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# PyCharm stuff
.idea/
# Byte-compiled / optimized / DLL files
__pycache__/
*.py[cod]
*$py.class
# C extensions
*.so
# Distribution / packaging
.Python
build/
develop-eggs/
dist/
downloads/
eggs/
.eggs/
lib/
lib64/
parts/
sdist/
var/
wheels/
*.egg-info/
.installed.cfg
*.egg
MANIFEST
# PyInstaller
# Usually these files are written by a python script from a template
# before PyInstaller builds the exe, so as to inject date/other infos into it.
*.manifest
*.spec
# Installer logs
pip-log.txt
pip-delete-this-directory.txt
# Unit test / coverage reports
htmlcov/
.tox/
.coverage
.coverage.*
.cache
nosetests.xml
coverage.xml
*.cover
.hypothesis/
# Translations
*.mo
*.pot
# Django stuff:
*.log
.static_storage/
.media/
local_settings.py
# Flask stuff:
instance/
.webassets-cache
# Scrapy stuff:
.scrapy
# Sphinx documentation
docs/_build/
# PyBuilder
target/
# Jupyter Notebook
.ipynb_checkpoints
# pyenv
.python-version
# celery beat schedule file
celerybeat-schedule
# SageMath parsed files
*.sage.py
# Environments
.env
.venv
env/
venv/
ENV/
env.bak/
venv.bak/
# Spyder project settings
.spyderproject
.spyproject
# Rope project settings
.ropeproject
# mkdocs documentation
/site
# mypy
.mypy_cache/

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Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<https://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
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<https://www.gnu.org/licenses/why-not-lgpl.html>.

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GNU LESSER GENERAL PUBLIC LICENSE
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Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
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## Include
include COPYING COPYING.lesser NOTICE
recursive-include tgcrypto *.c *.h

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Pyrogram - Telegram MTProto API Client Library for Python
Copyright (C) 2017-2018 Dan Tès <https://github.com/delivrance>
This file is part of Pyrogram.
Pyrogram is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Pyrogram 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with Pyrogram. If not, see <http://www.gnu.org/licenses/>.

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TgCrypto
========
Telegram Crypto for `Pyrogram <https://github.com/pyrogram/pyrogram>`_

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# Pyrogram - Telegram MTProto API Client Library for Python
# Copyright (C) 2017-2018 Dan Tès <https://github.com/delivrance>
#
# This file is part of Pyrogram.
#
# Pyrogram is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Pyrogram 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Pyrogram. If not, see <http://www.gnu.org/licenses/>.
from setuptools import setup, Extension, find_packages
with open("README.rst", encoding="utf-8") as f:
readme = f.read()
setup(
name="TgCrypto",
version="0.0.1b1",
description="Telegram Crypto for Pyrogram",
url="https://github.com/pyrogram/tgcrypto",
author="Dan Tès",
author_email="admin@pyrogram.ml",
license="LGPLv3+",
keywords="pyrogram telegram crypto mtproto api client library python",
long_description=readme,
classifiers=[
"Development Status :: 3 - Alpha",
"Intended Audience :: Developers",
"License :: OSI Approved :: GNU Lesser General Public License v3 or later (LGPLv3+)",
"Operating System :: OS Independent",
"Programming Language :: C",
"Topic :: Security",
"Topic :: Security :: Cryptography",
"Topic :: Internet",
"Topic :: Communications :: Chat",
"Topic :: Software Development :: Libraries",
"Topic :: Software Development :: Libraries :: Python Modules"
],
packages=find_packages(),
zip_safe=False,
ext_modules=[
Extension(
"tgcrypto",
sources=[
"tgcrypto/tgcrypto.c",
"tgcrypto/aes256.c",
"tgcrypto/ige256.c",
"tgcrypto/ctr256.c"
]
)
]
)

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// Pyrogram - Telegram MTProto API Client Library for Python
// Copyright (C) 2017-2018 Dan Tès <https://github.com/delivrance>
//
// This file is part of Pyrogram.
//
// Pyrogram is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Pyrogram 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with Pyrogram. If not, see <http://www.gnu.org/licenses/>.
#include "aes256.h"
static const uint8_t SBOX[16][16] = {
{0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76},
