SecretKey.hpp

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//                                                                            //
// Copyright (C) 2021-2023 Crypto Lab Inc.                                    //
//                                                                            //
// - This file is part of HEaaN homomorphic encryption library.               //
// - HEaaN cannot be copied and/or distributed without the express permission //
//  of Crypto Lab Inc.                                                        //
//                                                                            //
 
#pragma once
 
#include "HEaaN/Context.hpp"
#include "HEaaN/HEaaNExport.hpp"
#include "HEaaN/Pointer.hpp"
#include "HEaaN/device/Device.hpp"
 
namespace HEaaN {
class SecretKeyImpl;
class Polynomial;
 
 
class HEAAN_API SecretKey {
public:
    using Coefficients = int *;
    explicit SecretKey(const Context &context);
    explicit SecretKey(const Context &context, std::istream &stream);
    explicit SecretKey(const Context &context, const std::string &key_dir_path);
 
    explicit SecretKey(const Context &context,
                       const Coefficients &coefficients);
 
    void save(const std::string &path) const;
    void save(std::ostream &stream) const;
 
    void saveSeedOnly(const std::string &path) const;
    void saveSeedOnly(std::ostream &stream) const;
 
    const Context &getContext() const;
 
    Polynomial &getSx();
    const Polynomial &getSx() const;
 
    Coefficients getCoefficients() const;
 
    const Device &getDevice() const;
 
    void to(const Device &device);
 
private:
    Pointer<SecretKeyImpl> impl_;
};
 
} // namespace HEaaN