trezor-firmware/core/tests/test_trezor.crypto.crc.py

from common import *  # isort:skip

from trezor.crypto import crc


class TestCryptoCrc(unittest.TestCase):

    vectors_crc32 = [
        ("123456789", 0xCBF43926),
        (
            unhexlify(
                "0000000000000000000000000000000000000000000000000000000000000000"
            ),
            0x190A55AD,
        ),
        (
            unhexlify(
                "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
            ),
            0xFF6CAB0B,
        ),
        (
            unhexlify(
                "000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F"
            ),
            0x91267E8A,
        ),
        ("The quick brown fox jumps over the lazy dog", 0x414FA339),
    ]

    def test_crc32(self):
        for i, o in self.vectors_crc32:
            self.assertEqual(crc.crc32(i), o)


if __name__ == "__main__":
    unittest.main()