{0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0},
{0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15},
{0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75},
{0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84},
{0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf},
{0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8},
{0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2},
{0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73},
{0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb},
{0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79},
{0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08},
{0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a},
{0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e},
{0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf},
{0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16}
};
static const uint8_t INV_SBOX[16][16] = {
{0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb},
{0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb},
{0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e},
{0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25},
{0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92},
{0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84},
{0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06},
{0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b},
{0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73},
{0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e},
{0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b},
{0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4},
{0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f},
{0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef},
{0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61},
{0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d}
};
static const uint8_t GF_MUL[256][6] = {
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
{0x02, 0x03, 0x09, 0x0b, 0x0d, 0x0e},
{0x04, 0x06, 0x12, 0x16, 0x1a, 0x1c},
{0x06, 0x05, 0x1b, 0x1d, 0x17, 0x12},
{0x08, 0x0c, 0x24, 0x2c, 0x34, 0x38},
{0x0a, 0x0f, 0x2d, 0x27, 0x39, 0x36},
{0x0c, 0x0a, 0x36, 0x3a, 0x2e, 0x24},
{0x0e, 0x09, 0x3f, 0x31, 0x23, 0x2a},
{0x10, 0x18, 0x48, 0x58, 0x68, 0x70},
{0x12, 0x1b, 0x41, 0x53, 0x65, 0x7e},
{0x14, 0x1e, 0x5a, 0x4e, 0x72, 0x6c},
{0x16, 0x1d, 0x53, 0x45, 0x7f, 0x62},
{0x18, 0x14, 0x6c, 0x74, 0x5c, 0x48},
{0x1a, 0x17, 0x65, 0x7f, 0x51, 0x46},
{0x1c, 0x12, 0x7e, 0x62, 0x46, 0x54},
{0x1e, 0x11, 0x77, 0x69, 0x4b, 0x5a},
{0x20, 0x30, 0x90, 0xb0, 0xd0, 0xe0},
{0x22, 0x33, 0x99, 0xbb, 0xdd, 0xee},
{0x24, 0x36, 0x82, 0xa6, 0xca, 0xfc},
{0x26, 0x35, 0x8b, 0xad, 0xc7, 0xf2},
{0x28, 0x3c, 0xb4, 0x9c, 0xe4, 0xd8},
{0x2a, 0x3f, 0xbd, 0x97, 0xe9, 0xd6},
{0x2c, 0x3a, 0xa6, 0x8a, 0xfe, 0xc4},
{0x2e, 0x39, 0xaf, 0x81, 0xf3, 0xca},
{0x30, 0x28, 0xd8, 0xe8, 0xb8, 0x90},
{0x32, 0x2b, 0xd1, 0xe3, 0xb5, 0x9e},
{0x34, 0x2e, 0xca, 0xfe, 0xa2, 0x8c},
{0x36, 0x2d, 0xc3, 0xf5, 0xaf, 0x82},
{0x38, 0x24, 0xfc, 0xc4, 0x8c, 0xa8},
{0x3a, 0x27, 0xf5, 0xcf, 0x81, 0xa6},
{0x3c, 0x22, 0xee, 0xd2, 0x96, 0xb4},
{0x3e, 0x21, 0xe7, 0xd9, 0x9b, 0xba},
{0x40, 0x60, 0x3b, 0x7b, 0xbb, 0xdb},
{0x42, 0x63, 0x32, 0x70, 0xb6, 0xd5},
{0x44, 0x66, 0x29, 0x6d, 0xa1, 0xc7},
{0x46, 0x65, 0x20, 0x66, 0xac, 0xc9},
{0x48, 0x6c, 0x1f, 0x57, 0x8f, 0xe3},
{0x4a, 0x6f, 0x16, 0x5c, 0x82, 0xed},
{0x4c, 0x6a, 0x0d, 0x41, 0x95, 0xff},
{0x4e, 0x69, 0x04, 0x4a, 0x98, 0xf1},
{0x50, 0x78, 0x73, 0x23, 0xd3, 0xab},
{0x52, 0x7b, 0x7a, 0x28, 0xde, 0xa5},
{0x54, 0x7e, 0x61, 0x35, 0xc9, 0xb7},
{0x56, 0x7d, 0x68, 0x3e, 0xc4, 0xb9},
{0x58, 0x74, 0x57, 0x0f, 0xe7, 0x93},
{0x5a, 0x77, 0x5e, 0x04, 0xea, 0x9d},
{0x5c, 0x72, 0x45, 0x19, 0xfd, 0x8f},
{0x5e, 0x71, 0x4c, 0x12, 0xf0, 0x81},
{0x60, 0x50, 0xab, 0xcb, 0x6b, 0x3b},
{0x62, 0x53, 0xa2, 0xc0, 0x66, 0x35},
{0x64, 0x56, 0xb9, 0xdd, 0x71, 0x27},
{0x66, 0x55, 0xb0, 0xd6, 0x7c, 0x29},
{0x68, 0x5c, 0x8f, 0xe7, 0x5f, 0x03},
{0x6a, 0x5f, 0x86, 0xec, 0x52, 0x0d},
{0x6c, 0x5a, 0x9d, 0xf1, 0x45, 0x1f},
{0x6e, 0x59, 0x94, 0xfa, 0x48, 0x11},
{0x70, 0x48, 0xe3, 0x93, 0x03, 0x4b},
{0x72, 0x4b, 0xea, 0x98, 0x0e, 0x45},
{0x74, 0x4e, 0xf1, 0x85, 0x19, 0x57},
{0x76, 0x4d, 0xf8, 0x8e, 0x14, 0x59},
{0x78, 0x44, 0xc7, 0xbf, 0x37, 0x73},
{0x7a, 0x47, 0xce, 0xb4, 0x3a, 0x7d},
{0x7c, 0x42, 0xd5, 0xa9, 0x2d, 0x6f},
{0x7e, 0x41, 0xdc, 0xa2, 0x20, 0x61},
{0x80, 0xc0, 0x76, 0xf6, 0x6d, 0xad},
