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# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.
from __future__ import absolute_import, division, print_function
import binascii
import os
import pytest
from cryptography.hazmat.backends.interfaces import CipherBackend
from cryptography.hazmat.primitives.ciphers import algorithms, modes
from .utils import generate_encrypt_test
from ...utils import load_nist_vectors
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
algorithms.SEED("\x00" * 16), modes.ECB()
),
skip_message="Does not support SEED ECB",
)
@pytest.mark.requires_backend_interface(interface=CipherBackend)
class TestSEEDModeECB(object):
test_ECB = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "SEED"),
["rfc-4269.txt"],
lambda key, **kwargs: algorithms.SEED(binascii.unhexlify((key))),
lambda **kwargs: modes.ECB(),
)
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
algorithms.SEED("\x00" * 16), modes.CBC("\x00" * 16)
),
skip_message="Does not support SEED CBC",
)
@pytest.mark.requires_backend_interface(interface=CipherBackend)
class TestSEEDModeCBC(object):
test_CBC = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "SEED"),
["rfc-4196.txt"],
lambda key, **kwargs: algorithms.SEED(binascii.unhexlify((key))),
lambda iv, **kwargs: modes.CBC(binascii.unhexlify(iv))
)
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
algorithms.SEED("\x00" * 16), modes.OFB("\x00" * 16)
),
skip_message="Does not support SEED OFB",
)
@pytest.mark.requires_backend_interface(interface=CipherBackend)
class TestSEEDModeOFB(object):
test_OFB = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "SEED"),
["seed-ofb.txt"],
lambda key, **kwargs: algorithms.SEED(binascii.unhexlify((key))),
lambda iv, **kwargs: modes.OFB(binascii.unhexlify(iv))
)
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
algorithms.SEED("\x00" * 16), modes.CFB("\x00" * 16)
),
skip_message="Does not support SEED CFB",
)
@pytest.mark.requires_backend_interface(interface=CipherBackend)
class TestSEEDModeCFB(object):
test_CFB = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "SEED"),
["seed-cfb.txt"],
lambda key, **kwargs: algorithms.SEED(binascii.unhexlify((key))),
lambda iv, **kwargs: modes.CFB(binascii.unhexlify(iv))
)
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