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cn_slow_hash.h
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1// Copyrights(c) 2017-2021, The Electroneum Project
2// Copyrights(c) 2014-2019, The Monero Project
3//
4// All rights reserved.
5//
6// Redistribution and use in source and binary forms, with or without modification, are
7// permitted provided that the following conditions are met:
8//
9// 1. Redistributions of source code must retain the above copyright notice, this list of
10// conditions and the following disclaimer.
11//
12// 2. Redistributions in binary form must reproduce the above copyright notice, this list
13// of conditions and the following disclaimer in the documentation and/or other
14// materials provided with the distribution.
15//
16// 3. Neither the name of the copyright holder nor the names of its contributors may be
17// used to endorse or promote products derived from this software without specific
18// prior written permission.
19//
20// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
21// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
22// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
23// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
27// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
28// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29//
30// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
31
32#pragma once
33
34#include "string_tools.h"
35#include "crypto/crypto.h"
37
38template<unsigned int variant>
40{
41public:
42 static const size_t loop_count = 10;
43
44#pragma pack(push, 1)
45 struct data_t
46 {
47 char data[43];
48 };
49#pragma pack(pop)
50
51 static_assert(43 == sizeof(data_t), "Invalid structure size");
52
53 bool init()
54 {
55 if (!epee::string_tools::hex_to_pod("63617665617420656d70746f763617665617420656d70746f72263617665617420656d70746f7201020304", m_data))
56 return false;
57
58 return true;
59 }
60
61 bool test()
62 {
63 crypto::hash hash;
64 crypto::cn_slow_hash(&m_data, sizeof(m_data), hash, variant);
65 return true;
66 }
67
68private:
69 data_t m_data;
70};
static const size_t loop_count
void cn_slow_hash(const void *data, size_t length, char *hash, int variant, int prehashed, uint64_t height)
POD_CLASS hash
Definition hash.h:50
bool hex_to_pod(const std::string &hex_str, t_pod_type &s)