| # 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 io |
| import itertools |
| import os |
| import sys |
| import sysconfig |
| import threading |
| import unittest |
| import warnings |
| from test import support |
| from test.support import _4G, bigmemtest |
| from test.support.import_helper import import_fresh_module |
| from test.support import os_helper |
| from test.support import threading_helper |
| from test.support import warnings_helper |
| from http.client import HTTPException |
| |
| # Were we compiled --with-pydebug or with #define Py_DEBUG? |
| COMPILED_WITH_PYDEBUG = hasattr(sys, 'gettotalrefcount') |
| |
| # default builtin hash module |
| default_builtin_hashes = {'md5', 'sha1', 'sha256', 'sha512', 'sha3', 'blake2'} |
| # --with-builtin-hashlib-hashes override |
| builtin_hashes = sysconfig.get_config_var("PY_BUILTIN_HASHLIB_HASHES") |
| if builtin_hashes is None: |
| builtin_hashes = default_builtin_hashes |
| else: |
| builtin_hashes = { |
| m.strip() for m in builtin_hashes.strip('"').lower().split(",") |
| } |
| |
| # hashlib with and without OpenSSL backend for PBKDF2 |
| # only import builtin_hashlib when all builtin hashes are available. |
| # Otherwise import prints noise on stderr |
| openssl_hashlib = import_fresh_module('hashlib', fresh=['_hashlib']) |
| if builtin_hashes == default_builtin_hashes: |
| builtin_hashlib = import_fresh_module('hashlib', blocked=['_hashlib']) |
| else: |
| builtin_hashlib = None |
| |
| try: |
| from _hashlib import HASH, HASHXOF, openssl_md_meth_names, get_fips_mode |
| except ImportError: |
| HASH = None |
| HASHXOF = None |
| openssl_md_meth_names = frozenset() |
| |
| def get_fips_mode(): |
| return 0 |
| |
| try: |
| import _blake2 |
| except ImportError: |
| _blake2 = None |
| |
| requires_blake2 = unittest.skipUnless(_blake2, 'requires _blake2') |
| |
| # bpo-46913: Don't test the _sha3 extension on a Python UBSAN build |
| SKIP_SHA3 = support.check_sanitizer(ub=True) |
| requires_sha3 = unittest.skipUnless(not SKIP_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, encoding="utf-8") |
| 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 and module_name in builtin_hashes: |
| 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: |
| if SKIP_SHA3 and algorithm.startswith('sha3_'): |
| continue |
| 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') |
| self._hashlib = _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: |
| try: |
| constructor() |
| except ValueError: |
| # default constructor blocked by crypto policy |
| pass |
| else: |
| 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') |
| |
| if not SKIP_SHA3: |
| _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) |
| |
| @property |
| def is_fips_mode(self): |
| return get_fips_mode() |
| |
| def test_hash_array(self): |
| a = array.array("b", range(10)) |
| for cons in self.hash_constructors: |
| c = cons(a, usedforsecurity=False) |
| 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)) |
| # all available algorithms must be loadable, bpo-47101 |
| self.assertNotIn("undefined", hashlib.algorithms_available) |
| for name in hashlib.algorithms_available: |
| digest = hashlib.new(name, usedforsecurity=False) |
| |
| def test_usedforsecurity_true(self): |
| hashlib.new("sha256", usedforsecurity=True) |
| if self.is_fips_mode: |
| self.skipTest("skip in FIPS mode") |
| for cons in self.hash_constructors: |
| cons(usedforsecurity=True) |
| cons(b'', usedforsecurity=True) |
| hashlib.new("md5", usedforsecurity=True) |
| hashlib.md5(usedforsecurity=True) |
| if self._hashlib is not None: |
| self._hashlib.new("md5", usedforsecurity=True) |
| self._hashlib.openssl_md5(usedforsecurity=True) |
| |
| def test_usedforsecurity_false(self): |
| hashlib.new("sha256", usedforsecurity=False) |
| for cons in self.hash_constructors: |
| cons(usedforsecurity=False) |
| cons(b'', usedforsecurity=False) |
| hashlib.new("md5", usedforsecurity=False) |
| hashlib.md5(usedforsecurity=False) |
| if self._hashlib is not None: |
| self._hashlib.new("md5", usedforsecurity=False) |
