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58ab6ca487
Set their role types when generating a Root or Targets metadata. The role type will be checked first thing after verifying the metadata signatures to deter chosen-ciphertext attacks. Change-Id: Idb91d38e570cd2ebae308b36dae36660fe3794c9 Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/68583 Pigweed-Auto-Submit: Ali Zhang <alizhang@google.com> Commit-Queue: Ali Zhang <alizhang@google.com> Reviewed-by: Joe Ethier <jethier@google.com>
51 lines
1.9 KiB
Python
51 lines
1.9 KiB
Python
# Copyright 2021 The Pigweed Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may not
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# use this file except in compliance with the License. You may obtain a copy of
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# the License at
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#
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# https://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 under
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# the License.
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"""Unit tests for pw_software_update/metadata.py."""
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import unittest
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from pw_software_update import metadata
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from pw_software_update.tuf_pb2 import HashFunction
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class GenTargetsMetadataTest(unittest.TestCase):
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"""Test the generation of targets metadata."""
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def test_multiple_targets(self):
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"""Checks that multiple targets generates multiple TargetFiles."""
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target_payloads = {
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'foo': b'\x1e\xe7',
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'bar': b'\x12\x34',
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}
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targets_metadata = metadata.gen_targets_metadata(
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target_payloads, (HashFunction.SHA256, ), version=42)
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self.assertEqual(2, len(targets_metadata.target_files))
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self.assertEqual(metadata.RoleType.TARGETS.value,
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targets_metadata.common_metadata.role)
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self.assertEqual(42, targets_metadata.common_metadata.version)
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class GenHashesTest(unittest.TestCase):
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"""Test the generation of hashes."""
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def test_sha256(self):
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"""Checks that SHA256 hashes are computed and stored properly."""
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data = b'\x1e\xe7'
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sha256_hash = metadata.gen_hashes(data, (HashFunction.SHA256, ))[0]
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self.assertEqual(
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'9f36ce605a3b28110d2a25ec36bdfff86059086cbd53c9efc1428ef01070515d',
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sha256_hash.hash.hex())
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if __name__ == '__main__':
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unittest.main()
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