{0x82, 0xc3, 0x7f, 0xfd, 0x60, 0xa3},
{0x84, 0xc6, 0x64, 0xe0, 0x77, 0xb1},
{0x86, 0xc5, 0x6d, 0xeb, 0x7a, 0xbf},
{0x88, 0xcc, 0x52, 0xda, 0x59, 0x95},
{0x8a, 0xcf, 0x5b, 0xd1, 0x54, 0x9b},
{0x8c, 0xca, 0x40, 0xcc, 0x43, 0x89},
{0x8e, 0xc9, 0x49, 0xc7, 0x4e, 0x87},
{0x90, 0xd8, 0x3e, 0xae, 0x05, 0xdd},
{0x92, 0xdb, 0x37, 0xa5, 0x08, 0xd3},
{0x94, 0xde, 0x2c, 0xb8, 0x1f, 0xc1},
{0x96, 0xdd, 0x25, 0xb3, 0x12, 0xcf},
{0x98, 0xd4, 0x1a, 0x82, 0x31, 0xe5},
{0x9a, 0xd7, 0x13, 0x89, 0x3c, 0xeb},
{0x9c, 0xd2, 0x08, 0x94, 0x2b, 0xf9},
{0x9e, 0xd1, 0x01, 0x9f, 0x26, 0xf7},
{0xa0, 0xf0, 0xe6, 0x46, 0xbd, 0x4d},
{0xa2, 0xf3, 0xef, 0x4d, 0xb0, 0x43},
{0xa4, 0xf6, 0xf4, 0x50, 0xa7, 0x51},
{0xa6, 0xf5, 0xfd, 0x5b, 0xaa, 0x5f},
{0xa8, 0xfc, 0xc2, 0x6a, 0x89, 0x75},
{0xaa, 0xff, 0xcb, 0x61, 0x84, 0x7b},
{0xac, 0xfa, 0xd0, 0x7c, 0x93, 0x69},
{0xae, 0xf9, 0xd9, 0x77, 0x9e, 0x67},
{0xb0, 0xe8, 0xae, 0x1e, 0xd5, 0x3d},
{0xb2, 0xeb, 0xa7, 0x15, 0xd8, 0x33},
{0xb4, 0xee, 0xbc, 0x08, 0xcf, 0x21},
{0xb6, 0xed, 0xb5, 0x03, 0xc2, 0x2f},
{0xb8, 0xe4, 0x8a, 0x32, 0xe1, 0x05},
{0xba, 0xe7, 0x83, 0x39, 0xec, 0x0b},
{0xbc, 0xe2, 0x98, 0x24, 0xfb, 0x19},
{0xbe, 0xe1, 0x91, 0x2f, 0xf6, 0x17},
{0xc0, 0xa0, 0x4d, 0x8d, 0xd6, 0x76},
{0xc2, 0xa3, 0x44, 0x86, 0xdb, 0x78},
{0xc4, 0xa6, 0x5f, 0x9b, 0xcc, 0x6a},
{0xc6, 0xa5, 0x56, 0x90, 0xc1, 0x64},
{0xc8, 0xac, 0x69, 0xa1, 0xe2, 0x4e},
{0xca, 0xaf, 0x60, 0xaa, 0xef, 0x40},
{0xcc, 0xaa, 0x7b, 0xb7, 0xf8, 0x52},
{0xce, 0xa9, 0x72, 0xbc, 0xf5, 0x5c},
{0xd0, 0xb8, 0x05, 0xd5, 0xbe, 0x06},
{0xd2, 0xbb, 0x0c, 0xde, 0xb3, 0x08},
{0xd4, 0xbe, 0x17, 0xc3, 0xa4, 0x1a},
{0xd6, 0xbd, 0x1e, 0xc8, 0xa9, 0x14},
{0xd8, 0xb4, 0x21, 0xf9, 0x8a, 0x3e},
{0xda, 0xb7, 0x28, 0xf2, 0x87, 0x30},
{0xdc, 0xb2, 0x33, 0xef, 0x90, 0x22},
{0xde, 0xb1, 0x3a, 0xe4, 0x9d, 0x2c},
{0xe0, 0x90, 0xdd, 0x3d, 0x06, 0x96},
{0xe2, 0x93, 0xd4, 0x36, 0x0b, 0x98},
{0xe4, 0x96, 0xcf, 0x2b, 0x1c, 0x8a},
{0xe6, 0x95, 0xc6, 0x20, 0x11, 0x84},
{0xe8, 0x9c, 0xf9, 0x11, 0x32, 0xae},
{0xea, 0x9f, 0xf0, 0x1a, 0x3f, 0xa0},
{0xec, 0x9a, 0xeb, 0x07, 0x28, 0xb2},
{0xee, 0x99, 0xe2, 0x0c, 0x25, 0xbc},
{0xf0, 0x88, 0x95, 0x65, 0x6e, 0xe6},
{0xf2, 0x8b, 0x9c, 0x6e, 0x63, 0xe8},
{0xf4, 0x8e, 0x87, 0x73, 0x74, 0xfa},
{0xf6, 0x8d, 0x8e, 0x78, 0x79, 0xf4},
{0xf8, 0x84, 0xb1, 0x49, 0x5a, 0xde},
{0xfa, 0x87, 0xb8, 0x42, 0x57, 0xd0},
{0xfc, 0x82, 0xa3, 0x5f, 0x40, 0xc2},
{0xfe, 0x81, 0xaa, 0x54, 0x4d, 0xcc},
{0x1b, 0x9b, 0xec, 0xf7, 0xda, 0x41},
{0x19, 0x98, 0xe5, 0xfc, 0xd7, 0x4f},
{0x1f, 0x9d, 0xfe, 0xe1, 0xc0, 0x5d},
{0x1d, 0x9e, 0xf7, 0xea, 0xcd, 0x53},
{0x13, 0x97, 0xc8, 0xdb, 0xee, 0x79},
{0x11, 0x94, 0xc1, 0xd0, 0xe3, 0x77},
{0x17, 0x91, 0xda, 0xcd, 0xf4, 0x65},
{0x15, 0x92, 0xd3, 0xc6, 0xf9, 0x6b},
{0x0b, 0x83, 0xa4, 0xaf, 0xb2, 0x31},
{0x09, 0x80, 0xad, 0xa4, 0xbf, 0x3f},
{0x0f, 0x85, 0xb6, 0xb9, 0xa8, 0x2d},
{0x0d, 0x86, 0xbf, 0xb2, 0xa5, 0x23},
{0x03, 0x8f, 0x80, 0x83, 0x86, 0x09},
{0x01, 0x8c, 0x89, 0x88, 0x8b, 0x07},
{0x07, 0x89, 0x92, 0x95, 0x9c, 0x15},
{0x05, 0x8a, 0x9b, 0x9e, 0x91, 0x1b},
{0x3b, 0xab, 0x7c, 0x47, 0x0a, 0xa1},
{0x39, 0xa8, 0x75, 0x4c, 0x07, 0xaf},
{0x3f, 0xad, 0x6e, 0x51, 0x10, 0xbd},
{0x3d, 0xae, 0x67, 0x5a, 0x1d, 0xb3},
{0x33, 0xa7, 0x58, 0x6b, 0x3e, 0x99},
{0x31, 0xa4, 0x51, 0x60, 0x33, 0x97},
{0x37, 0xa1, 0x4a, 0x7d, 0x24, 0x85},
{0x35, 0xa2, 0x43, 0x76, 0x29, 0x8b},
{0x2b, 0xb3, 0x34, 0x1f, 0x62, 0xd1},
{0x29, 0xb0, 0x3d, 0x14, 0x6f, 0xdf},
{0x2f, 0xb5, 0x26, 0x09, 0x78, 0xcd},
{0x2d, 0xb6, 0x2f, 0x02, 0x75, 0xc3},
{0x23, 0xbf, 0x10, 0x33, 0x56, 0xe9},
{0x21, 0xbc, 0x19, 0x38, 0x5b, 0xe7},
{0x27, 0xb9, 0x02, 0x25, 0x4c, 0xf5},
{0x25, 0xba, 0x0b, 0x2e, 0x41, 0xfb},
{0x5b, 0xfb, 0xd7, 0x8c, 0x61, 0x9a},
{0x59, 0xf8, 0xde, 0x87, 0x6c, 0x94},
{0x5f, 0xfd, 0xc5, 0x9a, 0x7b, 0x86},
{0x5d, 0xfe, 0xcc, 0x91, 0x76, 0x88},
{0x53, 0xf7, 0xf3, 0xa0, 0x55, 0xa2},
{0x51, 0xf4, 0xfa, 0xab, 0x58, 0xac},
{0x57, 0xf1, 0xe1, 0xb6, 0x4f, 0xbe},
{0x55, 0xf2, 0xe8, 0xbd, 0x42, 0xb0},
{0x4b, 0xe3, 0x9f, 0xd4, 0x09, 0xea},
{0x49, 0xe0, 0x96, 0xdf, 0x04, 0xe4},
{0x4f, 0xe5, 0x8d, 0xc2, 0x13, 0xf6},
{0x4d, 0xe6, 0x84, 0xc9, 0x1e, 0xf8},
{0x43, 0xef, 0xbb, 0xf8, 0x3d, 0xd2},
{0x41, 0xec, 0xb2, 0xf3, 0x30, 0xdc},
{0x47, 0xe9, 0xa9, 0xee, 0x27, 0xce},
{0x45, 0xea, 0xa0, 0xe5, 0x2a, 0xc0},
{0x7b, 0xcb, 0x47, 0x3c, 0xb1, 0x7a},
{0x79, 0xc8, 0x4e, 0x37, 0xbc, 0x74},
{0x7f, 0xcd, 0x55, 0x2a, 0xab, 0x66},
{0x7d, 0xce, 0x5c, 0x21, 0xa6, 0x68},
