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# Copyright 2015 Egor Tensin <Egor.Tensin@gmail.com>
# This file is licensed under the terms of the MIT License.
# See LICENSE.txt for details.
from collections import OrderedDict
import configparser
from datetime import datetime
import logging
import os.path
import sys
import toolkit
import zipfile
class _MultiOrderedDict(OrderedDict):
def __setitem__(self, key, value):
if isinstance(value, list) and key in self:
self[key].extend(value)
else:
super(OrderedDict, self).__setitem__(key, value)
def _gen_inputs(cls, keys, plaintexts, init_vectors):
if init_vectors is None:
init_vectors = [None for key in keys]
for key, plaintext, iv in zip(keys, plaintexts, init_vectors):
yield cls(key, [plaintext], iv)
def _gen_encryption_inputs(keys, plaintexts, init_vectors):
return _gen_inputs(toolkit.EncryptionInput, keys, plaintexts, init_vectors)
def _gen_decryption_inputs(keys, ciphertexts, init_vectors):
return _gen_inputs(toolkit.DecryptionInput, keys, ciphertexts, init_vectors)
def _split_into_chunks(expected_output, inputs, max_len=100):
for i in range(0, len(inputs), max_len):
yield expected_output[i:i+max_len], inputs[i:i+max_len]
def _assert_output(actual, expected):
if len(actual) != len(expected):
logging.error('Unexpected output length {0} (expected {1})'.format(len(actual), len(expected)))
return False
if actual != expected:
logging.error('Expected output:\n' + '\n'.join(expected))
return False
return True
class _TestExitCode:
SUCCESS, FAILURE, ERROR, SKIPPED = range(4)
class _TestVectorsFile:
def __init__(self, path, archive):
self._archive = archive
self._path = path
self._fn = os.path.split(path)[1]
self._valid = False
self._parse()
def valid(self):
return self._valid
def algorithm(self):
return self._algo
def mode(self):
return self._mode
def parse(self):
self._parser = configparser.ConfigParser(dict_type=_MultiOrderedDict,
strict=False,
interpolation=None,
empty_lines_in_values=False)
self._parser.read_string(self._archive.read(self._path).decode('utf-8'))
def _extract_test_data(self, section):
keys = self._parser.get(section, 'key')
plaintexts = self._parser.get(section, 'plaintext')
ciphertexts = self._parser.get(section, 'ciphertext')
init_vectors = None
if toolkit.mode_requires_init_vector(self.mode()):
init_vectors = self._parser.get(section, 'iv')
return keys, plaintexts, ciphertexts, init_vectors
def _run_tests(self, tool, inputs, expected_output):
try:
for expected_output_chunk, input_chunk in _split_into_chunks(expected_output, list(inputs)):
actual_output = tool(self.algorithm(), self.mode(), input_chunk)
if not _assert_output(actual_output, expected_output_chunk):
return _TestExitCode.FAILURE
return _TestExitCode.SUCCESS
except toolkit.ToolkitError as e:
logging.error('Encountered an exception, skipping...')
logging.exception(e)
return _TestExitCode.ERROR
def run_encryption_tests(self, tools):
logging.info('Running encryption tests...')
keys, plaintexts, ciphertexts, init_vectors = self._extract_test_data('ENCRYPT')
inputs = _gen_encryption_inputs(keys, plaintexts, init_vectors)
return self._run_tests(tools.run_encrypt_block, inputs, ciphertexts)
def run_decryption_tests(self, tools):
logging.info('Running decryption tests...')
keys, plaintexts, ciphertexts, init_vectors = self._extract_test_data('DECRYPT')
inputs = _gen_decryption_inputs(keys, ciphertexts, init_vectors)
return self._run_tests(tools.run_decrypt_block, inputs, plaintexts)
def _parse(self):
logging.info('Trying to parse test vectors file name \'{0}\'...'.format(self._fn))
stub = self._strip_extension(self._fn)
if not stub: return
stub = self._strip_algorithm(stub)
if not stub: return
stub = self._strip_method(stub)
if not stub: return
stub = self._strip_mode(stub)
if not stub: return
self._valid = True
def _strip_extension(self, stub):
stub, ext = os.path.splitext(stub)
if ext != '.rsp':
logging.warn('Unknown test vectors file extension \'{0}\'!'.format(self._fn))
return None
return stub
def _strip_algorithm(self, stub):
algo_size = stub[-3:]
maybe_algo = 'aes{0}'.format(algo_size)
self._algo = toolkit.to_supported_algorithm(maybe_algo)
if self._algo:
logging.info('\tAlgorithm: {0}'.format(self._algo))
return stub[0:-3]
else:
logging.warn('Unknown or unsupported algorithm \'{0}\''.format(self._fn))
return None
def _strip_method(self, stub):
for method in ('GFSbox', 'KeySbox', 'VarKey', 'VarTxt'):
if stub.endswith(method):
logging.info('\tMethod: {0}'.format(method))
return stub[0:len(stub) - len(method)]
logging.warn('Unknown or unsupported method \'{0}\''.format(self._fn))
def _strip_mode(self, stub):
self._mode = toolkit.to_supported_mode(stub)
if self._mode:
logging.info('\tMode: {0}'.format(self._mode))
return self._mode
else:
logging.warn('Unknown or unsupported mode \'{0}\''.format(self._fn))
return None
def _parse_test_vectors_archive(tools, archive_path='KAT_AES.zip'):
archive = zipfile.ZipFile(archive_path)
exit_codes = []
for fn in archive.namelist():
member = _TestVectorsFile(fn, archive)
if member.valid():
member.parse()
exit_codes.append(member.run_encryption_tests(tools))
exit_codes.append(member.run_decryption_tests(tools))
else:
exit_codes.append(_TestExitCode.SKIPPED)
logging.info('Test exit codes:')
logging.info('\tSkipped: {0}'.format(exit_codes.count(_TestExitCode.SKIPPED)))
logging.info('\tError(s): {0}'.format(exit_codes.count(_TestExitCode.ERROR)))
logging.info('\tSucceeded: {0}'.format(exit_codes.count(_TestExitCode.SUCCESS)))
logging.info('\tFailed: {0}'.format(exit_codes.count(_TestExitCode.FAILURE)))
if (exit_codes.count(_TestExitCode.ERROR) == 0 and
exit_codes.count(_TestExitCode.FAILURE) == 0):
sys.exit()
else:
sys.exit(1)
if __name__ == '__main__':
import argparse
parser = argparse.ArgumentParser()
parser.add_argument('--path', '-p', nargs='*',
help='set path to block encryption utilities')
parser.add_argument('--sde', '-e', action='store_true',
help='use Intel SDE to run *.exe files')
parser.add_argument('--log', '-l', help='set log file path')
args = parser.parse_args()
logging_options = {'format': '%(asctime)s | %(module)s | %(levelname)s | %(message)s',
'level': logging.DEBUG}
if args.log is None:
logging_options['filename'] = datetime.now().strftime('cavp_%Y-%m-%d_%H-%M-%S.log')
else:
logging_options['filename'] = args.log
logging.basicConfig(**logging_options)
tools = toolkit.Tools(args.path, use_sde=args.sde)
_parse_test_vectors_archive(tools)
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