def test_seal_identical_messages_python(self):
aesCCM = AESCCM(self.key, "python", Rijndael(self.key, 16).encrypt)
for _ in range(2):
encData = aesCCM.seal(self.nonce, self.plaintext, self.data)
self.assertEqual(self.ciphertext, encData)
def test_open_identical_messages_8_python(self):
aesCCM = AESCCM(self.key, "python", Rijndael(self.key, 16).encrypt, 8)
for _ in range(2):
decData = aesCCM.open(self.nonce, self.ciphertext_8, self.data)
self.assertEqual(self.plaintext, decData)
def test_seal_with_test_vector_4(self):
key = bytearray(b'\xfe\xff\xe9\x92\x86\x65\x73\x1c' +
b'\x6d\x6a\x8f\x94\x67\x30\x83\x08')
aesCCM = AESCCM(key, "python", Rijndael(key, 16).encrypt)
nonce = bytearray(b'\xca\xfe\xba\xbe\xfa\xce\xdb\xad\xde\xca\xf8\x88')
plaintext = bytearray(b'\xd9\x31\x32\x25\xf8\x84\x06\xe5'
b'\xa5\x59\x09\xc5\xaf\xf5\x26\x9a'
b'\x86\xa7\xa9\x53\x15\x34\xf7\xda'
b'\x2e\x4c\x30\x3d\x8a\x31\x8a\x72'
b'\x1c\x3c\x0c\x95\x95\x68\x09\x53'
b'\x2f\xcf\x0e\x24\x49\xa6\xb5\x25'
b'\xb1\x6a\xed\xf5\xaa\x0d\xe6\x57'
b'\xba\x63\x7b\x39')
data = bytearray(b'\xfe\xed\xfa\xce\xde\xad\xbe\xef'
b'\xfe\xed\xfa\xce\xde\xad\xbe\xef'
b'\xab\xad\xda\xd2')
encData = aesCCM.seal(nonce, plaintext, data)
self.assertEqual(
bytearray(b'\x08\x93\xe9K\x91H\x80\x1a\xf0\xf74&\xab'
b'\xb0\x0e<\xa4\x9b\xf0\x9dy\xa2\x01\'\xa7'
b'\xeb\x19&\xfa\x89\x057\x87\xff\x02\xd0}q'
b'\x81;\x88[\x85\xe7\xf9lN\xed\xf4 \xdb'
b'\x12j\x04Q\xce\x13\xbdA\xba\x028\xc3&'
b'\xb4{4\xf7\x8fe\x9eu'
b'\x10\x96\xcd"'), encData)
def test_seal_with_test_vector_3(self):
key = bytearray(b'\xfe\xff\xe9\x92\x86\x65\x73\x1c'
b'\x6d\x6a\x8f\x94\x67\x30\x83\x08')
aesCCM = AESCCM(key, "python", Rijndael(key, 16).encrypt)
nonce = bytearray(b'\xca\xfe\xba\xbe\xfa\xce\xdb\xad\xde\xca\xf8\x88')
plaintext = bytearray(b'\xd9\x31\x32\x25\xf8\x84\x06\xe5'
b'\xa5\x59\x09\xc5\xaf\xf5\x26\x9a'
b'\x86\xa7\xa9\x53\x15\x34\xf7\xda'
b'\x2e\x4c\x30\x3d\x8a\x31\x8a\x72'
b'\x1c\x3c\x0c\x95\x95\x68\x09\x53'
b'\x2f\xcf\x0e\x24\x49\xa6\xb5\x25'
b'\xb1\x6a\xed\xf5\xaa\x0d\xe6\x57'
b'\xba\x63\x7b\x39\x1a\xaf\xd2\x55')
self.assertEqual(len(plaintext), 4 * 16)
encData = aesCCM.seal(nonce, plaintext, bytearray(0))
self.assertEqual(
bytearray(b"\x08\x93\xe9K\x91H\x80\x1a\xf0\xf74&"
b"\xab\xb0\x0e<\xa4\x9b\xf0\x9dy\xa2"
b"\x01\'\xa7\xeb\x19&\xfa\x89\x057\x87"
b"\xff\x02\xd0}q\x81;\x88[\x85\xe7\xf9"
b"lN\xed\xf4 \xdb\x12j\x04Q\xce\x13\xbdA"
b"\xba\x01\x8d\x1b\xa7\xfc\xece\x99Dg\xa7"
b"{\x8b&B\xde\x91,\x01."), encData)
def test_open_with_invalid_ciphertext(self):
key = bytearray(b'\x01' * 16)
aesCCM = AESCCM(key, "python", Rijndael(key, 16).encrypt)
nonce = bytearray(b'\x02' * 12)
ciphertext = bytearray(b'\xff' * 15)
self.assertIsNone(aesCCM.open(nonce, ciphertext, bytearray(0)))
def test_open_256_small_tag(self):
key = bytearray(b'\x01' * 32)
aesCCM = AESCCM(key, "python", Rijndael(key, 16).encrypt, 8)
nonce = bytearray(b'\x02' * 12)
ciphertext = bytearray(b'IN\x1c\x06\xb8\x0b9SD<\xf8RL'
b'\xb4,=\xa2\x91\x84j1*\x0f\xeb')
plaintext = aesCCM.open(nonce, ciphertext, bytearray(0))
self.assertEqual(plaintext, bytearray(b'text to encrypt.'))
