ecc_transcript_relation.hpp

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// === AUDIT STATUS ===
// internal:    { status: Complete, auditors: [Raju], commit: 2a49eb6 }
// external_1:  { status: not started, auditors: [], commit: }
// external_2:  { status: not started, auditors: [], commit: }
// =====================
 
#pragma once
 
#include "barretenberg/ecc/curves/bn254/g1.hpp"
#include "barretenberg/ecc/curves/grumpkin/grumpkin.hpp"
#include "barretenberg/relations/relation_types.hpp"
 
namespace bb {
 
template <typename FF_> class ECCVMTranscriptRelationImpl {
  public:
    using FF = FF_;
 
    static constexpr std::array<size_t, 27> SUBRELATION_PARTIAL_LENGTHS{
        8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
    };
 
    template <typename ContainerOverSubrelations, typename AllEntities, typename Parameters>
    static void accumulate(ContainerOverSubrelations& accumulator,
                           const AllEntities& in,
                           const Parameters& /* unused */,
                           const FF& scaling_factor);
 
    static constexpr FF get_curve_b()
    {
        if constexpr (FF::modulus == bb::fq::modulus) {
            return bb::g1::curve_b;
        } else if constexpr (FF::modulus == grumpkin::fq::modulus) {
            return grumpkin::g1::curve_b;
        } else {
            static_assert(!std::is_same_v<FF, FF>, "Unsupported field type for ECC transcript relation");
        }
    }
};
 
template <typename FF> using ECCVMTranscriptRelation = Relation<ECCVMTranscriptRelationImpl<FF>>;
 
} // namespace bb