42 lines
1.1 KiB
C++
42 lines
1.1 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2020
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#pragma once
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#include "td/utils/Random.h"
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#include "td/utils/StorerBase.h"
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namespace td {
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namespace mtproto {
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class NoCryptoImpl {
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public:
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NoCryptoImpl(uint64 message_id, const Storer &data, bool need_pad = true) : message_id_(message_id), data_(data) {
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if (need_pad) {
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size_t pad_size = -static_cast<int>(data_.size()) & 15;
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pad_size += 16 * (static_cast<size_t>(Random::secure_int32()) % 16);
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pad_.resize(pad_size);
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Random::secure_bytes(pad_);
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}
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}
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template <class StorerT>
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void do_store(StorerT &storer) const {
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storer.store_binary(message_id_);
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storer.store_binary(static_cast<int32>(data_.size() + pad_.size()));
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storer.store_storer(data_);
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storer.store_slice(pad_);
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}
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private:
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uint64 message_id_;
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const Storer &data_;
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std::string pad_;
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};
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} // namespace mtproto
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} // namespace td
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