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import binascii
import pytest
from cryptography.primitives.block import BlockCipher, ciphers, modes, padding
class TestBlockCipher(object):
@pytest.mark.parametrize(("key", "iv", "plaintext", "ciphertext"), [
(
b"9dc2c84a37850c11699818605f47958c",
b"256953b2feab2a04ae0180d8335bbed6",
b"2e586692e647f5028ec6fa47a55a2aab",
b"1b1ebd1fc45ec43037fd4844241a437f"
),
])
def test_aes_cbc_nopadding(self, key, iv, plaintext, ciphertext):
cipher = BlockCipher(
ciphers.AES(binascii.unhexlify(key)),
modes.CBC(binascii.unhexlify(iv), padding.NoPadding())
)
actual_ciphertext = cipher.encrypt(plaintext) + cipher.finalize()
assert binascii.hexlify(actual_ciphertext) == ciphertext
|
