def test_seal_cfpa():
cfpa = CFPA('lpc55s6x')
data = cfpa.export(add_seal=False)
assert len(data) == 512
assert data[0x1e0:] == bytes(32)
data = cfpa.export(add_seal=True)
assert len(data) == 512
assert data[0x1e0:] == CFPA.MARK * 8
def test_seal_cmpa_n4analog():
cfpa = CFPA('lpc55s3x')
data = cfpa.export(add_seal=False)
assert len(data) == 512
assert data[0x1e0:] == bytes(32)
data = cfpa.export(add_seal=True)
assert len(data) == 512
assert data[0x1ec:0x1f0] == CFPA.MARK
def test_seal_cmpa_lpc55s3x():
"""Test PFR tool - Test CMPA seal on LPC55S3x."""
cfpa = CFPA("lpc55s3x")
data = cfpa.export(add_seal=False)
assert len(data) == 512
assert data[0x1E0:] == bytes(32)
data = cfpa.export(add_seal=True)
assert len(data) == 512
assert data[0x1EC:0x1F0] == CFPA.MARK
def test_seal_cfpa():
"""Test PFR tool - Test CFPA seal."""
cfpa = CFPA("lpc55s6x")
data = cfpa.export(add_seal=False)
assert len(data) == 512
assert data[0x1E0:] == bytes(32)
data = cfpa.export(add_seal=True)
assert len(data) == 512
assert data[0x1E0:] == CFPA.MARK * 8
def test_generate_cfpa(data_dir):
"""Test PFR tool - Generating CFPA binary."""
binary = load_file(data_dir, "CFPA_test.bin", mode="rb")
pfr_cfg_json = PfrConfiguration(os.path.join(data_dir, "cfpa_test.json"))
cfpa_json = CFPA("lpc55s6x", user_config=pfr_cfg_json)
assert cfpa_json.export(add_seal=True) == binary
pfr_cfg_yml = PfrConfiguration(os.path.join(data_dir, "cfpa_test.yml"))
cfpa_yml = CFPA("lpc55s6x", user_config=pfr_cfg_yml)
assert cfpa_yml.export(add_seal=True) == binary
def test_generate_cfpa(data_dir):
config = json.loads(load_file(data_dir, 'cfpa_test.json'))
binary = load_file(data_dir, 'CFPA_test.bin', mode='rb')
cfpa = CFPA('lpc55s6x', user_config=config['settings'])
data = cfpa.export(add_seal=True, compute_inverses=False)
assert binary == data
def test_lpc55s3x_load_yml_without_change(data_dir):
"""Test silicon LPC55S3x mandatory computing of antipole values."""
cfpa = CFPA(user_config=PfrConfiguration(f"{data_dir}/cfpa_no_change.yml"))
data = cfpa.export()
assert len(data) == 512
with open(data_dir + "/lpc55s3x_CFPA_basic.bin", "rb") as binary:
assert data == binary.read()
def generate_pfr() -> None:
"""Generate CFPA data.
Alternatively, to generate data you may use the `pfr` commandline utility
After generating the data, you can upload them to the device using McuBoot.write_memory
!!! Caution !!!
Incorrectly configured data may lock the device from further use
"""
with open(os.path.join(DATA_DIR, "cfpa_test.json")) as config_file:
config_data = json.load(config_file)
cfpa = CFPA("lpc55xx", user_config=config_data)
cfpa_data = cfpa.export()
with open(os.path.join(THIS_DIR, "cfpa.bin"), "wb") as binary_file:
binary_file.write(cfpa_data)
def test_missing_rotkh():
"""Simple test to check right functionality of missing ROTKH."""
cfpa = CFPA("lpc55s6x")
with pytest.raises(SPSDKPfrRotkhIsNotPresent):
cfpa.export(keys=["Invalid"])