{0x73, 0xc7, 0x63, 0x10, 0x85, 0x42},
{0x71, 0xc4, 0x6a, 0x1b, 0x88, 0x4c},
{0x77, 0xc1, 0x71, 0x06, 0x9f, 0x5e},
{0x75, 0xc2, 0x78, 0x0d, 0x92, 0x50},
{0x6b, 0xd3, 0x0f, 0x64, 0xd9, 0x0a},
{0x69, 0xd0, 0x06, 0x6f, 0xd4, 0x04},
{0x6f, 0xd5, 0x1d, 0x72, 0xc3, 0x16},
{0x6d, 0xd6, 0x14, 0x79, 0xce, 0x18},
{0x63, 0xdf, 0x2b, 0x48, 0xed, 0x32},
{0x61, 0xdc, 0x22, 0x43, 0xe0, 0x3c},
{0x67, 0xd9, 0x39, 0x5e, 0xf7, 0x2e},
{0x65, 0xda, 0x30, 0x55, 0xfa, 0x20},
{0x9b, 0x5b, 0x9a, 0x01, 0xb7, 0xec},
{0x99, 0x58, 0x93, 0x0a, 0xba, 0xe2},
{0x9f, 0x5d, 0x88, 0x17, 0xad, 0xf0},
{0x9d, 0x5e, 0x81, 0x1c, 0xa0, 0xfe},
{0x93, 0x57, 0xbe, 0x2d, 0x83, 0xd4},
{0x91, 0x54, 0xb7, 0x26, 0x8e, 0xda},
{0x97, 0x51, 0xac, 0x3b, 0x99, 0xc8},
{0x95, 0x52, 0xa5, 0x30, 0x94, 0xc6},
{0x8b, 0x43, 0xd2, 0x59, 0xdf, 0x9c},
{0x89, 0x40, 0xdb, 0x52, 0xd2, 0x92},
{0x8f, 0x45, 0xc0, 0x4f, 0xc5, 0x80},
{0x8d, 0x46, 0xc9, 0x44, 0xc8, 0x8e},
{0x83, 0x4f, 0xf6, 0x75, 0xeb, 0xa4},
{0x81, 0x4c, 0xff, 0x7e, 0xe6, 0xaa},
{0x87, 0x49, 0xe4, 0x63, 0xf1, 0xb8},
{0x85, 0x4a, 0xed, 0x68, 0xfc, 0xb6},
{0xbb, 0x6b, 0x0a, 0xb1, 0x67, 0x0c},
{0xb9, 0x68, 0x03, 0xba, 0x6a, 0x02},
{0xbf, 0x6d, 0x18, 0xa7, 0x7d, 0x10},
{0xbd, 0x6e, 0x11, 0xac, 0x70, 0x1e},
{0xb3, 0x67, 0x2e, 0x9d, 0x53, 0x34},
{0xb1, 0x64, 0x27, 0x96, 0x5e, 0x3a},
{0xb7, 0x61, 0x3c, 0x8b, 0x49, 0x28},
{0xb5, 0x62, 0x35, 0x80, 0x44, 0x26},
{0xab, 0x73, 0x42, 0xe9, 0x0f, 0x7c},
{0xa9, 0x70, 0x4b, 0xe2, 0x02, 0x72},
{0xaf, 0x75, 0x50, 0xff, 0x15, 0x60},
{0xad, 0x76, 0x59, 0xf4, 0x18, 0x6e},
{0xa3, 0x7f, 0x66, 0xc5, 0x3b, 0x44},
{0xa1, 0x7c, 0x6f, 0xce, 0x36, 0x4a},
{0xa7, 0x79, 0x74, 0xd3, 0x21, 0x58},
{0xa5, 0x7a, 0x7d, 0xd8, 0x2c, 0x56},
{0xdb, 0x3b, 0xa1, 0x7a, 0x0c, 0x37},
{0xd9, 0x38, 0xa8, 0x71, 0x01, 0x39},
{0xdf, 0x3d, 0xb3, 0x6c, 0x16, 0x2b},
{0xdd, 0x3e, 0xba, 0x67, 0x1b, 0x25},
{0xd3, 0x37, 0x85, 0x56, 0x38, 0x0f},
{0xd1, 0x34, 0x8c, 0x5d, 0x35, 0x01},
{0xd7, 0x31, 0x97, 0x40, 0x22, 0x13},
{0xd5, 0x32, 0x9e, 0x4b, 0x2f, 0x1d},
{0xcb, 0x23, 0xe9, 0x22, 0x64, 0x47},
{0xc9, 0x20, 0xe0, 0x29, 0x69, 0x49},
{0xcf, 0x25, 0xfb, 0x34, 0x7e, 0x5b},
{0xcd, 0x26, 0xf2, 0x3f, 0x73, 0x55},
{0xc3, 0x2f, 0xcd, 0x0e, 0x50, 0x7f},
{0xc1, 0x2c, 0xc4, 0x05, 0x5d, 0x71},
{0xc7, 0x29, 0xdf, 0x18, 0x4a, 0x63},
{0xc5, 0x2a, 0xd6, 0x13, 0x47, 0x6d},
{0xfb, 0x0b, 0x31, 0xca, 0xdc, 0xd7},
{0xf9, 0x08, 0x38, 0xc1, 0xd1, 0xd9},
{0xff, 0x0d, 0x23, 0xdc, 0xc6, 0xcb},
{0xfd, 0x0e, 0x2a, 0xd7, 0xcb, 0xc5},
{0xf3, 0x07, 0x15, 0xe6, 0xe8, 0xef},
{0xf1, 0x04, 0x1c, 0xed, 0xe5, 0xe1},
{0xf7, 0x01, 0x07, 0xf0, 0xf2, 0xf3},
{0xf5, 0x02, 0x0e, 0xfb, 0xff, 0xfd},
{0xeb, 0x13, 0x79, 0x92, 0xb4, 0xa7},
{0xe9, 0x10, 0x70, 0x99, 0xb9, 0xa9},
{0xef, 0x15, 0x6b, 0x84, 0xae, 0xbb},
{0xed, 0x16, 0x62, 0x8f, 0xa3, 0xb5},
{0xe3, 0x1f, 0x5d, 0xbe, 0x80, 0x9f},
{0xe1, 0x1c, 0x54, 0xb5, 0x8d, 0x91},
{0xe7, 0x19, 0x4f, 0xa8, 0x9a, 0x83},
{0xe5, 0x1a, 0x46, 0xa3, 0x97, 0x8d}
};
static const uint32_t RCON[10] = {
0x01000000, 0x02000000, 0x04000000, 0x08000000, 0x10000000,
0x20000000, 0x40000000, 0x80000000, 0x1b000000, 0x36000000
};
uint32_t sub_word(uint32_t w) {
return (
(SBOX[w >> 4 & 0x0f][w & 0xf])
+ (SBOX[w >> 12 & 0x0f][w >> 8 & 0x0f] << 8)
+ (SBOX[w >> 20 & 0x0f][w >> 16 & 0x0f] << 16)
+ (SBOX[w >> 28 & 0x0f][w >> 24 & 0x0f] << 24)
);
}
void aes256_key_expansion(const uint8_t *key, uint32_t w[60]) {
uint32_t Nb = 4, Nr = 14, Nk = 8, i, tmp;
for (i = 0; i < Nk; ++i)
w[i] = (
key[4 * i] << 24
| key[4 * i + 1] << 16
| key[4 * i + 2] << 8
| key[4 * i + 3]
);
for (i = Nk; i < Nb * (Nr + 1); ++i) {
tmp = w[i - 1];
if (i % Nk == 0)
tmp = sub_word(tmp << 8 | tmp >> 24) ^ RCON[(i - 1) / Nk];
else if (Nk > 6 && i % Nk == 4)
tmp = sub_word(tmp);
w[i] = w[i - Nk] ^ tmp;
}
}
void add_round_key(uint8_t state[4][4], const uint32_t w[60]) {
uint8_t subKey[4];
subKey[0] = w[0] >> 24;
subKey[1] = w[0] >> 16;
subKey[2] = w[0] >> 8;
subKey[3] = w[0];
state[0][0] ^= subKey[0];
state[1][0] ^= subKey[1];
state[2][0] ^= subKey[2];
state[3][0] ^= subKey[3];
subKey[0] = w[1] >> 24;
subKey[1] = w[1] >> 16;
subKey[2] = w[1] >> 8;
subKey[3] = w[1];
state[0][1] ^= subKey[0];
state[1][1] ^= subKey[1];
state[2][1] ^= subKey[2];
state[3][1] ^= subKey[3];
subKey[0] = w[2] >> 24;
subKey[1] = w[2] >> 16;
subKey[2] = w[2] >> 8;
subKey[3] = w[2];
state[0][2] ^= subKey[0];
state[1][2] ^= subKey[1];
state[2][2] ^= subKey[2];
state[3][2] ^= subKey[3];
subKey[0] = w[3] >> 24;
subKey[1] = w[3] >> 16;
