Python LRP.eval_lrp Examples

Example #1

File: test_lrp.py Project: lucianox777/nfc-ev2-crypto

def test_cmac_subkeys():
    k = binascii.unhexlify("8195088CE6C393708EBBE6C7914ECB0B")
    kx = binascii.unhexlify("2D22571A33B2965A9B49FF4395A43046")

    k0 = LRP.eval_lrp(LRP.generate_plaintexts(k),
                      LRP.generate_updated_keys(k)[0], b"\x00" * 16, True)
    assert (_Element(k0) * _Element(4)).encode().hex() == kx.hex()

Example #2

def execute_test(KEY, IV, FINALIZE, UPDATEDKEY, RES):
    KEY = binascii.unhexlify(KEY)
    RES = binascii.unhexlify(RES)
    FINALIZE = FINALIZE == 1

    assert LRP.eval_lrp(LRP.generate_plaintexts(KEY), LRP.generate_updated_keys(KEY)[UPDATEDKEY], IV, FINALIZE)\
        .hex().upper() == RES.hex().upper()

Example #3

File: test_lrp.py Project: lucianox777/nfc-ev2-crypto

def test_eval_lrp():
    p = LRP.generate_plaintexts(
        binascii.unhexlify("567826B8DA8E768432A9548DBE4AA3A0"))
    uk = LRP.generate_updated_keys(
        binascii.unhexlify("567826B8DA8E768432A9548DBE4AA3A0"))
    assert LRP.eval_lrp(p, uk[2], b"\x13\x59", final=True).hex() \
        == "1ba2c0c578996bc497dd181c6885a9dd"

    p = LRP.generate_plaintexts(
        binascii.unhexlify("88B95581002057A93E421EFE4076338B"))
    uk = LRP.generate_updated_keys(
        binascii.unhexlify("88B95581002057A93E421EFE4076338B"))
    assert LRP.eval_lrp(p, uk[2], b"\x77\x29\x9D", final=True).hex() \
        == "E9C04556A214AC3297B83E4BDF46F142".lower()

    p = LRP.generate_plaintexts(
        binascii.unhexlify("9AFF3EF56FFEC3153B1CADB48B445409"))
    uk = LRP.generate_updated_keys(
        binascii.unhexlify("9AFF3EF56FFEC3153B1CADB48B445409"))
    assert LRP.eval_lrp(p, uk[3], b"\x4B\x07\x3B\x24\x7C\xD4\x8F\x7E\x0A", final=False).hex() \
        == "909415E5C8BE77563050F2227E17C0E4".lower()