def test_open(self):
key = bytearray(b'\x01' * 16)
aesCCM = AESCCM(key, "python", Rijndael(key, 16).encrypt)
nonce = bytearray(b'\x02' * 12)
ciphertext = bytearray(b'%}Q.\x99\xa3\r\xae\xcbMc\xf2\x16,^\xff\xa0I'
b'\x8e\xf9\xc9F>\xbf\xa4\x00Y\x02p\xe3\xb8\xa2')
plaintext = aesCCM.open(nonce, ciphertext, bytearray(0))
self.assertEqual(plaintext, bytearray(b'text to encrypt.'))
def test_seal_with_invalid_nonce(self):
key = bytearray(b'\x01' * 16)
aesCCM = AESCCM(key, "python", Rijndael(key, 16).encrypt)
nonce = bytearray(b'\x02' * 11)
plaintext = bytearray(b'text to encrypt.')
self.assertEqual(len(plaintext), 16)
with self.assertRaises(ValueError) as err:
aesCCM.seal(nonce, plaintext, bytearray(0))
self.assertEqual("Bad nonce length", str(err.exception))
def test_open_small_tag(self):
key = bytearray(b'\x01' * 16)
aesCCM = AESCCM(key, "python", Rijndael(key, 16).encrypt, 8)
nonce = bytearray(b'\x02' * 12)
ciphertext = bytearray(b'%}Q.\x99\xa3\r\xae\xcbMc\xf2\x16,^\xff\x14'
b'\xb8-?\x7f\xac\x8bI')
plaintext = aesCCM.open(nonce, ciphertext, bytearray(0))
self.assertEqual(plaintext, bytearray(b'text to encrypt.'))
def test_open_with_invalid_nonce(self):
key = bytearray(b'\x01' * 16)
aesCCM = AESCCM(key, "python", Rijndael(key, 16).encrypt)
nonce = bytearray(b'\x02' * 11)
ciphertext = bytearray(b'\'\x81h\x17\xe6Z)\\\xf2\x8emF\xcb\x91\x0eu'
b'z1:\xf6}\xa7\\@\xba\x11\xd8r\xdf#K\xd4')
with self.assertRaises(ValueError) as err:
aesCCM.open(nonce, ciphertext, bytearray(0))
self.assertEqual("Bad nonce length", str(err.exception))
def test_open_with_incorrect_nonce(self):
key = bytearray(b'\x01' * 16)
aesCCM = AESCCM(key, "python", Rijndael(key, 16).encrypt)
nonce = bytearray(b'\x02' * 11 + b'\x01')
ciphertext = bytearray(b'\'\x81h\x17\xe6Z)\\\xf2\x8emF\xcb\x91\x0eu'
b'z1:\xf6}\xa7\\@\xba\x11\xd8r\xdf#K\xd4')
plaintext = aesCCM.open(nonce, ciphertext, bytearray(0))
self.assertIsNone(plaintext)
def test_seal_with_test_vector_1(self):
key = bytearray(b'\x00' * 16)
aesCCM = AESCCM(key, "python", Rijndael(key, 16).encrypt)
nonce = bytearray(b'\x00' * 12)
plaintext = bytearray(b'')
self.assertEqual(len(plaintext), 0)
encData = aesCCM.seal(nonce, plaintext, bytearray(0))
self.assertEqual(
bytearray(b'\xb9\xf6P\xfb<9\xbb\x1b\xee\x0e)\x1d3'
b'\xf6\xae('), encData)
def test_open_256(self):
key = bytearray(b'\x01' * 32)
aesCCM = AESCCM(key, "python", Rijndael(key, 16).encrypt)
nonce = bytearray(b'\x02' * 12)
ciphertext = bytearray(b'IN\x1c\x06\xb8\x0b9SD<\xf8RL'
b'\xb4,=\xd6&d\xae^1\xf8\xbf'
b'\xfa8D\x98\xdd\x14\xb51')
plaintext = aesCCM.open(nonce, ciphertext, bytearray(0))
self.assertEqual(plaintext, bytearray(b'text to encrypt.'))
def test_seal_small_tag(self):
key = bytearray(b'\x01' * 16)
aesCCM = AESCCM(key, "python", Rijndael(key, 16).encrypt, 8)
nonce = bytearray(b'\x02' * 12)
plaintext = bytearray(b'text to encrypt.')
