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import pytest
import cffi
from enum import Enum
ffi = cffi.FFI()
gs = ffi.string
RFC_SECRET = '12345678901234567890'
class DefaultPasswords(Enum):
ADMIN = '12345678'
USER = '123456'
ADMIN_TEMP = '123123123'
USER_TEMP = '234234234'
class DeviceErrorCode(Enum):
STATUS_OK = 0
NOT_PROGRAMMED = 3
WRONG_PASSWORD = 4
STATUS_NOT_AUTHORIZED = 5
@pytest.fixture(scope="module")
def C(request):
fp = '../NK_C_API.h'
declarations = []
with open(fp, 'r') as f:
declarations = f.readlines()
a = iter(declarations)
for declaration in a:
if declaration.startswith('extern') and not '"C"' in declaration:
declaration = declaration.replace('extern', '').strip()
while not ';' in declaration:
declaration += (next(a)).strip()
print(declaration)
ffi.cdef(declaration)
C = ffi.dlopen("../build/libnitrokey.so")
C.NK_set_debug(False)
C.NK_login('P')
# assert C.NK_first_authenticate(DefaultPasswords.ADMIN, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
# assert C.NK_user_authenticate(DefaultPasswords.USER, DefaultPasswords.USER_TEMP) == DeviceErrorCode.STATUS_OK
# C.NK_status()
def fin():
print('\nFinishing connection to device')
C.NK_logout()
print('Finished')
request.addfinalizer(fin)
C.NK_set_debug(True)
return C
def test_enable_password_safe(C):
assert C.NK_lock_device() == DeviceErrorCode.STATUS_OK
assert C.NK_enable_password_safe('wrong_password') == DeviceErrorCode.WRONG_PASSWORD
assert C.NK_enable_password_safe(DefaultPasswords.USER) == DeviceErrorCode.STATUS_OK
def test_write_password_safe_slot(C):
assert C.NK_lock_device() == DeviceErrorCode.STATUS_OK
assert C.NK_write_password_safe_slot(0, 'slotname1', 'login1', 'pass1') == DeviceErrorCode.STATUS_NOT_AUTHORIZED
assert C.NK_enable_password_safe(DefaultPasswords.USER) == DeviceErrorCode.STATUS_OK
assert C.NK_write_password_safe_slot(0, 'slotname1', 'login1', 'pass1') == DeviceErrorCode.STATUS_OK
def test_get_password_safe_slot_name(C):
assert C.NK_enable_password_safe(DefaultPasswords.USER) == DeviceErrorCode.STATUS_OK
assert C.NK_write_password_safe_slot(0, 'slotname1', 'login1', 'pass1') == DeviceErrorCode.STATUS_OK
assert C.NK_lock_device() == DeviceErrorCode.STATUS_OK
assert gs(C.NK_get_password_safe_slot_name(0)) == ''
assert C.NK_get_last_command_status() == DeviceErrorCode.STATUS_NOT_AUTHORIZED
assert C.NK_enable_password_safe(DefaultPasswords.USER) == DeviceErrorCode.STATUS_OK
assert gs(C.NK_get_password_safe_slot_name(0)) == 'slotname1'
assert C.NK_get_last_command_status() == DeviceErrorCode.STATUS_OK
def test_get_password_safe_slot_login_password(C):
assert C.NK_enable_password_safe(DefaultPasswords.USER) == DeviceErrorCode.STATUS_OK
assert C.NK_write_password_safe_slot(0, 'slotname1', 'login1', 'pass1') == DeviceErrorCode.STATUS_OK
slot_login = C.NK_get_password_safe_slot_login(0)
assert C.NK_get_last_command_status() == DeviceErrorCode.STATUS_OK
assert gs(slot_login) == 'login1'
slot_password = gs(C.NK_get_password_safe_slot_password(0))
assert C.NK_get_last_command_status() == DeviceErrorCode.STATUS_OK
assert slot_password == 'pass1'
def test_erase_password_safe_slot(C):
assert C.NK_enable_password_safe(DefaultPasswords.USER) == DeviceErrorCode.STATUS_OK
assert C.NK_erase_password_safe_slot(0) == DeviceErrorCode.STATUS_OK
assert gs(C.NK_get_password_safe_slot_name(0)) == ''
assert C.NK_get_last_command_status() == DeviceErrorCode.STATUS_OK # TODO CHECK shouldn't this be DeviceErrorCode.NOT_PROGRAMMED ?
