python-fido2/test/test_cbor.py

# coding=utf-8

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from __future__ import unicode_literals

from fido_host import cbor
from binascii import a2b_hex, b2a_hex
import unittest


_TEST_VECTORS = [
    ('00', 0),
    ('01', 1),
    ('0a', 10),
    ('17', 23),
    ('1818', 24),
    ('1819', 25),
    ('1864', 100),
    ('1903e8', 1000),
    ('1a000f4240', 1000000),
    ('1b000000e8d4a51000', 1000000000000),
    ('1bffffffffffffffff', 18446744073709551615),
    # ('c249010000000000000000', 18446744073709551616),
    ('3bffffffffffffffff', -18446744073709551616),
    # ('c349010000000000000000', -18446744073709551617),
    ('20', -1),
    ('29', -10),
    ('3863', -100),
    ('3903e7', -1000),
    # ('f90000', 0.0),
    # ('f98000', -0.0),
    # ('f93c00', 1.0),
    # ('fb3ff199999999999a', 1.1),
    # ('f93e00', 1.5),
    # ('f97bff', 65504.0),
    # ('fa47c35000', 100000.0),
    # ('fa7f7fffff', 3.4028234663852886e+38),
    # ('fb7e37e43c8800759c', 1e+300),
    # ('f90001', 5.960464477539063e-08),
    # ('f90400', 6.103515625e-05),
    # ('f9c400', -4.0),
    # ('fbc010666666666666', -4.1),
    # ('f97c00', None),
    # ('f97e00', None),
    # ('f9fc00', None),
    # ('fa7f800000', None),
    # ('fa7fc00000', None),
    # ('faff800000', None),
    # ('fb7ff0000000000000', None),
    # ('fb7ff8000000000000', None),
    # ('fbfff0000000000000', None),
    ('f4', False),
    ('f5', True),
    # ('f6', None),
    # ('f7', None),
    # ('f0', None),
    # ('f818', None),
    # ('f8ff', None),
    # ('c074323031332d30332d32315432303a30343a30305a', None),
    # ('c11a514b67b0', None),
    # ('c1fb41d452d9ec200000', None),
    # ('d74401020304', None),
    # ('d818456449455446', None),
    # ('d82076687474703a2f2f7777772e6578616d706c652e636f6d', None),
    ('40', b''),
    ('4401020304', b'\1\2\3\4'),
    ('60', ''),
    ('6161', 'a'),
    ('6449455446', 'IETF'),
    ('62225c', '"\\'),
    ('62c3bc', 'ü'),
    ('63e6b0b4', '水'),
    ('64f0908591', '𐅑'),
    ('80', []),
    ('83010203', [1, 2, 3]),
    ('8301820203820405', [1, [2, 3], [4, 5]]),
    ('98190102030405060708090a0b0c0d0e0f101112131415161718181819', [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25]),  # noqa
    ('a0', {}),
    ('a201020304', {1: 2, 3: 4}),
    ('a26161016162820203', {'a': 1, 'b': [2, 3]}),
    ('826161a161626163', ['a', {'b': 'c'}]),
    ('a56161614161626142616361436164614461656145', {'c': 'C', 'd': 'D', 'a': 'A', 'b': 'B', 'e': 'E'}),  # noqa
    # ('5f42010243030405ff', None),
    # ('7f657374726561646d696e67ff', 'streaming'),
    # ('9fff', []),
    # ('9f018202039f0405ffff', [1, [2, 3], [4, 5]]),
    # ('9f01820203820405ff', [1, [2, 3], [4, 5]]),
    # ('83018202039f0405ff', [1, [2, 3], [4, 5]]),
    # ('83019f0203ff820405', [1, [2, 3], [4, 5]]),
    # ('9f0102030405060708090a0b0c0d0e0f101112131415161718181819ff', [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25]),  # noqa
    # ('bf61610161629f0203ffff', {'a': 1, 'b': [2, 3]}),
    # ('826161bf61626163ff', ['a', {'b': 'c'}]),
    # ('bf6346756ef563416d7421ff', {'Amt': -2, 'Fun': True}),
]


def cbor2hex(data):
    return b2a_hex(cbor.dumps(data)).decode()


class TestCborTestVectors(unittest.TestCase):
    """
    From https://github.com/cbor/test-vectors
    Unsupported values are commented out.
    """

    def test_vectors(self):
        for (data, value) in _TEST_VECTORS:
            try:
                self.assertEqual(cbor.loads(a2b_hex(data)), (value, b''))
                self.assertEqual(cbor2hex(value), data)
            except Exception:
                print('\nERROR in test vector, %s' % data)
                raise


class TestFidoCanonical(unittest.TestCase):
    """
    As defined in section 6 of:
    https://fidoalliance.org/specs/fido-v2.0-ps-20170927/fido-client-to-authenticator-protocol-v2.0-ps-20170927.html
    """

    def test_integers(self):
        self.assertEqual(cbor2hex(0), '00')
        self.assertEqual(cbor2hex(0), '00')
        self.assertEqual(cbor2hex(23), '17')
        self.assertEqual(cbor2hex(24), '1818')
        self.assertEqual(cbor2hex(255), '18ff')
        self.assertEqual(cbor2hex(256), '190100')
        self.assertEqual(cbor2hex(65535), '19ffff')
        self.assertEqual(cbor2hex(65536), '1a00010000')
        self.assertEqual(cbor2hex(4294967295), '1affffffff')
        self.assertEqual(cbor2hex(4294967296), '1b0000000100000000')
        self.assertEqual(cbor2hex(-1), '20')
        self.assertEqual(cbor2hex(-24), '37')
        self.assertEqual(cbor2hex(-25), '3818')

    def test_key_order(self):
        self.assertEqual(cbor2hex({
            '3': 0,
            b'2': 0,
            1: 0
        }), 'a30100413200613300')

        self.assertEqual(cbor2hex({
            '3': 0,
            b'': 0,
            256: 0
        }), 'a3190100004000613300')

        self.assertEqual(cbor2hex({
            4294967296: 0,
            255: 0,
            256: 0,
            0: 0
        }), 'a4000018ff00190100001b000000010000000000')

        self.assertEqual(cbor2hex({
            b'22': 0,
            b'3': 0,
            b'111': 0
        }), 'a3413300423232004331313100')

        self.assertEqual(cbor2hex({
            b'001': 0,
            b'003': 0,
            b'002': 0
        }), 'a3433030310043303032004330303300')

        self.assertEqual(cbor2hex({
            True: 0,
            False: 0
        }), 'a2f400f500')