You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
49 lines
1.7 KiB
49 lines
1.7 KiB
#-----------------------------------------------------------------------------
|
|
# Copyright (c) 2005-2023, PyInstaller Development Team.
|
|
#
|
|
# Distributed under the terms of the GNU General Public License (version 2
|
|
# or later) with exception for distributing the bootloader.
|
|
#
|
|
# The full license is in the file COPYING.txt, distributed with this software.
|
|
#
|
|
# SPDX-License-Identifier: (GPL-2.0-or-later WITH Bootloader-exception)
|
|
#-----------------------------------------------------------------------------
|
|
|
|
import os
|
|
|
|
from PyInstaller import log as logging
|
|
|
|
BLOCK_SIZE = 16
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
class PyiBlockCipher:
|
|
"""
|
|
This class is used only to encrypt Python modules.
|
|
"""
|
|
def __init__(self, key=None):
|
|
logger.log(
|
|
logging.DEPRECATION,
|
|
"Bytecode encryption will be removed in PyInstaller v6. Please remove cipher and block_cipher parameters "
|
|
"from your spec file to avoid breakages on upgrade. For the rationale/alternatives see "
|
|
"https://github.com/pyinstaller/pyinstaller/pull/6999"
|
|
)
|
|
assert type(key) is str
|
|
if len(key) > BLOCK_SIZE:
|
|
self.key = key[0:BLOCK_SIZE]
|
|
else:
|
|
self.key = key.zfill(BLOCK_SIZE)
|
|
assert len(self.key) == BLOCK_SIZE
|
|
|
|
import tinyaes
|
|
self._aesmod = tinyaes
|
|
|
|
def encrypt(self, data):
|
|
iv = os.urandom(BLOCK_SIZE)
|
|
return iv + self.__create_cipher(iv).CTR_xcrypt_buffer(data)
|
|
|
|
def __create_cipher(self, iv):
|
|
# The 'AES' class is stateful, and this factory method is used to re-initialize the block cipher class with
|
|
# each call to xcrypt().
|
|
return self._aesmod.AES(self.key.encode(), iv)
|