name_attribute(self):
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for cons in self.hash_constructors:
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h = cons(usedforsecurity=False)
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self.assertIsInstance(h.name, str)
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if h.name in self.supported_hash_names:
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self.assertIn(h.name, self.supported_hash_names)
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else:
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self.assertNotIn(h.name, self.supported_hash_names)
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self.assertEqual(
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h.name,
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hashlib.new(h.name, usedforsecurity=False).name
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)
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def test_large_update(self):
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aas = b'a' * 128
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bees = b'b' * 127
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cees = b'c' * 126
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dees = b'd' * 2048 # HASHLIB_GIL_MINSIZE
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for cons in self.hash_constructors:
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m1 = cons(usedforsecurity=False)
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m1.update(aas)
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m1.update(bees)
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m1.update(cees)
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m1.update(dees)
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if m1.name in self.shakes:
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args = (16,)
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else:
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args = ()
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m2 = cons(usedforsecurity=False)
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m2.update(aas + bees + cees + dees)
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self.assertEqual(m1.digest(*args), m2.digest(*args))
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m3 = cons(aas + bees + cees + dees, usedforsecurity=False)
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self.assertEqual(m1.digest(*args), m3.digest(*args))
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# verify copy() doesn't touch original
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m4 = cons(aas + bees + cees, usedforsecurity=False)
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m4_digest = m4.digest(*args)
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m4_copy = m4.copy()
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m4_copy.update(dees)
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self.assertEqual(m1.digest(*args), m4_copy.digest(*args))
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self.assertEqual(m4.digest(*args), m4_digest)
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def check(self, name, data, hexdigest, shake=False, **kwargs):
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length = len(hexdigest)//2
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hexdigest = hexdigest.lower()
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constructors = self.constructors_to_test[name]
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# 2 is for hashlib.name(...) and hashlib.new(name, ...)
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self.assertGreaterEqual(len(constructors), 2)
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for hash_object_constructor in constructors:
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m = hash_object_constructor(data, **kwargs)
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computed = m.hexdigest() if not shake else m.hexdigest(length)
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self.assertEqual(
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computed, hexdigest,
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"Hash algorithm %s constructed using %s returned hexdigest"
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" %r for %d byte input data that should have hashed to %r."
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% (name, hash_object_constructor,
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computed, len(data), hexdigest))
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computed = m.digest() if not shake else m.digest(length)
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digest = bytes.fromhex(hexdigest)
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self.assertEqual(computed, digest)
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if not shake:
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self.assertEqual(len(digest), m.digest_size)
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def check_no_unicode(self, algorithm_name):
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# Unicode objects are not allowed as input.
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constructors = self.constructors_to_test[algorithm_name]
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for hash_object_constructor in constructors:
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self.assertRaises(TypeError, hash_object_constructor, 'spam')
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def test_no_unicode(self):
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self.check_no_unicode('md5')
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self.check_no_unicode('sha1')
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self.check_no_unicode('sha224')
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self.check_no_unicode('sha256')
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self.check_no_unicode('sha384')
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self.check_no_unicode('sha512')
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@requires_blake2
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def test_no_unicode_blake2(self):
