bmr_provider.h

Go to the documentation of this file.

// MIT License
//
// Copyright (c) 2020 Lennart Braun
//
// 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 <memory>
#include <vector>
 
#include "utility/bit_vector.h"
#include "utility/block.h"
#include "utility/reusable_future.h"
 
namespace encrypto::motion::communication {
 
class CommunicationLayer;
 
}  // namespace encrypto::motion::communication
 
namespace encrypto::motion::proto::bmr {
 
struct Data;
 
class Provider {
 public:
  Provider(communication::CommunicationLayer& communication_layer);
  ~Provider();
  const Block128& GetGlobalOffset() const { return global_offset_; }
  ReusableFiberFuture<BitVector<>> RegisterForInputPublicValues(std::size_t input_owner,
                                                                std::size_t gate_id,
                                                                std::size_t bitlength);
  std::vector<ReusableFiberFuture<BitVector<>>> RegisterForInputPublicValues(std::size_t gate_id,
                                                                             std::size_t bitlength);
  std::vector<ReusableFiberFuture<Block128Vector>> RegisterForInputKeys(std::size_t gate_id,
                                                                        std::size_t number_blocks);
  std::vector<ReusableFiberFuture<Block128Vector>> RegisterForGarbledRows(
      std::size_t gate_id, std::size_t number_blocks);
 
 private:
  communication::CommunicationLayer& communication_layer_;
  std::size_t my_id_;
  std::size_t number_of_parties_;
  std::vector<std::unique_ptr<Data>> data_;
  Block128 global_offset_;
};
 
}  // namespace encrypto::motion::proto::bmr