mirror of
https://github.com/telegramdesktop/tdesktop
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08167a6a91
Currently the build without implicitly included precompiled header is not supported anyway (because Qt MOC source files do not include stdafx.h, they include plain headers). So when we decide to support building without implicitly included precompiled headers we'll have to fix all the headers anyway.
58 lines
2.1 KiB
C++
58 lines
2.1 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop version of Telegram messaging app, see https://telegram.org
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Telegram Desktop is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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It is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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In addition, as a special exception, the copyright holders give permission
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to link the code of portions of this program with the OpenSSL library.
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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
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*/
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#include "mtproto/auth_key.h"
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#include <openssl/aes.h>
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namespace MTP {
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void aesIgeEncrypt(const void *src, void *dst, uint32 len, const void *key, const void *iv) {
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uchar aes_key[32], aes_iv[32];
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memcpy(aes_key, key, 32);
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memcpy(aes_iv, iv, 32);
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AES_KEY aes;
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AES_set_encrypt_key(aes_key, 256, &aes);
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AES_ige_encrypt(static_cast<const uchar*>(src), static_cast<uchar*>(dst), len, &aes, aes_iv, AES_ENCRYPT);
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}
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void aesIgeDecrypt(const void *src, void *dst, uint32 len, const void *key, const void *iv) {
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uchar aes_key[32], aes_iv[32];
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memcpy(aes_key, key, 32);
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memcpy(aes_iv, iv, 32);
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AES_KEY aes;
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AES_set_decrypt_key(aes_key, 256, &aes);
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AES_ige_encrypt(static_cast<const uchar*>(src), static_cast<uchar*>(dst), len, &aes, aes_iv, AES_DECRYPT);
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}
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void aesCtrEncrypt(void *data, uint32 len, const void *key, CTRState *state) {
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AES_KEY aes;
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AES_set_encrypt_key(static_cast<const uchar*>(key), 256, &aes);
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static_assert(CTRState::IvecSize == AES_BLOCK_SIZE, "Wrong size of ctr ivec!");
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static_assert(CTRState::EcountSize == AES_BLOCK_SIZE, "Wrong size of ctr ecount!");
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AES_ctr128_encrypt(static_cast<const uchar*>(data), static_cast<uchar*>(data), len, &aes, state->ivec, state->ecount, &state->num);
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}
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} // namespace MTP
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