87 lines
2.8 KiB
Python
87 lines
2.8 KiB
Python
"""
|
|
/*
|
|
* This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
|
|
* Copyright (c) 2022 Pol Henarejos.
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, version 3.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
"""
|
|
|
|
import pytest
|
|
import os
|
|
from cryptography.hazmat.primitives import hashes
|
|
from cryptography.hazmat.primitives.kdf.pbkdf2 import PBKDF2HMAC
|
|
from cryptography import exceptions
|
|
from picohsm.const import DEFAULT_DKEK_SHARES
|
|
from const import DEFAULT_DKEK
|
|
from picohsm import DOPrefixes
|
|
|
|
INFO = b'info message'
|
|
|
|
def test_prepare_kd(device):
|
|
device.initialize(dkek_shares=DEFAULT_DKEK_SHARES)
|
|
resp = device.import_dkek(DEFAULT_DKEK)
|
|
resp = device.import_dkek(DEFAULT_DKEK)
|
|
|
|
@pytest.mark.parametrize(
|
|
"size", [128, 192, 256]
|
|
)
|
|
@pytest.mark.parametrize(
|
|
"algo", [hashes.SHA1, hashes.SHA224, hashes.SHA256, hashes.SHA384, hashes.SHA512]
|
|
)
|
|
@pytest.mark.parametrize(
|
|
"out_len", [32, 64, 256, 1024]
|
|
)
|
|
@pytest.mark.parametrize(
|
|
"iterations", [1024, 2048]
|
|
)
|
|
class TestPBKDF2:
|
|
def test_pbkdf2_ok(self, device, size, algo, out_len, iterations):
|
|
pkey = os.urandom(size // 8)
|
|
keyid = device.import_key(pkey)
|
|
salt = os.urandom(16)
|
|
resA = device.pbkdf2(algo, keyid, salt, iterations=iterations, out_len=out_len)
|
|
device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
|
|
kdf = PBKDF2HMAC(
|
|
algorithm=algo(),
|
|
length=out_len,
|
|
salt=salt,
|
|
iterations=iterations,
|
|
)
|
|
resB = kdf.derive(pkey)
|
|
assert(bytes(resA) == resB)
|
|
kdf = PBKDF2HMAC(
|
|
algorithm=algo(),
|
|
length=out_len,
|
|
salt=salt,
|
|
iterations=iterations,
|
|
)
|
|
kdf.verify(pkey, bytes(resA))
|
|
|
|
def test_pbkdf2_fail(self, device, size, algo, out_len, iterations):
|
|
pkey = os.urandom(size // 8)
|
|
keyid = device.import_key(pkey)
|
|
salt = os.urandom(16)
|
|
resA = device.pbkdf2(algo, keyid, salt, iterations=iterations, out_len=out_len)
|
|
device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
|
|
|
|
kdf = PBKDF2HMAC(
|
|
algorithm=algo(),
|
|
length=out_len,
|
|
salt=salt,
|
|
iterations=iterations,
|
|
)
|
|
pkey = os.urandom(size // 8)
|
|
with pytest.raises(exceptions.InvalidKey):
|
|
kdf.verify(pkey, bytes(resA))
|