62 lines
2.5 KiB
Python
62 lines
2.5 KiB
Python
# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import hmac
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from oslotest import base as test_base
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import testscenarios
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from oslo_utils import secretutils
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class SecretUtilsTest(testscenarios.TestWithScenarios,
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test_base.BaseTestCase):
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_gen_digest = lambda text: hmac.new(b'foo', text.encode('utf-8')).digest()
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scenarios = [
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('binary', {'converter': _gen_digest}),
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('unicode', {'converter': lambda text: text}),
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]
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def test_constant_time_compare(self):
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# make sure it works as a compare, the "constant time" aspect
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# isn't appropriate to test in unittests
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# Make sure the unittests are applied to our function instead of
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# the built-in function, otherwise that is in vain.
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ctc = secretutils._constant_time_compare
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self.assertTrue(ctc(self.converter(u'abcd'),
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self.converter(u'abcd')))
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self.assertTrue(ctc(self.converter(u''),
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self.converter(u'')))
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self.assertTrue(ctc('abcd', 'abcd'))
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self.assertFalse(ctc(self.converter(u'abcd'),
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self.converter(u'efgh')))
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self.assertFalse(ctc(self.converter(u'abc'),
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self.converter(u'abcd')))
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self.assertFalse(ctc(self.converter(u'abc'),
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self.converter(u'abc\x00')))
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self.assertFalse(ctc(self.converter(u''),
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self.converter(u'abc')))
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self.assertTrue(ctc(self.converter(u'abcd1234'),
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self.converter(u'abcd1234')))
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self.assertFalse(ctc(self.converter(u'abcd1234'),
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self.converter(u'ABCD234')))
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self.assertFalse(ctc(self.converter(u'abcd1234'),
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self.converter(u'a')))
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self.assertFalse(ctc(self.converter(u'abcd1234'),
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self.converter(u'1234abcd')))
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self.assertFalse(ctc('abcd1234', '1234abcd'))
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