systems/ppzksnark/uscs_ppzksnark/proving_key.hpp

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//---------------------------------------------------------------------------//
// Copyright (c) 2018-2021 Mikhail Komarov <nemo@nil.foundation>
// Copyright (c) 2020-2021 Nikita Kaskov <nbering@nil.foundation>
//
// MIT License
//
// 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
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//---------------------------------------------------------------------------//
 
#ifndef CRYPTO3_USCS_PPZKSNARK_PROVING_KEY_HPP
#define CRYPTO3_USCS_PPZKSNARK_PROVING_KEY_HPP
 
#include <vector>
 
namespace nil {
    namespace crypto3 {
        namespace zk {
            namespace snark {
                template<typename CurveType, typename ConstraintSystem>
                class uscs_ppzksnark_proving_key {
                    using g1_type = typename CurveType::template g1_type<>;
                    using g2_type = typename CurveType::template g2_type<>;
                public:
 
                    typedef ConstraintSystem constraint_system_type;
 
                    std::vector<typename g1_type::value_type> V_g1_query;
                    std::vector<typename g1_type::value_type> alpha_V_g1_query;
                    std::vector<typename g1_type::value_type> H_g1_query;
                    std::vector<typename g2_type::value_type> V_g2_query;
 
                    constraint_system_type constraint_system;
 
                    uscs_ppzksnark_proving_key() {};
                    uscs_ppzksnark_proving_key &operator=(const uscs_ppzksnark_proving_key &other) = default;
                    uscs_ppzksnark_proving_key(const uscs_ppzksnark_proving_key &other) = default;
                    uscs_ppzksnark_proving_key(uscs_ppzksnark_proving_key &&other) = default;
                    uscs_ppzksnark_proving_key(std::vector<typename g1_type::value_type> &&V_g1_query,
                                               std::vector<typename g1_type::value_type> &&alpha_V_g1_query,
                                               std::vector<typename g1_type::value_type> &&H_g1_query,
                                               std::vector<typename g2_type::value_type> &&V_g2_query,
                                               constraint_system_type &&constraint_system) :
                        V_g1_query(std::move(V_g1_query)),
                        alpha_V_g1_query(std::move(alpha_V_g1_query)), H_g1_query(std::move(H_g1_query)),
                        V_g2_query(std::move(V_g2_query)), constraint_system(std::move(constraint_system)) {};
 
                    std::size_t G1_size() const {
                        return V_g1_query.size() + alpha_V_g1_query.size() + H_g1_query.size();
                    }
 
                    std::size_t G2_size() const {
                        return V_g2_query.size();
                    }
 
                    std::size_t G1_sparse_size() const {
                        return G1_size();
                    }
 
                    std::size_t G2_sparse_size() const {
                        return G2_size();
                    }
 
                    std::size_t size_in_bits() const {
                        return g1_type::value_bits * G1_size() + g2_type::value_bits * G2_size();
                    }
 
                    bool operator==(const uscs_ppzksnark_proving_key &other) const {
                        return (this->V_g1_query == other.V_g1_query &&
                                this->alpha_V_g1_query == other.alpha_V_g1_query &&
                                this->H_g1_query == other.H_g1_query && this->V_g2_query == other.V_g2_query &&
                                this->constraint_system == other.constraint_system);
                    }
                };
            }    // namespace snark
        }        // namespace zk
    }            // namespace crypto3
}    // namespace nil
 
#endif    // CRYPTO3_R1CS_PPZKSNARK_BASIC_PROVER_HPP