// Copyright (c) 2014-2020, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
#pragma once
#include <stddef.h>
#include <iostream>
#include "common/pod-class.h"
#include "generic-ops.h"
#include "hex.h"
#include "span.h"
namespace crypto {
extern "C" {
#include "hash-ops.h"
}
#pragma pack(push, 1)
POD_CLASS hash {
char data[HASH_SIZE];
};
POD_CLASS hash8 {
char data[8];
};
#pragma pack(pop)
static_assert(sizeof(hash) == HASH_SIZE, "Invalid structure size");
static_assert(sizeof(hash8) == 8, "Invalid structure size");
/*
Cryptonight hash functions
*/
inline void cn_fast_hash(const void *data, std::size_t length, hash &hash) {
cn_fast_hash(data, length, reinterpret_cast<char *>(&hash));
}
inline hash cn_fast_hash(const void *data, std::size_t length) {
hash h;
cn_fast_hash(data, length, reinterpret_cast<char *>(&h));
return h;
}
inline void cn_slow_hash(const void *data, std::size_t length, hash &hash, int variant = 0, uint64_t height = 0) {
cn_slow_hash(data, length, reinterpret_cast<char *>(&hash), variant, 0/*prehashed*/, height);
}
inline void cn_slow_hash_prehashed(const void *data, std::size_t length, hash &hash, int variant = 0, uint64_t height = 0) {
cn_slow_hash(data, length, reinterpret_cast<char *>(&hash), variant, 1/*prehashed*/, height);
}
inline void tree_hash(const hash *hashes, std::size_t count, hash &root_hash) {
tree_hash(reinterpret_cast<const char (*)[HASH_SIZE]>(hashes), count, reinterpret_cast<char *>(&root_hash));
}
inline std::ostream &operator <<(std::ostream &o, const crypto::hash &v) {
epee::to_hex::formatted(o, epee::as_byte_span(v)); return o;
}
inline std::ostream &operator <<(std::ostream &o, const crypto::hash8 &v) {
epee::to_hex::formatted(o, epee::as_byte_span(v)); return o;
}
constexpr static crypto::hash null_hash = {};
constexpr static crypto::hash8 null_hash8 = {};
}
CRYPTO_MAKE_HASHABLE(hash)
CRYPTO_MAKE_COMPARABLE(hash8)
