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35 lines
1.2 KiB
35 lines
1.2 KiB
7 months ago
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# This file is dual licensed under the terms of the Apache License, Version
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# 2.0, and the BSD License. See the LICENSE file in the root of this repository
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# for complete details.
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from hypothesis import HealthCheck, given, settings
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from hypothesis.strategies import binary, integers
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from cryptography.hazmat.primitives.padding import ANSIX923, PKCS7
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@settings(suppress_health_check=[HealthCheck.too_slow], deadline=None)
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@given(integers(min_value=1, max_value=255), binary())
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def test_pkcs7(block_size, data):
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# Generate in [1, 31] so we can easily get block_size in bits by
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# multiplying by 8.
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p = PKCS7(block_size=block_size * 8)
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padder = p.padder()
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unpadder = p.unpadder()
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padded = padder.update(data) + padder.finalize()
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assert unpadder.update(padded) + unpadder.finalize() == data
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@settings(suppress_health_check=[HealthCheck.too_slow])
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@given(integers(min_value=1, max_value=255), binary())
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def test_ansix923(block_size, data):
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a = ANSIX923(block_size=block_size * 8)
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padder = a.padder()
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unpadder = a.unpadder()
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padded = padder.update(data) + padder.finalize()
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assert unpadder.update(padded) + unpadder.finalize() == data
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