| self._hashlib.openssl_md5(usedforsecurity=False) |
| |
| def test_unknown_hash(self): |
| self.assertRaises(ValueError, hashlib.new, 'spam spam spam spam spam') |
| self.assertRaises(TypeError, hashlib.new, 1) |
| |
| def test_new_upper_to_lower(self): |
| self.assertEqual(hashlib.new("SHA256").name, "sha256") |
| |
| 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(usedforsecurity=False) |
| 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(usedforsecurity=False) |
| if h.name not in self.shakes: |
| continue |
| if HASH is not None and isinstance(h, HASH): |
| # _hashopenssl's take a size_t |
| continue |
| for digest in h.digest, h.hexdigest: |
| self.assertRaises(ValueError, 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(usedforsecurity=False) |
| 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, usedforsecurity=False).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(usedforsecurity=False) |
| m1.update(aas) |
| m1.update(bees) |
| m1.update(cees) |
| m1.update(dees) |
| if m1.name in self.shakes: |
| args = (16,) |
| else: |
| args = () |
| |
| m2 = cons(usedforsecurity=False) |
| m2.update(aas + bees + cees + dees) |
| self.assertEqual(m1.digest(*args), m2.digest(*args)) |
| |
| m3 = cons(aas + bees + cees + dees, usedforsecurity=False) |
| self.assertEqual(m1.digest(*args), m3.digest(*args)) |
| |
| # verify copy() doesn't touch original |
| m4 = cons(aas + bees + cees, usedforsecurity=False) |
| 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) |
| |
| if not shake and kwargs.get("key") is None: |
| # skip shake and blake2 extended parameter tests |
| self.check_file_digest(name, data, hexdigest) |
| |
| def check_file_digest(self, name, data, hexdigest): |
| hexdigest = hexdigest.lower() |
| try: |
| hashlib.new(name) |
| except ValueError: |
| # skip, algorithm is blocked by security policy. |
| return |
| digests = [name] |
| digests.extend(self.constructors_to_test[name]) |
| |
| with open(os_helper.TESTFN, "wb") as f: |
| f.write(data) |
| |
| try: |
| for digest in digests: |
| buf = io.BytesIO(data) |
| buf.seek(0) |
| self.assertEqual( |
| hashlib.file_digest(buf, digest).hexdigest(), hexdigest |
| ) |
| with open(os_helper.TESTFN, "rb") as f: |
| digestobj = hashlib.file_digest(f, digest) |
| self.assertEqual(digestobj.hexdigest(), hexdigest) |
| finally: |
| os.unlink(os_helper.TESTFN) |
| |
| 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(usedforsecurity=False) |
| 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() |
| if HASH is not None and isinstance(m, HASH): |
| # _hashopenssl's variant does not have extra SHA3 attributes |
| continue |
| 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', |
| usedforsecurity=False |
| ) |
| |
| def test_case_md5_1(self): |
| self.check( |
| 'md5', b'abc', '900150983cd24fb0d6963f7d28e17f72', |
| usedforsecurity=False |
| ) |
| |
| 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) |
| |
| @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) |
| |
| 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 |
| @threading_helper.requires_working_threading() |
| 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) |
| |
| def test_file_digest(self): |
| data = b'a' * 65536 |
| d1 = hashlib.sha256() |
| self.addCleanup(os.unlink, os_helper.TESTFN) |
| with open(os_helper.TESTFN, "wb") as f: |
| for _ in range(10): |
| d1.update(data) |
| f.write(data) |
| |
| with open(os_helper.TESTFN, "rb") as f: |
| d2 = hashlib.file_digest(f, hashlib.sha256) |
| |
| self.assertEqual(d1.hexdigest(), d2.hexdigest()) |
| self.assertEqual(d1.name, d2.name) |
| self.assertIs(type(d1), type(d2)) |
| |
| with self.assertRaises(ValueError): |
| hashlib.file_digest(None, "sha256") |
| |
| with self.assertRaises(ValueError): |
| with open(os_helper.TESTFN, "r") as f: |
| hashlib.file_digest(f, "sha256") |
| |
| with self.assertRaises(ValueError): |
| with open(os_helper.TESTFN, "wb") as f: |
| hashlib.file_digest(f, "sha256") |
| |
| |
| if __name__ == "__main__": |
| unittest.main() |
