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