danicoin/src/crypto/hash.h
2015-07-30 16:22:07 +01:00

79 lines
2.4 KiB
C++

// Copyright (c) 2012-2015, The CryptoNote developers, The Bytecoin developers
//
// This file is part of Bytecoin.
//
// Bytecoin is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Bytecoin is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with Bytecoin. If not, see <http://www.gnu.org/licenses/>.
#pragma once
#include <stddef.h>
#include <CryptoTypes.h>
#include "generic-ops.h"
namespace Crypto {
extern "C" {
#include "hash-ops.h"
}
/*
Cryptonight hash functions
*/
inline void cn_fast_hash(const void *data, size_t length, Hash &hash) {
cn_fast_hash(data, length, reinterpret_cast<char *>(&hash));
}
inline Hash cn_fast_hash(const void *data, size_t length) {
Hash h;
cn_fast_hash(data, length, reinterpret_cast<char *>(&h));
return h;
}
class cn_context {
public:
cn_context();
~cn_context();
#if !defined(_MSC_VER) || _MSC_VER >= 1800
cn_context(const cn_context &) = delete;
void operator=(const cn_context &) = delete;
#endif
private:
void *data;
friend inline void cn_slow_hash(cn_context &, const void *, size_t, Hash &);
};
inline void cn_slow_hash(cn_context &context, const void *data, size_t length, Hash &hash) {
(*cn_slow_hash_f)(context.data, data, length, reinterpret_cast<void *>(&hash));
}
inline void tree_hash(const Hash *hashes, size_t count, Hash &root_hash) {
tree_hash(reinterpret_cast<const char (*)[HASH_SIZE]>(hashes), count, reinterpret_cast<char *>(&root_hash));
}
inline void tree_branch(const Hash *hashes, size_t count, Hash *branch) {
tree_branch(reinterpret_cast<const char (*)[HASH_SIZE]>(hashes), count, reinterpret_cast<char (*)[HASH_SIZE]>(branch));
}
inline void tree_hash_from_branch(const Hash *branch, size_t depth, const Hash &leaf, const void *path, Hash &root_hash) {
tree_hash_from_branch(reinterpret_cast<const char (*)[HASH_SIZE]>(branch), depth, reinterpret_cast<const char *>(&leaf), path, reinterpret_cast<char *>(&root_hash));
}
}
CRYPTO_MAKE_HASHABLE(Hash)