From 9c3088fe12d844a2007e0eff0eb947af53de7f60 Mon Sep 17 00:00:00 2001 From: Julian Krause Date: Wed, 4 Dec 2013 14:49:50 -0800 Subject: Beginnings of a constant_time module. --- tests/hazmat/primitives/test_constant_time.py | 41 +++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 tests/hazmat/primitives/test_constant_time.py (limited to 'tests/hazmat/primitives') diff --git a/tests/hazmat/primitives/test_constant_time.py b/tests/hazmat/primitives/test_constant_time.py new file mode 100644 index 00000000..dd910dee --- /dev/null +++ b/tests/hazmat/primitives/test_constant_time.py @@ -0,0 +1,41 @@ +# 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. + +from __future__ import absolute_import, division, print_function + +import pytest + +import six + +from cryptography.hazmat.primitives import constant_time + + +class TestConstantTimeBytesEq(object): + def test_reject_unicode(self): + with pytest.raises(TypeError): + constant_time.bytes_eq(b"foo", six.u("foo")) + + with pytest.raises(TypeError): + constant_time.bytes_eq(six.u("foo"), b"foo") + + with pytest.raises(TypeError): + constant_time.bytes_eq(six.u("foo"), six.u("foo")) + + def test_compares(self): + assert constant_time.bytes_eq(b"foo", b"foo") is True + + assert constant_time.bytes_eq(b"foo", b"bar") is False + + assert constant_time.bytes_eq(b"foobar", b"foo") is False + + assert constant_time.bytes_eq(b"foo", b"foobar") is False -- cgit v1.2.3