subKey[2] = w[3] >> 8;
subKey[3] = w[3];
state[0][3] ^= subKey[0];
state[1][3] ^= subKey[1];
state[2][3] ^= subKey[2];
state[3][3] ^= subKey[3];
}
void sub_bytes(uint8_t state[4][4]) {
state[0][0] = SBOX[state[0][0] >> 4][state[0][0] & 0x0f];
state[0][1] = SBOX[state[0][1] >> 4][state[0][1] & 0x0f];
state[0][2] = SBOX[state[0][2] >> 4][state[0][2] & 0x0f];
state[0][3] = SBOX[state[0][3] >> 4][state[0][3] & 0x0f];
state[1][0] = SBOX[state[1][0] >> 4][state[1][0] & 0x0f];
state[1][1] = SBOX[state[1][1] >> 4][state[1][1] & 0x0f];
state[1][2] = SBOX[state[1][2] >> 4][state[1][2] & 0x0f];
state[1][3] = SBOX[state[1][3] >> 4][state[1][3] & 0x0f];
state[2][0] = SBOX[state[2][0] >> 4][state[2][0] & 0x0f];
state[2][1] = SBOX[state[2][1] >> 4][state[2][1] & 0x0f];
state[2][2] = SBOX[state[2][2] >> 4][state[2][2] & 0x0f];
state[2][3] = SBOX[state[2][3] >> 4][state[2][3] & 0x0f];
state[3][0] = SBOX[state[3][0] >> 4][state[3][0] & 0x0f];
state[3][1] = SBOX[state[3][1] >> 4][state[3][1] & 0x0f];
state[3][2] = SBOX[state[3][2] >> 4][state[3][2] & 0x0f];
state[3][3] = SBOX[state[3][3] >> 4][state[3][3] & 0x0f];
}
void inv_sub_bytes(uint8_t state[4][4]) {
state[0][0] = INV_SBOX[state[0][0] >> 4][state[0][0] & 0x0f];
state[0][1] = INV_SBOX[state[0][1] >> 4][state[0][1] & 0x0f];
state[0][2] = INV_SBOX[state[0][2] >> 4][state[0][2] & 0x0f];
state[0][3] = INV_SBOX[state[0][3] >> 4][state[0][3] & 0x0f];
state[1][0] = INV_SBOX[state[1][0] >> 4][state[1][0] & 0x0f];
state[1][1] = INV_SBOX[state[1][1] >> 4][state[1][1] & 0x0f];
state[1][2] = INV_SBOX[state[1][2] >> 4][state[1][2] & 0x0f];
state[1][3] = INV_SBOX[state[1][3] >> 4][state[1][3] & 0x0f];
state[2][0] = INV_SBOX[state[2][0] >> 4][state[2][0] & 0x0f];
state[2][1] = INV_SBOX[state[2][1] >> 4][state[2][1] & 0x0f];
state[2][2] = INV_SBOX[state[2][2] >> 4][state[2][2] & 0x0f];
state[2][3] = INV_SBOX[state[2][3] >> 4][state[2][3] & 0x0f];
state[3][0] = INV_SBOX[state[3][0] >> 4][state[3][0] & 0x0f];
state[3][1] = INV_SBOX[state[3][1] >> 4][state[3][1] & 0x0f];
state[3][2] = INV_SBOX[state[3][2] >> 4][state[3][2] & 0x0f];
state[3][3] = INV_SBOX[state[3][3] >> 4][state[3][3] & 0x0f];
}
void shift_rows(uint8_t state[4][4]) {
uint8_t t;
t = state[1][0];
state[1][0] = state[1][1];
state[1][1] = state[1][2];
state[1][2] = state[1][3];
state[1][3] = t;
t = state[2][0];
state[2][0] = state[2][2];
state[2][2] = t;
t = state[2][1];
state[2][1] = state[2][3];
state[2][3] = t;
t = state[3][0];
state[3][0] = state[3][3];
state[3][3] = state[3][2];
state[3][2] = state[3][1];
state[3][1] = t;
}
void inv_shift_rows(uint8_t state[4][4]) {
uint8_t t;
t = state[1][3];
state[1][3] = state[1][2];
state[1][2] = state[1][1];
state[1][1] = state[1][0];
state[1][0] = t;
t = state[2][3];
state[2][3] = state[2][1];
state[2][1] = t;
t = state[2][2];
state[2][2] = state[2][0];
state[2][0] = t;
t = state[3][3];
state[3][3] = state[3][0];
state[3][0] = state[3][1];
state[3][1] = state[3][2];
state[3][2] = t;
}
void mix_columns(uint8_t state[4][4]) {
uint8_t col[4];
col[0] = state[0][0];
col[1] = state[1][0];
col[2] = state[2][0];
col[3] = state[3][0];
state[0][0] = GF_MUL[col[0]][0];
state[0][0] ^= GF_MUL[col[1]][1];
state[0][0] ^= col[2];
state[0][0] ^= col[3];
state[1][0] = col[0];
state[1][0] ^= GF_MUL[col[1]][0];
state[1][0] ^= GF_MUL[col[2]][1];
state[1][0] ^= col[3];
state[2][0] = col[0];
state[2][0] ^= col[1];
state[2][0] ^= GF_MUL[col[2]][0];
state[2][0] ^= GF_MUL[col[3]][1];
state[3][0] = GF_MUL[col[0]][1];
state[3][0] ^= col[1];
state[3][0] ^= col[2];
state[3][0] ^= GF_MUL[col[3]][0];
col[0] = state[0][1];
col[1] = state[1][1];
col[2] = state[2][1];
col[3] = state[3][1];
state[0][1] = GF_MUL[col[0]][0];
state[0][1] ^= GF_MUL[col[1]][1];
state[0][1] ^= col[2];
state[0][1] ^= col[3];
state[1][1] = col[0];
state[1][1] ^= GF_MUL[col[1]][0];
state[1][1] ^= GF_MUL[col[2]][1];
state[1][1] ^= col[3];
state[2][1] = col[0];
state[2][1] ^= col[1];
state[2][1] ^= GF_MUL[col[2]][0];
state[2][1] ^= GF_MUL[col[3]][1];
state[3][1] = GF_MUL[col[0]][1];
state[3][1] ^= col[1];
state[3][1] ^= col[2];
state[3][1] ^= GF_MUL[col[3]][0];
col[0] = state[0][2];
col[1] = state[1][2];
col[2] = state[2][2];
col[3] = state[3][2];
state[0][2] = GF_MUL[col[0]][0];
state[0][2] ^= GF_MUL[col[1]][1];
state[0][2] ^= col[2];
state[0][2] ^= col[3];
state[1][2] = col[0];
state[1][2] ^= GF_MUL[col[1]][0];
state[1][2] ^= GF_MUL[col[2]][1];
