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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.
import binascii
import os
import pytest
from cryptography.hazmat.decrepit.ciphers.algorithms import (
CAST5,
IDEA,
SEED,
Blowfish,
)
from cryptography.hazmat.primitives.ciphers import modes
from ....utils import load_nist_vectors
from ..utils import generate_encrypt_test
class TestBlowfish:
@pytest.mark.parametrize(
("key", "keysize"),
[(b"0" * (keysize // 4), keysize) for keysize in range(32, 449, 8)],
)
def test_key_size(self, key, keysize):
cipher = Blowfish(binascii.unhexlify(key))
assert cipher.key_size == keysize
def test_invalid_key_size(self):
with pytest.raises(ValueError):
Blowfish(binascii.unhexlify(b"0" * 6))
def test_invalid_key_type(self):
with pytest.raises(TypeError, match="key must be bytes"):
Blowfish("0" * 8) # type: ignore[arg-type]
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
Blowfish(b"\x00" * 56), modes.ECB()
),
skip_message="Does not support Blowfish ECB",
)
class TestBlowfishModeECB:
test_ecb = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "Blowfish"),
["bf-ecb.txt"],
lambda key, **kwargs: Blowfish(binascii.unhexlify(key)),
lambda **kwargs: modes.ECB(),
)
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
Blowfish(b"\x00" * 56), modes.CBC(b"\x00" * 8)
),
skip_message="Does not support Blowfish CBC",
)
class TestBlowfishModeCBC:
test_cbc = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "Blowfish"),
["bf-cbc.txt"],
lambda key, **kwargs: Blowfish(binascii.unhexlify(key)),
lambda iv, **kwargs: modes.CBC(binascii.unhexlify(iv)),
)
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
Blowfish(b"\x00" * 56), modes.OFB(b"\x00" * 8)
),
skip_message="Does not support Blowfish OFB",
)
class TestBlowfishModeOFB:
test_ofb = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "Blowfish"),
["bf-ofb.txt"],
lambda key, **kwargs: Blowfish(binascii.unhexlify(key)),
lambda iv, **kwargs: modes.OFB(binascii.unhexlify(iv)),
)
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
Blowfish(b"\x00" * 56), modes.CFB(b"\x00" * 8)
),
skip_message="Does not support Blowfish CFB",
)
class TestBlowfishModeCFB:
test_cfb = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "Blowfish"),
["bf-cfb.txt"],
lambda key, **kwargs: Blowfish(binascii.unhexlify(key)),
lambda iv, **kwargs: modes.CFB(binascii.unhexlify(iv)),
)
class TestCAST5:
@pytest.mark.parametrize(
("key", "keysize"),
[(b"0" * (keysize // 4), keysize) for keysize in range(40, 129, 8)],
)
def test_key_size(self, key, keysize):
cipher = CAST5(binascii.unhexlify(key))
assert cipher.key_size == keysize
def test_invalid_key_size(self):
with pytest.raises(ValueError):
CAST5(binascii.unhexlify(b"0" * 34))
def test_invalid_key_type(self):
with pytest.raises(TypeError, match="key must be bytes"):
CAST5("0" * 10) # type: ignore[arg-type]
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
CAST5(b"\x00" * 16), modes.ECB()
),
skip_message="Does not support CAST5 ECB",
)
class TestCAST5ModeECB:
test_ecb = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "CAST5"),
["cast5-ecb.txt"],
lambda key, **kwargs: CAST5(binascii.unhexlify(key)),
lambda **kwargs: modes.ECB(),
)
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
CAST5(b"\x00" * 16), modes.CBC(b"\x00" * 8)
),
skip_message="Does not support CAST5 CBC",
)
class TestCAST5ModeCBC:
test_cbc = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "CAST5"),
["cast5-cbc.txt"],
lambda key, **kwargs: CAST5(binascii.unhexlify(key)),
lambda iv, **kwargs: modes.CBC(binascii.unhexlify(iv)),
)
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
CAST5(b"\x00" * 16), modes.OFB(b"\x00" * 8)
),
skip_message="Does not support CAST5 OFB",
)
class TestCAST5ModeOFB:
test_ofb = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "CAST5"),
["cast5-ofb.txt"],
lambda key, **kwargs: CAST5(binascii.unhexlify(key)),
lambda iv, **kwargs: modes.OFB(binascii.unhexlify(iv)),
