/* * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. * * Copyright 2016-2018 Danny Robson <danny@nerdcruft.net> */ #ifndef CRUFT_UTIL_HASH_SIPHASH_HPP #define CRUFT_UTIL_HASH_SIPHASH_HPP #include "../view.hpp" #include <cstdint> #include <type_traits> namespace cruft::hash { template <int CompressionsV = 2, int FinalisationsV = 4> class siphash { public: using digest_t = std::uint64_t; static constexpr auto compression_rounds = CompressionsV; static constexpr auto finalisation_rounds = FinalisationsV; siphash (std::array<uint64_t,2>) noexcept; digest_t operator() (cruft::view<const std::uint8_t*> data) const noexcept; private: std::array<uint64_t,2> m_key; }; }; #endif