state[1][2] ^= col[3];
state[2][2] = col[0];
state[2][2] ^= col[1];
state[2][2] ^= GF_MUL[col[2]][0];
state[2][2] ^= GF_MUL[col[3]][1];
state[3][2] = GF_MUL[col[0]][1];
state[3][2] ^= col[1];
state[3][2] ^= col[2];
state[3][2] ^= GF_MUL[col[3]][0];
col[0] = state[0][3];
col[1] = state[1][3];
col[2] = state[2][3];
col[3] = state[3][3];
state[0][3] = GF_MUL[col[0]][0];
state[0][3] ^= GF_MUL[col[1]][1];
state[0][3] ^= col[2];
state[0][3] ^= col[3];
state[1][3] = col[0];
state[1][3] ^= GF_MUL[col[1]][0];
state[1][3] ^= GF_MUL[col[2]][1];
state[1][3] ^= col[3];
state[2][3] = col[0];
state[2][3] ^= col[1];
state[2][3] ^= GF_MUL[col[2]][0];
state[2][3] ^= GF_MUL[col[3]][1];
state[3][3] = GF_MUL[col[0]][1];
state[3][3] ^= col[1];
state[3][3] ^= col[2];
state[3][3] ^= GF_MUL[col[3]][0];
}
void inv_mix_columns(uint8_t state[4][4]) {
uint8_t col[4];
col[0] = state[0][0];
col[1] = state[1][0];
col[2] = state[2][0];
col[3] = state[3][0];
state[0][0] = GF_MUL[col[0]][5];
state[0][0] ^= GF_MUL[col[1]][3];
state[0][0] ^= GF_MUL[col[2]][4];
state[0][0] ^= GF_MUL[col[3]][2];
state[1][0] = GF_MUL[col[0]][2];
state[1][0] ^= GF_MUL[col[1]][5];
state[1][0] ^= GF_MUL[col[2]][3];
state[1][0] ^= GF_MUL[col[3]][4];
state[2][0] = GF_MUL[col[0]][4];
state[2][0] ^= GF_MUL[col[1]][2];
state[2][0] ^= GF_MUL[col[2]][5];
state[2][0] ^= GF_MUL[col[3]][3];
state[3][0] = GF_MUL[col[0]][3];
state[3][0] ^= GF_MUL[col[1]][4];
state[3][0] ^= GF_MUL[col[2]][2];
state[3][0] ^= GF_MUL[col[3]][5];
col[0] = state[0][1];
col[1] = state[1][1];
col[2] = state[2][1];
col[3] = state[3][1];
state[0][1] = GF_MUL[col[0]][5];
state[0][1] ^= GF_MUL[col[1]][3];
state[0][1] ^= GF_MUL[col[2]][4];
state[0][1] ^= GF_MUL[col[3]][2];
state[1][1] = GF_MUL[col[0]][2];
state[1][1] ^= GF_MUL[col[1]][5];
state[1][1] ^= GF_MUL[col[2]][3];
state[1][1] ^= GF_MUL[col[3]][4];
state[2][1] = GF_MUL[col[0]][4];
state[2][1] ^= GF_MUL[col[1]][2];
state[2][1] ^= GF_MUL[col[2]][5];
state[2][1] ^= GF_MUL[col[3]][3];
state[3][1] = GF_MUL[col[0]][3];
state[3][1] ^= GF_MUL[col[1]][4];
state[3][1] ^= GF_MUL[col[2]][2];
state[3][1] ^= GF_MUL[col[3]][5];
col[0] = state[0][2];
col[1] = state[1][2];
col[2] = state[2][2];
col[3] = state[3][2];
state[0][2] = GF_MUL[col[0]][5];
state[0][2] ^= GF_MUL[col[1]][3];
state[0][2] ^= GF_MUL[col[2]][4];
state[0][2] ^= GF_MUL[col[3]][2];
state[1][2] = GF_MUL[col[0]][2];
state[1][2] ^= GF_MUL[col[1]][5];
state[1][2] ^= GF_MUL[col[2]][3];
state[1][2] ^= GF_MUL[col[3]][4];
state[2][2] = GF_MUL[col[0]][4];
state[2][2] ^= GF_MUL[col[1]][2];
state[2][2] ^= GF_MUL[col[2]][5];
state[2][2] ^= GF_MUL[col[3]][3];
state[3][2] = GF_MUL[col[0]][3];
state[3][2] ^= GF_MUL[col[1]][4];
state[3][2] ^= GF_MUL[col[2]][2];
state[3][2] ^= GF_MUL[col[3]][5];
col[0] = state[0][3];
col[1] = state[1][3];
col[2] = state[2][3];
col[3] = state[3][3];
state[0][3] = GF_MUL[col[0]][5];
state[0][3] ^= GF_MUL[col[1]][3];
state[0][3] ^= GF_MUL[col[2]][4];
state[0][3] ^= GF_MUL[col[3]][2];
state[1][3] = GF_MUL[col[0]][2];
state[1][3] ^= GF_MUL[col[1]][5];
state[1][3] ^= GF_MUL[col[2]][3];
state[1][3] ^= GF_MUL[col[3]][4];
state[2][3] = GF_MUL[col[0]][4];
state[2][3] ^= GF_MUL[col[1]][2];
state[2][3] ^= GF_MUL[col[2]][5];
state[2][3] ^= GF_MUL[col[3]][3];
state[3][3] = GF_MUL[col[0]][3];
state[3][3] ^= GF_MUL[col[1]][4];
state[3][3] ^= GF_MUL[col[2]][2];
state[3][3] ^= GF_MUL[col[3]][5];
}
void aes256_encrypt(const uint8_t in[16], uint8_t out[16], const uint32_t w[60]) {
uint8_t state[4][4];
state[0][0] = in[0];
state[1][0] = in[1];
state[2][0] = in[2];
state[3][0] = in[3];
state[0][1] = in[4];
state[1][1] = in[5];
state[2][1] = in[6];
state[3][1] = in[7];
state[0][2] = in[8];
state[1][2] = in[9];
state[2][2] = in[10];
state[3][2] = in[11];
state[0][3] = in[12];
state[1][3] = in[13];
state[2][3] = in[14];
state[3][3] = in[15];
add_round_key(state, &w[0]);
sub_bytes(state);
shift_rows(state);
mix_columns(state);
add_round_key(state, &w[4]);
sub_bytes(state);
shift_rows(state);
mix_columns(state);
add_round_key(state, &w[8]);
sub_bytes(state);
shift_rows(state);
mix_columns(state);
add_round_key(state, &w[12]);
sub_bytes(state);
shift_rows(state);
mix_columns(state);
add_round_key(state, &w[16]);
sub_bytes(state);
shift_rows(state);
mix_columns(state);
add_round_key(state, &w[20]);
sub_bytes(state);
shift_rows(state);
mix_columns(state);
add_round_key(state, &w[24]);
sub_bytes(state);
shift_rows(state);