)
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
CAST5(b"\x00" * 16), modes.CFB(b"\x00" * 8)
),
skip_message="Does not support CAST5 CFB",
)
class TestCAST5ModeCFB:
test_cfb = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "CAST5"),
["cast5-cfb.txt"],
lambda key, **kwargs: CAST5(binascii.unhexlify(key)),
lambda iv, **kwargs: modes.CFB(binascii.unhexlify(iv)),
)
class TestIDEA:
def test_key_size(self):
cipher = IDEA(b"\x00" * 16)
assert cipher.key_size == 128
def test_invalid_key_size(self):
with pytest.raises(ValueError):
IDEA(b"\x00" * 17)
def test_invalid_key_type(self):
with pytest.raises(TypeError, match="key must be bytes"):
IDEA("0" * 16) # type: ignore[arg-type]
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
IDEA(b"\x00" * 16), modes.ECB()
),
skip_message="Does not support IDEA ECB",
)
class TestIDEAModeECB:
test_ecb = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "IDEA"),
["idea-ecb.txt"],
lambda key, **kwargs: IDEA(binascii.unhexlify(key)),
lambda **kwargs: modes.ECB(),
)
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
IDEA(b"\x00" * 16), modes.CBC(b"\x00" * 8)
),
skip_message="Does not support IDEA CBC",
)
class TestIDEAModeCBC:
test_cbc = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "IDEA"),
["idea-cbc.txt"],
lambda key, **kwargs: IDEA(binascii.unhexlify(key)),
lambda iv, **kwargs: modes.CBC(binascii.unhexlify(iv)),
)
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
IDEA(b"\x00" * 16), modes.OFB(b"\x00" * 8)
),
skip_message="Does not support IDEA OFB",
)
class TestIDEAModeOFB:
test_ofb = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "IDEA"),
["idea-ofb.txt"],
lambda key, **kwargs: IDEA(binascii.unhexlify(key)),
lambda iv, **kwargs: modes.OFB(binascii.unhexlify(iv)),
)
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
IDEA(b"\x00" * 16), modes.CFB(b"\x00" * 8)
),
skip_message="Does not support IDEA CFB",
)
class TestIDEAModeCFB:
test_cfb = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "IDEA"),
["idea-cfb.txt"],
lambda key, **kwargs: IDEA(binascii.unhexlify(key)),
lambda iv, **kwargs: modes.CFB(binascii.unhexlify(iv)),
)
class TestSEED:
def test_key_size(self):
cipher = SEED(b"\x00" * 16)
assert cipher.key_size == 128
def test_invalid_key_size(self):
with pytest.raises(ValueError):
SEED(b"\x00" * 17)
def test_invalid_key_type(self):
with pytest.raises(TypeError, match="key must be bytes"):
SEED("0" * 16) # type: ignore[arg-type]
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
SEED(b"\x00" * 16), modes.ECB()
),
skip_message="Does not support SEED ECB",
)
class TestSEEDModeECB:
test_ecb = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "SEED"),
["rfc-4269.txt"],
lambda key, **kwargs: SEED(binascii.unhexlify(key)),
lambda **kwargs: modes.ECB(),
)
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
SEED(b"\x00" * 16), modes.CBC(b"\x00" * 16)
),
skip_message="Does not support SEED CBC",
)
class TestSEEDModeCBC:
test_cbc = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "SEED"),
["rfc-4196.txt"],
lambda key, **kwargs: SEED(binascii.unhexlify(key)),
lambda iv, **kwargs: modes.CBC(binascii.unhexlify(iv)),
)
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
SEED(b"\x00" * 16), modes.OFB(b"\x00" * 16)
),
skip_message="Does not support SEED OFB",
)
class TestSEEDModeOFB:
test_ofb = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "SEED"),
["seed-ofb.txt"],
lambda key, **kwargs: SEED(binascii.unhexlify(key)),
lambda iv, **kwargs: modes.OFB(binascii.unhexlify(iv)),
)
@pytest.mark.supported(
only_if=lambda backend: backend.cipher_supported(
SEED(b"\x00" * 16), modes.CFB(b"\x00" * 16)
),
skip_message="Does not support SEED CFB",
)
class TestSEEDModeCFB:
test_cfb = generate_encrypt_test(
load_nist_vectors,
os.path.join("ciphers", "SEED"),
["seed-cfb.txt"],
lambda key, **kwargs: SEED(binascii.unhexlify(key)),
lambda iv, **kwargs: modes.CFB(binascii.unhexlify(iv)),
)
|
