Monero
Loading...
Searching...
No Matches
cn_fast_hash.h
Go to the documentation of this file.
1// Copyright (c) 2014-2022, The Monero Project
2//
3// All rights reserved.
4//
5// Redistribution and use in source and binary forms, with or without modification, are
6// permitted provided that the following conditions are met:
7//
8// 1. Redistributions of source code must retain the above copyright notice, this list of
9// conditions and the following disclaimer.
10//
11// 2. Redistributions in binary form must reproduce the above copyright notice, this list
12// of conditions and the following disclaimer in the documentation and/or other
13// materials provided with the distribution.
14//
15// 3. Neither the name of the copyright holder nor the names of its contributors may be
16// used to endorse or promote products derived from this software without specific
17// prior written permission.
18//
19// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
20// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
21// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
22// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
26// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
27// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28//
29// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
30
31#pragma once
32
33#include "crypto/crypto.h"
35
36template<size_t bytes>
38{
39public:
40 static const size_t loop_count = bytes < 256 ? 100000 : bytes < 4096 ? 10000 : 1000;
41
42 bool init()
43 {
44 crypto::rand(bytes, m_data.data());
45 return true;
46 }
47
48 bool test()
49 {
50 crypto::hash hash;
51 crypto::cn_fast_hash(&m_data, bytes, hash);
52 return true;
53 }
54
55private:
56 std::array<uint8_t, bytes> m_data;
57};
Definition cn_fast_hash.h:38
std::array< uint8_t, bytes > m_data
Definition cn_fast_hash.h:56
bool test()
Definition cn_fast_hash.h:48
bool init()
Definition cn_fast_hash.h:42
static const size_t loop_count
Definition cn_fast_hash.h:40
T rand()
Definition crypto.h:174
void cn_fast_hash(const void *data, size_t length, char *hash)
POD_CLASS hash
Definition hash.h:49