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self.check_no_unicode('blake2b')
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self.check_no_unicode('blake2s')
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def test_no_unicode_sha3(self):
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self.check_no_unicode('sha3_224')
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self.check_no_unicode('sha3_256')
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self.check_no_unicode('sha3_384')
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self.check_no_unicode('sha3_512')
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self.check_no_unicode('shake_128')
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self.check_no_unicode('shake_256')
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def check_blocksize_name(self, name, block_size=0, digest_size=0,
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digest_length=None):
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constructors = self.constructors_to_test[name]
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for hash_object_constructor in constructors:
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m = hash_object_constructor(usedforsecurity=False)
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self.assertEqual(m.block_size, block_size)
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self.assertEqual(m.digest_size, digest_size)
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if digest_length:
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self.assertEqual(len(m.digest(digest_length)),
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digest_length)
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self.assertEqual(len(m.hexdigest(digest_length)),
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2*digest_length)
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else:
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self.assertEqual(len(m.digest()), digest_size)
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self.assertEqual(len(m.hexdigest()), 2*digest_size)
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self.assertEqual(m.name, name)
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# split for sha3_512 / _sha3.sha3 object
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self.assertIn(name.split("_")[0], repr(m))
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def test_blocksize_name(self):
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self.check_blocksize_name('md5', 64, 16)
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self.check_blocksize_name('sha1', 64, 20)
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self.check_blocksize_name('sha224', 64, 28)
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self.check_blocksize_name('sha256', 64, 32)
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self.check_blocksize_name('sha384', 128, 48)
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self.check_blocksize_name('sha512', 128, 64)
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def test_blocksize_name_sha3(self):
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self.check_blocksize_name('sha3_224', 144, 28)
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self.check_blocksize_name('sha3_256', 136, 32)
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self.check_blocksize_name('sha3_384', 104, 48)
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self.check_blocksize_name('sha3_512', 72, 64)
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self.check_blocksize_name('shake_128', 168, 0, 32)
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self.check_blocksize_name('shake_256', 136, 0, 64)
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def check_sha3(self, name, capacity, rate, suffix):
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constructors = self.constructors_to_test[name]
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for hash_object_constructor in constructors:
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m = hash_object_constructor()
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if HASH is not None and isinstance(m, HASH):
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# _hashopenssl's variant does not have extra SHA3 attributes
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continue
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self.assertEqual(capacity + rate, 1600)
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self.assertEqual(m._capacity_bits, capacity)
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self.assertEqual(m._rate_bits, rate)
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self.assertEqual(m._suffix, suffix)
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def test_extra_sha3(self):
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self.check_sha3('sha3_224', 448, 1152, b'\x06')
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self.check_sha3('sha3_256', 512, 1088, b'\x06')
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self.check_sha3('sha3_384', 768, 832, b'\x06')
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self.check_sha3('sha3_512', 1024, 576, b'\x06')
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self.check_sha3('shake_128', 256, 1344, b'\x1f')
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self.check_sha3('shake_256', 512, 1088, b'\x1f')
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@requires_blake2
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def test_blocksize_name_blake2(self):
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self.check_blocksize_name('blake2b', 128, 64)
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self.check_blocksize_name('blake2s', 64, 32)
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def test_case_md5_0(self):
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self.check(
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'md5', b'', 'd41d8cd98f00b204e9800998ecf8427e',
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usedforsecurity=False
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)
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def test_case_md5_1(self):
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self.check(
