frp_v1.hpp

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//---------------------------------------------------------------------------//
// Copyright (c) 2020-2021 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
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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//---------------------------------------------------------------------------//
 
#ifndef CRYPTO3_ALGEBRA_CURVES_FRP_V1_HPP
#define CRYPTO3_ALGEBRA_CURVES_FRP_V1_HPP
 
#include <nil/crypto3/algebra/fields/frp_v1/base_field.hpp>
#include <nil/crypto3/algebra/fields/frp_v1/scalar_field.hpp>
 
#include <nil/crypto3/detail/literals.hpp>
 
namespace nil {
    namespace crypto3 {
        namespace algebra {
            namespace curves {
 
                template<std::size_t PBits>
                struct frp_v1 { };
 
                template<>
                struct frp_v1<256> {
                    constexpr static const std::size_t base_field_bits = 256;
                    typedef fields::frp_v1_fq<base_field_bits> base_field_type;
                    typedef typename base_field_type::integral_type integral_type;
                    constexpr static const integral_type base_field_modulus = base_field_type::modulus;
 
                    constexpr static const std::size_t scalar_field_bits = 256;
                    typedef fields::frp_v1_fr<scalar_field_bits> scalar_field_type;
                    constexpr static const integral_type scalar_field_modulus = scalar_field_type::modulus;
 
                    constexpr static const integral_type p = base_field_modulus;
                    constexpr static const integral_type q = scalar_field_modulus;
 
                    constexpr static const integral_type a =
                        0xF1FD178C0B3AD58F10126DE8CE42435B3961ADBCABC8CA6DE8FCF353D86E9C00_cppui256;
                    constexpr static const integral_type b =
                        0xEE353FCA5428A9300D4ABA754A44C00FDFEC0C9AE4B1A1803075ED967B7BB73F_cppui256;
                    constexpr static const integral_type x =
                        0xB6B3D4C356C139EB31183D4749D423958C27D2DCAF98B70164C97A2DD98F5CFF_cppui256;
                    constexpr static const integral_type y =
                        0x6142E0F7C8B204911F9271F0F3ECEF8C2701C307E8E4C9E183115A1554062CFB_cppui256;
                };
            }    // namespace curves
        }        // namespace algebra
    }            // namespace crypto3
}    // namespace nil
 
#endif    // CRYPTO3_ALGEBRA_CURVES_FRP_V1_HPP