blob: e5f6f0464fdb0dc730be4f4f0661a174c0bc0f4c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
// Copyright (c) 2017-2020 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_CRYPTO_MUHASH_H
#define BITCOIN_CRYPTO_MUHASH_H
#if defined(HAVE_CONFIG_H)
#include <config/bitcoin-config.h>
#endif
#include <serialize.h>
#include <uint256.h>
#include <stdint.h>
class Num3072
{
private:
void FullReduce();
bool IsOverflow() const;
Num3072 GetInverse() const;
public:
#ifdef HAVE___INT128
typedef unsigned __int128 double_limb_t;
typedef uint64_t limb_t;
static constexpr int LIMBS = 48;
static constexpr int LIMB_SIZE = 64;
#else
typedef uint64_t double_limb_t;
typedef uint32_t limb_t;
static constexpr int LIMBS = 96;
static constexpr int LIMB_SIZE = 32;
#endif
limb_t limbs[LIMBS];
// Sanity check for Num3072 constants
static_assert(LIMB_SIZE * LIMBS == 3072, "Num3072 isn't 3072 bits");
static_assert(sizeof(double_limb_t) == sizeof(limb_t) * 2, "bad size for double_limb_t");
static_assert(sizeof(limb_t) * 8 == LIMB_SIZE, "LIMB_SIZE is incorrect");
// Hard coded values in MuHash3072 constructor and Finalize
static_assert(sizeof(limb_t) == 4 || sizeof(limb_t) == 8, "bad size for limb_t");
void Multiply(const Num3072& a);
void Divide(const Num3072& a);
void SetToOne();
void Square();
Num3072() { this->SetToOne(); };
SERIALIZE_METHODS(Num3072, obj)
{
for (auto& limb : obj.limbs) {
READWRITE(limb);
}
}
};
#endif // BITCOIN_CRYPTO_MUHASH_H
|
