608fd6f14a
This is the first variant of many, with the intent to improve Monero's resistance to ASICs and encourage mining decentralization.
95 lines
3.4 KiB
C++
95 lines
3.4 KiB
C++
// Copyright (c) 2014-2018, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
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#pragma once
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#include <stddef.h>
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#include <iostream>
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#include <boost/utility/value_init.hpp>
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#include "common/pod-class.h"
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#include "generic-ops.h"
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#include "hex.h"
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#include "span.h"
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namespace crypto {
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extern "C" {
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#include "hash-ops.h"
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}
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#pragma pack(push, 1)
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POD_CLASS hash {
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char data[HASH_SIZE];
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};
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POD_CLASS hash8 {
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char data[8];
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};
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#pragma pack(pop)
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static_assert(sizeof(hash) == HASH_SIZE, "Invalid structure size");
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static_assert(sizeof(hash8) == 8, "Invalid structure size");
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/*
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Cryptonight hash functions
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*/
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inline void cn_fast_hash(const void *data, std::size_t length, hash &hash) {
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cn_fast_hash(data, length, reinterpret_cast<char *>(&hash));
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}
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inline hash cn_fast_hash(const void *data, std::size_t length) {
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hash h;
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cn_fast_hash(data, length, reinterpret_cast<char *>(&h));
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return h;
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}
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inline void cn_slow_hash(const void *data, std::size_t length, hash &hash, int variant = 0) {
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cn_slow_hash(data, length, reinterpret_cast<char *>(&hash), variant);
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}
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inline void tree_hash(const hash *hashes, std::size_t count, hash &root_hash) {
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tree_hash(reinterpret_cast<const char (*)[HASH_SIZE]>(hashes), count, reinterpret_cast<char *>(&root_hash));
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}
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inline std::ostream &operator <<(std::ostream &o, const crypto::hash &v) {
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epee::to_hex::formatted(o, epee::as_byte_span(v)); return o;
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}
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inline std::ostream &operator <<(std::ostream &o, const crypto::hash8 &v) {
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epee::to_hex::formatted(o, epee::as_byte_span(v)); return o;
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}
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const static crypto::hash null_hash = boost::value_initialized<crypto::hash>();
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const static crypto::hash8 null_hash8 = boost::value_initialized<crypto::hash8>();
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}
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CRYPTO_MAKE_HASHABLE(hash)
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CRYPTO_MAKE_COMPARABLE(hash8)
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