mix_columns(state);
add_round_key(state, &w[28]);
sub_bytes(state);
shift_rows(state);
mix_columns(state);
add_round_key(state, &w[32]);
sub_bytes(state);
shift_rows(state);
mix_columns(state);
add_round_key(state, &w[36]);
sub_bytes(state);
shift_rows(state);
mix_columns(state);
add_round_key(state, &w[40]);
sub_bytes(state);
shift_rows(state);
mix_columns(state);
add_round_key(state, &w[44]);
sub_bytes(state);
shift_rows(state);
mix_columns(state);
add_round_key(state, &w[48]);
sub_bytes(state);
shift_rows(state);
mix_columns(state);
add_round_key(state, &w[52]);
sub_bytes(state);
shift_rows(state);
add_round_key(state, &w[56]);
out[0] = state[0][0];
out[1] = state[1][0];
out[2] = state[2][0];
out[3] = state[3][0];
out[4] = state[0][1];
out[5] = state[1][1];
out[6] = state[2][1];
out[7] = state[3][1];
out[8] = state[0][2];
out[9] = state[1][2];
out[10] = state[2][2];
out[11] = state[3][2];
out[12] = state[0][3];
out[13] = state[1][3];
out[14] = state[2][3];
out[15] = state[3][3];
}
void aes256_decrypt(const uint8_t in[16], uint8_t out[16], const uint32_t w[60]) {
uint8_t state[4][4];
state[0][0] = in[0];
state[1][0] = in[1];
state[2][0] = in[2];
state[3][0] = in[3];
state[0][1] = in[4];
state[1][1] = in[5];
state[2][1] = in[6];
state[3][1] = in[7];
state[0][2] = in[8];
state[1][2] = in[9];
state[2][2] = in[10];
state[3][2] = in[11];
state[0][3] = in[12];
state[1][3] = in[13];
state[2][3] = in[14];
state[3][3] = in[15];
add_round_key(state, &w[56]);
inv_shift_rows(state);
inv_sub_bytes(state);
add_round_key(state, &w[52]);
inv_mix_columns(state);
inv_shift_rows(state);
inv_sub_bytes(state);
add_round_key(state, &w[48]);
inv_mix_columns(state);
inv_shift_rows(state);
inv_sub_bytes(state);
add_round_key(state, &w[44]);
inv_mix_columns(state);
inv_shift_rows(state);
inv_sub_bytes(state);
add_round_key(state, &w[40]);
inv_mix_columns(state);
inv_shift_rows(state);
inv_sub_bytes(state);
add_round_key(state, &w[36]);
inv_mix_columns(state);
inv_shift_rows(state);
inv_sub_bytes(state);
add_round_key(state, &w[32]);
inv_mix_columns(state);
inv_shift_rows(state);
inv_sub_bytes(state);
add_round_key(state, &w[28]);
inv_mix_columns(state);
inv_shift_rows(state);
inv_sub_bytes(state);
add_round_key(state, &w[24]);
inv_mix_columns(state);
inv_shift_rows(state);
inv_sub_bytes(state);
add_round_key(state, &w[20]);
inv_mix_columns(state);
inv_shift_rows(state);
inv_sub_bytes(state);
add_round_key(state, &w[16]);
inv_mix_columns(state);
inv_shift_rows(state);
inv_sub_bytes(state);
add_round_key(state, &w[12]);
inv_mix_columns(state);
inv_shift_rows(state);
inv_sub_bytes(state);
add_round_key(state, &w[8]);
inv_mix_columns(state);
inv_shift_rows(state);
inv_sub_bytes(state);
add_round_key(state, &w[4]);
inv_mix_columns(state);
inv_shift_rows(state);
inv_sub_bytes(state);
add_round_key(state, &w[0]);
out[0] = state[0][0];
out[1] = state[1][0];
out[2] = state[2][0];
out[3] = state[3][0];
out[4] = state[0][1];
out[5] = state[1][1];
out[6] = state[2][1];
out[7] = state[3][1];
out[8] = state[0][2];
out[9] = state[1][2];
out[10] = state[2][2];
out[11] = state[3][2];
out[12] = state[0][3];
out[13] = state[1][3];
out[14] = state[2][3];
out[15] = state[3][3];
}

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// Pyrogram - Telegram MTProto API Client Library for Python
// Copyright (C) 2017-2018 Dan Tès <https://github.com/delivrance>
//
// This file is part of Pyrogram.
//
// Pyrogram is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Pyrogram 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with Pyrogram. If not, see <http://www.gnu.org/licenses/>.
#include <stdint.h>
#include <stdlib.h>
#ifndef AES256_H
#define AES256_H
#define AES_BLOCK_SIZE 16
#define KEY_SCHEDULE_SIZE 60
void aes256_key_expansion(const uint8_t key[32], uint32_t w[60]);
void aes256_encrypt(const uint8_t in[16], uint8_t out[16], const uint32_t w[60]);
void aes256_decrypt(const uint8_t in[16], uint8_t out[16], const uint32_t w[60]);
#endif // AES256_H

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// Pyrogram - Telegram MTProto API Client Library for Python
// Copyright (C) 2017-2018 Dan Tès <https://github.com/delivrance>
//
// This file is part of Pyrogram.
//
// Pyrogram is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Pyrogram 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with Pyrogram. If not, see <http://www.gnu.org/licenses/>.
