def test_decrypt(self):
key = 'A' * 32
iv = 'A' * 16
data = snowden1
block = 16
ciphertext, tag = _aes_encrypt(key, iv, data)
fd = BytesIO()
aes = _crypto.AESWriter(key, iv, fd, tag=tag)
for i in range(len(ciphertext) / block):
chunk = ciphertext[i * block:(i + 1) * block]
aes.write(chunk)
aes.end()
cleartext_chunked = fd.getvalue()
assert cleartext_chunked == data
def test_chunked_encryption(self):
key = 'A' * 32
fd = BytesIO()
aes = _crypto.AESWriter(key, _buffer=fd)
iv = aes.iv
data = snowden1
block = 16
for i in range(len(data) / block):
chunk = data[i * block:(i + 1) * block]
aes.write(chunk)
aes.end()
ciphertext_chunked = fd.getvalue()
ciphertext, tag = _aes_encrypt(key, iv, data)
assert ciphertext_chunked == ciphertext