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'md5', b'abc', '900150983cd24fb0d6963f7d28e17f72',
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usedforsecurity=False
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)
|
|
|
|
def test_case_md5_2(self):
|
|
self.check(
|
|
'md5',
|
|
b'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789',
|
|
'd174ab98d277d9f5a5611c2c9f419d9f',
|
|
usedforsecurity=False
|
|
)
|
|
|
|
@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(ValueError, constructor, leaf_size=-1)
|
|
self.assertRaises(OverflowError, constructor, leaf_size=1<<32)
|
|
|
|
constructor(node_offset=0)
|
|
constructor(node_offset=max_offset)
|
|
self.assertRaises(ValueError, 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)
|
|
|
|
def test_case_sha3_224_0(self):
|
|
self.check('sha3_224', b"",
|
|
"6b4e03423667dbb73b6e15454f0eb1abd4597f9a1b078e3f5b5a6bc7")
|
|
|
|
def test_case_sha3_224_vector(self):
|
|
for msg, md in read_vectors('sha3_224'):
|
|
self.check('sha3_224', msg, md)
|
|
|
|
def test_case_sha3_256_0(self):
|
|
self.check('sha3_256', b"",
|
|
"a7ffc6f8bf1ed76651c14756a061d662f580ff4de43b49fa82d80a4b80f8434a")
|
|
|
|
def test_case_sha3_256_vector(self):
|
|
for msg, md in read_vectors('sha3_256'):
|
|
self.check('sha3_256', msg, md)
|
|
|
|
def test_case_sha3_384_0(self):
|
|
self.check('sha3_384', b"",
|
|
"0c63a75b845e4f7d01107d852e4c2485c51a50aaaa94fc61995e71bbee983a2a"+
|
|
"c3713831264adb47fb6bd1e058d5f004")
|
|
|
|
def test_case_sha3_384_vector(self):
|
|
for msg, md in read_vectors('sha3_384'):
|
|
self.check('sha3_384', msg, md)
|
|
|
|
def test_case_sha3_512_0(self):
|
|
self.check('sha3_512', b"",
|
|
"a69f73cca23a9ac5c8b567dc185a756e97c982164fe25859e0d1dcc1475c80a6"+
|
|
"15b2123af1f5f94c11e3e9402c3ac558f500199d95b6d3e301758586281dcd26")
|
|
|
|
def test_case_sha3_512_vector(self):
|
|
for msg, md in read_vectors('sha3_512'):
|
|
self.check('sha3_512', msg, md)
|
|
|
|
def test_case_shake_128_0(self):
|
|
self.check('shake_128', b"",
|
|
"7f9c2ba4e88f827d616045507605853ed73b8093f6efbc88eb1a6eacfa66ef26",
|
|
True)
|
|
self.check('shake_128', b"", "7f9c", True)
|
|
|
|
def test_case_shake128_vector(self):
|
|
for msg, md in read_vectors('shake_128'):
|
|
self.check('shake_128', msg, md, True)
|
|
|
|
def test_case_shake_256_0(self):
|
|
self.check('shake_256', b"",
|
|
"46b9dd2b0ba88d13233b3feb743eeb243fcd52ea62b81b82b50c27646ed5762f",
|
|
True)
|
|
self.check('shake_256', b"", "46b9", True)
|
|
|
|
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(usedforsecurity=False)
|
|
m.update(b'1')
|
|
m.update(b'#' * gil_minsize)
|
|
m.update(b'1')
|
|
|
|
m = cons(b'x' * gil_minsize, usedforsecurity=False)
|
|
m.update(b'1')
|
|
|
|
m = hashlib.sha256()
|
|
m.update(b'1')
|
|
m.update(b'#' * gil_minsize)
|
|
m.update(b'1')
|
|
self.assertEqual(
|
|
m.hexdigest(),
|
|
'1cfceca95989f51f658e3f3ffe7f1cd43726c9e088c13ee10b46f57cef135b94'
|
|
)
|
|
|
|
m = hashlib.sha256(b'1' + b'#' * gil_minsize + b'1')
|
|
self.assertEqual(
|
|
m.hexdigest(),
|
|
'1cfceca95989f51f658e3f3ffe7f1cd43726c9e088c13ee10b46f57cef135b94'
|
|
)
|
|
|
|
@threading_helper.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())
|
|
|
|
def test_get_fips_mode(self):
|
|
fips_mode = self.is_fips_mode
|
|
if fips_mode is not None:
|
|
self.assertIsInstance(fips_mode, int)
|
|
|
|
@support.cpython_only
|
|
def test_disallow_instantiation(self):
|
|
for algorithm, constructors in self.constructors_to_test.items():
|
|
if algorithm.startswith(("sha3_", "shake", "blake")):
|
|
# _sha3 and _blake types can be instantiated
|
|
continue
|
|
# all other types have DISALLOW_INSTANTIATION
|
|
for constructor in constructors:
|
|
# In FIPS mode some algorithms are not available raising ValueError
|
|
try:
|
|
h = constructor()
|
|
except ValueError:
|
|
continue
|
|
with self.subTest(constructor=constructor):
|
|
support.check_disallow_instantiation(self, type(h))
|
|
|
|
@unittest.skipUnless(HASH is not None, 'need _hashlib')
|
|
def test_hash_disallow_instantiation(self):
|
|
# internal types like _hashlib.HASH are not constructable
|
|
support.check_disallow_instantiation(self, HASH)
|
|
support.check_disallow_instantiation(self, HASHXOF)
|
|
|
|
def test_readonly_types(self):
|
|
for algorithm, constructors in self.constructors_to_test.items():
|
|
# all other types have DISALLOW_INSTANTIATION
|
|
for constructor in constructors:
|
|
# In FIPS mode some algorithms are not available raising ValueError
|
|
try:
|
|
hash_type = type(constructor())
|
|
except ValueError:
|
|
continue
|
|
with self.subTest(hash_type=hash_type):
|
|
with self.assertRaisesRegex(TypeError, "immutable type"):
|
|
hash_type.value = False
|
|
|
|
|
|
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, supported):
|
|
for digest_name, results in self.pbkdf2_results.items():
|
|
if digest_name not in supported:
|
|
continue
|
|
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)
|
|
self.assertEqual(out, expected)
|
|
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))
|
|
|
|
with self.assertRaisesRegex(ValueError, '.*unsupported.*'):
|
|
pbkdf2('unknown', b'pass', b'salt', 1)
|
|
|
|
if 'sha1' in supported:
|
|
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
|
|
)
|
|
out = pbkdf2(hash_name='sha1', password=b'password', salt=b'salt',
|
|
iterations=1, dklen=None)
|
|
self.assertEqual(out, self.pbkdf2_results['sha1'][0][0])
|
|
|
|
@unittest.skipIf(builtin_hashlib is None, "test requires builtin_hashlib")
|
|
def test_pbkdf2_hmac_py(self):
|
|
with warnings_helper.check_warnings():
|
|
self._test_pbkdf2_hmac(
|
|
builtin_hashlib.pbkdf2_hmac, builtin_hashes
|
|
)
|
|
|
|
@unittest.skipUnless(hasattr(openssl_hashlib, 'pbkdf2_hmac'),
|
|
' test requires OpenSSL > 1.0')
|
|
def test_pbkdf2_hmac_c(self):
|
|
self._test_pbkdf2_hmac(openssl_hashlib.pbkdf2_hmac, openssl_md_meth_names)
|
|
|
|
@unittest.skipUnless(hasattr(hashlib, 'scrypt'),
|
|
' test requires OpenSSL > 1.1')
|
|
@unittest.skipIf(get_fips_mode(), reason="scrypt is blocked in FIPS mode")
|
|
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)
|
|
|
|
def test_normalized_name(self):
|
|
self.assertNotIn("blake2b512", hashlib.algorithms_available)
|
|
self.assertNotIn("sha3-512", hashlib.algorithms_available)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|