base_ot_data.h

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// MIT License
//
// Copyright (c) 2019 Oleksandr Tkachenko, Lennart Braun
// Cryptography and Privacy Engineering Group (ENCRYPTO)
// TU Darmstadt, Germany
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
 
#pragma once
 
#include <array>
#include <atomic>
#include <boost/container/vector.hpp>
#include <cstddef>
#include <memory>
#include <vector>
#include "utility/bit_vector.h"
 
namespace encrypto::motion {
 
class FiberCondition;
 
enum BaseOtDataType : unsigned int { kHL17R = 0, kHL17S = 1, kBaseOtInvalidDataType = 2 };
 
struct BaseOtReceiverData {
  BaseOtReceiverData();
  ~BaseOtReceiverData() = default;
 
  BitVector<> c;  
  std::array<std::array<std::byte, 16>, 128> messages_c;
 
  std::vector<std::array<std::byte, 32>> S;
  boost::container::vector<bool> received_S;
  std::vector<std::unique_ptr<FiberCondition>> received_S_condition;
 
  // number of used rows;
  std::size_t consumed_offset{0};
 
  std::atomic<bool> is_ready{false};
  std::unique_ptr<FiberCondition> is_ready_condition;
};
 
struct BaseOtSenderData {
  BaseOtSenderData();
  ~BaseOtSenderData() = default;
 
  std::array<std::array<std::byte, 16>, 128> messages_0;
  std::array<std::array<std::byte, 16>, 128> messages_1;
 
  std::vector<std::array<std::byte, 32>> R;
  boost::container::vector<bool> received_R;
  std::vector<std::unique_ptr<FiberCondition>> received_R_condition;
 
  // number of used rows;
  std::size_t consumed_offset{0};
 
  std::unique_ptr<FiberCondition> is_ready_condition;
  std::atomic<bool> is_ready{false};
};
 
struct BaseOtData {
  void MessageReceived(const std::uint8_t* message, const BaseOtDataType type,
                       const std::size_t ot_id = 0);
 
  BaseOtReceiverData& GetReceiverData() { return receiver_data; }
  const BaseOtReceiverData& GetReceiverData() const { return receiver_data; }
  BaseOtSenderData& GetSenderData() { return sender_data; }
  const BaseOtSenderData& GetSenderData() const { return sender_data; }
 
  BaseOtReceiverData receiver_data;
  BaseOtSenderData sender_data;
};
 
}  // namespace encrypto::motion