def test_encrypt():
assert Cryptographer.encrypt(data, key) == encrypted_data
def test_decrypt():
# Valid data should run with no InvalidTag and verify
assert Cryptographer.decrypt(encrypted_data, key) == data
def test_encrypt_odd_length_data():
blob = get_random_value_hex(64)[-1]
key = get_random_value_hex(32)
with pytest.raises(InvalidParameter, match="Odd-length"):
Cryptographer.encrypt(blob, key)
def test_encrypt_wrong_key_size():
blob = get_random_value_hex(64)
key = get_random_value_hex(31)
with pytest.raises(InvalidParameter, match="32-byte hex value"):
Cryptographer.encrypt(blob, key)
def test_check_data_key_format_wrong_key():
data = get_random_value_hex(64)
key = get_random_value_hex(33)
with pytest.raises(InvalidParameter, match="32-byte hex value"):
Cryptographer.check_data_key_format(data, key)
def test_check_data_key_format():
data = get_random_value_hex(64)
key = get_random_value_hex(32)
# Correct format does not raise anything
Cryptographer.check_data_key_format(data, key)
def test_get_compressed_pk_wrong_type():
# Passing a value that is not a PublicKey will make it to fail too
pk = get_random_value_hex(33)
with pytest.raises(InvalidParameter, match="Wrong value passed as pk"):
Cryptographer.get_compressed_pk(pk)
def test_get_compressed_pk_wrong_key():
# pk should be properly initialized. Initializing from int will cause it to not be recoverable
pk = PublicKey(0)
with pytest.raises(InvalidKey, match="PublicKey has invalid initializer"):
Cryptographer.get_compressed_pk(pk)
def test_get_compressed_pk():
sk, pk = generate_keypair()
compressed_pk = Cryptographer.get_compressed_pk(pk)
assert isinstance(compressed_pk, str) and len(compressed_pk) == 66
assert compressed_pk[:2] in ["02", "03"]
def test_check_data_key_format_wrong_data():
data = get_random_value_hex(64)[:-1]
key = get_random_value_hex(32)
with pytest.raises(InvalidParameter, match="Odd-length"):
Cryptographer.check_data_key_format(data, key)
def test_sign_wrong_sk():
# If a sk is not passed, sign will return None
for wtype in WRONG_TYPES:
with pytest.raises(InvalidParameter, match="Wrong value passed as sk"):
Cryptographer.sign(b"", wtype)