def test_password_safe_slot_status(C):
C.NK_set_debug(True)
assert C.NK_enable_password_safe(DefaultPasswords.USER) == DeviceErrorCode.STATUS_OK
assert C.NK_erase_password_safe_slot(0) == DeviceErrorCode.STATUS_OK
assert C.NK_write_password_safe_slot(1, 'slotname2', 'login2', 'pass2') == DeviceErrorCode.STATUS_OK
safe_slot_status = C.NK_get_password_safe_slot_status()
assert C.NK_get_last_command_status() == DeviceErrorCode.STATUS_OK
is_slot_programmed = list(ffi.cast("uint8_t [16]", safe_slot_status)[0:16])
print((is_slot_programmed, len(is_slot_programmed)))
assert is_slot_programmed[0] == 0
assert is_slot_programmed[1] == 1
@pytest.mark.xfail(run=False, reason="issue to register, skipping for now")
def test_issue_device_locks_on_second_key_generation_in_sequence(C):
assert C.NK_build_aes_key(DefaultPasswords.ADMIN) == DeviceErrorCode.STATUS_OK
assert C.NK_build_aes_key(DefaultPasswords.ADMIN) == DeviceErrorCode.STATUS_OK
def test_regenerate_aes_key(C):
C.NK_set_debug(True)
assert C.NK_first_authenticate(DefaultPasswords.ADMIN, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
assert C.NK_build_aes_key(DefaultPasswords.ADMIN) == DeviceErrorCode.STATUS_OK
assert C.NK_enable_password_safe(DefaultPasswords.USER) == DeviceErrorCode.STATUS_OK
@pytest.mark.xfail(reason="firmware bug: regenerating AES key command not always results in cleared slot data")
def test_destroy_password_safe(C):
"""
Sometimes fails on NK Pro - slot name is not cleared ergo key generation has not succeed despite the success result
returned from the device
"""
C.NK_set_debug(True)
assert C.NK_enable_password_safe(DefaultPasswords.USER) == DeviceErrorCode.STATUS_OK
# write password safe slot
assert C.NK_write_password_safe_slot(0, 'slotname1', 'login1', 'pass1') == DeviceErrorCode.STATUS_OK
# read slot
assert gs(C.NK_get_password_safe_slot_name(0)) == 'slotname1'
assert C.NK_get_last_command_status() == DeviceErrorCode.STATUS_OK
slot_login = C.NK_get_password_safe_slot_login(0)
assert C.NK_get_last_command_status() == DeviceErrorCode.STATUS_OK
assert gs(slot_login) == 'login1'
# destroy password safe by regenerating aes key
assert C.NK_lock_device() == DeviceErrorCode.STATUS_OK
assert C.NK_first_authenticate(DefaultPasswords.ADMIN, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
assert C.NK_build_aes_key(DefaultPasswords.ADMIN) == DeviceErrorCode.STATUS_OK
assert C.NK_enable_password_safe(DefaultPasswords.USER) == DeviceErrorCode.STATUS_OK
assert gs(C.NK_get_password_safe_slot_name(0)) != 'slotname1'
assert C.NK_get_last_command_status() == DeviceErrorCode.STATUS_OK
# check was slot status cleared
safe_slot_status = C.NK_get_password_safe_slot_status()
assert C.NK_get_last_command_status() == DeviceErrorCode.STATUS_OK
is_slot_programmed = list(ffi.cast("uint8_t [16]", safe_slot_status)[0:16])
assert is_slot_programmed[0] == 0
def test_is_AES_supported(C):
assert C.NK_is_AES_supported('wrong password') != 1
assert C.NK_get_last_command_status() == DeviceErrorCode.WRONG_PASSWORD
assert C.NK_is_AES_supported(DefaultPasswords.USER) == 1
assert C.NK_get_last_command_status() == DeviceErrorCode.STATUS_OK
def test_admin_PIN_change(C):
new_password = '123123123'
assert C.NK_change_admin_PIN('wrong_password', new_password) == DeviceErrorCode.WRONG_PASSWORD
assert C.NK_change_admin_PIN(DefaultPasswords.ADMIN, new_password) == DeviceErrorCode.STATUS_OK
assert C.NK_change_admin_PIN(new_password, DefaultPasswords.ADMIN) == DeviceErrorCode.STATUS_OK
def test_user_PIN_change(C):
new_password = '123123123'
assert C.NK_change_user_PIN('wrong_password', new_password) == DeviceErrorCode.WRONG_PASSWORD
assert C.NK_change_user_PIN(DefaultPasswords.USER, new_password) == DeviceErrorCode.STATUS_OK
assert C.NK_change_user_PIN(new_password, DefaultPasswords.USER) == DeviceErrorCode.STATUS_OK
def test_admin_retry_counts(C):
default_admin_retry_count = 3
assert C.NK_get_admin_retry_count() == default_admin_retry_count
assert C.NK_change_admin_PIN('wrong_password', DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.WRONG_PASSWORD
assert C.NK_get_admin_retry_count() == default_admin_retry_count - 1
assert C.NK_change_admin_PIN(DefaultPasswords.ADMIN, DefaultPasswords.ADMIN) == DeviceErrorCode.STATUS_OK
assert C.NK_get_admin_retry_count() == default_admin_retry_count
def test_user_retry_counts(C):
default_user_retry_count = 3
assert C.NK_get_user_retry_count() == default_user_retry_count
assert C.NK_enable_password_safe('wrong_password') == DeviceErrorCode.WRONG_PASSWORD
