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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.
"""
Test using the NIST Test Vectors
"""
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.TripleDES(b"\x00" * 8), modes.CBC(b"\x00" * 8)
),
skip_message="Does not support TripleDES CBC",
)
@pytest.mark.requires_backend_interface(interface=CipherBackend)
class TestTripleDESModeCBC(object):
test_kat = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "3DES", "CBC"),
[
"TCBCinvperm.rsp",
"TCBCpermop.rsp",
"TCBCsubtab.rsp",
"TCBCvarkey.rsp",
"TCBCvartext.rsp",
],
lambda keys, **kwargs: algorithms.TripleDES(binascii.unhexlify(keys)),
lambda iv, **kwargs: modes.CBC(binascii.unhexlify(iv)),
)
test_mmt = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "3DES", "CBC"),
[
"TCBCMMT1.rsp",
"TCBCMMT2.rsp",
"TCBCMMT3.rsp",
],
lambda key1, key2, key3, **kwargs: algorithms.TripleDES(
binascii.unhexlify(key1 + key2 + key3)
),
lambda iv, **kwargs: modes.CBC(binascii.unhexlify(iv)),
)
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
algorithms.TripleDES(b"\x00" * 8), modes.OFB(b"\x00" * 8)
),
skip_message="Does not support TripleDES OFB",
)
@pytest.mark.requires_backend_interface(interface=CipherBackend)
class TestTripleDESModeOFB(object):
test_kat = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "3DES", "OFB"),
[
"TOFBpermop.rsp",
"TOFBsubtab.rsp",
"TOFBvarkey.rsp",
"TOFBvartext.rsp",
"TOFBinvperm.rsp",
],
lambda keys, **kwargs: algorithms.TripleDES(binascii.unhexlify(keys)),
lambda iv, **kwargs: modes.OFB(binascii.unhexlify(iv)),
)
test_mmt = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "3DES", "OFB"),
[
"TOFBMMT1.rsp",
"TOFBMMT2.rsp",
"TOFBMMT3.rsp",
],
lambda key1, key2, key3, **kwargs: algorithms.TripleDES(
binascii.unhexlify(key1 + key2 + key3)
),
lambda iv, **kwargs: modes.OFB(binascii.unhexlify(iv)),
)
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
algorithms.TripleDES(b"\x00" * 8), modes.CFB(b"\x00" * 8)
),
skip_message="Does not support TripleDES CFB",
)
@pytest.mark.requires_backend_interface(interface=CipherBackend)
class TestTripleDESModeCFB(object):
test_kat = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "3DES", "CFB"),
[
"TCFB64invperm.rsp",
"TCFB64permop.rsp",
"TCFB64subtab.rsp",
"TCFB64varkey.rsp",
"TCFB64vartext.rsp",
],
lambda keys, **kwargs: algorithms.TripleDES(binascii.unhexlify(keys)),
lambda iv, **kwargs: modes.CFB(binascii.unhexlify(iv)),
)
test_mmt = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "3DES", "CFB"),
[
"TCFB64MMT1.rsp",
"TCFB64MMT2.rsp",
"TCFB64MMT3.rsp",
],
lambda key1, key2, key3, **kwargs: algorithms.TripleDES(
binascii.unhexlify(key1 + key2 + key3)
),
lambda iv, **kwargs: modes.CFB(binascii.unhexlify(iv)),
)
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
algorithms.TripleDES(b"\x00" * 8), modes.CFB8(b"\x00" * 8)
),
skip_message="Does not support TripleDES CFB8",
)
@pytest.mark.requires_backend_interface(interface=CipherBackend)
class TestTripleDESModeCFB8(object):
test_kat = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "3DES", "CFB"),
[
"TCFB8invperm.rsp",
"TCFB8permop.rsp",
"TCFB8subtab.rsp",
"TCFB8varkey.rsp",
"TCFB8vartext.rsp",
],
lambda keys, **kwargs: algorithms.TripleDES(binascii.unhexlify(keys)),
lambda iv, **kwargs: modes.CFB8(binascii.unhexlify(iv)),
)
test_mmt = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "3DES", "CFB"),
[
"TCFB8MMT1.rsp",
"TCFB8MMT2.rsp",
"TCFB8MMT3.rsp",
],
lambda key1, key2, key3, **kwargs: algorithms.TripleDES(
binascii.unhexlify(key1 + key2 + key3)
),
lambda iv, **kwargs: modes.CFB8(binascii.unhexlify(iv)),
)
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
algorithms.TripleDES(b"\x00" * 8), modes.ECB()
),
skip_message="Does not support TripleDES ECB",
)
@pytest.mark.requires_backend_interface(interface=CipherBackend)
class TestTripleDESModeECB(object):
test_kat = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "3DES", "ECB"),
[
"TECBinvperm.rsp",
"TECBpermop.rsp",
"TECBsubtab.rsp",
"TECBvarkey.rsp",
"TECBvartext.rsp",
],
lambda keys, **kwargs: algorithms.TripleDES(binascii.unhexlify(keys)),
lambda **kwargs: modes.ECB(),
)
test_mmt = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "3DES", "ECB"),
[
"TECBMMT1.rsp",
"TECBMMT2.rsp",
"TECBMMT3.rsp",
],
lambda key1, key2, key3, **kwargs: algorithms.TripleDES(
binascii.unhexlify(key1 + key2 + key3)
),
lambda **kwargs: modes.ECB(),
)
|
