def testCbcEncryptDecryptSuccessfully(self):
logging.debug('Running testCbcEncryptDecryptSuccessfully method.')
# test success for 16, 16, 24, and 32 byte length keys.
for key in (_KEY1, _KEY2, _KEY1 + '12345678', _KEY1 + _KEY2):
self.cipher = ccrypto.AesCbc(key)
ciphertext = self.cipher.Encrypt(_PLAINTEXT1)
self.assertEqual(_PLAINTEXT1, self.cipher.Decrypt(ciphertext))
# test success with different plaintexts
self.cipher = ccrypto.AesCbc(_KEY1)
for plaintext in ('22', _PLAINTEXT1, _PLAINTEXT2,
_PLAINTEXT1 + _PLAINTEXT2):
ciphertext = self.cipher.Encrypt(plaintext)
self.assertEqual(plaintext, self.cipher.Decrypt(ciphertext))
def __init__(self, key):
"""Cipher is initialized with a key of valid Aes key lengths."""
super(ProbabilisticCipher, self).__init__()
self._cipher = ccrypto.AesCbc(key)
def setUp(self):
"""Run once for each test in the class."""
self.cipher = ccrypto.AesCbc(_KEY1)