assert C.NK_get_user_retry_count() == default_user_retry_count - 1
assert C.NK_enable_password_safe(DefaultPasswords.USER) == DeviceErrorCode.STATUS_OK
assert C.NK_get_user_retry_count() == default_user_retry_count
def test_unlock_user_password(C):
C.NK_set_debug(True)
default_user_retry_count = 3
default_admin_retry_count = 3
new_password = '123123123'
assert C.NK_get_user_retry_count() == default_user_retry_count
assert C.NK_change_user_PIN('wrong_password', new_password) == DeviceErrorCode.WRONG_PASSWORD
assert C.NK_change_user_PIN('wrong_password', new_password) == DeviceErrorCode.WRONG_PASSWORD
assert C.NK_change_user_PIN('wrong_password', new_password) == DeviceErrorCode.WRONG_PASSWORD
assert C.NK_get_user_retry_count() == default_user_retry_count - 3
assert C.NK_get_admin_retry_count() == default_admin_retry_count
assert C.NK_unlock_user_password('wrong password', DefaultPasswords.USER) == DeviceErrorCode.WRONG_PASSWORD
assert C.NK_get_admin_retry_count() == default_admin_retry_count - 1
assert C.NK_unlock_user_password(DefaultPasswords.ADMIN, DefaultPasswords.USER) == DeviceErrorCode.STATUS_OK
assert C.NK_get_user_retry_count() == default_user_retry_count
assert C.NK_get_admin_retry_count() == default_admin_retry_count
def test_admin_auth(C):
assert C.NK_first_authenticate('wrong_password', DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.WRONG_PASSWORD
assert C.NK_first_authenticate(DefaultPasswords.ADMIN, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
def test_user_auth(C):
assert C.NK_user_authenticate('wrong_password', DefaultPasswords.USER_TEMP) == DeviceErrorCode.WRONG_PASSWORD
assert C.NK_user_authenticate(DefaultPasswords.USER, DefaultPasswords.USER_TEMP) == DeviceErrorCode.STATUS_OK
def check_HOTP_RFC_codes(C, func, prep=None, use_8_digits=False):
"""
# https://tools.ietf.org/html/rfc4226#page-32
"""
assert C.NK_first_authenticate(DefaultPasswords.ADMIN, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
assert C.NK_write_hotp_slot(1, 'python_test', RFC_SECRET, 0, use_8_digits, False, False, "",
DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
test_data = [
1284755224, 1094287082, 137359152, 1726969429, 1640338314, 868254676, 1918287922, 82162583, 673399871,
645520489,
]
for code in test_data:
if prep:
prep()
r = func(1)
code = str(code)[-8:] if use_8_digits else str(code)[-6:]
assert int(code) == r
@pytest.mark.parametrize("use_8_digits", [False, True, ])
@pytest.mark.parametrize("use_pin_protection", [False, True, ])
def test_HOTP_RFC_use8digits_usepin(C, use_8_digits, use_pin_protection):
assert C.NK_first_authenticate(DefaultPasswords.ADMIN, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
assert C.NK_write_config(255, 255, 255, use_pin_protection, not use_pin_protection,
DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
if use_pin_protection:
check_HOTP_RFC_codes(C,
lambda x: C.NK_get_hotp_code_PIN(x, DefaultPasswords.USER_TEMP),
lambda: C.NK_user_authenticate(DefaultPasswords.USER, DefaultPasswords.USER_TEMP),
use_8_digits=use_8_digits)
else:
check_HOTP_RFC_codes(C, C.NK_get_hotp_code, use_8_digits=use_8_digits)
@pytest.mark.xfail(reason="firmware bug: set time command not always changes the time on stick thus failing this test, "
"this does not influence normal use since setting time is not done every TOTP code request")
@pytest.mark.parametrize("PIN_protection", [False, True, ])
def test_TOTP_RFC_usepin(C, PIN_protection):
assert C.NK_first_authenticate(DefaultPasswords.ADMIN, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
assert C.NK_write_config(255, 255, 255, PIN_protection, not PIN_protection,
DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
# test according to https://tools.ietf.org/html/rfc6238#appendix-B
assert C.NK_first_authenticate(DefaultPasswords.ADMIN, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
assert C.NK_write_totp_slot(1, 'python_test', RFC_SECRET, 30, True, False, False, "",
DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
get_func = None
if PIN_protection:
get_func = lambda x, y, z, r: C.NK_get_totp_code_PIN(x, y, z, r, DefaultPasswords.USER_TEMP)
else:
get_func = C.NK_get_totp_code
test_data = [
(59, 1, 94287082),
(1111111109, 0x00000000023523EC, 7081804),
(1111111111, 0x00000000023523ED, 14050471),
(1234567890, 0x000000000273EF07, 89005924),
]
for t, T, code in test_data:
"""
FIXME without the delay 50% of tests fails, with it only 12%, higher delay removes fails
-> set_time function not always works, to investigate why
