commit eee60638bd1154b63839c644ba0e93963ece0f40 Author: Dan <14043624+delivrance@users.noreply.github.com> Date: Sat Jan 27 17:15:32 2018 +0100 Initial commit diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..e802119 --- /dev/null +++ b/.gitignore @@ -0,0 +1,107 @@ +# 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/ \ No newline at end of file diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..e72bfdd --- /dev/null +++ b/COPYING @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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Such new +versions will be similar in spirit to the present version, but may +differ in detail to address new problems or concerns. + + Each version is given a distinguishing version number. If the +Library as you received it specifies that a certain numbered version +of the GNU Lesser General Public License "or any later version" +applies to it, you have the option of following the terms and +conditions either of that published version or of any later version +published by the Free Software Foundation. If the Library as you +received it does not specify a version number of the GNU Lesser +General Public License, you may choose any version of the GNU Lesser +General Public License ever published by the Free Software Foundation. + + If the Library as you received it specifies that a proxy can decide +whether future versions of the GNU Lesser General Public License shall +apply, that proxy's public statement of acceptance of any version is +permanent authorization for you to choose that version for the +Library. \ No newline at end of file diff --git a/MANIFEST.in b/MANIFEST.in new file mode 100644 index 0000000..a6a6bcf --- /dev/null +++ b/MANIFEST.in @@ -0,0 +1,3 @@ +## Include +include COPYING COPYING.lesser NOTICE +recursive-include tgcrypto *.c *.h \ No newline at end of file diff --git a/NOTICE b/NOTICE new file mode 100644 index 0000000..a7e2b00 --- /dev/null +++ b/NOTICE @@ -0,0 +1,17 @@ +Pyrogram - Telegram MTProto API Client Library for Python +Copyright (C) 2017-2018 Dan Tès + +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 . \ No newline at end of file diff --git a/README.rst b/README.rst new file mode 100644 index 0000000..ca822ad --- /dev/null +++ b/README.rst @@ -0,0 +1,4 @@ +TgCrypto +======== + +Telegram Crypto for `Pyrogram `_ \ No newline at end of file diff --git a/setup.py b/setup.py new file mode 100644 index 0000000..44b5f0e --- /dev/null +++ b/setup.py @@ -0,0 +1,60 @@ +# Pyrogram - Telegram MTProto API Client Library for Python +# Copyright (C) 2017-2018 Dan Tès +# +# 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 . + +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" + ] + ) + ] +) diff --git a/tgcrypto/aes256.c b/tgcrypto/aes256.c new file mode 100644 index 0000000..950c1ee --- /dev/null +++ b/tgcrypto/aes256.c @@ -0,0 +1,873 @@ +// Pyrogram - Telegram MTProto API Client Library for Python +// Copyright (C) 2017-2018 Dan Tès +// +// 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 . + +#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]; +} diff --git a/tgcrypto/aes256.h b/tgcrypto/aes256.h new file mode 100644 index 0000000..cdbb1e8 --- /dev/null +++ b/tgcrypto/aes256.h @@ -0,0 +1,34 @@ +// Pyrogram - Telegram MTProto API Client Library for Python +// Copyright (C) 2017-2018 Dan Tès +// +// 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 . + +#include +#include + +#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 diff --git a/tgcrypto/ctr256.c b/tgcrypto/ctr256.c new file mode 100644 index 0000000..9896522 --- /dev/null +++ b/tgcrypto/ctr256.c @@ -0,0 +1,57 @@ +// Pyrogram - Telegram MTProto API Client Library for Python +// Copyright (C) 2017-2018 Dan Tès +// +// 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 . + +#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); +} diff --git a/tgcrypto/ctr256.h b/tgcrypto/ctr256.h new file mode 100644 index 0000000..c7fae6d --- /dev/null +++ b/tgcrypto/ctr256.h @@ -0,0 +1,26 @@ +// Pyrogram - Telegram MTProto API Client Library for Python +// Copyright (C) 2017-2018 Dan Tès +// +// 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 . + +#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 diff --git a/tgcrypto/ige256.c b/tgcrypto/ige256.c new file mode 100644 index 0000000..06cb03d --- /dev/null +++ b/tgcrypto/ige256.c @@ -0,0 +1,56 @@ +// Pyrogram - Telegram MTProto API Client Library for Python +// Copyright (C) 2017-2018 Dan Tès +// +// 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 . + +#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); +} diff --git a/tgcrypto/ige256.h b/tgcrypto/ige256.h new file mode 100644 index 0000000..091f84c --- /dev/null +++ b/tgcrypto/ige256.h @@ -0,0 +1,26 @@ +// Pyrogram - Telegram MTProto API Client Library for Python +// Copyright (C) 2017-2018 Dan Tès +// +// 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 . + +#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 diff --git a/tgcrypto/tgcrypto.c b/tgcrypto/tgcrypto.c new file mode 100644 index 0000000..94b7551 --- /dev/null +++ b/tgcrypto/tgcrypto.c @@ -0,0 +1,77 @@ +// Pyrogram - Telegram MTProto API Client Library for Python +// Copyright (C) 2017-2018 Dan Tès +// +// 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 . + +#include +#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); +}