self.assertEqual(len(plaintext), 16)
encData = aesCCM.seal(nonce, plaintext, bytearray(0))
self.assertEqual(
bytearray(b'%}Q.\x99\xa3\r\xae\xcbMc\xf2\x16,^\xff'
b'\x14\xb8-?\x7f\xac\x8bI'), encData)
def test_seal_256_small_tag(self):
key = bytearray(b'\x01' * 32)
aesCCM = AESCCM(key, "python", Rijndael(key, 16).encrypt, 8)
nonce = bytearray(b'\x02' * 12)
plaintext = bytearray(b'text to encrypt.')
self.assertEqual(len(plaintext), 16)
encData = aesCCM.seal(nonce, plaintext, bytearray(0))
self.assertEqual(
bytearray(b'IN\x1c\x06\xb8\x0b9SD<\xf8RL'
b'\xb4,=\xa2\x91\x84j1*\x0f\xeb'), encData)
def test_seal_with_test_vector_5(self):
key = bytearray(32)
aesCCM = AESCCM(key, "python", Rijndael(key, 16).encrypt)
nonce = bytearray(12)
plaintext = bytearray(0)
data = bytearray(0)
encData = aesCCM.seal(nonce, plaintext, data)
self.assertEqual(
bytearray(b'\xa8\x90&^C\xa2hU\xf2i'
b'\xb9?\xf4\xdd\xde\xf6'), encData)
def test_seal_with_test_vector_2(self):
key = bytearray(b'\x00' * 16)
aesCCM = AESCCM(key, "python", Rijndael(key, 16).encrypt)
nonce = bytearray(b'\x00' * 12)
plaintext = bytearray(b'\x00' * 16)
self.assertEqual(len(plaintext), 16)
encData = aesCCM.seal(nonce, plaintext, bytearray(0))
self.assertEqual(
bytearray(b'n\xc7_\xb2\xe2\xb4\x87F\x1e\xdd\xcb\xb8'
b'\x97\x11\x92\xbaMO\xa3\xaf\x0b\xf6\xd3E'
b'Aq0o\xfa\xdd\x9a\xfd'), encData)
def test_seal_256(self):
key = bytearray(b'\x01' * 32)
aesCCM = AESCCM(key, "python", Rijndael(key, 16).encrypt)
nonce = bytearray(b'\x02' * 12)
plaintext = bytearray(b'text to encrypt.')
self.assertEqual(len(plaintext), 16)
encData = aesCCM.seal(nonce, plaintext, bytearray(0))
self.assertEqual(
bytearray(b'IN\x1c\x06\xb8\x0b9SD<\xf8RL'
b'\xb4,=\xd6&d\xae^1\xf8\xbf'
b'\xfa8D\x98\xdd\x14\xb51'), encData)
def test_seal(self):
key = bytearray(b'\x01' * 16)
aesCCM = AESCCM(key, "python", Rijndael(key, 16).encrypt)
nonce = bytearray(b'\x02' * 12)
plaintext = bytearray(b'text to encrypt.')
self.assertEqual(len(plaintext), 16)
encData = aesCCM.seal(nonce, plaintext, bytearray(0))
self.assertEqual(
bytearray(b'%}Q.\x99\xa3\r\xae\xcbMc\xf2\x16,^\xff'
b'\xa0I\x8e\xf9\xc9F>\xbf\xa4\x00Y\x02p'
b'\xe3\xb8\xa2'), encData)
def test_seal_with_test_vector_6(self):
key = bytearray(32)
aesCCM = AESCCM(key, "python", Rijndael(key, 16).encrypt)
nonce = bytearray(12)
plaintext = bytearray(16)
data = bytearray(0)
encData = aesCCM.seal(nonce, plaintext, data)
self.assertEqual(
bytearray(b'\xc1\x94@D\xc8\xe7\xaa\x95\xd2\xde\x95'
b'\x13\xc7\xf3\xdd\x8cK\n>^Q\xf1Q\xeb\x0f'
b'\xfa\xe7\xc4=\x01\x0f\xdb'), encData)
def new(key, tagLength=16):
return AESCCM(key, "python", bytearray(16), tagLength)
def test___init___with_invalid_key(self):
key = bytearray(8)
with self.assertRaises(AssertionError):
aesCCM = AESCCM(key, "python", Rijndael(bytearray(16), 16).encrypt)
def test___init__256_8(self):
key = bytearray(32)
aesCCM = AESCCM(key, "python", Rijndael(key, 16).encrypt, 8)
self.assertIsNotNone(aesCCM)
self.assertEqual(aesCCM.name, "aes256ccm_8")
def test___init__128(self):
key = bytearray(16)
aesCCM = AESCCM(key, "python", Rijndael(key, 16).encrypt)
self.assertIsNotNone(aesCCM)
self.assertEqual(aesCCM.name, "aes128ccm")