multi_exp.tcc

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// Copyright (c) 2015-2022 Clearmatics Technologies Ltd
//
// SPDX-License-Identifier: LGPL-3.0+
 
#ifndef __ZETH_CORE_MULTI_EXP_TCC__
#define __ZETH_CORE_MULTI_EXP_TCC__
 
#include "libzeth/core/multi_exp.hpp"
 
namespace libzeth
{
 
template<typename FieldT, typename GroupT>
GroupT multi_exp(
    typename std::vector<GroupT>::const_iterator gs_start,
    typename std::vector<GroupT>::const_iterator gs_end,
    typename std::vector<FieldT>::const_iterator fs_start,
    typename std::vector<FieldT>::const_iterator fs_end)
{
    const libff::multi_exp_method Method = libff::multi_exp_method_BDLO12;
    return libff::multi_exp_filter_one_zero<GroupT, FieldT, Method>(
        gs_start, gs_end, fs_start, fs_end, 1);
}
 
template<typename ppT, typename GroupT>
GroupT multi_exp(const std::vector<GroupT> &gs, const libff::Fr_vector<ppT> &fs)
{
    assert(gs.size() >= fs.size());
    assert(gs.size() > 0);
 
    using Fr = libff::Fr<ppT>;
    const libff::multi_exp_method Method = libff::multi_exp_method_BDLO12;
    return libff::multi_exp_filter_one_zero<GroupT, Fr, Method>(
        gs.begin(), gs.begin() + fs.size(), fs.begin(), fs.end(), 1);
}
 
} // namespace libzeth
 
#endif // __ZETH_CORE_MULTI_EXP_TCC__