"""
# import time
# time.sleep(2)
assert C.NK_first_authenticate(DefaultPasswords.ADMIN, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
if PIN_protection:
C.NK_user_authenticate(DefaultPasswords.USER, DefaultPasswords.USER_TEMP)
assert C.NK_totp_set_time(t) == DeviceErrorCode.STATUS_OK # FIXME needs admin authentication
r = get_func(1, T, 0, 30) # FIXME T is not changing the outcome
assert code == r
def test_get_slot_names(C):
C.NK_set_debug(True)
assert C.NK_first_authenticate(DefaultPasswords.ADMIN, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
assert C.NK_erase_totp_slot(0, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
# erasing slot invalidates temporary password, so requesting authentication
assert C.NK_first_authenticate(DefaultPasswords.ADMIN, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
assert C.NK_erase_hotp_slot(0, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
for i in range(15):
name = ffi.string(C.NK_get_totp_slot_name(i))
if name == '':
assert C.NK_get_last_command_status() == DeviceErrorCode.NOT_PROGRAMMED
for i in range(3):
name = ffi.string(C.NK_get_hotp_slot_name(i))
if name == '':
assert C.NK_get_last_command_status() == DeviceErrorCode.NOT_PROGRAMMED
def test_get_OTP_codes(C):
assert C.NK_first_authenticate(DefaultPasswords.ADMIN, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
assert C.NK_write_config(255, 255, 255, False, True, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
assert C.NK_first_authenticate(DefaultPasswords.ADMIN, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
assert C.NK_erase_hotp_slot(0, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
assert C.NK_first_authenticate(DefaultPasswords.ADMIN, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
assert C.NK_erase_totp_slot(0, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
for i in range(15):
code = C.NK_get_totp_code(i, 0, 0, 0)
if code == 0:
assert C.NK_get_last_command_status() == DeviceErrorCode.NOT_PROGRAMMED
for i in range(3):
code = C.NK_get_hotp_code(i)
if code == 0:
assert C.NK_get_last_command_status() == DeviceErrorCode.NOT_PROGRAMMED
def test_get_code_user_authorize(C):
C.NK_set_debug(True)
assert C.NK_first_authenticate(DefaultPasswords.ADMIN, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
assert C.NK_write_totp_slot(0, 'python_otp_auth', RFC_SECRET, 30, True, False, False, "",
DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
# enable PIN protection of OTP codes with write_config
# TODO create convinience function on C API side to enable/disable OTP USER_PIN protection
assert C.NK_first_authenticate(DefaultPasswords.ADMIN, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
assert C.NK_write_config(255, 255, 255, True, False, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
code = C.NK_get_totp_code(0, 0, 0, 0)
assert code == 0
assert C.NK_get_last_command_status() == DeviceErrorCode.STATUS_NOT_AUTHORIZED
# disable PIN protection with write_config
assert C.NK_first_authenticate(DefaultPasswords.ADMIN, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
assert C.NK_write_config(255, 255, 255, False, True, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
code = C.NK_get_totp_code(0, 0, 0, 0)
assert code != 0
assert C.NK_get_last_command_status() == DeviceErrorCode.STATUS_OK
def cast_pointer_to_tuple(obj, typen, len):
# usage:
# config = cast_pointer_to_tuple(config_raw_data, 'uint8_t', 5)
return tuple(ffi.cast("%s [%d]" % (typen, len), obj)[0:len])
def test_read_write_config(C):
C.NK_set_debug(True)
# let's set sample config with pin protection and disabled scrolllock
assert C.NK_first_authenticate(DefaultPasswords.ADMIN, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
assert C.NK_write_config(0, 1, 2, True, False, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
config_raw_data = C.NK_read_config()
assert C.NK_get_last_command_status() == DeviceErrorCode.STATUS_OK
config = cast_pointer_to_tuple(config_raw_data, 'uint8_t', 5)
assert config == (0, 1, 2, True, False)
# restore defaults and check
assert C.NK_first_authenticate(DefaultPasswords.ADMIN, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
assert C.NK_write_config(255, 255, 255, False, True, DefaultPasswords.ADMIN_TEMP) == DeviceErrorCode.STATUS_OK
config_raw_data = C.NK_read_config()
assert C.NK_get_last_command_status() == DeviceErrorCode.STATUS_OK
config = cast_pointer_to_tuple(config_raw_data, 'uint8_t', 5)
assert config == (255, 255, 255, False, True)
|
