algorithm/verify_share.hpp

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//---------------------------------------------------------------------------//
// Copyright (c) 2020-2021 Mikhail Komarov <nemo@nil.foundation>
// Copyright (c) 2020-2021 Ilias Khairullin <ilias@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:
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// The above copyright notice and this permission notice shall be included in all
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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//---------------------------------------------------------------------------//
 
#ifndef CRYPTO3_PUBKEY_VERIFY_SHARE_HPP
#define CRYPTO3_PUBKEY_VERIFY_SHARE_HPP
 
#include <nil/crypto3/pubkey/algorithm/pubkey.hpp>
 
#include <nil/crypto3/pubkey/pubkey_value.hpp>
#include <nil/crypto3/pubkey/secret_sharing_state.hpp>
 
#include <nil/crypto3/pubkey/modes/isomorphic.hpp>
 
namespace nil {
    namespace crypto3 {
        namespace pubkey {
            template<typename Scheme>
            using share_verification_policy = typename pubkey::modes::isomorphic<Scheme>::share_verification_policy;
 
            template<typename Scheme>
            using share_verification_processing_mode_default =
                typename modes::isomorphic<Scheme>::template bind<share_verification_policy<Scheme>>::type;
        }    // namespace pubkey
 
        template<typename Scheme, typename InputIterator, typename OutputIterator,
                 typename ProcessingMode = pubkey::share_verification_processing_mode_default<Scheme>>
        OutputIterator verify_share(InputIterator first, InputIterator last, const pubkey::public_share_sss<Scheme> &s,
                                    OutputIterator out) {
 
            typedef typename pubkey::share_verification_accumulator_set<ProcessingMode> VerificationAccumulator;
 
            typedef pubkey::detail::value_pubkey_impl<VerificationAccumulator> StreamSchemeImpl;
            typedef pubkey::detail::itr_pubkey_impl<StreamSchemeImpl, OutputIterator> SchemeImpl;
 
            return SchemeImpl(first, last, std::move(out), VerificationAccumulator(s));
        }
 
        template<typename Scheme, typename SinglePassRange, typename OutputIterator,
                 typename ProcessingMode = pubkey::share_verification_processing_mode_default<Scheme>>
        OutputIterator verify_share(const SinglePassRange &range, const pubkey::public_share_sss<Scheme> &s,
                                    OutputIterator out) {
 
            typedef typename pubkey::share_verification_accumulator_set<ProcessingMode> VerificationAccumulator;
 
            typedef pubkey::detail::value_pubkey_impl<VerificationAccumulator> StreamSchemeImpl;
            typedef pubkey::detail::itr_pubkey_impl<StreamSchemeImpl, OutputIterator> SchemeImpl;
 
            return SchemeImpl(range, std::move(out), VerificationAccumulator(s));
        }
 
        template<typename Scheme, typename InputIterator,
                 typename ProcessingMode = pubkey::share_verification_processing_mode_default<Scheme>,
                 typename OutputAccumulator = typename pubkey::share_verification_accumulator_set<ProcessingMode>>
        typename std::enable_if<boost::accumulators::detail::is_accumulator_set<OutputAccumulator>::value,
                                OutputAccumulator>::type &
            verify_share(InputIterator first, InputIterator last, OutputAccumulator &acc) {
 
            typedef pubkey::detail::ref_pubkey_impl<OutputAccumulator> StreamSchemeImpl;
            typedef pubkey::detail::range_pubkey_impl<StreamSchemeImpl> SchemeImpl;
 
            return SchemeImpl(first, last, std::forward<OutputAccumulator>(acc));
        }
 
        template<typename Scheme, typename SinglePassRange,
                 typename ProcessingMode = pubkey::share_verification_processing_mode_default<Scheme>,
                 typename OutputAccumulator = typename pubkey::share_verification_accumulator_set<ProcessingMode>>
        typename std::enable_if<boost::accumulators::detail::is_accumulator_set<OutputAccumulator>::value,
                                OutputAccumulator>::type &
            verify_share(const SinglePassRange &range, OutputAccumulator &acc) {
 
            typedef pubkey::detail::ref_pubkey_impl<OutputAccumulator> StreamSchemeImpl;
            typedef pubkey::detail::range_pubkey_impl<StreamSchemeImpl> SchemeImpl;
 
            return SchemeImpl(range, std::forward<OutputAccumulator>(acc));
        }
 
        template<typename Scheme, typename InputIterator,
                 typename ProcessingMode = pubkey::share_verification_processing_mode_default<Scheme>,
                 typename VerificationAccumulator = typename pubkey::share_verification_accumulator_set<ProcessingMode>,
                 typename StreamSchemeImpl = pubkey::detail::value_pubkey_impl<VerificationAccumulator>,
                 typename SchemeImpl = pubkey::detail::range_pubkey_impl<StreamSchemeImpl>>
        SchemeImpl verify_share(InputIterator first, InputIterator last, const pubkey::public_share_sss<Scheme> &s) {
 
            return SchemeImpl(first, last, VerificationAccumulator(s));
        }
 
        template<typename Scheme, typename SinglePassRange,
                 typename ProcessingMode = pubkey::share_verification_processing_mode_default<Scheme>,
                 typename VerificationAccumulator = typename pubkey::share_verification_accumulator_set<ProcessingMode>,
                 typename StreamSchemeImpl = pubkey::detail::value_pubkey_impl<VerificationAccumulator>,
                 typename SchemeImpl = pubkey::detail::range_pubkey_impl<StreamSchemeImpl>>
        SchemeImpl verify_share(const SinglePassRange &range, const pubkey::public_share_sss<Scheme> &s) {
 
            return SchemeImpl(range, VerificationAccumulator(s));
        }
    }    // namespace crypto3
}    // namespace nil
 
#endif    // include guard