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# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import hashlib
import hmac
from oslotest import base as test_base
import testscenarios
from oslo_utils import secretutils
class SecretUtilsTest(testscenarios.TestWithScenarios,
test_base.BaseTestCase):
_gen_digest = lambda text: hmac.new(b'foo', text.encode('utf-8'),
digestmod=hashlib.sha1).digest()
scenarios = [
('binary', {'converter': _gen_digest}),
('unicode', {'converter': lambda text: text}),
]
def test_constant_time_compare(self):
# make sure it works as a compare, the "constant time" aspect
# isn't appropriate to test in unittests
# Make sure the unittests are applied to our function instead of
# the built-in function, otherwise that is in vain.
ctc = secretutils._constant_time_compare
self.assertTrue(ctc(self.converter('abcd'),
self.converter('abcd')))
self.assertTrue(ctc(self.converter(''),
self.converter('')))
self.assertTrue(ctc('abcd', 'abcd'))
self.assertFalse(ctc(self.converter('abcd'),
self.converter('efgh')))
self.assertFalse(ctc(self.converter('abc'),
self.converter('abcd')))
self.assertFalse(ctc(self.converter('abc'),
self.converter('abc\x00')))
self.assertFalse(ctc(self.converter(''),
self.converter('abc')))
self.assertTrue(ctc(self.converter('abcd1234'),
self.converter('abcd1234')))
self.assertFalse(ctc(self.converter('abcd1234'),
self.converter('ABCD234')))
self.assertFalse(ctc(self.converter('abcd1234'),
self.converter('a')))
self.assertFalse(ctc(self.converter('abcd1234'),
self.converter('1234abcd')))
self.assertFalse(ctc('abcd1234', '1234abcd'))
_test_data = "Openstack forever".encode('utf-8')
_md5_digest = hashlib.md5(_test_data).digest()
def test_md5_with_data(self):
digest = secretutils.md5(self._test_data).digest()
self.assertEqual(digest, self._md5_digest)
digest = secretutils.md5(self._test_data,
usedforsecurity=True).digest()
self.assertEqual(digest, self._md5_digest)
digest = secretutils.md5(self._test_data,
usedforsecurity=False).digest()
self.assertEqual(digest, self._md5_digest)
def test_md5_without_data(self):
md5 = secretutils.md5()
md5.update(self._test_data)
digest = md5.digest()
self.assertEqual(digest, self._md5_digest)
md5 = secretutils.md5(usedforsecurity=True)
md5.update(self._test_data)
digest = md5.digest()
self.assertEqual(digest, self._md5_digest)
md5 = secretutils.md5(usedforsecurity=False)
md5.update(self._test_data)
digest = md5.digest()
self.assertEqual(digest, self._md5_digest)
def test_string_data_raises_type_error(self):
self.assertRaises(TypeError, hashlib.md5, 'foo')
self.assertRaises(TypeError, secretutils.md5, 'foo')
self.assertRaises(
TypeError, secretutils.md5, 'foo', usedforsecurity=True)
self.assertRaises(
TypeError, secretutils.md5, 'foo', usedforsecurity=False)
def test_none_data_raises_type_error(self):
self.assertRaises(TypeError, hashlib.md5, None)
self.assertRaises(TypeError, secretutils.md5, None)
self.assertRaises(
TypeError, secretutils.md5, None, usedforsecurity=True)
self.assertRaises(
TypeError, secretutils.md5, None, usedforsecurity=False)
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