Program Listing for File lwe-ciphertext.h
↰ Return to documentation for file (binfhe/include/lwe-ciphertext.h
)
//==================================================================================
// BSD 2-Clause License
//
// Copyright (c) 2014-2022, NJIT, Duality Technologies Inc. and other contributors
//
// All rights reserved.
//
// Author TPOC: contact@openfhe.org
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//==================================================================================
#ifndef _LWE_CIPHERTEXT_H_
#define _LWE_CIPHERTEXT_H_
#include "lwe-ciphertext-fwd.h"
#include "math/math-hal.h"
#include "utils/serializable.h"
#include <string>
#include <utility>
#include <vector>
namespace lbcrypto {
class LWECiphertextImpl : public Serializable {
public:
LWECiphertextImpl() = default;
LWECiphertextImpl(const NativeVector& a, const NativeInteger& b) : m_a(a), m_b(b) {}
LWECiphertextImpl(NativeVector&& a, NativeInteger b) noexcept : m_a(std::move(a)), m_b(b) {}
LWECiphertextImpl(const LWECiphertextImpl& rhs) : m_a(rhs.m_a), m_b(rhs.m_b) {}
LWECiphertextImpl(LWECiphertextImpl&& rhs) noexcept : m_a(std::move(rhs.m_a)), m_b(std::move(rhs.m_b)) {}
LWECiphertextImpl& operator=(const LWECiphertextImpl& rhs) {
m_a = rhs.m_a;
m_b = rhs.m_b;
return *this;
}
LWECiphertextImpl& operator=(LWECiphertextImpl&& rhs) noexcept {
m_a = std::move(rhs.m_a);
m_b = std::move(rhs.m_b);
return *this;
}
const NativeVector& GetA() const {
return m_a;
}
NativeVector& GetA() {
return m_a;
}
const NativeInteger& GetA(std::size_t i) const {
return m_a[i];
}
NativeInteger& GetA(std::size_t i) {
return m_a[i];
}
const NativeInteger& GetB() const {
return m_b;
}
NativeInteger& GetB() {
return m_b;
}
const NativeInteger& GetModulus() const {
return m_a.GetModulus();
}
uint32_t GetLength() const {
return m_a.GetLength();
}
const NativeInteger& GetptModulus() const {
return m_p;
}
void SetA(const NativeVector& a) {
m_a = a;
}
void SetB(const NativeInteger& b) {
m_b = b;
}
void SetModulus(const NativeInteger& mod) {
m_a.ModEq(mod);
m_a.SetModulus(mod);
m_b.ModEq(mod);
}
void SetptModulus(const NativeInteger& pmod) {
m_p = pmod;
}
bool operator==(const LWECiphertextImpl& other) const {
return m_a == other.m_a && m_b == other.m_b;
}
bool operator!=(const LWECiphertextImpl& other) const {
return !(*this == other);
}
template <class Archive>
void save(Archive& ar, std::uint32_t const version) const {
ar(::cereal::make_nvp("a", m_a));
ar(::cereal::make_nvp("b", m_b));
}
template <class Archive>
void load(Archive& ar, std::uint32_t const version) {
if (version > SerializedVersion()) {
OPENFHE_THROW("serialized object version " + std::to_string(version) +
" is from a later version of the library");
}
ar(::cereal::make_nvp("a", m_a));
ar(::cereal::make_nvp("b", m_b));
}
std::string SerializedObjectName() const override {
return "LWECiphertext";
}
static uint32_t SerializedVersion() {
return 1;
}
private:
NativeVector m_a{};
NativeInteger m_b{};
NativeInteger m_p = 4; // pt modulus
};
} // namespace lbcrypto
#endif // _LWE_CIPHERTEXT_H_