34 lines
905 B
C++
34 lines
905 B
C++
/*
|
|
* 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 2016-2022 Danny Robson <danny@nerdcruft.net>
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "../view.hpp"
|
|
|
|
#include <cstdint>
|
|
#include <type_traits>
|
|
#include <span>
|
|
|
|
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;
|
|
siphash (std::span<u08, 16>) noexcept;
|
|
|
|
digest_t operator() (cruft::view<const std::uint8_t*> data) const noexcept;
|
|
|
|
private:
|
|
std::array<uint64_t,2> m_key;
|
|
};
|
|
}; |