#include "aes256.h"
uint8_t *ctr256(const uint8_t in[], uint32_t length, const uint8_t key[32], const uint8_t iv[16]) {
uint8_t *out = (uint8_t *) malloc(length * sizeof(uint8_t));
uint8_t iv_buf[AES_BLOCK_SIZE], out_buf[AES_BLOCK_SIZE];
uint32_t key_schedule[KEY_SCHEDULE_SIZE];
memcpy(out, in, length);
memcpy(iv_buf, iv, AES_BLOCK_SIZE);
aes256_key_expansion(key, key_schedule);
uint32_t i = 0, j;
if (length > AES_BLOCK_SIZE)
for (i = 0; i < length - AES_BLOCK_SIZE; i += AES_BLOCK_SIZE) {
aes256_encrypt(iv_buf, out_buf, key_schedule);
for (j = 0; j < AES_BLOCK_SIZE; ++j)
out[i + j] ^= out_buf[j];
for (j = AES_BLOCK_SIZE - 1; j >= 0; --j)
if (++iv_buf[j])
break;
}
aes256_encrypt(iv_buf, out_buf, key_schedule);
for (j = 0; j < length - i; ++j)
out[i + j] ^= out_buf[j];
return out;
}
uint8_t *ctr256_encrypt(uint8_t *in, uint32_t length, uint8_t *key, uint8_t *iv) {
return ctr256(in, length, key, iv);
}
uint8_t *ctr256_decrypt(uint8_t *in, uint32_t length, uint8_t *key, uint8_t *iv) {
return ctr256(in, length, key, iv);
}

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// Pyrogram - Telegram MTProto API Client Library for Python
// Copyright (C) 2017-2018 Dan Tès <https://github.com/delivrance>
//
// This file is part of Pyrogram.
//
// Pyrogram is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Pyrogram 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with Pyrogram. If not, see <http://www.gnu.org/licenses/>.
#ifndef CTR256_H
#define CTR256_H
uint8_t *ctr256_encrypt(const uint8_t in[], uint32_t length, const uint8_t key[32], const uint8_t iv[16]);
uint8_t *ctr256_decrypt(const uint8_t in[], uint32_t length, const uint8_t key[32], const uint8_t iv[16]);
#endif //IGE256_H

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// Pyrogram - Telegram MTProto API Client Library for Python
// Copyright (C) 2017-2018 Dan Tès <https://github.com/delivrance>
//
// This file is part of Pyrogram.
//
// Pyrogram is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Pyrogram 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with Pyrogram. If not, see <http://www.gnu.org/licenses/>.
#include "aes256.h"
uint8_t *ige256(const uint8_t in[], uint32_t length, const uint8_t key[32], const uint8_t iv[32], uint8_t encrypt) {
uint8_t *out = (uint8_t *) malloc(length * sizeof(uint8_t));
uint8_t iv_1[AES_BLOCK_SIZE], iv_2[AES_BLOCK_SIZE];
uint8_t chunk[AES_BLOCK_SIZE], buffer[AES_BLOCK_SIZE];
uint32_t key_schedule[KEY_SCHEDULE_SIZE];
memcpy(encrypt ? iv_1 : iv_2, (uint8_t *) iv, AES_BLOCK_SIZE);
memcpy(encrypt ? iv_2 : iv_1, (uint8_t *) iv + AES_BLOCK_SIZE, AES_BLOCK_SIZE);
aes256_key_expansion(key, key_schedule);
uint32_t i, j;
for (i = 0; i < length; i += AES_BLOCK_SIZE) {
memcpy(chunk, &in[i], AES_BLOCK_SIZE);
for (j = 0; j < AES_BLOCK_SIZE; ++j)
buffer[j] = in[i + j] ^ iv_1[j];
(encrypt ? aes256_encrypt : aes256_decrypt)((uint8_t *) &buffer, &out[i], key_schedule);
for (j = 0; j < AES_BLOCK_SIZE; ++j)
out[i + j] ^= iv_2[j];
memcpy(iv_1, &out[i], AES_BLOCK_SIZE);
memcpy(iv_2, chunk, AES_BLOCK_SIZE);
}
return out;
}
uint8_t *ige256_encrypt(const uint8_t in[], uint32_t length, const uint8_t key[32], const uint8_t iv[32]) {
return ige256(in, length, key, iv, 1);
}
uint8_t *ige256_decrypt(const uint8_t in[], uint32_t length, const uint8_t key[32], const uint8_t iv[32]) {
return ige256(in, length, key, iv, 0);
}

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// Pyrogram - Telegram MTProto API Client Library for Python
// Copyright (C) 2017-2018 Dan Tès <https://github.com/delivrance>
//
// This file is part of Pyrogram.
//
// Pyrogram is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Pyrogram 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with Pyrogram. If not, see <http://www.gnu.org/licenses/>.
#ifndef IGE256_H
#define IGE256_H
uint8_t *ige256_encrypt(const uint8_t in[], uint32_t length, const uint8_t key[32], const uint8_t iv[32]);
uint8_t *ige256_decrypt(const uint8_t in[], uint32_t length, const uint8_t key[32], const uint8_t iv[32]);
#endif //IGE256_H

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// Pyrogram - Telegram MTProto API Client Library for Python
// Copyright (C) 2017-2018 Dan Tès <https://github.com/delivrance>
//
// This file is part of Pyrogram.
//
// Pyrogram is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Pyrogram 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with Pyrogram. If not, see <http://www.gnu.org/licenses/>.
#include <Python.h>
#include "ige256.h"
#include "ctr256.h"
static PyObject* tgcrypto(PyObject *args, uint8_t mode, uint8_t encrypt) {
Py_buffer data, key, iv;
uint8_t *(*fn)(), *buf;
PyArg_ParseTuple(args, "y*y*y*", &data, &key, &iv);
fn = encrypt? mode? ctr256_encrypt: ige256_encrypt: mode? ctr256_decrypt: ige256_decrypt;
buf = fn(data.buf, data.len, key.buf, iv.buf);
PyBuffer_Release(&data);
PyBuffer_Release(&key);
PyBuffer_Release(&iv);
PyObject* out = Py_BuildValue("y#", buf, data.len);
free(buf);
return out;
}
static PyObject* ige_encrypt(PyObject *self, PyObject *args) {
return tgcrypto(args, 0, 1);
}
static PyObject* ige_decrypt(PyObject *self, PyObject *args) {
return tgcrypto(args, 0, 0);
}
static PyObject* ctr_encrypt(PyObject *self, PyObject *args) {
return tgcrypto(args, 1, 1);
}
static PyObject* ctr_decrypt(PyObject *self, PyObject *args) {
return tgcrypto(args, 1, 0);
}
static PyMethodDef methods[] = {
{"ige_encrypt", (PyCFunction) ige_encrypt, METH_VARARGS, "AES-256-IGE Encryption"},
{"ige_decrypt", (PyCFunction) ige_decrypt, METH_VARARGS, "AES-256-IGE Decryption"},
{"ctr_encrypt", (PyCFunction) ctr_encrypt, METH_VARARGS, "AES-256-CTR Encryption"},
{"ctr_decrypt", (PyCFunction) ctr_decrypt, METH_VARARGS, "AES-256-CTR Decryption"},
{NULL, NULL, 0, NULL}
};
static struct PyModuleDef module = {
PyModuleDef_HEAD_INIT,
"tgcrypto",
"Telegram Crypto for Pyrogram",
-1,
methods
};
PyMODINIT_FUNC PyInit_tgcrypto(void) {
return PyModule_Create(&module);
}